From 090005f6b943bf196f75e91c5e5228e305b22a58 Mon Sep 17 00:00:00 2001 From: Matteo Benedetto Date: Sun, 20 Sep 2026 17:29:14 +0200 Subject: [PATCH] cellar-cli-c: client CLI di Cellar reimplementato in C (statico, retrocompatibile) Reimplementazione fedele di cellar-cli.py (enne2/cellar @ f5216b1) in C99 POSIX.1-2008, mono-thread, senza dipendenze esterne: miniz e' vendored per deflate/inflate raw, mentre contenitore gzip, multipart/form-data in streaming, tar PAX/ustar, JSON e client HTTP/1.1 sono scritti a mano. - 7 comandi (list, upload, download, install, scan-local, wizard-upload, wizard-install) con stdout/stderr/exit code identici al client Python - 30/30 test di parita' (tests/parity_test.sh) contro due server mock indipendenti: output a confronto, alberi installati, interop tar con tarfile di Python e con GNU tar, archivio C equivalente a quello Python - build statiche x86-64 / i686 / aarch64: nessun simbolo GLIBC richiesto, nessuna syscall moderna (statx/openat2/memfd_create/getrandom), LFS 64 bit, resolver DNS di riserva (hosts + query UDP) per glibc statica senza NSS - miglioramento rispetto all'originale: upload multipart in streaming invece di leggere l'intero archivio in RAM - divergenze volute documentate nel README (help piu' sintetico, mtime dei symlink non ripristinato come tarfile, EOF nei prompt, niente TLS) Build: make | make 32 | make arm64 | make test | make verify --- .gitignore | 8 + Makefile | 56 + README.md | 153 + src/bottle.c | 299 ++ src/bottle.h | 72 + src/common.c | 389 ++ src/common.h | 107 + src/config.c | 139 + src/config.h | 22 + src/fsutil.c | 349 ++ src/fsutil.h | 42 + src/gzip.c | 330 ++ src/gzip.h | 24 + src/http.c | 1103 ++++++ src/http.h | 71 + src/json.c | 508 +++ src/json.h | 40 + src/main.c | 470 +++ src/multipart.c | 108 + src/multipart.h | 39 + src/ops.c | 382 ++ src/ops.h | 19 + src/tar.c | 881 +++++ src/tar.h | 19 + src/ui.c | 167 + src/ui.h | 15 + src/wizard.c | 214 + src/wizard.h | 10 + tests/compare_trees.py | 74 + tests/make_fake_bottle.sh | 44 + tests/mock_server.py | 191 + tests/parity_test.sh | 252 ++ tests/ref/README.md | 10 + tests/ref/cellar-cli.py | 679 ++++ tests/tar_compare.py | 66 + tests/tar_dump.py | 45 + tests/verify_binary.sh | 67 + third_party/miniz.LICENSE | 22 + third_party/miniz.c | 7833 +++++++++++++++++++++++++++++++++++++ third_party/miniz.h | 1422 +++++++ 40 files changed, 16741 insertions(+) create mode 100644 .gitignore create mode 100644 Makefile create mode 100644 README.md create mode 100644 src/bottle.c create mode 100644 src/bottle.h create mode 100644 src/common.c create mode 100644 src/common.h create mode 100644 src/config.c create mode 100644 src/config.h create mode 100644 src/fsutil.c create mode 100644 src/fsutil.h create mode 100644 src/gzip.c create mode 100644 src/gzip.h create mode 100644 src/http.c create mode 100644 src/http.h create mode 100644 src/json.c create mode 100644 src/json.h create mode 100644 src/main.c create mode 100644 src/multipart.c create mode 100644 src/multipart.h create mode 100644 src/ops.c create mode 100644 src/ops.h create mode 100644 src/tar.c create mode 100644 src/tar.h create mode 100644 src/ui.c create mode 100644 src/ui.h create mode 100644 src/wizard.c create mode 100644 src/wizard.h create mode 100755 tests/compare_trees.py create mode 100755 tests/make_fake_bottle.sh create mode 100755 tests/mock_server.py create mode 100755 tests/parity_test.sh create mode 100644 tests/ref/README.md create mode 100644 tests/ref/cellar-cli.py create mode 100755 tests/tar_compare.py create mode 100755 tests/tar_dump.py create mode 100755 tests/verify_binary.sh create mode 100644 third_party/miniz.LICENSE create mode 100644 third_party/miniz.c create mode 100644 third_party/miniz.h diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..73f06e5 --- /dev/null +++ b/.gitignore @@ -0,0 +1,8 @@ +# artefatti di build +dist/ +build/ +*.o +*.d + +# output dei test +tests/tmp/ diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..ea840fd --- /dev/null +++ b/Makefile @@ -0,0 +1,56 @@ +# cellar-cli-c — reimplementazione C del client CLI di Cellar +# +# Target principali: +# make -> dist/cellar-cli (x86-64 statico, glibc) +# make 32 -> dist/cellar-cli-i686 (i686 statico, per sistemi 32 bit) +# make arm64 -> dist/cellar-cli-aarch64 (aarch64 statico via cross toolchain) +# make dist -> tutti e tre +# make verify -> controlla dipendenze, simboli GLIBC richiesti, ldd, size +# make test -> parity test contro il client Python (server mock incluso) +# make asan -> build dinamica con AddressSanitizer/UBSan per i test + +CC ?= gcc +AARCH64_CC ?= $(HOME)/toolchains/arm-gnu-toolchain-13.2.Rel1-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-gcc + +CFLAGS ?= -std=c99 -O2 -Wall -Wextra -Wno-unused-parameter +CPPFLAGS += -D_POSIX_C_SOURCE=200809L -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Isrc -Ithird_party + +SRCS := $(wildcard src/*.c) third_party/miniz.c +DIST := dist +NAME := cellar-cli + +.PHONY: all 32 arm64 dist verify test asan clean + +all: $(DIST)/$(NAME) + +$(DIST)/$(NAME): $(SRCS) + @mkdir -p $(DIST) + $(CC) $(CFLAGS) $(CPPFLAGS) -static -static-libgcc -s -o $@ $(SRCS) + +$(DIST)/$(NAME)-i686: $(SRCS) + @mkdir -p $(DIST) + $(CC) -m32 $(CFLAGS) $(CPPFLAGS) -static -static-libgcc -s -o $@ $(SRCS) + +$(DIST)/$(NAME)-aarch64: $(SRCS) + @mkdir -p $(DIST) + $(AARCH64_CC) $(CFLAGS) $(CPPFLAGS) -static -s -o $@ $(SRCS) + +32: $(DIST)/$(NAME)-i686 +arm64: $(DIST)/$(NAME)-aarch64 +dist: all 32 arm64 + +# Build dinamica con sanitizzatori: usata dai test di parità. +$(DIST)/$(NAME)-asan: $(SRCS) + @mkdir -p $(DIST) + $(CC) -g -O1 -fsanitize=address,undefined -fno-omit-frame-pointer $(CFLAGS) $(CPPFLAGS) -o $@ $(SRCS) + +asan: $(DIST)/$(NAME)-asan + +verify: all + tests/verify_binary.sh $(DIST)/$(NAME) + +test: asan + tests/parity_test.sh + +clean: + rm -rf $(DIST) build tests/tmp diff --git a/README.md b/README.md new file mode 100644 index 0000000..248c653 --- /dev/null +++ b/README.md @@ -0,0 +1,153 @@ +# cellar-cli-c + +Reimplementazione in **C** del client CLI di [Cellar](https://git.enne2.net/enne2/cellar) +(`cellar-cli.py`), con l'obiettivo di un binario **il più retrocompatibile possibile**: +statico, senza dipendenze, compilabile anche per i686 e aarch64 (handheld). + +Autore: Matteo Benedetto — progetto derivato da `enne2/cellar` (commit `f5216b1`). + +## Stato + +| | | +|---|---| +| Comandi | `list`, `upload`, `download`, `install`, `scan-local`, `wizard-upload`, `wizard-install` | +| Codice | ~5.800 righe C99 (POSIX.1-2008), mono-thread | +| Dipendenze | nessuna: `miniz` vendored (deflate/inflate), resto scritto a mano | +| Parità col client Python | **30/30** test automatici (`tests/parity_test.sh`), output byte-identico | +| Build | `x86_64` static, `i686` static, `aarch64` static (cross) | +| Installazione locale | `~/.local/bin/cellar-cli` → symlink a `dist/cellar-cli` | + +## Build + +```bash +make # dist/cellar-cli (x86-64 statico, glibc) +make asan # dist/cellar-cli-asan (dinamico con ASan/UBSan, per i test) +make 32 # dist/cellar-cli-i686 (statico 32 bit) +make arm64 # dist/cellar-cli-aarch64 (cross toolchain ARM GNU 13.2, statico) +make dist # tutti e tre +make verify # analisi di portabilità del binario (vd. sotto) +make test # test di parità contro il client Python (server mock inclusi) +make clean +``` + +Variabili utili: `CC=...`, `AARCH64_CC=...` (default `~/toolchains/arm-gnu-toolchain-13.2.Rel1-x86_64-aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-gcc`). + +Installazione nel PATH (utente, nessun root): + +```bash +ln -sfn "$PWD/dist/cellar-cli" ~/.local/bin/cellar-cli +``` + +## Configurazione + +Stesso file del client Python: `~/.cellar.conf` + +```ini +[cellar] +server = http://brain.vpn:8080 +bottles_dir = /home/enne2/.var/app/com.usebottles.bottles/data/bottles/bottles +``` + +Se il file non esiste viene creato con i default (e l'avviso su stderr), esattamente +come fa `configparser` nel client Python. `--server URL` ha la precedenza. + +## Comandi + +```bash +cellar-cli list # elenca gli archivi sul server +cellar-cli upload Backup.tar.gz --name 'Gioco' --bottle-name 'Gioco' \ + --description '...' --tags 'gog,rpg' --arch win32 --runner soda-9.0-1 \ + --windows-version win10 # upload multipart (streaming) +cellar-cli download 3 ~/Downloads/ # nome file dal Content-Disposition +cellar-cli install 'Gioco' [--replace] # scarica, estrae, installa nella dir Bottles +cellar-cli scan-local [--json] # bottiglie locali (legge bottle.yml) +cellar-cli wizard-upload | wizard-install # flussi interattivi +cellar-cli --server http://10.8.0.3:8080 list # override del server +``` + +Exit code: `0` ok, `1` errore HTTP/rete/file, `2` argomenti non validi (come argparse). + +## Retrocompatibilità (le scelte che contano) + +- **Binario statico** (`-static`): nessuna dipendenza da glibc a runtime, quindi gira su + distro vecchie e firmware con glibc più vecchia di quella di build. `make verify` + riporta la nota ABI (`for GNU/Linux 3.2.0`) e l'assenza di simboli `GLIBC_*`. +- **Solo syscall classiche**: `open/read/write/stat/lstat/rename/mkdir/symlink/link/utimensat/chmod/poll`. + Nessun `statx`, `openat2`, `O_TMPFILE`, `memfd_create`, `getrandom`, `close_range` + (verificato automaticamente da `tests/verify_binary.sh`). +- **Large File Support**: `-D_FILE_OFFSET_BITS=64` (le bottiglie Cellar arrivano a 1,3 GB). +- **Resolver di riserva**: se `getaddrinfo` fallisce (tipico di una glibc statica senza + NSS a runtime), si passa a `/etc/hosts` e poi a una query DNS diretta su UDP leggendo + `/etc/resolv.conf`. Nessuna dipendenza da `nss_dns`/`nss_files`. +- **32 bit e aarch64**: `-m32` per sistemi i686 (i vecchi handheld/console), cross + aarch64 per muOS/RG40XXH; il binario è statico anche lì, quindi non eredita il + problema "toolchain Debian 13 (glibc 2.41) vs firmware (glibc 2.38)". +- **gzip autonomo**: miniz viene usato solo per deflate/inflate *raw*, mentre header e + trailer gzip (CRC32 + ISIZE) sono gestiti a mano: la API `mz_deflate`/`mz_inflate` + di miniz non supporta il contenitore gzip, e così non serve alcuna libreria zlib + (nemmeno per il cross build aarch64). + +## Parità col client Python + +`tests/parity_test.sh` avvia **due server mock indipendenti** (stesso stato iniziale) e +confronta per ogni caso stdout, stderr ed exit code del binario C e di +`tests/ref/cellar-cli.py` (copia verbatim del client originale). Copre: list, upload, +download (su file e su directory), install (prima volta / esistente / `--replace` / +ref inesistente), 404, server irraggiungibile, entrambi i wizard con input da pipe, +sei casi di errore di argomenti, più verifiche sugli artefatti: + +- il download produce byte identici all'upload; +- l'albero installato (tipo, permessi, dimensione, target dei symlink, contenuto, + mtime) è identico tra i due client; +- l'archivio creato dal writer C è **equivalente** a quello creato da `tarfile` + (confronto membro per membro) ed è leggibile da Python e da GNU tar; +- Python riesce a estrarre l'archivio scritto in C con metadata identici. + +### Differenze note e volute + +| Aspetto | Comportamento | +|---|---| +| `--help` / usage | Struttura e messaggi di errore di argparse riprodotti; il testo descrittivo del `--help` è più sintetico | +| Tar: `mtime` PAX | Scritto con 7 decimali (Python usa `repr()` del float): differenza massima ~1e-7 s | +| Tar: **mtime dei symlink in estrazione** | Non ripristinato, come `tarfile` (`if not tarinfo.issym()`): resta l'istante di estrazione. `tests/compare_trees.py` lo tiene presente | +| Tar: entry speciali (device) | Saltate con warning su stderr invece di interrompere l'estrazione | +| Confronto nomi case-insensitive | ASCII (`tolower`) invece di `str.lower()` Unicode | +| EOF su una richiesta interattiva | Python solleva `EOFError` (exit 1); qui si stampa `EOFError: EOF when reading a line` e si esce **1**. Nei prompt con default (nome archivio, descrizione…) su EOF si applica il default, così i wizard restano usabili da script | +| Upload multipart | In **streaming** (il client Python legge l'intero archivio in RAM) | +| TLS | Non supportato (niente OpenSSL): serve `http://`, oppure un reverse proxy TLS. Il server Cellar è HTTP | +| Timeout di rete | Connect 15 s, I/O 300 s (urllib non ha timeout) | +| Redirect | Seguiti come `urllib.request`: GET/HEAD su 301/302/303/307/308, POST→GET su 301/302/303 | + +## Test e verifica + +```bash +make test # parità (usa la build ASan) +C_BIN=dist/cellar-cli tests/parity_test.sh # parità con il binario statico +make verify # file/ldd/ABI/simboli GLIBC/syscall/smoke test +``` + +## Struttura + +``` +src/common.{c,h} errori, dynbuf, memoria, UTF-8, path, normalizzazione sicura +src/json.{c,h} parser JSON minimale + escaper ensure_ascii +src/http.{c,h} HTTP/1.1 su socket: URL, redirect, chunked, resolver di riserva +src/multipart.{c,h} multipart/form-data in streaming +src/gzip.{c,h} flusso gzip (RFC1952) su deflate raw di miniz +src/tar.{c,h} tar writer PAX/ustar (come tarfile) + extractor con controllo traversal +src/fsutil.{c,h} mkdir -p, rm -r, copia ricorsiva, move con fallback EXDEV, temp dir +src/config.{c,h} ~/.cellar.conf (INI in stile configparser) +src/bottle.{c,h} record archivi, scansione bottiglie, bottle.yml, backup +src/ui.{c,h} tabelle e JSON con larghezze in code point (come le f-string) +src/ops.{c,h} list/upload/download/install +src/wizard.{c,h} flussi interattivi +src/main.c CLI e messaggi di errore in stile argparse +third_party/ miniz (unlicense/MIT) + licenza +tests/ mock server, bottiglia finta, parità, confronti, verifica binario +``` + +## Licenza e crediti + +Codice del progetto **Cellar** di Matteo Benedetto (`enne2/cellar`), di cui questa è una +reimplementazione in C. `third_party/miniz` è distribuito con licenza *unlicense/MIT* +(vd. `third_party/miniz.LICENSE`). diff --git a/src/bottle.c b/src/bottle.c new file mode 100644 index 0000000..e816d22 --- /dev/null +++ b/src/bottle.c @@ -0,0 +1,299 @@ +/* bottle.c — parsing JSON degli archivi, scansione delle bottiglie locali e + * creazione del backup (equivalente di collect_local_bottles / create_bottle_backup). */ +#include "bottle.h" +#include "fsutil.h" +#include "json.h" +#include "tar.h" + +#include +#include +#include +#include +#include + +#ifndef PATH_MAX +#define PATH_MAX 4096 +#endif + +static char *dup_opt(const jval *o, const char *key, cerror *e) +{ + const jval *v = json_obj_get(o, key); + if (json_is_null(v)) + return NULL; + const char *s = json_as_str(v); + if (!s) + return NULL; + return xstrdup(s, e); +} + +int archives_parse(const char *json, size_t len, archive_list *out, cerror *e) +{ + out->items = NULL; + out->n = 0; + char errbuf[256]; + jval *root = json_parse(json, len, errbuf, sizeof(errbuf)); + if (!root) { + err_set(e, ERR_MISC, 0, "invalid JSON from server: %s", errbuf); + return -1; + } + if (root->t != JARR) { + json_free(root); + err_set(e, ERR_MISC, 0, "invalid JSON from server: expected an array"); + return -1; + } + size_t n = json_arr_len(root); + archive_list l; + l.items = xmalloc(n * sizeof(*l.items), e); + if (!l.items) { + json_free(root); + return -1; + } + l.n = 0; + for (size_t i = 0; i < n; i++) { + const jval *o = json_arr_at(root, i); + if (!o || o->t != JOBJ) + continue; + archive_rec r; + memset(&r, 0, sizeof(r)); + char *ids = NULL; + const jval *idv = json_obj_get(o, "id"); + r.id = (long long)json_as_num(idv); + (void)ids; + const jval *szv = json_obj_get(o, "size_bytes"); + r.size_bytes = (long long)json_as_num(szv); + r.name = dup_opt(o, "name", e); + r.bottle_name = dup_opt(o, "bottle_name", e); + r.description = dup_opt(o, "description", e); + r.tags = dup_opt(o, "tags", e); + r.arch = dup_opt(o, "arch", e); + r.runner = dup_opt(o, "runner", e); + r.windows_version = dup_opt(o, "windows_version", e); + r.file_name = dup_opt(o, "file_name", e); + r.content_type = dup_opt(o, "content_type", e); + r.sha256 = dup_opt(o, "sha256", e); + r.created_at = dup_opt(o, "created_at", e); + l.items[l.n++] = r; + } + json_free(root); + *out = l; + return 0; +} + +void archives_free(archive_list *l) +{ + for (size_t i = 0; i < l->n; i++) { + archive_rec *r = &l->items[i]; + free(r->name); + free(r->bottle_name); + free(r->description); + free(r->tags); + free(r->arch); + free(r->runner); + free(r->windows_version); + free(r->file_name); + free(r->content_type); + free(r->sha256); + free(r->created_at); + } + free(l->items); + l->items = NULL; + l->n = 0; +} + +static int eq_nocase(const char *a, const char *b) +{ + if (!a || !b) + return 0; + while (*a && *b) { + if (tolower((unsigned char)*a) != tolower((unsigned char)*b)) + return 0; + a++; + b++; + } + return *a == '\0' && *b == '\0'; +} + +long archives_find(const archive_list *l, const char *ref) +{ + for (size_t i = 0; i < l->n; i++) { + if (eq_nocase(l->items[i].bottle_name, ref)) + return (long)i; + } + for (size_t i = 0; i < l->n; i++) { + if (eq_nocase(l->items[i].name, ref)) + return (long)i; + } + return -1; +} + +void bottles_free(bottle_list *l) +{ + for (size_t i = 0; i < l->n; i++) { + bottle_rec *b = &l->items[i]; + free(b->name); + free(b->directory); + free(b->path); + free(b->arch); + free(b->runner); + free(b->environment); + free(b->windows); + } + free(l->items); + l->items = NULL; + l->n = 0; +} + +void bottle_meta_free(bottle_meta *m) +{ + free(m->name); + free(m->arch); + free(m->runner); + free(m->environment); + free(m->windows); + memset(m, 0, sizeof(*m)); +} + +static int wanted_key(const char *key) +{ + return !strcmp(key, "Name") || !strcmp(key, "Arch") || !strcmp(key, "Runner") || + !strcmp(key, "Environment") || !strcmp(key, "Windows"); +} + +static void strip_quotes(char *s) +{ + /* strip() di Python: rimuove spazi/quote a entrambi i lati */ + size_t len = strlen(s); + while (len > 0 && (s[len - 1] == '\'' || s[len - 1] == ' ' || s[len - 1] == '\t' || + s[len - 1] == '\r' || s[len - 1] == '\n')) + s[--len] = '\0'; + size_t start = 0; + while (s[start] == '\'' || s[start] == ' ' || s[start] == '\t') + start++; + if (start) + memmove(s, s + start, strlen(s + start) + 1); +} + +int bottle_meta_parse(const char *bottle_yml_path, bottle_meta *out, cerror *e) +{ + memset(out, 0, sizeof(*out)); + char *data = NULL; + size_t len = 0; + if (file_read_all(bottle_yml_path, &data, &len, e) != 0) + return -1; + + char *save = NULL; + for (char *line = strtok_r(data, "\n", &save); line; line = strtok_r(NULL, "\n", &save)) { + if (line[0] == ' ') + continue; /* come Python: le righe indentate sono ignorate */ + char *colon = strchr(line, ':'); + if (!colon) + continue; + *colon = '\0'; + char *key = line; + char *value = colon + 1; + if (!wanted_key(key)) + continue; + char cleaned[PATH_MAX * 2]; + snprintf(cleaned, sizeof(cleaned), "%s", value); + strip_quotes(cleaned); + char **dst = NULL; + if (!strcmp(key, "Name")) + dst = &out->name; + else if (!strcmp(key, "Arch")) + dst = &out->arch; + else if (!strcmp(key, "Runner")) + dst = &out->runner; + else if (!strcmp(key, "Environment")) + dst = &out->environment; + else if (!strcmp(key, "Windows")) + dst = &out->windows; + if (dst) { + free(*dst); + *dst = xstrdup(cleaned, e); + if (!*dst) { + free(data); + return -1; + } + } + } + free(data); + return 0; +} + +int bottles_scan(const char *bottles_dir, bottle_list *out, cerror *e) +{ + out->items = NULL; + out->n = 0; + if (!is_dir(bottles_dir)) + return 0; + + strlist dirs; + strlist_init(&dirs); + if (dir_list(bottles_dir, 1, &dirs, e) != 0) { + strlist_free(&dirs); + return -1; + } + + size_t cap = dirs.n ? dirs.n : 1; + out->items = xmalloc(cap * sizeof(*out->items), e); + if (!out->items) { + strlist_free(&dirs); + return -1; + } + for (size_t i = 0; i < dirs.n; i++) { + char yml[PATH_MAX]; + char full[PATH_MAX]; + if (path_join(full, sizeof(full), bottles_dir, dirs.names[i]) != 0 || + snprintf(yml, sizeof(yml), "%s/bottle.yml", full) >= (int)sizeof(yml)) + continue; + if (!is_regular(yml)) + continue; + + bottle_meta meta; + if (bottle_meta_parse(yml, &meta, e) != 0) { + strlist_free(&dirs); + bottles_free(out); + return -1; + } + bottle_rec b; + memset(&b, 0, sizeof(b)); + b.directory = xstrdup(dirs.names[i], e); + b.path = xstrdup(full, e); + b.name = meta.name ? meta.name : xstrdup(dirs.names[i], e); + b.arch = meta.arch ? meta.arch : xstrdup("-", e); + b.runner = meta.runner ? meta.runner : xstrdup("-", e); + b.environment = meta.environment ? meta.environment : xstrdup("-", e); + b.windows = meta.windows ? meta.windows : xstrdup("-", e); + /* i puntatori sono passati alla bottle_rec: non liberarli due volte */ + meta.name = meta.arch = meta.runner = meta.environment = meta.windows = NULL; + bottle_meta_free(&meta); + out->items[out->n++] = b; + } + strlist_free(&dirs); + return 0; +} + +int bottle_backup(const bottle_rec *b, const char *output_dir, char *out_path, size_t outsz, cerror *e) +{ + const char *dir = output_dir; + const char *tmp = getenv("TMPDIR"); + if (!dir || !*dir) + dir = (tmp && *tmp) ? tmp : "/tmp"; + + time_t now = time(NULL); + struct tm tmv; + localtime_r(&now, &tmv); + char stamp[32]; + strftime(stamp, sizeof(stamp), "%Y%m%d-%H%M%S", &tmv); + + char name[PATH_MAX]; + if (snprintf(name, sizeof(name), "%s-%s.tar.gz", b->directory, stamp) >= (int)sizeof(name)) { + err_set(e, ERR_FILE, 0, "archive name too long"); + return -1; + } + if (path_join(out_path, outsz, dir, name) != 0) { + err_set(e, ERR_FILE, 0, "archive path too long"); + return -1; + } + return tar_create(out_path, b->path, b->directory, e); +} diff --git a/src/bottle.h b/src/bottle.h new file mode 100644 index 0000000..ca6042c --- /dev/null +++ b/src/bottle.h @@ -0,0 +1,72 @@ +/* bottle.h — modelli dati: archivi remoti, bottiglie locali, backup. */ +#ifndef CELLAR_BOTTLE_H +#define CELLAR_BOTTLE_H + +#include "common.h" + +#include + +/* ---- record remoto (ArchiveRead del server) ---- */ +typedef struct { + long long id; + long long size_bytes; + char *name; /* puo' essere NULL per i campi opzionali */ + char *bottle_name; + char *description; + char *tags; + char *arch; + char *runner; + char *windows_version; + char *file_name; + char *content_type; + char *sha256; + char *created_at; +} archive_rec; + +typedef struct { + archive_rec *items; + size_t n; +} archive_list; + +int archives_parse(const char *json, size_t len, archive_list *out, cerror *e); +void archives_free(archive_list *l); +/* Indice dell'archivio che corrisponde a ref: prima bottle_name poi name, + * confronto case-insensitive. Ritorna -1 se non trovato. */ +long archives_find(const archive_list *l, const char *ref); + +/* ---- bottiglie locali ---- */ +typedef struct { + char *name; + char *directory; + char *path; + char *arch; + char *runner; + char *environment; + char *windows; +} bottle_rec; + +typedef struct { + bottle_rec *items; + size_t n; +} bottle_list; + +void bottles_free(bottle_list *l); +int bottles_scan(const char *bottles_dir, bottle_list *out, cerror *e); + +/* Campi letti da bottle.yml (Name/Arch/Runner/Environment/Windows). */ +typedef struct { + char *name; + char *arch; + char *runner; + char *environment; + char *windows; +} bottle_meta; + +void bottle_meta_free(bottle_meta *m); +int bottle_meta_parse(const char *bottle_yml_path, bottle_meta *out, cerror *e); + +/* Crea -YYYYmmdd-HHMMSS.tar.gz in output_dir (o TMPDIR) e ne + * restituisce il percorso in out_path. */ +int bottle_backup(const bottle_rec *b, const char *output_dir, char *out_path, size_t outsz, cerror *e); + +#endif /* CELLAR_BOTTLE_H */ diff --git a/src/common.c b/src/common.c new file mode 100644 index 0000000..d0d7815 --- /dev/null +++ b/src/common.c @@ -0,0 +1,389 @@ +/* common.c — implementazione delle primitive in common.h */ +#include "common.h" + +#include +#include +#include +#include + +/* ------------------------------------------------------------------ errori */ + +void err_clear(cerror *e) +{ + if (!e) + return; + e->kind = ERR_NONE; + e->code = 0; + e->msg[0] = '\0'; +} + +static void err_vset(cerror *e, errkind kind, int code, const char *fmt, va_list ap) +{ + if (!e) + return; + e->kind = kind; + e->code = code; + if (fmt) { + vsnprintf(e->msg, sizeof(e->msg), fmt, ap); + } else { + e->msg[0] = '\0'; + } +} + +void err_set(cerror *e, errkind kind, int code, const char *fmt, ...) +{ + va_list ap; + va_start(ap, fmt); + err_vset(e, kind, code, fmt, ap); + va_end(ap); +} + +void err_set_errno(cerror *e, errkind kind, const char *fmt, ...) +{ + va_list ap; + int saved = errno; + va_start(ap, fmt); + err_vset(e, kind, 0, fmt, ap); + va_end(ap); + if (e) { + size_t len = strlen(e->msg); + snprintf(e->msg + len, sizeof(e->msg) - len, ": %s", strerror(saved)); + } +} + +/* ------------------------------------------------------------- dynbuf */ + +void db_init(dynbuf *b) +{ + b->data = NULL; + b->len = 0; + b->cap = 0; +} + +void db_free(dynbuf *b) +{ + free(b->data); + db_init(b); +} + +int db_reserve(dynbuf *b, size_t extra, cerror *e) +{ + size_t need = b->len + extra + 1; + if (need <= b->cap) + return 0; + size_t cap = b->cap ? b->cap : 64; + while (cap < need) + cap *= 2; + char *p = realloc(b->data, cap); + if (!p) { + err_set(e, ERR_MISC, 0, "out of memory (%zu bytes)", cap); + return -1; + } + b->data = p; + b->cap = cap; + return 0; +} + +int db_append(dynbuf *b, const void *data, size_t len, cerror *e) +{ + if (db_reserve(b, len, e) != 0) + return -1; + memcpy(b->data + b->len, data, len); + b->len += len; + b->data[b->len] = '\0'; + return 0; +} + +int db_puts(dynbuf *b, const char *s, cerror *e) +{ + return db_append(b, s, strlen(s), e); +} + +int db_printf(dynbuf *b, cerror *e, const char *fmt, ...) +{ + va_list ap, ap2; + va_start(ap, fmt); + va_copy(ap2, ap); + int n = vsnprintf(NULL, 0, fmt, ap); + va_end(ap); + if (n < 0) { + va_end(ap2); + err_set(e, ERR_MISC, 0, "vsnprintf failed"); + return -1; + } + if (db_reserve(b, (size_t)n, e) != 0) { + va_end(ap2); + return -1; + } + vsnprintf(b->data + b->len, (size_t)n + 1, fmt, ap2); + va_end(ap2); + b->len += (size_t)n; + return 0; +} + +/* ------------------------------------------------------------- memoria */ + +void *xmalloc(size_t n, cerror *e) +{ + void *p = malloc(n ? n : 1); + if (!p) + err_set(e, ERR_MISC, 0, "out of memory (%zu bytes)", n); + return p; +} + +void *xrealloc(void *p, size_t n, cerror *e) +{ + void *q = realloc(p, n ? n : 1); + if (!q) + err_set(e, ERR_MISC, 0, "out of memory (%zu bytes)", n); + return q; +} + +char *xstrdup(const char *s, cerror *e) +{ + if (!s) + return NULL; + size_t n = strlen(s); + char *p = xmalloc(n + 1, e); + if (!p) + return NULL; + memcpy(p, s, n + 1); + return p; +} + +char *xstrndup(const char *s, size_t n, cerror *e) +{ + char *p = xmalloc(n + 1, e); + if (!p) + return NULL; + memcpy(p, s, n); + p[n] = '\0'; + return p; +} + +/* ------------------------------------------------------------- UTF-8 */ + +static size_t utf8_seq_len(unsigned char c) +{ + if (c < 0x80) + return 1; + if ((c & 0xE0) == 0xC0) + return 2; + if ((c & 0xF0) == 0xE0) + return 3; + if ((c & 0xF8) == 0xF0) + return 4; + return 1; /* byte non valido: conta come singolo code point */ +} + +size_t utf8_count(const char *s) +{ + size_t n = 0; + const unsigned char *p = (const unsigned char *)s; + while (*p) { + p += utf8_seq_len(*p); + n++; + } + return n; +} + +size_t utf8_prefix_bytes(const char *s, size_t max_chars) +{ + size_t bytes = 0, chars = 0; + const unsigned char *p = (const unsigned char *)s; + while (*p && chars < max_chars) { + size_t l = utf8_seq_len(*p); + bytes += l; + p += l; + chars++; + } + return bytes; +} + +/* ------------------------------------------------------------- path */ + +int path_join(char *out, size_t outsz, const char *a, const char *b) +{ + size_t la = strlen(a); + int need_sep = (la > 0 && a[la - 1] != '/'); + int n; + if (b == NULL || b[0] == '\0') + n = snprintf(out, outsz, "%s", a); + else + n = snprintf(out, outsz, "%s%s%s", a, need_sep ? "/" : "", b); + if (n < 0 || (size_t)n >= outsz) + return -1; + return 0; +} + +const char *path_basename(const char *p) +{ + const char *s = strrchr(p, '/'); + return s ? s + 1 : p; +} + +int path_normalize_inside(const char *base, const char *rel, char *out, size_t outsz) +{ + /* Replica del controllo di sicurezza di cellar-cli.py: + * member_path = (target_dir / member.name).resolve() + * if not str(member_path).startswith(str(target_dir.resolve())): raise + * Qui la risoluzione e' lessicale (non segue symlink): i nomi assoluti e + * le risalite che escono dalla destinazione vengono rifiutati. + */ + if (rel[0] == '/') + return -1; /* nome assoluto: Path(base)/"/x" == "/x" -> fuori */ + + char joined[8192]; + if (snprintf(joined, sizeof(joined), "%s/%s", base, rel) >= (int)sizeof(joined)) + return -1; + + int absolute = (joined[0] == '/'); + + /* stack di componenti normalizzate */ + char stack[8192]; + size_t slen = 0; + const char *p = joined; + while (*p) { + while (*p == '/') + p++; + if (!*p) + break; + const char *start = p; + while (*p && *p != '/') + p++; + size_t clen = (size_t)(p - start); + if (clen == 1 && start[0] == '.') + continue; + if (clen == 2 && start[0] == '.' && start[1] == '.') { + if (slen == 0) + return -1; + /* pop dell'ultima componente */ + while (slen > 0 && stack[slen - 1] != '/') + slen--; + if (slen > 0) + slen--; /* rimuove anche lo '/' separatore */ + continue; + } + if (slen + clen + 2 >= sizeof(stack)) + return -1; + if (slen > 0) + stack[slen++] = '/'; + memcpy(stack + slen, start, clen); + slen += clen; + } + stack[slen] = '\0'; + + if (slen == 0) + snprintf(out, outsz, "%s", absolute ? "/" : "."); + else if (absolute) + snprintf(out, outsz, "/%s", stack); + else + snprintf(out, outsz, "%s", stack); + return 0; +} + +int is_dir(const char *p) +{ + struct stat st; + return (stat(p, &st) == 0 && S_ISDIR(st.st_mode)) ? 1 : 0; +} + +int is_dir_nofollow(const char *p) +{ + struct stat st; + return (lstat(p, &st) == 0 && S_ISDIR(st.st_mode)) ? 1 : 0; +} + +int is_regular(const char *p) +{ + struct stat st; + return (stat(p, &st) == 0 && S_ISREG(st.st_mode)) ? 1 : 0; +} + +int path_exists(const char *p) +{ + struct stat st; + return lstat(p, &st) == 0 ? 1 : 0; +} + +int path_is_symlink(const char *p) +{ + struct stat st; + return (lstat(p, &st) == 0 && S_ISLNK(st.st_mode)) ? 1 : 0; +} + +/* ------------------------------------------------------------- file interi */ + +int file_read_all(const char *path, char **out, size_t *out_len, cerror *e) +{ + FILE *fp = fopen(path, "rb"); + if (!fp) { + err_set_errno(e, ERR_FILE, "cannot read %s", path); + return -1; + } + dynbuf b; + db_init(&b); + char tmp[65536]; + size_t n; + while ((n = fread(tmp, 1, sizeof(tmp), fp)) > 0) { + if (db_append(&b, tmp, n, e) != 0) { + fclose(fp); + db_free(&b); + return -1; + } + } + if (ferror(fp)) { + err_set_errno(e, ERR_FILE, "cannot read %s", path); + fclose(fp); + db_free(&b); + return -1; + } + fclose(fp); + if (!b.data) { + if (db_append(&b, "", 0, e) != 0) { + db_free(&b); + return -1; + } + } + *out = b.data; + *out_len = b.len; + return 0; +} + +int file_write_all(const char *path, const void *data, size_t len, cerror *e) +{ + FILE *fp = fopen(path, "wb"); + if (!fp) { + err_set_errno(e, ERR_FILE, "cannot write %s", path); + return -1; + } + if (len && fwrite(data, 1, len, fp) != len) { + err_set_errno(e, ERR_FILE, "cannot write %s", path); + fclose(fp); + return -1; + } + if (fclose(fp) != 0) { + err_set_errno(e, ERR_FILE, "cannot write %s", path); + return -1; + } + return 0; +} + +char *aprintf(cerror *e, const char *fmt, ...) +{ + va_list ap, ap2; + va_start(ap, fmt); + va_copy(ap2, ap); + int n = vsnprintf(NULL, 0, fmt, ap); + va_end(ap); + if (n < 0) { + va_end(ap2); + err_set(e, ERR_MISC, 0, "vsnprintf failed"); + return NULL; + } + char *s = xmalloc((size_t)n + 1, e); + if (s) + vsnprintf(s, (size_t)n + 1, fmt, ap2); + va_end(ap2); + return s; +} diff --git a/src/common.h b/src/common.h new file mode 100644 index 0000000..717828e --- /dev/null +++ b/src/common.h @@ -0,0 +1,107 @@ +/* common.h — primitive condivise: errori, dynbuf, memoria, UTF-8, path. + * + * cellar-cli-c: reimplementazione in C di cellar-cli.py (progetto Cellar). + * Target: C99 + POSIX.1-2008, nessuna estensione GNU, nessuna dipendenza + * esterna oltre alla libc. Pensato per essere compilato staticamente e + * funzionare su sistemi vecchi (glibc anziane, kernel >= 3.2 per la glibc + * statica) e su handheld (aarch64/muOS, i686). + */ +#ifndef CELLAR_COMMON_H +#define CELLAR_COMMON_H + +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif +#ifndef _FILE_OFFSET_BITS +#define _FILE_OFFSET_BITS 64 +#endif + +#include +#include +#include +#include +#include +#include + +#define CELLAR_VERSION "1.0.0" + +/* ------------------------------------------------------------------ errori */ + +/* Classi di errore: rispecchiano le eccezioni che cellar-cli.py traduce in + * messaggi distinti (HTTPError, URLError, FileNotFoundError) + gli errori di + * argparse (usage -> exit 2). */ +typedef enum { + ERR_NONE = 0, + ERR_USAGE, /* argomenti mancanti/errati: usage su stderr, exit 2 */ + ERR_HTTP, /* "HTTP : " exit 1 */ + ERR_NET, /* "Connection error: " exit 1 */ + ERR_FILE, /* "File error: " exit 1 */ + ERR_MISC /* messaggio generico su stderr exit 1 */ +} errkind; + +typedef struct { + errkind kind; + int code; /* codice HTTP quando kind == ERR_HTTP */ + char msg[1024]; +} cerror; + +void err_clear(cerror *e); +void err_set(cerror *e, errkind kind, int code, const char *fmt, ...); +void err_set_errno(cerror *e, errkind kind, const char *fmt, ...); + +/* ------------------------------------------------------------- dynbuf (stringhe) */ + +typedef struct { + char *data; + size_t len; + size_t cap; +} dynbuf; + +void db_init(dynbuf *b); +void db_free(dynbuf *b); +int db_reserve(dynbuf *b, size_t extra, cerror *e); +int db_append(dynbuf *b, const void *data, size_t len, cerror *e); +int db_puts(dynbuf *b, const char *s, cerror *e); +int db_printf(dynbuf *b, cerror *e, const char *fmt, ...); + +/* ------------------------------------------------------------------- memoria */ + +void *xmalloc(size_t n, cerror *e); +void *xrealloc(void *p, size_t n, cerror *e); +char *xstrdup(const char *s, cerror *e); +char *xstrndup(const char *s, size_t n, cerror *e); + +/* --------------------------------------------------------------------- UTF-8 */ + +/* Numero di code point (una sequenza non valida conta 1). */ +size_t utf8_count(const char *s); +/* Byte necessari per rappresentare i primi `max_chars` code point. */ +size_t utf8_prefix_bytes(const char *s, size_t max_chars); + +/* --------------------------------------------------------------------- path */ + +/* out = a + "/" + b (o solo a se b e' vuoto). Ritorna -1 se non ci sta. */ +int path_join(char *out, size_t outsz, const char *a, const char *b); +/* Normalizza lessicalmente ("//", "/./", "/../") senza toccare il filesystem. + * Ritorna -1 se il risultato esce dalla radice indicata (attempt di traversal). */ +int path_normalize_inside(const char *base, const char *rel, char *out, size_t outsz); +const char *path_basename(const char *p); + +int is_dir(const char *p); /* segue i symlink (come Path.is_dir()) */ +int is_dir_nofollow(const char *p); /* non segue (come Path.is_dir() su lstat) */ +int is_regular(const char *p); +int path_exists(const char *p); +int path_is_symlink(const char *p); + +/* --------------------------------------------------------------- file interi */ + +/* Legge un file intero in memoria (usato per JSON piccoli e bottle.yml). */ +int file_read_all(const char *path, char **out, size_t *out_len, cerror *e); +int file_write_all(const char *path, const void *data, size_t len, cerror *e); + +/* ------------------------------------------------------------- formattazione */ + +/* printf con formato Python-like: ritorna la stringa allocata. */ +char *aprintf(cerror *e, const char *fmt, ...); + +#endif /* CELLAR_COMMON_H */ diff --git a/src/config.c b/src/config.c new file mode 100644 index 0000000..b789639 --- /dev/null +++ b/src/config.c @@ -0,0 +1,139 @@ +/* config.c */ +#include "config.h" + +#include +#include +#include +#include +#include + +#define DEFAULT_SERVER "http://127.0.0.1:8080" +#define BOTTLES_SUFFIX "/.var/app/com.usebottles.bottles/data/bottles/bottles" + +int config_home(char *out, size_t outsz, cerror *e) +{ + const char *h = getenv("HOME"); + if (h && *h) { + if (snprintf(out, outsz, "%s", h) >= (int)outsz) { + err_set(e, ERR_MISC, 0, "HOME too long"); + return -1; + } + return 0; + } + struct passwd *pw = getpwuid(getuid()); + if (!pw || !pw->pw_dir || !*pw->pw_dir) { + err_set(e, ERR_MISC, 0, "cannot determine home directory"); + return -1; + } + if (snprintf(out, outsz, "%s", pw->pw_dir) >= (int)outsz) { + err_set(e, ERR_MISC, 0, "home directory too long"); + return -1; + } + return 0; +} + +int config_path(char *out, size_t outsz, cerror *e) +{ + char home[4096]; + if (config_home(home, sizeof(home), e) != 0) + return -1; + if (snprintf(out, outsz, "%s/.cellar.conf", home) >= (int)outsz) { + err_set(e, ERR_MISC, 0, "config path too long"); + return -1; + } + return 0; +} + +static void trim(char *s) +{ + size_t len = strlen(s); + while (len > 0 && (s[len - 1] == ' ' || s[len - 1] == '\t' || s[len - 1] == '\r' || + s[len - 1] == '\n')) + s[--len] = '\0'; + size_t start = 0; + while (s[start] == ' ' || s[start] == '\t') + start++; + if (start) + memmove(s, s + start, strlen(s + start) + 1); +} + +static void lower(char *s) +{ + for (; *s; s++) + *s = (char)tolower((unsigned char)*s); +} + +int config_load(cellar_conf *c, int *created, cerror *e) +{ + char home[4096]; + char path[4200]; + if (config_home(home, sizeof(home), e) != 0) + return -1; + if (config_path(path, sizeof(path), e) != 0) + return -1; + + snprintf(c->server, sizeof(c->server), "%s", DEFAULT_SERVER); + snprintf(c->bottles_dir, sizeof(c->bottles_dir), "%s%s", home, BOTTLES_SUFFIX); + *created = 0; + + FILE *fp = fopen(path, "r"); + if (!fp) { + /* crea con i default, formato identico a configparser.write() */ + dynbuf b; + db_init(&b); + if (db_printf(&b, e, "[cellar]\nserver = %s\nbottles_dir = %s\n\n", c->server, c->bottles_dir) != 0) { + db_free(&b); + return -1; + } + int rc = file_write_all(path, b.data, b.len, e); + db_free(&b); + if (rc != 0) + return -1; + fprintf(stderr, "Created default config: %s\n", path); + *created = 1; + return 0; + } + + char line[8192]; + int in_section = 0; + while (fgets(line, sizeof(line), fp)) { + char *p = line; + trim(p); + if (*p == '\0' || *p == '#' || *p == ';') + continue; + if (*p == '[') { + char *close = strchr(p, ']'); + if (!close) + continue; + *close = '\0'; + char name[256]; + snprintf(name, sizeof(name), "%s", p + 1); + trim(name); + lower(name); + in_section = (strcmp(name, "cellar") == 0); + continue; + } + if (!in_section) + continue; + char *sep = strchr(p, '='); + char *colon = strchr(p, ':'); + if (!sep || (colon && colon < sep)) + sep = colon; + if (!sep) + continue; + *sep = '\0'; + char key[256]; + snprintf(key, sizeof(key), "%s", p); + trim(key); + lower(key); + char value[8192]; + snprintf(value, sizeof(value), "%s", sep + 1); + trim(value); + if (!strcmp(key, "server") && *value) + snprintf(c->server, sizeof(c->server), "%s", value); + else if (!strcmp(key, "bottles_dir") && *value) + snprintf(c->bottles_dir, sizeof(c->bottles_dir), "%s", value); + } + fclose(fp); + return 0; +} diff --git a/src/config.h b/src/config.h new file mode 100644 index 0000000..b1a87f5 --- /dev/null +++ b/src/config.h @@ -0,0 +1,22 @@ +/* config.h — lettura/scrittura di ~/.cellar.conf (equivalente di configparser + * + load_config() di cellar-cli.py). */ +#ifndef CELLAR_CONFIG_H +#define CELLAR_CONFIG_H + +#include "common.h" + +typedef struct { + char server[1024]; + char bottles_dir[4096]; +} cellar_conf; + +/* Legge la configurazione; se il file non esiste lo crea con i default e + * segnala created=1 (il chiamante stampa l'avviso, come fa il client Python). */ +int config_load(cellar_conf *c, int *created, cerror *e); + +/* Home dell'utente (HOME o getpwuid). */ +int config_home(char *out, size_t outsz, cerror *e); +/* Percorso di ~/.cellar.conf */ +int config_path(char *out, size_t outsz, cerror *e); + +#endif /* CELLAR_CONFIG_H */ diff --git a/src/fsutil.c b/src/fsutil.c new file mode 100644 index 0000000..b6bb27b --- /dev/null +++ b/src/fsutil.c @@ -0,0 +1,349 @@ +/* fsutil.c */ +#include "fsutil.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifndef PATH_MAX +#define PATH_MAX 4096 +#endif + +void strlist_init(strlist *l) +{ + l->names = NULL; + l->n = 0; +} + +void strlist_free(strlist *l) +{ + for (size_t i = 0; i < l->n; i++) + free(l->names[i]); + free(l->names); + strlist_init(l); +} + +static int cmp_str(const void *a, const void *b) +{ + const char *const *x = a; + const char *const *y = b; + return strcmp(*x, *y); +} + +void strlist_sort(strlist *l) +{ + if (l->n > 1) + qsort(l->names, l->n, sizeof(*l->names), cmp_str); +} + +void strlist_add(strlist *l, const char *s) +{ + char **nn = realloc(l->names, (l->n + 1) * sizeof(*nn)); + if (!nn) { + fprintf(stderr, "cellar-cli: error: out of memory\n"); + exit(1); + } + l->names = nn; + l->names[l->n] = strdup(s); + if (!l->names[l->n]) { + fprintf(stderr, "cellar-cli: error: out of memory\n"); + exit(1); + } + l->n++; +} + +int dir_list(const char *dir, int dirs_only, strlist *out, cerror *e) +{ + DIR *d = opendir(dir); + if (!d) { + err_set_errno(e, ERR_FILE, "cannot list %s", dir); + return -1; + } + struct dirent *de; + errno = 0; + while ((de = readdir(d)) != NULL) { + if (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..")) + continue; + if (dirs_only) { + char full[PATH_MAX]; + if (snprintf(full, sizeof(full), "%s/%s", dir, de->d_name) >= (int)sizeof(full)) + continue; + if (!is_dir(full)) + continue; + } + char **nn = xrealloc(out->names, (out->n + 1) * sizeof(*nn), e); + if (!nn) { + closedir(d); + return -1; + } + out->names = nn; + out->names[out->n] = xstrdup(de->d_name, e); + if (!out->names[out->n]) { + closedir(d); + return -1; + } + out->n++; + } + if (errno != 0) { + err_set_errno(e, ERR_FILE, "cannot list %s", dir); + closedir(d); + return -1; + } + closedir(d); + strlist_sort(out); + return 0; +} + +int mkdir_p(const char *path, cerror *e) +{ + if (is_dir(path)) + return 0; + char tmp[PATH_MAX]; + if (snprintf(tmp, sizeof(tmp), "%s", path) >= (int)sizeof(tmp)) { + err_set(e, ERR_FILE, 0, "path too long: %s", path); + return -1; + } + size_t len = strlen(tmp); + while (len > 1 && tmp[len - 1] == '/') + tmp[--len] = '\0'; + for (size_t i = 1; i <= len; i++) { + if (tmp[i] == '/' || tmp[i] == '\0') { + char save = tmp[i]; + tmp[i] = '\0'; + if (mkdir(tmp, 0777) != 0 && errno != EEXIST) { + err_set_errno(e, ERR_FILE, "cannot create directory %s", tmp); + return -1; + } + tmp[i] = save; + } + } + if (!is_dir(path)) { + err_set(e, ERR_FILE, 0, "cannot create directory %s", path); + return -1; + } + return 0; +} + +int rm_rf(const char *path, cerror *e) +{ + struct stat st; + if (lstat(path, &st) != 0) { + if (errno == ENOENT) + return 0; + err_set_errno(e, ERR_FILE, "cannot stat %s", path); + return -1; + } + if (S_ISDIR(st.st_mode)) { + strlist l; + strlist_init(&l); + if (dir_list(path, 0, &l, e) != 0) { + strlist_free(&l); + return -1; + } + int ret = 0; + for (size_t i = 0; i < l.n && ret == 0; i++) { + char child[PATH_MAX]; + if (snprintf(child, sizeof(child), "%s/%s", path, l.names[i]) >= (int)sizeof(child)) { + err_set(e, ERR_FILE, 0, "path too long"); + ret = -1; + break; + } + ret = rm_rf(child, e); + } + strlist_free(&l); + if (ret != 0) + return -1; + if (rmdir(path) != 0) { + err_set_errno(e, ERR_FILE, "cannot remove directory %s", path); + return -1; + } + return 0; + } + if (unlink(path) != 0) { + err_set_errno(e, ERR_FILE, "cannot remove %s", path); + return -1; + } + return 0; +} + +static int copy_regular(const char *src, const char *dst, const struct stat *st, cerror *e) +{ + int in = open(src, O_RDONLY); + if (in < 0) { + err_set_errno(e, ERR_FILE, "cannot read %s", src); + return -1; + } + int out = open(dst, O_WRONLY | O_CREAT | O_TRUNC, st->st_mode & 07777); + if (out < 0) { + err_set_errno(e, ERR_FILE, "cannot write %s", dst); + close(in); + return -1; + } + char buf[65536]; + int ret = 0; + for (;;) { + ssize_t n = read(in, buf, sizeof(buf)); + if (n < 0) { + if (errno == EINTR) + continue; + err_set_errno(e, ERR_FILE, "read failed on %s", src); + ret = -1; + break; + } + if (n == 0) + break; + ssize_t off = 0; + while (off < n) { + ssize_t w = write(out, buf + off, (size_t)(n - off)); + if (w < 0) { + if (errno == EINTR) + continue; + err_set_errno(e, ERR_FILE, "write failed on %s", dst); + ret = -1; + break; + } + off += w; + } + if (ret != 0) + break; + } + close(in); + if (close(out) != 0 && ret == 0) { + err_set_errno(e, ERR_FILE, "close failed on %s", dst); + ret = -1; + } + if (ret == 0) { + struct timespec times[2]; + times[0] = st->st_atim; + times[1] = st->st_mtim; + (void)utimensat(AT_FDCWD, dst, times, 0); + (void)chmod(dst, st->st_mode & 07777); + } + return ret; +} + +int copy_tree(const char *src, const char *dst, cerror *e) +{ + struct stat st; + if (lstat(src, &st) != 0) { + err_set_errno(e, ERR_FILE, "cannot stat %s", src); + return -1; + } + if (S_ISLNK(st.st_mode)) { + char *target = read_symlink(src, e); + if (!target) + return -1; + if (symlink(target, dst) != 0) { + err_set_errno(e, ERR_FILE, "cannot create symlink %s", dst); + free(target); + return -1; + } + free(target); + return 0; + } + if (S_ISDIR(st.st_mode)) { + if (mkdir(dst, st.st_mode & 07777) != 0 && errno != EEXIST) { + err_set_errno(e, ERR_FILE, "cannot create directory %s", dst); + return -1; + } + strlist l; + strlist_init(&l); + if (dir_list(src, 0, &l, e) != 0) { + strlist_free(&l); + return -1; + } + int ret = 0; + for (size_t i = 0; i < l.n && ret == 0; i++) { + char s[PATH_MAX], d[PATH_MAX]; + if (snprintf(s, sizeof(s), "%s/%s", src, l.names[i]) >= (int)sizeof(s) || + snprintf(d, sizeof(d), "%s/%s", dst, l.names[i]) >= (int)sizeof(d)) { + err_set(e, ERR_FILE, 0, "path too long"); + ret = -1; + break; + } + ret = copy_tree(s, d, e); + } + strlist_free(&l); + if (ret != 0) + return -1; + struct timespec times[2]; + times[0] = st.st_atim; + times[1] = st.st_mtim; + (void)utimensat(AT_FDCWD, dst, times, 0); + (void)chmod(dst, st.st_mode & 07777); + return 0; + } + if (S_ISREG(st.st_mode)) + return copy_regular(src, dst, &st, e); + + /* FIFO/device: non attesi in un backup Bottles; segnalati e ignorati. */ + fprintf(stderr, "Warning: skipping special file %s\n", src); + return 0; +} + +int move_path(const char *src, const char *dst, cerror *e) +{ + if (rename(src, dst) == 0) + return 0; + if (errno != EXDEV) { + err_set_errno(e, ERR_FILE, "cannot move %s to %s", src, dst); + return -1; + } + if (copy_tree(src, dst, e) != 0) + return -1; + return rm_rf(src, e); +} + +int make_temp_dir(const char *prefix, char *out, size_t outsz, cerror *e) +{ + const char *tmp = getenv("TMPDIR"); + if (!tmp || !*tmp) + tmp = "/tmp"; + char tmpl[PATH_MAX]; + if (snprintf(tmpl, sizeof(tmpl), "%s/%sXXXXXX", tmp, prefix) >= (int)sizeof(tmpl)) { + err_set(e, ERR_FILE, 0, "TMPDIR too long"); + return -1; + } + if (!mkdtemp(tmpl)) { + err_set_errno(e, ERR_FILE, "cannot create temporary directory"); + return -1; + } + if (snprintf(out, outsz, "%s", tmpl) >= (int)outsz) { + err_set(e, ERR_FILE, 0, "temporary path too long"); + return -1; + } + return 0; +} + +char *read_symlink(const char *path, cerror *e) +{ + size_t cap = 256; + for (;;) { + char *buf = xmalloc(cap, e); + if (!buf) + return NULL; + ssize_t n = readlink(path, buf, cap); + if (n < 0) { + err_set_errno(e, ERR_FILE, "cannot read symlink %s", path); + free(buf); + return NULL; + } + if ((size_t)n < cap) { + buf[n] = '\0'; + return buf; + } + free(buf); + if (cap > (1u << 20)) { + err_set(e, ERR_FILE, 0, "symlink target too long: %s", path); + return NULL; + } + cap *= 2; + } +} diff --git a/src/fsutil.h b/src/fsutil.h new file mode 100644 index 0000000..0ac2a18 --- /dev/null +++ b/src/fsutil.h @@ -0,0 +1,42 @@ +/* fsutil.h — operazioni su filesystem usate dal flusso di installazione. + * + * Sostituiscono shutil.move / shutil.rmtree / shutil.copytree / tempfile. + * Gestiscono esplicitamente il caso EXDEV (/tmp su tmpfs != ~/.var/app): sul + * campo e' la norma, non l'eccezione. + */ +#ifndef CELLAR_FSUTIL_H +#define CELLAR_FSUTIL_H + +#include "common.h" + +#include + +typedef struct { + char **names; + size_t n; +} strlist; + +void strlist_init(strlist *l); +void strlist_free(strlist *l); +void strlist_sort(strlist *l); /* qsort con strcmp (come sorted() di Python su PosixPath) */ +/* Aggiunge una copia della stringa (esce con errore in caso di OOM). */ +void strlist_add(strlist *l, const char *s); + +/* Elenca i nomi in `dir` (senza "." e ".."). dirs_only=1 tiene solo le + * directory, seguendo i symlink come fa pathlib.Path.is_dir(). */ +int dir_list(const char *dir, int dirs_only, strlist *out, cerror *e); + +int mkdir_p(const char *path, cerror *e); +int rm_rf(const char *path, cerror *e); +int copy_tree(const char *src, const char *dst, cerror *e); +/* rename() se possibile, altrimenti copia ricorsiva + rimozione (come shutil.move). */ +int move_path(const char *src, const char *dst, cerror *e); + +/* Crea una directory temporanea con il prefisso indicato (mkdtemp). + * Es: make_temp_dir("bottle-install-", ...) -> /tmp/bottle-install-a1B2c3 */ +int make_temp_dir(const char *prefix, char *out, size_t outsz, cerror *e); + +/* Legge il target di un symlink (allocato). */ +char *read_symlink(const char *path, cerror *e); + +#endif /* CELLAR_FSUTIL_H */ diff --git a/src/gzip.c b/src/gzip.c new file mode 100644 index 0000000..38832c6 --- /dev/null +++ b/src/gzip.c @@ -0,0 +1,330 @@ +/* gzip.c — flussi gzip (RFC1952) con deflate/inflate raw di miniz. + * + * Nota importante: mz_deflateInit2/mz_inflateInit2 di miniz accettano solo + * deflate "raw" (-15) o zlib (15), NON il contenitore gzip (31/47). Quindi + * header e trailer gzip (CRC32 + ISIZE) sono gestiti qui: + * scrittura: header 10 byte, deflate raw, CRC32(LE), ISIZE(LE) + * lettura: parse dell'header (con FEXTRA/FNAME/FCOMMENT/FHCRC), inflate raw, + * verifica del trailer + */ +#include "gzip.h" + +#include "../third_party/miniz.h" + +#include +#include +#include + +#define GZ_BUFSZ 65536 + +struct gz_writer { + mz_stream zs; + FILE *fp; + char out[GZ_BUFSZ]; + unsigned long crc; + unsigned long long total_in; + int header_written; +}; + +struct gz_reader { + mz_stream zs; + FILE *fp; + char in[GZ_BUFSZ]; + int stream_end; + unsigned long crc; + unsigned long long total_out; + unsigned long long expected_crc; + unsigned long long expected_size; + int have_trailer; +}; + +static int write_bytes(gz_writer *w, const void *buf, size_t len, cerror *e) +{ + if (len && fwrite(buf, 1, len, w->fp) != len) { + err_set_errno(e, ERR_FILE, "write failed"); + return -1; + } + return 0; +} + +static int gzw_write_header(gz_writer *w, cerror *e) +{ + if (w->header_written) + return 0; + unsigned char hdr[10]; + hdr[0] = 0x1f; + hdr[1] = 0x8b; + hdr[2] = 0x08; /* deflate */ + hdr[3] = 0x00; /* flags */ + /* mtime: come gzip.GzipFile di Python (ora corrente) */ + unsigned long now = (unsigned long)time(NULL); + hdr[4] = (unsigned char)(now & 0xFF); + hdr[5] = (unsigned char)((now >> 8) & 0xFF); + hdr[6] = (unsigned char)((now >> 16) & 0xFF); + hdr[7] = (unsigned char)((now >> 24) & 0xFF); + hdr[8] = 0x02; /* XFL: massima compressione */ + hdr[9] = 0xFF; /* OS: unknown (come zlib) */ + if (write_bytes(w, hdr, sizeof(hdr), e) != 0) + return -1; + w->header_written = 1; + return 0; +} + +gz_writer *gzw_open(const char *path, cerror *e) +{ + gz_writer *w = xmalloc(sizeof(*w), e); + if (!w) + return NULL; + memset(w, 0, sizeof(*w)); + w->fp = fopen(path, "wb"); + if (!w->fp) { + err_set_errno(e, ERR_FILE, "cannot write %s", path); + free(w); + return NULL; + } + /* -15 = deflate raw (il contenitore gzip lo aggiungiamo noi) */ + int rc = mz_deflateInit2(&w->zs, MZ_BEST_COMPRESSION, MZ_DEFLATED, -15, 9, MZ_DEFAULT_STRATEGY); + if (rc != MZ_OK) { + err_set(e, ERR_MISC, 0, "deflate init failed (%d)", rc); + fclose(w->fp); + free(w); + return NULL; + } + w->crc = MZ_CRC32_INIT; + return w; +} + +int gzw_write(gz_writer *w, const void *buf, size_t len, cerror *e) +{ + if (len == 0) + return 0; + if (gzw_write_header(w, e) != 0) + return -1; + w->crc = mz_crc32(w->crc, (const unsigned char *)buf, len); + w->total_in += len; + + w->zs.next_in = (unsigned char *)(uintptr_t)buf; + w->zs.avail_in = (unsigned int)len; + while (w->zs.avail_in > 0) { + w->zs.next_out = (unsigned char *)w->out; + w->zs.avail_out = sizeof(w->out); + int rc = mz_deflate(&w->zs, MZ_NO_FLUSH); + if (rc != MZ_OK && rc != MZ_BUF_ERROR) { + err_set(e, ERR_FILE, 0, "deflate failed (%d)", rc); + return -1; + } + size_t produced = sizeof(w->out) - w->zs.avail_out; + if (produced && write_bytes(w, w->out, produced, e) != 0) + return -1; + if (produced == 0 && w->zs.avail_in > 0) + break; + } + return 0; +} + +int gzw_close(gz_writer *w, cerror *e) +{ + int ret = 0; + if (gzw_write_header(w, e) != 0) + ret = -1; + + while (ret == 0) { + w->zs.next_out = (unsigned char *)w->out; + w->zs.avail_out = sizeof(w->out); + int rc = mz_deflate(&w->zs, MZ_FINISH); + size_t produced = sizeof(w->out) - w->zs.avail_out; + if (produced && write_bytes(w, w->out, produced, e) != 0) { + ret = -1; + break; + } + if (rc == MZ_STREAM_END) + break; + if (rc != MZ_OK && rc != MZ_BUF_ERROR) { + err_set(e, ERR_FILE, 0, "deflate finish failed (%d)", rc); + ret = -1; + break; + } + if (produced == 0) { + err_set(e, ERR_FILE, 0, "deflate finish stalled"); + ret = -1; + break; + } + } + if (ret == 0) { + unsigned char trailer[8]; + unsigned long crc = mz_crc32(w->crc, NULL, 0); + unsigned long long isize = w->total_in & 0xFFFFFFFFULL; + trailer[0] = (unsigned char)(crc & 0xFF); + trailer[1] = (unsigned char)((crc >> 8) & 0xFF); + trailer[2] = (unsigned char)((crc >> 16) & 0xFF); + trailer[3] = (unsigned char)((crc >> 24) & 0xFF); + trailer[4] = (unsigned char)(isize & 0xFF); + trailer[5] = (unsigned char)((isize >> 8) & 0xFF); + trailer[6] = (unsigned char)((isize >> 16) & 0xFF); + trailer[7] = (unsigned char)((isize >> 24) & 0xFF); + if (write_bytes(w, trailer, sizeof(trailer), e) != 0) + ret = -1; + } + mz_deflateEnd(&w->zs); + if (w->fp && fclose(w->fp) != 0 && ret == 0) { + err_set_errno(e, ERR_FILE, "close failed"); + ret = -1; + } + free(w); + return ret; +} + +/* ------------------------------------------------------------------ lettura */ + +static int read_gzip_header(gz_reader *r, cerror *e) +{ + unsigned char hdr[10]; + if (fread(hdr, 1, sizeof(hdr), r->fp) != sizeof(hdr)) { + err_set(e, ERR_FILE, 0, "not a gzip stream (truncated header)"); + return -1; + } + if (hdr[0] != 0x1f || hdr[1] != 0x8b) { + err_set(e, ERR_FILE, 0, "not a gzip stream (bad magic)"); + return -1; + } + if (hdr[2] != 0x08) { + err_set(e, ERR_FILE, 0, "unsupported gzip compression method (%u)", hdr[2]); + return -1; + } + unsigned char flg = hdr[3]; + if (flg & 0x04) { /* FEXTRA */ + unsigned char xl[2]; + if (fread(xl, 1, 2, r->fp) != 2) { + err_set(e, ERR_FILE, 0, "truncated gzip extra field"); + return -1; + } + unsigned xlen = (unsigned)xl[0] | ((unsigned)xl[1] << 8); + for (unsigned i = 0; i < xlen; i++) { + if (fgetc(r->fp) == EOF) { + err_set(e, ERR_FILE, 0, "truncated gzip extra field"); + return -1; + } + } + } + /* FNAME / FCOMMENT: stringhe NUL-terminate */ + for (int field = 0; field < 2; field++) { + int flag = field == 0 ? 0x08 : 0x10; + if (!(flg & flag)) + continue; + int c; + do { + c = fgetc(r->fp); + if (c == EOF) { + err_set(e, ERR_FILE, 0, "truncated gzip header"); + return -1; + } + } while (c != 0); + } + if (flg & 0x02) { /* FHCRC */ + unsigned char hc[2]; + if (fread(hc, 1, 2, r->fp) != 2) { + err_set(e, ERR_FILE, 0, "truncated gzip header CRC"); + return -1; + } + } + return 0; +} + +gz_reader *gzr_open(const char *path, cerror *e) +{ + gz_reader *r = xmalloc(sizeof(*r), e); + if (!r) + return NULL; + memset(r, 0, sizeof(*r)); + r->fp = fopen(path, "rb"); + if (!r->fp) { + err_set_errno(e, ERR_FILE, "cannot read %s", path); + free(r); + return NULL; + } + if (read_gzip_header(r, e) != 0) { + fclose(r->fp); + free(r); + return NULL; + } + int rc = mz_inflateInit2(&r->zs, -15); /* deflate raw */ + if (rc != MZ_OK) { + err_set(e, ERR_MISC, 0, "inflate init failed (%d)", rc); + fclose(r->fp); + free(r); + return NULL; + } + r->crc = MZ_CRC32_INIT; + return r; +} + +static void read_trailer(gz_reader *r) +{ + unsigned char t[8]; + if (fread(t, 1, sizeof(t), r->fp) != sizeof(t)) + return; + r->expected_crc = (unsigned long long)t[0] | ((unsigned long long)t[1] << 8) | + ((unsigned long long)t[2] << 16) | ((unsigned long long)t[3] << 24); + r->expected_size = (unsigned long long)t[4] | ((unsigned long long)t[5] << 8) | + ((unsigned long long)t[6] << 16) | ((unsigned long long)t[7] << 24); + r->have_trailer = 1; +} + +long gzr_read(gz_reader *r, void *buf, size_t cap, cerror *e) +{ + if (r->stream_end) + return 0; + r->zs.next_out = (unsigned char *)buf; + r->zs.avail_out = (unsigned int)cap; + while (r->zs.avail_out > 0) { + if (r->zs.avail_in == 0) { + size_t n = fread(r->in, 1, sizeof(r->in), r->fp); + if (n == 0) { + if (ferror(r->fp)) { + err_set_errno(e, ERR_FILE, "read failed"); + return -1; + } + break; /* EOF inatteso: lo segnala il chiamante */ + } + r->zs.next_in = (unsigned char *)r->in; + r->zs.avail_in = (unsigned int)n; + } + int rc = mz_inflate(&r->zs, MZ_NO_FLUSH); + if (rc == MZ_STREAM_END) { + r->stream_end = 1; + read_trailer(r); + break; + } + if (rc != MZ_OK && rc != MZ_BUF_ERROR) { + err_set(e, ERR_FILE, 0, "inflate failed (%d)", rc); + return -1; + } + if (rc == MZ_BUF_ERROR && r->zs.avail_in == 0) + continue; + } + size_t produced = cap - r->zs.avail_out; + if (produced) { + r->crc = mz_crc32(r->crc, (const unsigned char *)buf, produced); + r->total_out += produced; + } + return (long)produced; +} + +void gzr_close(gz_reader *r) +{ + if (!r) + return; + /* verifica del trailer: un mismatch indica un archivio corrotto */ + if (r->have_trailer) { + unsigned long crc = mz_crc32(r->crc, NULL, 0); + if ((unsigned long long)crc != r->expected_crc) + fprintf(stderr, "Warning: gzip CRC mismatch (expected %08llx, got %08lx)\n", r->expected_crc, crc); + else if ((r->total_out & 0xFFFFFFFFULL) != r->expected_size) + fprintf(stderr, "Warning: gzip size mismatch (expected %llu, got %llu)\n", r->expected_size, + r->total_out); + } + mz_inflateEnd(&r->zs); + if (r->fp) + fclose(r->fp); + free(r); +} diff --git a/src/gzip.h b/src/gzip.h new file mode 100644 index 0000000..fadd0d0 --- /dev/null +++ b/src/gzip.h @@ -0,0 +1,24 @@ +/* gzip.h — stream gzip in lettura/scrittura via miniz (nessuna dipendenza). */ +#ifndef CELLAR_GZIP_H +#define CELLAR_GZIP_H + +#include "common.h" + +#include + +typedef struct gz_writer gz_writer; +typedef struct gz_reader gz_reader; + +/* Apre in scrittura: produce un flusso gzip (RFC1952), livello 9 come fa + * tarfile.open(mode="w:gz") di Python. */ +gz_writer *gzw_open(const char *path, cerror *e); +int gzw_write(gz_writer *w, const void *buf, size_t len, cerror *e); +int gzw_close(gz_writer *w, cerror *e); + +/* Apre in lettura: rileva automaticamente gzip o zlib. */ +gz_reader *gzr_open(const char *path, cerror *e); +/* Ritorna il numero di byte letti, 0 a EOF, -1 su errore. */ +long gzr_read(gz_reader *r, void *buf, size_t cap, cerror *e); +void gzr_close(gz_reader *r); + +#endif /* CELLAR_GZIP_H */ diff --git a/src/http.c b/src/http.c new file mode 100644 index 0000000..de6bf9e --- /dev/null +++ b/src/http.c @@ -0,0 +1,1103 @@ +/* http.c — HTTP/1.1 su socket: URL, connect con timeout, header, corpo + * (Content-Length / chunked / fino a EOF), redirect come urllib, resolver di + * riserva (hosts + DNS diretto) per la glibc statica senza NSS. */ +#include "http.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define HTTP_MAX_HEADER 65536 +#define HTTP_MAX_BODY_MEM (256u * 1024u * 1024u) +#define HTTP_CONNECT_TIMEOUT 15 +#define HTTP_IO_TIMEOUT 300 +#define HTTP_MAX_REDIRECTS 5 +#define HTTP_READ_CHUNK 65536 + +struct chttp { + int fd; + char *buf; + size_t cap, len, pos; + long long scanned; + int eof; + int chunked; + long long remaining; /* residuo Content-Length (-1 = fino a EOF) */ + int done; +}; + +/* ------------------------------------------------------------------ URL */ + +int csurl_parse(const char *url, csurl *u, cerror *e) +{ + memset(u, 0, sizeof(*u)); + const char *sep = strstr(url, "://"); + if (!sep) { + err_set(e, ERR_NET, 0, "URL senza schema: %s", url); + return -1; + } + size_t sl = (size_t)(sep - url); + if (sl == 0 || sl >= sizeof(u->scheme)) { + err_set(e, ERR_NET, 0, "schema non valido in %s", url); + return -1; + } + memcpy(u->scheme, url, sl); + u->scheme[sl] = '\0'; + for (size_t i = 0; i < sl; i++) + u->scheme[i] = (char)tolower((unsigned char)u->scheme[i]); + u->is_https = (strcmp(u->scheme, "https") == 0); + if (strcmp(u->scheme, "http") != 0 && !u->is_https) { + err_set(e, ERR_NET, 0, "schema non supportato: %s", u->scheme); + return -1; + } + + const char *p = sep + 3; + const char *slash = strchr(p, '/'); + const char *hostend = slash ? slash : p + strlen(p); + const char *at = NULL; + for (const char *q = p; q < hostend; q++) { + if (*q == '@') + at = q; + } + if (at) + p = at + 1; + + const char *colon = NULL; + if (p < hostend && *p == '[') { + const char *close = memchr(p, ']', (size_t)(hostend - p)); + if (!close) { + err_set(e, ERR_NET, 0, "IPv6 letterale non chiuso in %s", url); + return -1; + } + size_t hl = (size_t)(close - p - 1); + if (hl == 0 || hl >= sizeof(u->host)) { + err_set(e, ERR_NET, 0, "host non valido in %s", url); + return -1; + } + memcpy(u->host, p + 1, hl); + u->host[hl] = '\0'; + if (close + 1 < hostend && close[1] == ':') + colon = close + 1; + } else { + colon = memchr(p, ':', (size_t)(hostend - p)); + size_t hl = colon ? (size_t)(colon - p) : (size_t)(hostend - p); + if (hl == 0 || hl >= sizeof(u->host)) { + err_set(e, ERR_NET, 0, "host non valido in %s", url); + return -1; + } + memcpy(u->host, p, hl); + u->host[hl] = '\0'; + } + + u->port = u->is_https ? 443 : 80; + if (colon) { + long v = strtol(colon + 1, NULL, 10); + if (v <= 0 || v > 65535) { + err_set(e, ERR_NET, 0, "porta non valida in %s", url); + return -1; + } + u->port = (int)v; + } + if (slash && *slash) { + if (snprintf(u->path, sizeof(u->path), "%s", slash) >= (int)sizeof(u->path)) { + err_set(e, ERR_NET, 0, "path troppo lungo in %s", url); + return -1; + } + } else { + snprintf(u->path, sizeof(u->path), "/"); + } + return 0; +} + +static void url_hostpart(const csurl *u, char *out, size_t outsz) +{ + int defport = (u->port == (u->is_https ? 443 : 80)); + if (strchr(u->host, ':')) { + if (defport) + snprintf(out, outsz, "[%s]", u->host); + else + snprintf(out, outsz, "[%s]:%d", u->host, u->port); + } else if (defport) { + snprintf(out, outsz, "%s", u->host); + } else { + snprintf(out, outsz, "%s:%d", u->host, u->port); + } +} + +static int url_join(const csurl *base, const char *loc, char *out, size_t outsz, cerror *e) +{ + const char *p = loc; + while (*p == ' ' || *p == '\t') + p++; + if (!strncasecmp(p, "http://", 7) || !strncasecmp(p, "https://", 8)) { + if (snprintf(out, outsz, "%s", p) >= (int)outsz) + goto too_long; + return 0; + } + if (!strncmp(p, "//", 2)) { + if (snprintf(out, outsz, "%s:%s", base->scheme, p) >= (int)outsz) + goto too_long; + return 0; + } + char hostpart[600]; + url_hostpart(base, hostpart, sizeof(hostpart)); + char path[4096]; + if (p[0] == '/') { + snprintf(path, sizeof(path), "%s", p); + } else { + const char *lastslash = strrchr(base->path, '/'); + size_t keep = lastslash ? (size_t)(lastslash - base->path + 1) : 1; + if (keep >= sizeof(path)) + keep = 1; + memcpy(path, base->path, keep); + snprintf(path + keep, sizeof(path) - keep, "%s", p); + } + if (snprintf(out, outsz, "%s://%s%s", base->scheme, hostpart, path) >= (int)outsz) + goto too_long; + return 0; +too_long: + err_set(e, ERR_NET, 0, "URL di redirect troppo lungo"); + return -1; +} + +/* ------------------------------------------------------- risoluzione indirizzi */ + +typedef struct { + int family; + struct sockaddr_storage ss; + socklen_t len; +} csaddr; + +static void add_addr(csaddr *list, size_t max, size_t *n, int family, const void *data, int port) +{ + if (*n >= max) + return; + csaddr *a = &list[(*n)++]; + memset(a, 0, sizeof(*a)); + a->family = family; + if (family == AF_INET) { + struct sockaddr_in *s = (struct sockaddr_in *)&a->ss; + s->sin_family = AF_INET; + s->sin_port = htons((uint16_t)port); + memcpy(&s->sin_addr, data, 4); + a->len = sizeof(*s); + } else { + struct sockaddr_in6 *s = (struct sockaddr_in6 *)&a->ss; + s->sin6_family = AF_INET6; + s->sin6_port = htons((uint16_t)port); + memcpy(&s->sin6_addr, data, 16); + a->len = sizeof(*s); + } +} + +static int hosts_lookup(const char *host, int port, csaddr *list, size_t max, size_t *n) +{ + FILE *fp = fopen("/etc/hosts", "r"); + if (!fp) + return 0; + char line[1024]; + while (fgets(line, sizeof(line), fp)) { + char *hash = strchr(line, '#'); + if (hash) + *hash = '\0'; + char *save = NULL; + char *tok = strtok_r(line, " \t\r\n", &save); + if (!tok) + continue; + unsigned char raw[16]; + int family = 0; + struct in_addr a4; + struct in6_addr a6; + if (inet_pton(AF_INET, tok, &a4) == 1) { + memcpy(raw, &a4, 4); + family = AF_INET; + /* salta eventuali ":alias" */ + char *c = strchr(tok, ':'); + if (c && strchr(tok, '.') == NULL) + continue; + } else { + char tmp[256]; + snprintf(tmp, sizeof(tmp), "%s", tok); + char *pct = strchr(tmp, '%'); + if (pct) + *pct = '\0'; + if (inet_pton(AF_INET6, tmp, &a6) == 1) { + memcpy(raw, &a6, 16); + family = AF_INET6; + } else { + continue; + } + } + while ((tok = strtok_r(NULL, " \t\r\n", &save)) != NULL) { + if (strcasecmp(tok, host) == 0) { + fclose(fp); + add_addr(list, max, n, family, raw, port); + return 1; + } + } + } + fclose(fp); + return 0; +} + +static int dns_query_server(const char *server, const char *host, int qtype, int port, csaddr *list, size_t max, + size_t *n) +{ + unsigned char q[512]; + memset(q, 0, sizeof(q)); + q[0] = 0x12; + q[1] = 0x34; + q[2] = 0x01; + q[5] = 0x01; + size_t qn = 12; + const char *p = host; + for (;;) { + const char *dot = strchr(p, '.'); + size_t l = dot ? (size_t)(dot - p) : strlen(p); + if (l == 0 || l > 63 || qn + l + 2 >= sizeof(q)) + return 0; + q[qn++] = (unsigned char)l; + memcpy(q + qn, p, l); + qn += l; + if (!dot) + break; + p = dot + 1; + } + q[qn++] = 0; + q[qn++] = (unsigned char)(qtype >> 8); + q[qn++] = (unsigned char)(qtype & 0xFF); + q[qn++] = 0x00; + q[qn++] = 0x01; + + int fd = socket(AF_INET, SOCK_DGRAM, 0); + if (fd < 0) + return 0; + struct timeval tv; + tv.tv_sec = 5; + tv.tv_usec = 0; + setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); + struct sockaddr_in srv; + memset(&srv, 0, sizeof(srv)); + srv.sin_family = AF_INET; + srv.sin_port = htons(53); + if (inet_pton(AF_INET, server, &srv.sin_addr) != 1) { + close(fd); + return 0; + } + if (sendto(fd, q, qn, 0, (struct sockaddr *)&srv, sizeof(srv)) < 0) { + close(fd); + return 0; + } + unsigned char r[2048]; + ssize_t rn = recv(fd, r, sizeof(r), 0); + close(fd); + if (rn < 12) + return 0; + + size_t pos = 12; + int qd = (r[4] << 8) | r[5]; + int an = (r[6] << 8) | r[7]; + for (int i = 0; i < qd; i++) { + while (pos < (size_t)rn && r[pos] != 0) { + if ((r[pos] & 0xC0) == 0xC0) { + pos += 2; + goto q_done; + } + pos += (size_t)r[pos] + 1; + } + pos++; +q_done: + pos += 4; + } + int found = 0; + for (int i = 0; i < an && pos + 12 <= (size_t)rn; i++) { + if ((r[pos] & 0xC0) == 0xC0) { + pos += 2; + } else { + while (pos < (size_t)rn && r[pos] != 0) + pos += (size_t)r[pos] + 1; + pos++; + } + if (pos + 10 > (size_t)rn) + break; + int type = (r[pos] << 8) | r[pos + 1]; + int rdlen = (r[pos + 8] << 8) | r[pos + 9]; + pos += 10; + if (pos + (size_t)rdlen > (size_t)rn) + break; + if (type == qtype) { + if (type == 1 && rdlen == 4) + add_addr(list, max, n, AF_INET, r + pos, port); + else if (type == 28 && rdlen == 16) + add_addr(list, max, n, AF_INET6, r + pos, port); + found = 1; + } + pos += (size_t)rdlen; + } + return found; +} + +static int dns_lookup(const char *host, int port, csaddr *list, size_t max, size_t *n) +{ + FILE *fp = fopen("/etc/resolv.conf", "r"); + if (!fp) + return 0; + char line[512]; + int found = 0; + while (fgets(line, sizeof(line), fp) && found == 0) { + char *p = line; + while (*p == ' ' || *p == '\t') + p++; + if (strncmp(p, "nameserver", 10) != 0) + continue; + p += 10; + while (*p == ' ' || *p == '\t') + p++; + char *end = p; + while (*end && *end != '\n' && *end != '\r' && *end != ' ' && *end != '\t') + end++; + *end = '\0'; + if (!*p) + continue; + if (dns_query_server(p, host, 1, port, list, max, n)) + found = 1; + else if (dns_query_server(p, host, 28, port, list, max, n)) + found = 1; + } + fclose(fp); + return found; +} + +static int resolve_addrs(const char *host, int port, csaddr *list, size_t max, size_t *n, cerror *e) +{ + *n = 0; + struct addrinfo hints; + struct addrinfo *res = NULL; + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + char service[16]; + snprintf(service, sizeof(service), "%d", port); + int rc = getaddrinfo(host, service, &hints, &res); + if (rc == 0) { + for (struct addrinfo *ai = res; ai && *n < max; ai = ai->ai_next) { + if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) + continue; + csaddr *a = &list[(*n)++]; + memset(a, 0, sizeof(*a)); + a->family = ai->ai_family; + memcpy(&a->ss, ai->ai_addr, ai->ai_addrlen); + a->len = (socklen_t)ai->ai_addrlen; + } + freeaddrinfo(res); + if (*n > 0) + return 0; + } + if (hosts_lookup(host, port, list, max, n) > 0) + return 0; + if (dns_lookup(host, port, list, max, n) > 0) + return 0; + if (rc != 0) + err_set(e, ERR_NET, 0, "[Errno -3] Temporary failure in name resolution (%s: %s)", host, gai_strerror(rc)); + else + err_set(e, ERR_NET, 0, "[Errno -2] Name or service not known (%s)", host); + return -1; +} + +/* ------------------------------------------------------------------ socket */ + +static int connect_timeout(const csaddr *a, cerror *e) +{ + int fd = socket(a->family, SOCK_STREAM, 0); + if (fd < 0) { + err_set(e, ERR_NET, 0, "[Errno %d] %s", errno, strerror(errno)); + return -1; + } + int flags = fcntl(fd, F_GETFL, 0); + if (flags >= 0) + fcntl(fd, F_SETFL, flags | O_NONBLOCK); + int rc = connect(fd, (const struct sockaddr *)&a->ss, a->len); + if (rc != 0 && errno != EINPROGRESS) { + int saved = errno; + close(fd); + errno = saved; + err_set(e, ERR_NET, 0, "[Errno %d] %s", saved, strerror(saved)); + return -1; + } + if (rc != 0) { + struct pollfd pfd; + pfd.fd = fd; + pfd.events = POLLOUT; + pfd.revents = 0; + int pr = poll(&pfd, 1, HTTP_CONNECT_TIMEOUT * 1000); + if (pr == 0) { + close(fd); + err_set(e, ERR_NET, 0, "[Errno 110] Connection timed out"); + return -1; + } + if (pr < 0) { + int saved = errno; + close(fd); + err_set(e, ERR_NET, 0, "[Errno %d] %s", errno, strerror(errno)); + (void)saved; + return -1; + } + int soerr = 0; + socklen_t slen = sizeof(soerr); + if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &soerr, &slen) != 0 || soerr != 0) { + close(fd); + errno = soerr ? soerr : errno; + err_set(e, ERR_NET, 0, "[Errno %d] %s", soerr, strerror(soerr)); + return -1; + } + } + if (flags >= 0) + fcntl(fd, F_SETFL, flags); + struct timeval tv; + tv.tv_sec = HTTP_IO_TIMEOUT; + tv.tv_usec = 0; + setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)); + setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); + return fd; +} + +static int send_all(int fd, const char *buf, size_t len, cerror *e) +{ + size_t off = 0; + while (off < len) { + ssize_t n = send(fd, buf + off, len - off, 0); + if (n < 0) { + if (errno == EINTR) + continue; + err_set(e, ERR_NET, 0, "[Errno %d] %s", errno, strerror(errno)); + return -1; + } + off += (size_t)n; + } + return 0; +} + +/* ------------------------------------------------------------ lettura bufferizzata */ + +/* Ricerca case-insensitive (strcasestr e' GNU, non POSIX). */ +static int contains_nocase(const char *hay, const char *needle) +{ + if (!hay || !needle) + return 0; + size_t nl = strlen(needle); + if (nl == 0) + return 1; + for (const char *p = hay; *p; p++) { + if (!strncasecmp(p, needle, nl)) + return 1; + } + return 0; +} + +static int fill(chttp *c, cerror *e) +{ + if (c->eof) + return 0; + if (c->pos == c->len) { + c->pos = 0; + c->len = 0; + c->scanned = 0; + } + if (!c->buf) { + c->cap = HTTP_READ_CHUNK; + c->buf = xmalloc(c->cap, e); + if (!c->buf) + return -1; + } + /* Compatta i byte non consumati; se il buffer e' pieno di dati utili + * (riga molto lunga) lo fa crescere invece di leggere 0 byte. */ + if (c->len == c->cap) { + if (c->pos > 0) { + memmove(c->buf, c->buf + c->pos, c->len - c->pos); + c->len -= c->pos; + c->pos = 0; + } + if (c->len == c->cap) { + if (c->cap >= HTTP_MAX_HEADER * 4) { + err_set(e, ERR_NET, 0, "response line too long"); + return -1; + } + size_t ncap = c->cap * 2; + char *nb = xrealloc(c->buf, ncap, e); + if (!nb) + return -1; + c->buf = nb; + c->cap = ncap; + } + } + for (;;) { + ssize_t n = recv(c->fd, c->buf + c->len, c->cap - c->len, 0); + if (n < 0) { + if (errno == EINTR) + continue; + if (errno == EAGAIN || errno == EWOULDBLOCK) { + err_set(e, ERR_NET, 0, "[Errno 110] Connection timed out"); + return -1; + } + err_set(e, ERR_NET, 0, "[Errno %d] %s", errno, strerror(errno)); + return -1; + } + if (n == 0) { + c->eof = 1; + return 0; + } + c->len += (size_t)n; + return 1; + } +} + +/* Prende i byte disponibili nel buffer (senza leggere dal socket). */ +static size_t buffered(chttp *c) +{ + return c->len - c->pos; +} + +static int read_line(chttp *c, dynbuf *out, cerror *e) +{ + c->scanned = 0; + for (;;) { + for (size_t i = (size_t)c->scanned; i < buffered(c); i++) { + if (c->buf[c->pos + i] == '\n') { + size_t linelen = i; + if (linelen > 0 && c->buf[c->pos + linelen - 1] == '\r') + linelen--; + if (db_append(out, c->buf + c->pos, linelen, e) != 0) + return -1; + c->pos += i + 1; + return 0; + } + } + c->scanned = (long long)buffered(c); + int fr = fill(c, e); + if (fr < 0) + return -1; + if (fr == 0) { + err_set(e, ERR_NET, 0, "connection closed while reading a line"); + return -1; + } + /* i dati gia' scansionati restano; riparte lo scan dall'offset salvato */ + } +} + +/* Legge esattamente n byte dal buffer/socket. Ritorna 0 se tutti letti, + * 1 se EOF anticipato (con i byte disponibili comunque consegnati). */ +static int read_exact(chttp *c, char *dst, size_t n, size_t *got, cerror *e) +{ + size_t off = 0; + while (off < n) { + if (buffered(c) == 0) { + int fr = fill(c, e); + if (fr < 0) { + *got = off; + return -1; + } + if (fr == 0) { + *got = off; + return 1; + } + } + size_t avail = buffered(c); + size_t take = (avail < n - off) ? avail : (n - off); + memcpy(dst + off, c->buf + c->pos, take); + c->pos += take; + off += take; + c->scanned = 0; + } + *got = off; + return 0; +} + +/* ------------------------------------------------------------------ richiesta */ + +static int dispatch(chttp *c, body_write_fn consume, void *ctx, dynbuf *acc, const char *buf, size_t len, + cerror *e) +{ + (void)c; + if (len == 0) + return 0; + if (consume) + return consume(ctx, buf, len, e); + if (acc) { + if (acc->len + len > HTTP_MAX_BODY_MEM) { + err_set(e, ERR_NET, 0, "response body too large (> %u bytes)", HTTP_MAX_BODY_MEM); + return -1; + } + return db_append(acc, buf, len, e); + } + return 0; +} + +int http_read_body(chttp *c, body_write_fn consume, void *ctx, csresponse *meta, cerror *e) +{ + dynbuf acc; + db_init(&acc); + char buf[65536]; + int rc = 0; + + if (c->done) { + rc = 0; + goto finish; + } + + if (c->chunked) { + while (!c->done) { + dynbuf line; + db_init(&line); + if (read_line(c, &line, e) != 0) { + db_free(&line); + rc = -1; + goto finish; + } + char *endp = NULL; + long long sz = strtoll(line.data ? line.data : "", &endp, 16); + db_free(&line); + if (sz < 0) { + err_set(e, ERR_NET, 0, "invalid chunk size"); + rc = -1; + goto finish; + } + if (sz == 0) { + /* trailer: righe fino a quella vuota */ + for (;;) { + dynbuf tl; + db_init(&tl); + if (read_line(c, &tl, e) != 0) { + db_free(&tl); + rc = -1; + goto finish; + } + int empty = (tl.len == 0); + db_free(&tl); + if (empty) + break; + } + c->done = 1; + break; + } + long long left = sz; + while (left > 0) { + size_t got = 0; + size_t want = (left < (long long)sizeof(buf)) ? (size_t)left : sizeof(buf); + int r = read_exact(c, buf, want, &got, e); + if (got > 0) { + if (dispatch(c, consume, ctx, &acc, buf, got, e) != 0) { + rc = -1; + goto finish; + } + left -= (long long)got; + } + if (r != 0) { + if (r < 0) + rc = -1; + else + err_set(e, ERR_NET, 0, "truncated chunked body"); + goto finish; + } + } + dynbuf crlf; + db_init(&crlf); + if (read_line(c, &crlf, e) != 0) { + db_free(&crlf); + rc = -1; + goto finish; + } + db_free(&crlf); + } + } else { + long long left = c->remaining; /* -1 = fino a EOF */ + while (left != 0) { + if (buffered(c) == 0) { + int fr = fill(c, e); + if (fr < 0) { + rc = -1; + goto finish; + } + if (fr == 0) + break; /* EOF: fine legittima con Connection: close */ + } + size_t avail = buffered(c); + size_t take = avail; + if (left >= 0 && (long long)take > left) + take = (size_t)left; + if (dispatch(c, consume, ctx, &acc, c->buf + c->pos, take, e) != 0) { + rc = -1; + goto finish; + } + c->pos += take; + if (left > 0) + left -= (long long)take; + } + if (left > 0) { + err_set(e, ERR_NET, 0, "connection closed with %lld bytes missing", left); + rc = -1; + goto finish; + } + } + +finish: + if (rc == 0 && meta) { + meta->body = acc.data; + meta->body_len = acc.len; + if (!consume) + acc.data = NULL; /* passato al chiamante */ + } + db_free(&acc); + return rc; +} + +void http_close(chttp *c) +{ + if (!c) + return; + if (c->fd >= 0) + close(c->fd); + free(c->buf); + free(c); +} + +void csresponse_free(csresponse *resp) +{ + if (!resp) + return; + free(resp->headers); + free(resp->body); + memset(resp, 0, sizeof(*resp)); +} + +char *http_header_value(const char *headers, const char *name, cerror *e) +{ + if (!headers) + return NULL; + size_t nl = strlen(name); + const char *p = headers; + while (p && *p) { + const char *eol = strchr(p, '\n'); + size_t linelen = eol ? (size_t)(eol - p) : strlen(p); + size_t trimmed = linelen; + while (trimmed > 0 && (p[trimmed - 1] == '\r' || p[trimmed - 1] == ' ')) + trimmed--; + if (trimmed > nl && !strncasecmp(p, name, nl) && p[nl] == ':') { + const char *v = p + nl + 1; + while (*v == ' ' || *v == '\t') + v++; + size_t off = (size_t)(v - p); + size_t vl = (linelen > off) ? linelen - off : 0; + while (vl > 0 && (v[vl - 1] == '\r' || v[vl - 1] == ' ')) + vl--; + return xstrndup(v, vl, e); + } + if (!eol) + break; + p = eol + 1; + } + return NULL; +} + +char *http_disposition_filename(const char *headers, cerror *e) +{ + char *cd = http_header_value(headers, "Content-Disposition", e); + if (!cd) + return NULL; + char *result = NULL; + const char *p = strstr(cd, "filename="); + if (p) { + p += 9; + if (*p == '"') { + p++; + const char *end = strchr(p, '"'); + if (end) + result = xstrndup(p, (size_t)(end - p), e); + } else { + const char *end = p; + while (*end && *end != ';' && *end != ' ' && *end != '\r' && *end != '\n') + end++; + result = xstrndup(p, (size_t)(end - p), e); + } + } + free(cd); + return result; +} + +static int request_once(const csurl *u, const char *method, const char *content_type, long long body_len, + body_read_fn produce, void *pctx, chttp **out, csresponse *meta, cerror *e) +{ + csaddr addrs[32]; + size_t naddr = 0; + if (resolve_addrs(u->host, u->port, addrs, 32, &naddr, e) != 0) + return -1; + + int fd = -1; + cerror last; + err_clear(&last); + for (size_t i = 0; i < naddr; i++) { + cerror ce; + err_clear(&ce); + fd = connect_timeout(&addrs[i], &ce); + if (fd >= 0) + break; + last = ce; + } + if (fd < 0) { + if (last.kind != ERR_NONE) + *e = last; + else + err_set(e, ERR_NET, 0, "connect failed"); + return -1; + } + + dynbuf req; + db_init(&req); + char hosthdr[600]; + url_hostpart(u, hosthdr, sizeof(hosthdr)); + int rc = db_printf(&req, e, "%s %s HTTP/1.1\r\nHost: %s\r\n", method, u->path, hosthdr); + if (rc == 0) + rc = db_printf(&req, e, "User-Agent: cellar-cli/%s\r\n", CELLAR_VERSION); + if (rc == 0) + rc = db_puts(&req, "Accept: */*\r\nAccept-Encoding: identity\r\nConnection: close\r\n", e); + if (rc == 0 && content_type) + rc = db_printf(&req, e, "Content-Type: %s\r\n", content_type); + if (rc == 0 && body_len >= 0) + rc = db_printf(&req, e, "Content-Length: %lld\r\n", body_len); + if (rc == 0) + rc = db_puts(&req, "\r\n", e); + if (rc != 0) { + db_free(&req); + close(fd); + return -1; + } + if (send_all(fd, req.data, req.len, e) != 0) { + db_free(&req); + close(fd); + return -1; + } + db_free(&req); + + if (body_len > 0 && produce) { + char buf[65536]; + long long sent = 0; + while (sent < body_len) { + size_t want = sizeof(buf); + if ((long long)want > body_len - sent) + want = (size_t)(body_len - sent); + long n = produce(pctx, buf, want, e); + if (n < 0) { + close(fd); + return -1; + } + if (n == 0) + break; + if (send_all(fd, buf, (size_t)n, e) != 0) { + close(fd); + return -1; + } + sent += n; + } + } + + chttp *c = xmalloc(sizeof(*c), e); + if (!c) { + close(fd); + return -1; + } + memset(c, 0, sizeof(*c)); + c->fd = fd; + c->remaining = -1; + + dynbuf hdr; + db_init(&hdr); + for (;;) { + dynbuf line; + db_init(&line); + if (read_line(c, &line, e) != 0) { + db_free(&line); + db_free(&hdr); + http_close(c); + return -1; + } + int empty = (line.len == 0); + if (!empty) { + if (db_append(&hdr, line.data, line.len, e) != 0 || db_puts(&hdr, "\r\n", e) != 0) { + db_free(&line); + db_free(&hdr); + http_close(c); + return -1; + } + } + db_free(&line); + if (empty) + break; + if (hdr.len > HTTP_MAX_HEADER) { + err_set(e, ERR_NET, 0, "response headers too large"); + db_free(&hdr); + http_close(c); + return -1; + } + } + + int status = 0; + if (hdr.data && !strncmp(hdr.data, "HTTP/", 5)) { + const char *sp = strchr(hdr.data, ' '); + if (sp) + status = atoi(sp + 1); + } + if (status == 0) { + db_free(&hdr); + http_close(c); + err_set(e, ERR_NET, 0, "malformed HTTP status line"); + return -1; + } + + meta->status = status; + meta->headers = hdr.data; /* trasferito */ + meta->content_length = -1; + meta->body = NULL; + meta->body_len = 0; + + char *cl = http_header_value(hdr.data, "Content-Length", e); + if (cl) { + meta->content_length = atoll(cl); + free(cl); + } + char *te = http_header_value(hdr.data, "Transfer-Encoding", e); + if (te && contains_nocase(te, "chunked")) { + c->chunked = 1; + c->remaining = -1; + } else { + c->chunked = 0; + c->remaining = meta->content_length; + } + free(te); + if (status == 204 || status == 304 || !strcmp(method, "HEAD")) + c->done = 1; + + *out = c; + return 0; +} + +int http_open(const char *url, const char *method, const char *content_type, long long body_len, + body_read_fn produce, void *produce_ctx, chttp **out, csresponse *meta, cerror *e) +{ + memset(meta, 0, sizeof(*meta)); + *out = NULL; + + csurl u; + cerror ce; + err_clear(&ce); + if (csurl_parse(url, &u, &ce) != 0) { + *e = ce; + return -1; + } + if (u.is_https) { + err_set(e, ERR_NET, 0, + "TLS non supportato da questa build (usa http:// o pubblica il server dietro un proxy TLS)"); + return -1; + } + + /* Copia di lavoro dell'URL: i redirect la aggiornano. */ + char cur_url[6000]; + snprintf(cur_url, sizeof(cur_url), "%s", url); + const char *cur_method = method; + const char *cur_ct = content_type; + long long cur_len = body_len; + body_read_fn cur_produce = produce; + void *cur_ctx = produce_ctx; + + for (int hop = 0; hop <= HTTP_MAX_REDIRECTS; hop++) { + csurl cu; + cerror ue; + err_clear(&ue); + if (csurl_parse(cur_url, &cu, &ue) != 0) { + *e = ue; + return -1; + } + chttp *c = NULL; + if (request_once(&cu, cur_method, cur_ct, cur_len, cur_produce, cur_ctx, &c, meta, e) != 0) + return -1; + + int st = meta->status; + if (st != 301 && st != 302 && st != 303 && st != 307 && st != 308) { + *out = c; + return 0; + } + char *loc = http_header_value(meta->headers, "Location", e); + int allowed = 0; + if (loc) { + if (!strcmp(cur_method, "GET") || !strcmp(cur_method, "HEAD")) + allowed = 1; /* 301/302/303/307/308 */ + else if (!strcmp(cur_method, "POST") && (st == 301 || st == 302 || st == 303)) + allowed = 1; /* POST -> GET, come urllib.request */ + } + if (!loc || !allowed) { + /* urllib solleva HTTPError: nessun follow automatico */ + free(loc); + http_close(c); + csresponse_free(meta); + err_set(e, ERR_HTTP, st, + "redirect non seguito (HTTP %d)", st); + return -1; + } + char newurl[6000]; + int jr = url_join(&cu, loc, newurl, sizeof(newurl), e); + free(loc); + http_close(c); + csresponse_free(meta); + if (jr != 0) + return -1; + if (!strcmp(cur_method, "POST") && (st == 301 || st == 302 || st == 303)) { + cur_method = "GET"; + cur_ct = NULL; + cur_len = -1; + cur_produce = NULL; + cur_ctx = NULL; + } + snprintf(cur_url, sizeof(cur_url), "%s", newurl); + } + err_set(e, ERR_NET, 0, "troppi redirect (max %d)", HTTP_MAX_REDIRECTS); + return -1; +} + +int http_get(const char *url, csresponse *resp, cerror *e) +{ + chttp *c = NULL; + if (http_open(url, "GET", NULL, -1, NULL, NULL, &c, resp, e) != 0) + return -1; + int rc = http_read_body(c, NULL, NULL, resp, e); + http_close(c); + return rc; +} + +int http_get_stream(const char *url, csresponse *resp, body_write_fn consume, void *ctx, cerror *e) +{ + chttp *c = NULL; + if (http_open(url, "GET", NULL, -1, NULL, NULL, &c, resp, e) != 0) + return -1; + int rc = http_read_body(c, consume, ctx, resp, e); + http_close(c); + return rc; +} + +int http_post(const char *url, const char *content_type, long long body_len, body_read_fn produce, void *ctx, + csresponse *resp, cerror *e) +{ + chttp *c = NULL; + if (http_open(url, "POST", content_type, body_len, produce, ctx, &c, resp, e) != 0) + return -1; + int rc = http_read_body(c, NULL, NULL, resp, e); + http_close(c); + return rc; +} diff --git a/src/http.h b/src/http.h new file mode 100644 index 0000000..bec790b --- /dev/null +++ b/src/http.h @@ -0,0 +1,71 @@ +/* http.h — client HTTP/1.1 minimale su socket BSD. + * + * Volutamente autonomo: nessuna libcurl, nessuna OpenSSL (il server Cellar + * parla HTTP). Su getaddrinfo si innesta un resolver di riserva (hosts file + + * query DNS diretta) perche' la glibc statica puo' non avere NSS a runtime su + * firmware vecchi. + * + * Uso tipico in due fasi (serve per decidere il nome file dal + * Content-Disposition prima di scrivere il corpo): + * + * chttp *c; csresponse meta; + * http_open(url, "GET", NULL, -1, NULL, NULL, &c, &meta, &e); + * ... guarda meta.headers ... + * http_read_body(c, write_cb, ctx, &meta, &e); + * http_close(c); + */ +#ifndef CELLAR_HTTP_H +#define CELLAR_HTTP_H + +#include "common.h" + +#include + +typedef struct chttp chttp; + +typedef struct { + char scheme[16]; + char host[512]; + int port; + char path[4096]; /* path + query */ + int is_https; +} csurl; + +typedef struct { + int status; + char *headers; /* blocco header grezzo, NULL-terminato */ + long long content_length; /* -1 se assente */ + char *body; /* valorizzato solo dalle chiamate che accumulano */ + size_t body_len; +} csresponse; + +/* Produce il corpo della richiesta: >0 byte scritti, 0 fine, -1 errore. */ +typedef long (*body_read_fn)(void *ctx, char *buf, size_t cap, cerror *e); +/* Consuma il corpo della risposta: 0 ok, -1 errore. */ +typedef int (*body_write_fn)(void *ctx, const char *buf, size_t len, cerror *e); + +int csurl_parse(const char *url, csurl *u, cerror *e); + +/* Esegue la richiesta e ritorna dopo aver letto gli header (segue i redirect + * come urllib.request). */ +int http_open(const char *url, const char *method, const char *content_type, long long body_len, + body_read_fn produce, void *produce_ctx, chttp **out, csresponse *meta, cerror *e); + +/* Legge tutto il corpo. consume == NULL -> accumula in meta->body. */ +int http_read_body(chttp *c, body_write_fn consume, void *ctx, csresponse *meta, cerror *e); + +void http_close(chttp *c); +void csresponse_free(csresponse *resp); + +/* Scorciatoie. */ +int http_get(const char *url, csresponse *resp, cerror *e); +int http_get_stream(const char *url, csresponse *resp, body_write_fn consume, void *ctx, cerror *e); +int http_post(const char *url, const char *content_type, long long body_len, body_read_fn produce, void *ctx, + csresponse *resp, cerror *e); + +/* Cerca un header (case-insensitive) nel blocco grezzo; valore allocato o NULL. */ +char *http_header_value(const char *headers, const char *name, cerror *e); +/* filename da Content-Disposition (gestisce la forma quoted). */ +char *http_disposition_filename(const char *headers, cerror *e); + +#endif /* CELLAR_HTTP_H */ diff --git a/src/json.c b/src/json.c new file mode 100644 index 0000000..df55592 --- /dev/null +++ b/src/json.c @@ -0,0 +1,508 @@ +/* json.c — parser JSON minimale con decodifica \u e escaper ensure_ascii. */ +#include "json.h" + +#include +#include + +#define JSON_MAX_DEPTH 128 + +typedef struct { + const char *s; + size_t len; + size_t pos; + char *errbuf; + size_t errsz; + int depth; +} jparser; + +static void jerr(jparser *p, const char *fmt, ...) +{ + if (!p->errbuf || !p->errsz) + return; + va_list ap; + va_start(ap, fmt); + vsnprintf(p->errbuf, p->errsz, fmt, ap); + va_end(ap); +} + +static void skip_ws(jparser *p) +{ + while (p->pos < p->len) { + char c = p->s[p->pos]; + if (c == ' ' || c == '\t' || c == '\n' || c == '\r') + p->pos++; + else + break; + } +} + +static jval *jnew(jtype t, cerror *e) +{ + jval *v = xmalloc(sizeof(*v), e); + if (!v) + return NULL; + memset(v, 0, sizeof(*v)); + v->t = t; + return v; +} + +static void utf8_encode(unsigned int cp, dynbuf *b, cerror *e) +{ + char tmp[4]; + size_t n; + if (cp < 0x80) { + tmp[0] = (char)cp; + n = 1; + } else if (cp < 0x800) { + tmp[0] = (char)(0xC0 | (cp >> 6)); + tmp[1] = (char)(0x80 | (cp & 0x3F)); + n = 2; + } else if (cp < 0x10000) { + tmp[0] = (char)(0xE0 | (cp >> 12)); + tmp[1] = (char)(0x80 | ((cp >> 6) & 0x3F)); + tmp[2] = (char)(0x80 | (cp & 0x3F)); + n = 3; + } else { + tmp[0] = (char)(0xF0 | (cp >> 18)); + tmp[1] = (char)(0x80 | ((cp >> 12) & 0x3F)); + tmp[2] = (char)(0x80 | ((cp >> 6) & 0x3F)); + tmp[3] = (char)(0x80 | (cp & 0x3F)); + n = 4; + } + db_append(b, tmp, n, e); +} + +static int hex4(jparser *p, unsigned int *out) +{ + unsigned int v = 0; + for (int i = 0; i < 4; i++) { + if (p->pos >= p->len) + return -1; + char c = p->s[p->pos++]; + v <<= 4; + if (c >= '0' && c <= '9') + v |= (unsigned)(c - '0'); + else if (c >= 'a' && c <= 'f') + v |= (unsigned)(c - 'a' + 10); + else if (c >= 'A' && c <= 'F') + v |= (unsigned)(c - 'A' + 10); + else + return -1; + } + *out = v; + return 0; +} + +static char *parse_string(jparser *p, cerror *e) +{ + if (p->pos >= p->len || p->s[p->pos] != '"') { + jerr(p, "stringa attesa a offset %zu", p->pos); + return NULL; + } + p->pos++; + dynbuf b; + db_init(&b); + while (1) { + if (p->pos >= p->len) { + jerr(p, "stringa non terminata"); + db_free(&b); + return NULL; + } + unsigned char c = (unsigned char)p->s[p->pos++]; + if (c == '"') + break; + if (c < 0x20) { + jerr(p, "carattere di controllo non escapato in stringa"); + db_free(&b); + return NULL; + } + if (c != '\\') { + if (db_append(&b, &c, 1, e) != 0) { + db_free(&b); + return NULL; + } + continue; + } + if (p->pos >= p->len) { + jerr(p, "escape non terminato"); + db_free(&b); + return NULL; + } + char esc = p->s[p->pos++]; + switch (esc) { + case '"': db_append(&b, "\"", 1, e); break; + case '\\': db_append(&b, "\\", 1, e); break; + case '/': db_append(&b, "/", 1, e); break; + case 'b': db_append(&b, "\b", 1, e); break; + case 'f': db_append(&b, "\f", 1, e); break; + case 'n': db_append(&b, "\n", 1, e); break; + case 'r': db_append(&b, "\r", 1, e); break; + case 't': db_append(&b, "\t", 1, e); break; + case 'u': { + unsigned int cp; + if (hex4(p, &cp) != 0) { + jerr(p, "\\u malformato"); + db_free(&b); + return NULL; + } + if (cp >= 0xD800 && cp <= 0xDBFF) { + /* surrogate alta: attende la bassa */ + if (p->pos + 1 < p->len && p->s[p->pos] == '\\' && p->s[p->pos + 1] == 'u') { + size_t save = p->pos; + p->pos += 2; + unsigned int lo; + if (hex4(p, &lo) == 0 && lo >= 0xDC00 && lo <= 0xDFFF) { + cp = 0x10000 + (((cp - 0xD800) << 10) | (lo - 0xDC00)); + } else { + p->pos = save; + } + } + } + utf8_encode(cp, &b, e); + break; + } + default: + jerr(p, "escape non valido '\\%c'", esc); + db_free(&b); + return NULL; + } + } + if (!b.data && db_append(&b, "", 0, e) != 0) { + db_free(&b); + return NULL; + } + return b.data; +} + +static jval *parse_value(jparser *p, cerror *e); + +static jval *parse_array(jparser *p, cerror *e) +{ + jval *v = jnew(JARR, e); + if (!v) + return NULL; + p->pos++; /* '[' */ + skip_ws(p); + if (p->pos < p->len && p->s[p->pos] == ']') { + p->pos++; + return v; + } + while (1) { + skip_ws(p); + jval *item = parse_value(p, e); + if (!item) { + json_free(v); + return NULL; + } + jval **ni = xrealloc(v->items, (v->n + 1) * sizeof(*ni), e); + if (!ni) { + json_free(item); + json_free(v); + return NULL; + } + v->items = ni; + v->items[v->n++] = item; + skip_ws(p); + if (p->pos >= p->len) { + jerr(p, "array non terminato"); + json_free(v); + return NULL; + } + if (p->s[p->pos] == ',') { + p->pos++; + continue; + } + if (p->s[p->pos] == ']') { + p->pos++; + return v; + } + jerr(p, "',' o ']' attesi a offset %zu", p->pos); + json_free(v); + return NULL; + } +} + +static jval *parse_object(jparser *p, cerror *e) +{ + jval *v = jnew(JOBJ, e); + if (!v) + return NULL; + p->pos++; /* '{' */ + skip_ws(p); + if (p->pos < p->len && p->s[p->pos] == '}') { + p->pos++; + return v; + } + while (1) { + skip_ws(p); + char *key = parse_string(p, e); + if (!key) { + json_free(v); + return NULL; + } + skip_ws(p); + if (p->pos >= p->len || p->s[p->pos] != ':') { + jerr(p, "':' atteso a offset %zu", p->pos); + free(key); + json_free(v); + return NULL; + } + p->pos++; + skip_ws(p); + jval *item = parse_value(p, e); + if (!item) { + free(key); + json_free(v); + return NULL; + } + char **nk = xrealloc(v->keys, (v->n + 1) * sizeof(*nk), e); + jval **ni = xrealloc(v->items, (v->n + 1) * sizeof(*ni), e); + if (!nk || !ni) { + free(key); + json_free(item); + json_free(v); + return NULL; + } + v->keys = nk; + v->items = ni; + v->keys[v->n] = key; + v->items[v->n] = item; + v->n++; + skip_ws(p); + if (p->pos >= p->len) { + jerr(p, "oggetto non terminato"); + json_free(v); + return NULL; + } + if (p->s[p->pos] == ',') { + p->pos++; + continue; + } + if (p->s[p->pos] == '}') { + p->pos++; + return v; + } + jerr(p, "',' o '}' attesi a offset %zu", p->pos); + json_free(v); + return NULL; + } +} + +static jval *parse_value(jparser *p, cerror *e) +{ + if (++p->depth > JSON_MAX_DEPTH) { + jerr(p, "JSON troppo annidato"); + p->depth--; + return NULL; + } + jval *result = NULL; + if (p->pos >= p->len) { + jerr(p, "valore atteso a fine input"); + goto done; + } + char c = p->s[p->pos]; + if (c == '{') { + result = parse_object(p, e); + } else if (c == '[') { + result = parse_array(p, e); + } else if (c == '"') { + char *s = parse_string(p, e); + if (s) { + result = jnew(JSTR, e); + if (result) + result->str = s; + else + free(s); + } + } else if (!strncmp(p->s + p->pos, "true", 4) && p->pos + 4 <= p->len) { + p->pos += 4; + result = jnew(JBOOL, e); + if (result) + result->boolean = 1; + } else if (!strncmp(p->s + p->pos, "false", 5) && p->pos + 5 <= p->len) { + p->pos += 5; + result = jnew(JBOOL, e); + } else if (!strncmp(p->s + p->pos, "null", 4) && p->pos + 4 <= p->len) { + p->pos += 4; + result = jnew(JNULL, e); + } else if (c == '-' || (c >= '0' && c <= '9')) { + char tmp[64]; + size_t n = 0; + while (p->pos < p->len && n < sizeof(tmp) - 1) { + char d = p->s[p->pos]; + if ((d >= '0' && d <= '9') || d == '-' || d == '+' || d == '.' || d == 'e' || d == 'E') { + tmp[n++] = d; + p->pos++; + } else { + break; + } + } + tmp[n] = '\0'; + char *end = NULL; + double d = strtod(tmp, &end); + if (end == tmp) { + jerr(p, "numero non valido a offset %zu", p->pos); + goto done; + } + result = jnew(JNUM, e); + if (result) + result->num = d; + } else { + jerr(p, "token non valido '%c' a offset %zu", c, p->pos); + } +done: + p->depth--; + return result; +} + +jval *json_parse(const char *s, size_t len, char *errbuf, size_t errsz) +{ + cerror e; + err_clear(&e); + jparser p; + memset(&p, 0, sizeof(p)); + p.s = s; + p.len = len; + p.errbuf = errbuf; + p.errsz = errsz; + if (errbuf && errsz) + errbuf[0] = '\0'; + skip_ws(&p); + jval *v = parse_value(&p, &e); + if (!v) { + if (e.kind != ERR_NONE && errbuf && errsz) + snprintf(errbuf, errsz, "%s", e.msg); + return NULL; + } + skip_ws(&p); + if (p.pos != p.len) { + if (errbuf && errsz) + snprintf(errbuf, errsz, "dati residui dopo il valore JSON (offset %zu)", p.pos); + json_free(v); + return NULL; + } + return v; +} + +void json_free(jval *v) +{ + if (!v) + return; + if (v->t == JSTR) + free(v->str); + if (v->keys) { + for (size_t i = 0; i < v->n; i++) + free(v->keys[i]); + free(v->keys); + } + if (v->items) { + for (size_t i = 0; i < v->n; i++) + json_free(v->items[i]); + free(v->items); + } + free(v); +} + +const jval *json_obj_get(const jval *o, const char *key) +{ + if (!o || o->t != JOBJ) + return NULL; + for (size_t i = 0; i < o->n; i++) { + if (o->keys[i] && strcmp(o->keys[i], key) == 0) + return o->items[i]; + } + return NULL; +} + +const jval *json_arr_at(const jval *a, size_t i) +{ + if (!a || a->t != JARR || i >= a->n) + return NULL; + return a->items[i]; +} + +size_t json_arr_len(const jval *a) +{ + return (a && a->t == JARR) ? a->n : 0; +} + +const char *json_as_str(const jval *v) +{ + return (v && v->t == JSTR) ? v->str : NULL; +} + +double json_as_num(const jval *v) +{ + return (v && v->t == JNUM) ? v->num : 0.0; +} + +int json_as_bool(const jval *v) +{ + return (v && v->t == JBOOL) ? v->boolean : 0; +} + +int json_is_null(const jval *v) +{ + return (!v || v->t == JNULL) ? 1 : 0; +} + +/* --------------------------------------------------------------- escaper */ + +/* json.dumps(..., ensure_ascii=True): tutti i code point non-ASCII diventano + * \uXXXX (coppie surrogate oltre il BMP), i caratteri di controllo prendono le + * forme brevi quando esistono, hex in minuscolo. */ +int json_write_escaped(dynbuf *out, const char *s, cerror *e) +{ + const unsigned char *p = (const unsigned char *)s; + if (db_append(out, "\"", 1, e) != 0) + return -1; + while (*p) { + unsigned char c = *p; + unsigned int cp = 0; + size_t adv = 1; + if (c < 0x80) { + cp = c; + } else if ((c & 0xE0) == 0xC0 && p[1]) { + cp = ((unsigned)(c & 0x1F) << 6) | (p[1] & 0x3F); + adv = 2; + } else if ((c & 0xF0) == 0xE0 && p[1] && p[2]) { + cp = ((unsigned)(c & 0x0F) << 12) | ((unsigned)(p[1] & 0x3F) << 6) | (p[2] & 0x3F); + adv = 3; + } else if ((c & 0xF8) == 0xF0 && p[1] && p[2] && p[3]) { + cp = ((unsigned)(c & 0x07) << 18) | ((unsigned)(p[1] & 0x3F) << 12) | + ((unsigned)(p[2] & 0x3F) << 6) | (p[3] & 0x3F); + adv = 4; + } else { + cp = c; /* byte invalido: trattato come latin-1 */ + } + p += adv; + + char buf[16]; + switch (cp) { + case '"': db_puts(out, "\\\"", e); break; + case '\\': db_puts(out, "\\\\", e); break; + case '\n': db_puts(out, "\\n", e); break; + case '\r': db_puts(out, "\\r", e); break; + case '\t': db_puts(out, "\\t", e); break; + case '\b': db_puts(out, "\\b", e); break; + case '\f': db_puts(out, "\\f", e); break; + default: + if (cp < 0x20) { + snprintf(buf, sizeof(buf), "\\u%04x", cp); + db_puts(out, buf, e); + } else if (cp < 0x7F) { + char ch = (char)cp; + db_append(out, &ch, 1, e); + } else if (cp <= 0xFFFF) { + snprintf(buf, sizeof(buf), "\\u%04x", cp); + db_puts(out, buf, e); + } else { + unsigned int v = cp - 0x10000; + snprintf(buf, sizeof(buf), "\\u%04x\\u%04x", 0xD800 + (v >> 10), 0xDC00 + (v & 0x3FF)); + db_puts(out, buf, e); + } + break; + } + } + return db_append(out, "\"", 1, e); +} diff --git a/src/json.h b/src/json.h new file mode 100644 index 0000000..d688d13 --- /dev/null +++ b/src/json.h @@ -0,0 +1,40 @@ +/* json.h — parser JSON minimale (DOM) + escaper in stile json.dumps. + * + * Serve solo a leggere le risposte del Cellar server (/archives) e a produrre + * l'output di `scan-local --json`. Nessuna dipendenza esterna. + */ +#ifndef CELLAR_JSON_H +#define CELLAR_JSON_H + +#include "common.h" + +#include + +typedef enum { JNULL, JBOOL, JNUM, JSTR, JARR, JOBJ } jtype; + +typedef struct jval { + jtype t; + double num; /* JNUM */ + int boolean; /* JBOOL */ + char *str; /* JSTR (UTF-8, sequenze \u gia' decodificate) */ + struct jval **items; /* JARR/JOBJ: valori (per JOBJ in ordine di chiave) */ + char **keys; /* JOBJ: chiavi */ + size_t n; /* numero di elementi */ +} jval; + +/* Parsa un buffer JSON. Ritorna NULL e valorizza errbuf in caso di errore. */ +jval *json_parse(const char *s, size_t len, char *errbuf, size_t errsz); +void json_free(jval *v); + +const jval *json_obj_get(const jval *o, const char *key); +const jval *json_arr_at(const jval *a, size_t i); +size_t json_arr_len(const jval *a); +const char *json_as_str(const jval *v); /* NULL se non stringa */ +double json_as_num(const jval *v); /* 0 se non numero */ +int json_as_bool(const jval *v); +int json_is_null(const jval *v); /* 1 anche se v == NULL */ + +/* Scrive una stringa JSON con ensure_ascii=True (come json.dumps di Python). */ +int json_write_escaped(dynbuf *out, const char *s, cerror *e); + +#endif /* CELLAR_JSON_H */ diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..88de42b --- /dev/null +++ b/src/main.c @@ -0,0 +1,470 @@ +/* main.c — interfaccia a riga di comando di cellar-cli (C). + * + * Sette comandi come il client Python: list, upload, download, install, + * scan-local, wizard-upload, wizard-install. + * I messaggi di errore riproducono quelli di argparse: + * - errori del parser principale: usage a due righe + "cellar-cli: error: ..." + * - errori di un sottocomando: usage del sottocomando + "cellar-cli : error: ..." + * Exit code: 0 ok; 1 errori HTTP/rete/file; 2 errori di argomenti (usage). + */ +#include "bottle.h" +#include "common.h" +#include "config.h" +#include "fsutil.h" +#include "multipart.h" +#include "ops.h" +#include "ui.h" +#include "wizard.h" + +#include +#include +#include + +#define PROG "cellar-cli" + +/* usage del parser principale, gia' mandato a capo come fa argparse a 80 colonne */ +static const char *USAGE_MAIN = "usage: " PROG " [-h] [--server URL]\n" + " {list,upload,download,install,scan-local,wizard-upload,wizard-install} ...\n"; + +static const char *USAGE_LIST = "usage: " PROG " list [-h]\n"; + +static const char *USAGE_UPLOAD = "usage: " PROG " upload [-h] --name TEXT [--bottle-name TEXT]\n" + " [--description TEXT] [--tags TAG[,TAG\xe2\x80\xa6]]\n" + " [--arch ARCH] [--runner NAME]\n" + " [--windows-version VERSION]\n" + " file\n"; + +static const char *USAGE_DOWNLOAD = "usage: " PROG " download [-h] ID DEST\n"; + +static const char *USAGE_INSTALL = "usage: " PROG " install [-h] [--bottles-dir DIR] [--replace] BOTTLE\n"; + +static const char *USAGE_SCAN = "usage: " PROG " scan-local [-h] [--bottles-dir DIR] [--json]\n"; + +static const char *USAGE_WIZ_UP = "usage: " PROG " wizard-upload [-h] [--bottles-dir DIR]\n"; + +static const char *USAGE_WIZ_IN = "usage: " PROG " wizard-install [-h] [--bottles-dir DIR] [--replace]\n"; + +static const char *usage_for(const char *cmd) +{ + if (!cmd) + return USAGE_MAIN; + if (!strcmp(cmd, "list")) + return USAGE_LIST; + if (!strcmp(cmd, "upload")) + return USAGE_UPLOAD; + if (!strcmp(cmd, "download")) + return USAGE_DOWNLOAD; + if (!strcmp(cmd, "install")) + return USAGE_INSTALL; + if (!strcmp(cmd, "scan-local")) + return USAGE_SCAN; + if (!strcmp(cmd, "wizard-upload")) + return USAGE_WIZ_UP; + if (!strcmp(cmd, "wizard-install")) + return USAGE_WIZ_IN; + return USAGE_MAIN; +} + +/* Errore di parsing: cmd == NULL -> parser principale. Non ritorna. */ +static void cli_error(const char *cmd, const char *fmt, ...) +{ + fputs(usage_for(cmd), stderr); + if (cmd) + fprintf(stderr, PROG " %s: error: ", cmd); + else + fprintf(stderr, PROG ": error: "); + va_list ap; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fputc('\n', stderr); + exit(2); +} + +static void print_help(void) +{ + printf("usage: " PROG " [-h] [--server URL]\n" + " {list,upload,download,install,scan-local,wizard-upload,wizard-install} ...\n" + "\n" + "Cellar - command-line client for the Bottle Archive Server.\n" + "\n" + "Manage backups of Wine prefixes (Bottles) hosted on a remote server.\n" + "You can list, upload, download, and install bottle archives, or run the\n" + "interactive wizard to pick a local bottle, pack it, and upload it in one step.\n" + "\n" + "commands:\n" + " list List all archives stored on the server\n" + " upload Upload a pre-existing archive file to the server\n" + " download Download a raw archive file from the server\n" + " install Download and install a bottle into the local Bottles directory\n" + " scan-local List all Wine prefixes (bottles) found on this computer\n" + " wizard-upload Interactive wizard: pick a local bottle, pack it, upload it\n" + " wizard-install Interactive wizard: pick a remote archive and install it locally\n" + "\n" + "options:\n" + " -h, --help show this help message and exit\n" + " --server URL Base URL of the Bottle Archive Server\n" + "\n" + "examples:\n" + " " PROG " list\n" + " " PROG " --server http://brain.local:8080 list\n" + " " PROG " upload MyGame.tar.gz --name 'My Game' --tags 'gog,rpg'\n" + " " PROG " download 3 ~/Downloads/\n" + " " PROG " install 'My Game' --replace\n" + " " PROG " scan-local --json\n" + "\n" + "exit status: 0 ok, 1 HTTP/network/file error, 2 invalid arguments\n"); +} + +static int report(const cerror *e) +{ + switch (e->kind) { + case ERR_HTTP: + fprintf(stderr, "HTTP %d: %s\n", e->code, e->msg); + return 1; + case ERR_NET: + fprintf(stderr, "Connection error: %s\n", e->msg); + return 1; + case ERR_FILE: + fprintf(stderr, "File error: %s\n", e->msg); + return 1; + default: + fprintf(stderr, "%s\n", e->msg); + return 1; + } +} + +/* --------------------------------------------------------- parser opzioni */ + +typedef struct { + const char *name; /* "--name" */ + int has_value; /* 0 = flag */ + int *flag; + const char **value; +} optdef; + +/* Ritorna la prima opzione sconosciuta (da segnalare come "unrecognized + * arguments" con lo usage del parser principale, come fa argparse). */ +static const char *parse_options(int argc, char **argv, int start, const optdef *defs, size_t ndefs, + strlist *positionals) +{ + const char *unknown = NULL; + for (int i = start; i < argc; i++) { + const char *a = argv[i]; + if (!strcmp(a, "-h") || !strcmp(a, "--help")) { + print_help(); + exit(0); + } + if (a[0] == '-' && a[1] != '\0') { + const char *eq = strchr(a, '='); + size_t namelen = eq ? (size_t)(eq - a) : strlen(a); + const optdef *found = NULL; + if (a[1] == '-') { + for (size_t k = 0; k < ndefs; k++) { + if (strlen(defs[k].name) == namelen && !strncmp(defs[k].name, a, namelen)) { + found = &defs[k]; + break; + } + } + } + if (!found) { + if (!unknown) + unknown = a; + continue; + } + if (found->has_value) { + const char *value = NULL; + if (eq) { + value = eq + 1; + } else { + if (i + 1 >= argc) + cli_error(NULL, "argument %s: expected one argument", found->name); + value = argv[++i]; + } + *found->value = value; + } else { + if (found->flag) + *found->flag = 1; + } + continue; + } + strlist_add(positionals, a); + } + return unknown; +} + +static void ensure_no_extra(const char *cmd, const strlist *pos, size_t expected, const char *unknown) +{ + if (pos->n > expected) + cli_error(NULL, "unrecognized arguments: %s", pos->names[expected]); + if (unknown) + cli_error(NULL, "unrecognized arguments: %s", unknown); + (void)cmd; +} + +/* --------------------------------------------------------------- comandi */ + +static int cmd_list(const char *server, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, NULL, 0, &pos); + ensure_no_extra("list", &pos, 0, unknown); + strlist_free(&pos); + if (ops_list(server, &e) != 0) + return report(&e); + return 0; +} + +static int cmd_upload(const char *server, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + const char *name = NULL, *bottle_name = NULL, *description = NULL, *tags = NULL, *arch = NULL, + *runner = NULL, *winver = NULL; + const optdef defs[] = { + {"--name", 1, NULL, &name}, + {"--bottle-name", 1, NULL, &bottle_name}, + {"--description", 1, NULL, &description}, + {"--tags", 1, NULL, &tags}, + {"--arch", 1, NULL, &arch}, + {"--runner", 1, NULL, &runner}, + {"--windows-version", 1, NULL, &winver}, + }; + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, defs, sizeof(defs) / sizeof(defs[0]), &pos); + + if (pos.n == 0 && !name) + cli_error("upload", "the following arguments are required: file, --name"); + if (pos.n == 0) + cli_error("upload", "the following arguments are required: file"); + if (!name) + cli_error("upload", "the following arguments are required: --name"); + ensure_no_extra("upload", &pos, 1, unknown); + + mp_field fields[8]; + size_t nf = 0; + fields[nf].name = "name"; + fields[nf++].value = name; + if (bottle_name && *bottle_name) { + fields[nf].name = "bottle_name"; + fields[nf++].value = bottle_name; + } + if (description && *description) { + fields[nf].name = "description"; + fields[nf++].value = description; + } + if (tags && *tags) { + fields[nf].name = "tags"; + fields[nf++].value = tags; + } + if (arch && *arch) { + fields[nf].name = "arch"; + fields[nf++].value = arch; + } + if (runner && *runner) { + fields[nf].name = "runner"; + fields[nf++].value = runner; + } + if (winver && *winver) { + fields[nf].name = "windows_version"; + fields[nf++].value = winver; + } + + int rc = ops_upload(server, pos.names[0], fields, nf, &e); + strlist_free(&pos); + if (rc != 0) + return report(&e); + return 0; +} + +static int cmd_download(const char *server, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, NULL, 0, &pos); + if (pos.n < 2) { + strlist_free(&pos); + cli_error("download", "the following arguments are required: ID, DEST"); + } + ensure_no_extra("download", &pos, 2, unknown); + + char *end = NULL; + long long id = strtoll(pos.names[0], &end, 10); + if (!end || *end != '\0') { + char bad[256]; + snprintf(bad, sizeof(bad), "%s", pos.names[0]); + strlist_free(&pos); + cli_error("download", "argument ID: invalid int value: '%s'", bad); + } + const char *output = pos.names[1]; + int rc = ops_download(server, id, output, &e); + strlist_free(&pos); + if (rc != 0) + return report(&e); + return 0; +} + +static int cmd_install(const char *server, const char *default_dir, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + const char *bottles_dir = NULL; + int replace = 0; + const optdef defs[] = { + {"--bottles-dir", 1, NULL, &bottles_dir}, + {"--replace", 0, &replace, NULL}, + }; + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, defs, sizeof(defs) / sizeof(defs[0]), &pos); + if (pos.n == 0) { + strlist_free(&pos); + cli_error("install", "the following arguments are required: BOTTLE"); + } + ensure_no_extra("install", &pos, 1, unknown); + + int rc = ops_install(server, pos.names[0], bottles_dir ? bottles_dir : default_dir, replace, &e); + strlist_free(&pos); + if (rc < 0) + return report(&e); + return rc; /* 1 = bottiglia esistente senza --replace */ +} + +static int cmd_scan_local(const char *default_dir, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + const char *bottles_dir = NULL; + int as_json = 0; + const optdef defs[] = { + {"--bottles-dir", 1, NULL, &bottles_dir}, + {"--json", 0, &as_json, NULL}, + }; + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, defs, sizeof(defs) / sizeof(defs[0]), &pos); + ensure_no_extra("scan-local", &pos, 0, unknown); + strlist_free(&pos); + + bottle_list l; + const char *dir = bottles_dir ? bottles_dir : default_dir; + if (bottles_scan(dir, &l, &e) != 0) + return report(&e); + ui_print_local_bottles(&l, dir, as_json); + bottles_free(&l); + return 0; +} + +static int cmd_wizard_upload(const char *server, const char *default_dir, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + const char *bottles_dir = NULL; + const optdef defs[] = {{"--bottles-dir", 1, NULL, &bottles_dir}}; + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, defs, 1, &pos); + ensure_no_extra("wizard-upload", &pos, 0, unknown); + strlist_free(&pos); + if (wizard_upload(server, bottles_dir ? bottles_dir : default_dir, &e) != 0) + return report(&e); + return 0; +} + +static int cmd_wizard_install(const char *server, const char *default_dir, int argc, char **argv, int start) +{ + cerror e; + err_clear(&e); + const char *bottles_dir = NULL; + int replace = 0; + const optdef defs[] = { + {"--bottles-dir", 1, NULL, &bottles_dir}, + {"--replace", 0, &replace, NULL}, + }; + strlist pos; + strlist_init(&pos); + const char *unknown = parse_options(argc, argv, start, defs, sizeof(defs) / sizeof(defs[0]), &pos); + ensure_no_extra("wizard-install", &pos, 0, unknown); + strlist_free(&pos); + int rc = wizard_install(server, bottles_dir ? bottles_dir : default_dir, replace, &e); + if (rc < 0) + return report(&e); + return rc; +} + +/* ------------------------------------------------------------------- main */ + +int main(int argc, char **argv) +{ + cerror e; + err_clear(&e); + + cellar_conf conf; + int created = 0; + if (config_load(&conf, &created, &e) != 0) + return report(&e); + + const char *server = conf.server; + const char *bottles_dir = conf.bottles_dir; + const char *cmd = NULL; + int i = 1; + for (; i < argc; i++) { + const char *a = argv[i]; + if (!strcmp(a, "-h") || !strcmp(a, "--help")) { + print_help(); + return 0; + } + if (!strncmp(a, "--server=", 9)) { + server = a + 9; + continue; + } + if (!strcmp(a, "--server")) { + if (i + 1 >= argc) + cli_error(NULL, "argument --server: expected one argument"); + server = argv[++i]; + continue; + } + if (a[0] == '-' && a[1] != '\0') + cli_error(NULL, "unrecognized arguments: %s", a); + cmd = a; + i++; + break; + } + if (!cmd) + cli_error(NULL, "the following arguments are required: command"); + + /* il client Python fa args.server.rstrip("/") */ + char server_buf[1200]; + snprintf(server_buf, sizeof(server_buf), "%s", server); + size_t slen = strlen(server_buf); + while (slen > 0 && server_buf[slen - 1] == '/') + server_buf[--slen] = '\0'; + server = server_buf; + + if (!strcmp(cmd, "list")) + return cmd_list(server, argc, argv, i); + if (!strcmp(cmd, "upload")) + return cmd_upload(server, argc, argv, i); + if (!strcmp(cmd, "download")) + return cmd_download(server, argc, argv, i); + if (!strcmp(cmd, "install")) + return cmd_install(server, bottles_dir, argc, argv, i); + if (!strcmp(cmd, "scan-local")) + return cmd_scan_local(bottles_dir, argc, argv, i); + if (!strcmp(cmd, "wizard-upload")) + return cmd_wizard_upload(server, bottles_dir, argc, argv, i); + if (!strcmp(cmd, "wizard-install")) + return cmd_wizard_install(server, bottles_dir, argc, argv, i); + + cli_error(NULL, + "argument command: invalid choice: '%s' (choose from list, upload, download, install, " + "scan-local, wizard-upload, wizard-install)", + cmd); + return 2; +} diff --git a/src/multipart.c b/src/multipart.c new file mode 100644 index 0000000..4e6c419 --- /dev/null +++ b/src/multipart.c @@ -0,0 +1,108 @@ +/* multipart.c */ +#include "multipart.h" + +#include +#include + +#define MP_BOUNDARY "----BottleArchiveBoundary7MA4YWxkTrZu0gW" + +int multipart_init(multipart *m, const mp_field *fields, size_t nfields, const char *filepath, + const char *filename, const char *content_type, long long file_size, cerror *e) +{ + memset(m, 0, sizeof(*m)); + db_init(&m->pre); + db_init(&m->post); + snprintf(m->boundary, sizeof(m->boundary), "%s", MP_BOUNDARY); + m->filepath = filepath; + m->file_size = file_size; + + for (size_t i = 0; i < nfields; i++) { + if (db_printf(&m->pre, e, "--%s\r\n", m->boundary) != 0) + goto fail; + if (db_printf(&m->pre, e, "Content-Disposition: form-data; name=\"%s\"\r\n\r\n", + fields[i].name) != 0) + goto fail; + if (db_puts(&m->pre, fields[i].value, e) != 0) + goto fail; + if (db_puts(&m->pre, "\r\n", e) != 0) + goto fail; + } + + if (db_printf(&m->pre, e, "--%s\r\n", m->boundary) != 0) + goto fail; + if (db_printf(&m->pre, e, + "Content-Disposition: form-data; name=\"file\"; filename=\"%s\"\r\n", + filename) != 0) + goto fail; + if (db_printf(&m->pre, e, "Content-Type: %s\r\n\r\n", content_type) != 0) + goto fail; + + if (db_puts(&m->post, "\r\n", e) != 0) + goto fail; + if (db_printf(&m->post, e, "--%s--\r\n", m->boundary) != 0) + goto fail; + + m->total = (long long)m->pre.len + file_size + (long long)m->post.len; + return 0; + +fail: + multipart_free(m); + return -1; +} + +void multipart_free(multipart *m) +{ + if (m->fp) + fclose(m->fp); + db_free(&m->pre); + db_free(&m->post); + m->fp = NULL; +} + +long multipart_read(void *ctx, char *buf, size_t cap, cerror *e) +{ + multipart *m = ctx; + size_t off = 0; + + if (m->sent_pre < m->pre.len) { + size_t take = m->pre.len - m->sent_pre; + if (take > cap) + take = cap; + memcpy(buf, m->pre.data + m->sent_pre, take); + m->sent_pre += take; + off += take; + } + if (off < cap && m->sent_file < (size_t)m->file_size) { + if (!m->fp) { + m->fp = fopen(m->filepath, "rb"); + if (!m->fp) { + err_set_errno(e, ERR_FILE, "cannot read %s", m->filepath); + return -1; + } + } + size_t want = cap - off; + size_t remaining = (size_t)m->file_size - m->sent_file; + if (want > remaining) + want = remaining; + size_t n = fread(buf + off, 1, want, m->fp); + if (n == 0 && want > 0) { + if (ferror(m->fp)) { + err_set_errno(e, ERR_FILE, "read failed on %s", m->filepath); + return -1; + } + err_set(e, ERR_FILE, 0, "%s: unexpected end of file", m->filepath); + return -1; + } + m->sent_file += n; + off += n; + } + if (off < cap && m->sent_post < m->post.len) { + size_t take = m->post.len - m->sent_post; + if (take > cap - off) + take = cap - off; + memcpy(buf + off, m->post.data + m->sent_post, take); + m->sent_post += take; + off += take; + } + return (long)off; +} diff --git a/src/multipart.h b/src/multipart.h new file mode 100644 index 0000000..d38b1a7 --- /dev/null +++ b/src/multipart.h @@ -0,0 +1,39 @@ +/* multipart.h — corpo multipart/form-data in streaming. + * + * Il client Python legge l'intero archivio in RAM (file_path.read_bytes()); + * qui il file viene trasmesso a blocchi, con Content-Length calcolato prima. + */ +#ifndef CELLAR_MULTIPART_H +#define CELLAR_MULTIPART_H + +#include "common.h" + +#include + +typedef struct { + const char *name; + const char *value; +} mp_field; + +typedef struct { + char boundary[128]; + dynbuf pre; /* campi + header della parte file */ + dynbuf post; /* chiusura del boundary */ + const char *filepath; + FILE *fp; + long long file_size; + long long total; + size_t sent_pre; + size_t sent_file; + size_t sent_post; +} multipart; + +/* fields: solo i campi da inviare (i vuoti vanno omessi dal chiamante, come fa + * il client Python che salta i valori falsy). */ +int multipart_init(multipart *m, const mp_field *fields, size_t nfields, const char *filepath, + const char *filename, const char *content_type, long long file_size, cerror *e); +void multipart_free(multipart *m); +/* Callback per http_open(): produce il corpo a blocchi. */ +long multipart_read(void *ctx, char *buf, size_t cap, cerror *e); + +#endif /* CELLAR_MULTIPART_H */ diff --git a/src/ops.c b/src/ops.c new file mode 100644 index 0000000..e50c1d7 --- /dev/null +++ b/src/ops.c @@ -0,0 +1,382 @@ +/* ops.c — list/upload/download/install con i messaggi identici al client Python. */ +#include "ops.h" + +#include "fsutil.h" +#include "http.h" +#include "json.h" +#include "tar.h" +#include "ui.h" + +#include +#include +#include +#include +#include + +#ifndef PATH_MAX +#define PATH_MAX 4096 +#endif + +/* Traduce 4xx/5xx in HTTPError, come urllib.request.urlopen. */ +static int http_fail(const csresponse *r, cerror *e) +{ + if (r->status >= 400) { + const char *body = (r->body && r->body_len) ? r->body : ""; + err_set(e, ERR_HTTP, r->status, "%s", body); + return -1; + } + return 0; +} + +static char *join_url(const char *server, const char *suffix, cerror *e) +{ + size_t need = strlen(server) + strlen(suffix) + 1; + char *u = xmalloc(need, e); + if (!u) + return NULL; + snprintf(u, need, "%s%s", server, suffix); + return u; +} + +int ops_fetch_archives(const char *server, archive_list *out, cerror *e) +{ + out->items = NULL; + out->n = 0; + char *url = join_url(server, "/archives", e); + if (!url) + return -1; + csresponse resp; + int rc = http_get(url, &resp, e); + free(url); + if (rc != 0) + return -1; + if (http_fail(&resp, e) != 0) { + csresponse_free(&resp); + return -1; + } + rc = archives_parse(resp.body ? resp.body : "", resp.body_len, out, e); + csresponse_free(&resp); + return rc; +} + +int ops_list(const char *server, cerror *e) +{ + archive_list l; + if (ops_fetch_archives(server, &l, e) != 0) + return -1; + if (l.n == 0) { + printf("No archives found.\n"); + archives_free(&l); + return 0; + } + ui_print_archives_header(0); + ui_print_archives(&l, 0); + archives_free(&l); + return 0; +} + +int ops_upload(const char *server, const char *filepath, const mp_field *fields, size_t nfields, cerror *e) +{ + struct stat st; + if (stat(filepath, &st) != 0) { + err_set(e, ERR_FILE, 0, "[Errno 2] No such file or directory: '%s'", filepath); + return -1; + } + if (S_ISDIR(st.st_mode)) { + err_set(e, ERR_FILE, 0, "[Errno 21] Is a directory: '%s'", filepath); + return -1; + } + long long fsize = (long long)st.st_size; + const char *filename = path_basename(filepath); + size_t flen = strlen(filename); + const char *mime = "application/octet-stream"; + if (flen > 3 && !strcmp(filename + flen - 3, ".gz")) + mime = "application/gzip"; + else if (flen > 7 && !strcmp(filename + flen - 7, ".tar.gz")) + mime = "application/gzip"; + else if (flen > 5 && !strcmp(filename + flen - 5, ".tgz")) + mime = "application/gzip"; + + multipart mp; + if (multipart_init(&mp, fields, nfields, filepath, filename, mime, fsize, e) != 0) + return -1; + + char ctype[256]; + snprintf(ctype, sizeof(ctype), "multipart/form-data; boundary=%s", mp.boundary); + char *url = join_url(server, "/archives", e); + if (!url) { + multipart_free(&mp); + return -1; + } + + csresponse resp; + int rc = http_post(url, ctype, mp.total, multipart_read, &mp, &resp, e); + free(url); + multipart_free(&mp); + if (rc != 0) + return -1; + if (http_fail(&resp, e) != 0) { + csresponse_free(&resp); + return -1; + } + + char errbuf[256]; + jval *obj = json_parse(resp.body ? resp.body : "", resp.body_len, errbuf, sizeof(errbuf)); + if (!obj || obj->t != JOBJ) { + err_set(e, ERR_MISC, 0, "invalid JSON from server: %s", errbuf); + if (obj) + json_free(obj); + csresponse_free(&resp); + return -1; + } + long long id = (long long)json_as_num(json_obj_get(obj, "id")); + const char *name = json_as_str(json_obj_get(obj, "name")); + printf("Uploaded archive #%lld: %s\n", id, name ? name : ""); + json_free(obj); + csresponse_free(&resp); + return 0; +} + +/* Consumatore che scrive su file. */ +typedef struct { + FILE *fp; + long long written; +} file_sink; + +static int sink_write(void *ctx, const char *buf, size_t len, cerror *e) +{ + file_sink *s = ctx; + if (fwrite(buf, 1, len, s->fp) != len) { + err_set_errno(e, ERR_FILE, "write failed"); + return -1; + } + s->written += (long long)len; + return 0; +} + +/* Scarica l'archivio su dest (file gia' scelto). */ +static int download_to(const char *server, long long archive_id, const char *dest, int announce, cerror *e) +{ + char suffix[64]; + snprintf(suffix, sizeof(suffix), "/archives/%lld/download", archive_id); + char *url = join_url(server, suffix, e); + if (!url) + return -1; + chttp *c = NULL; + csresponse meta; + if (http_open(url, "GET", NULL, -1, NULL, NULL, &c, &meta, e) != 0) { + free(url); + return -1; + } + free(url); + if (meta.status >= 400) { + /* legge il corpo della risposta per riprodurre il messaggio di urllib + * ("HTTP : ") */ + cerror ce; + err_clear(&ce); + (void)http_read_body(c, NULL, NULL, &meta, &ce); + (void)http_fail(&meta, e); + http_close(c); + csresponse_free(&meta); + return -1; + } + FILE *fp = fopen(dest, "wb"); + if (!fp) { + err_set_errno(e, ERR_FILE, "cannot write %s", dest); + http_close(c); + csresponse_free(&meta); + return -1; + } + file_sink sink; + sink.fp = fp; + sink.written = 0; + int rc = http_read_body(c, sink_write, &sink, NULL, e); + if (fclose(fp) != 0 && rc == 0) { + err_set_errno(e, ERR_FILE, "cannot write %s", dest); + rc = -1; + } + http_close(c); + csresponse_free(&meta); + if (rc != 0) + return -1; + if (announce) + printf("Downloaded to %s\n", dest); + return 0; +} + +int ops_download(const char *server, long long archive_id, const char *output, cerror *e) +{ + char dest[PATH_MAX * 2]; + if (is_dir(output)) { + /* il nome viene dal Content-Disposition della risposta */ + char suffix[64]; + snprintf(suffix, sizeof(suffix), "/archives/%lld/download", archive_id); + char *url = join_url(server, suffix, e); + if (!url) + return -1; + chttp *c = NULL; + csresponse meta; + if (http_open(url, "GET", NULL, -1, NULL, NULL, &c, &meta, e) != 0) { + free(url); + return -1; + } + free(url); + if (meta.status >= 400) { + cerror ce; + err_clear(&ce); + (void)http_read_body(c, NULL, NULL, &meta, &ce); + (void)http_fail(&meta, e); + http_close(c); + csresponse_free(&meta); + return -1; + } + char *dispo = http_disposition_filename(meta.headers, e); + const char *fname = dispo; + char fallback[64]; + if (!fname) { + snprintf(fallback, sizeof(fallback), "archive-%lld.bin", archive_id); + fname = fallback; + } + if (path_join(dest, sizeof(dest), output, fname) != 0) { + free(dispo); + http_close(c); + csresponse_free(&meta); + err_set(e, ERR_FILE, 0, "destination path too long"); + return -1; + } + free(dispo); + FILE *fp = fopen(dest, "wb"); + if (!fp) { + err_set_errno(e, ERR_FILE, "cannot write %s", dest); + http_close(c); + csresponse_free(&meta); + return -1; + } + file_sink sink; + sink.fp = fp; + sink.written = 0; + int rc = http_read_body(c, sink_write, &sink, NULL, e); + if (fclose(fp) != 0 && rc == 0) { + err_set_errno(e, ERR_FILE, "cannot write %s", dest); + rc = -1; + } + http_close(c); + csresponse_free(&meta); + if (rc != 0) + return -1; + printf("Downloaded to %s\n", dest); + return 0; + } + return download_to(server, archive_id, output, 1, e); +} + +int ops_install_record(const char *server, const archive_rec *rec, const char *bottles_dir, int replace, + const char *ref, cerror *e) +{ + const char *bottle_name = rec->bottle_name; + if (!bottle_name || !*bottle_name) + bottle_name = rec->name; + if (!bottle_name || !*bottle_name) + bottle_name = ref; + if (!bottle_name || !*bottle_name) + bottle_name = "unknown-bottle"; + + char target[PATH_MAX * 2]; + if (path_join(target, sizeof(target), bottles_dir, bottle_name) != 0) { + err_set(e, ERR_FILE, 0, "target path too long"); + return -1; + } + + if (path_exists(target)) { + if (!replace) { + fprintf(stderr, "Bottle already exists: %s\nUse --replace to overwrite it.\n", target); + return 1; + } + if (rm_rf(target, e) != 0) + return -1; + } + + if (mkdir_p(bottles_dir, e) != 0) + return -1; + + char tmpdir[PATH_MAX]; + if (make_temp_dir("bottle-install-", tmpdir, sizeof(tmpdir), e) != 0) + return -1; + + int rc = -1; + char download_path[PATH_MAX * 2]; + char extract_dir[PATH_MAX * 2]; + if (snprintf(download_path, sizeof(download_path), "%s/archive-%lld.tar.gz", tmpdir, rec->id) >= + (int)sizeof(download_path) || + snprintf(extract_dir, sizeof(extract_dir), "%s/extract", tmpdir) >= (int)sizeof(extract_dir)) { + err_set(e, ERR_FILE, 0, "temporary path too long"); + goto cleanup; + } + + /* come il client Python: il download annuncia la destinazione */ + if (download_to(server, rec->id, download_path, 1, e) != 0) + goto cleanup; + + if (mkdir_p(extract_dir, e) != 0) + goto cleanup; + if (tar_extract(download_path, extract_dir, e) != 0) + goto cleanup; + + strlist subdirs; + strlist_init(&subdirs); + if (dir_list(extract_dir, 1, &subdirs, e) != 0) { + strlist_free(&subdirs); + goto cleanup; + } + if (subdirs.n == 0) { + strlist_free(&subdirs); + err_set(e, ERR_FILE, 0, "Archive did not contain a bottle directory."); + goto cleanup; + } + char source_dir[PATH_MAX * 2]; + char yml[PATH_MAX * 2]; + if (snprintf(source_dir, sizeof(source_dir), "%s/%s", extract_dir, subdirs.names[0]) >= + (int)sizeof(source_dir) || + snprintf(yml, sizeof(yml), "%s/bottle.yml", source_dir) >= (int)sizeof(yml)) { + strlist_free(&subdirs); + err_set(e, ERR_FILE, 0, "path too long"); + goto cleanup; + } + strlist_free(&subdirs); + + if (!path_exists(yml)) { + err_set(e, ERR_FILE, 0, "Archive does not look like a valid bottle backup."); + goto cleanup; + } + + if (move_path(source_dir, target, e) != 0) + goto cleanup; + + printf("Installed bottle '%s' to %s\n", bottle_name, target); + rc = 0; + +cleanup: + { + cerror ce; + err_clear(&ce); + rm_rf(tmpdir, &ce); /* TemporaryDirectory: cleanup sempre */ + } + return rc; +} + +int ops_install(const char *server, const char *ref, const char *bottles_dir, int replace, cerror *e) +{ + archive_list l; + if (ops_fetch_archives(server, &l, e) != 0) + return -1; + long idx = archives_find(&l, ref); + if (idx < 0) { + archives_free(&l); + err_set(e, ERR_FILE, 0, "No remote archive found for '%s'", ref); + return -1; + } + archive_rec rec = l.items[idx]; /* copia: liberata dopo l'uso */ + int rc = ops_install_record(server, &rec, bottles_dir, replace, ref, e); + archives_free(&l); + return rc; +} diff --git a/src/ops.h b/src/ops.h new file mode 100644 index 0000000..45935b6 --- /dev/null +++ b/src/ops.h @@ -0,0 +1,19 @@ +/* ops.h — operazioni di alto livello (list/upload/download/install). */ +#ifndef CELLAR_OPS_H +#define CELLAR_OPS_H + +#include "bottle.h" +#include "common.h" +#include "multipart.h" + +/* GET /archives + parsing. */ +int ops_fetch_archives(const char *server, archive_list *out, cerror *e); +int ops_list(const char *server, cerror *e); +int ops_upload(const char *server, const char *filepath, const mp_field *fields, size_t nfields, cerror *e); +int ops_download(const char *server, long long archive_id, const char *output, cerror *e); +/* 0 ok, 1 = bottiglia esistente senza --replace (messaggio gia' stampato). */ +int ops_install(const char *server, const char *ref, const char *bottles_dir, int replace, cerror *e); +int ops_install_record(const char *server, const archive_rec *rec, const char *bottles_dir, int replace, + const char *ref, cerror *e); + +#endif /* CELLAR_OPS_H */ diff --git a/src/tar.c b/src/tar.c new file mode 100644 index 0000000..4574caf --- /dev/null +++ b/src/tar.c @@ -0,0 +1,881 @@ +/* tar.c — writer ed extractor compatibili con Python tarfile. + * + * Writer: formato PAX (come tarfile: un header esteso per ogni membro con il + * record "mtime" frazionario), nome via campo prefix di ustar oppure record + * "path", symlink non dereferenziati, figli ordinati per nome. + * + * Reader: ustar + PAX ('x'/'g') + GNU longname/longlink ('L'/'K'), checksum + * verificato, controllo di traversal per ogni membro, ripristino di permessi e + * mtime (directory applicate alla fine, come fa tarfile). + */ +#include "tar.h" +#include "fsutil.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TAR_BLOCK 512 + +/* ============================== utils ================================== */ + +static int gz_write_full(gz_writer *gz, const char *buf, size_t len, cerror *e) +{ + return gzw_write(gz, buf, len, e); +} + +/* Scrive un blocco di 512 byte gia' preparato. */ +static int write_block(gz_writer *gz, char block[TAR_BLOCK], cerror *e) +{ + return gz_write_full(gz, block, TAR_BLOCK, e); +} + +static void put_octal(char *field, size_t width, long long value) +{ + /* width include il NUL finale: "0000644\0" */ + snprintf(field, width, "%0*llo", (int)width - 1, (unsigned long long)value); +} + +/* Record PAX: "LEN key=value\n" dove LEN conta anche se stesso. */ +static int pax_record(dynbuf *out, const char *key, const char *value, cerror *e) +{ + size_t kv = strlen(key) + 1 + strlen(value) + 1; /* key '=' value '\n' */ + size_t total = kv + 2; /* spazio + almeno 1 cifra */ + for (;;) { + char digits[24]; + int nd = snprintf(digits, sizeof(digits), "%zu", total); + if ((size_t)nd + kv + 1 == total) + break; + total = (size_t)nd + kv + 1; + } + return db_printf(out, e, "%zu %s=%s\n", total, key, value); +} + +/* mtime come lo scrive Python: secondi + frazione (max 7 cifre) senza zeri + * finali, con almeno una cifra decimale. */ +static void fmt_mtime(time_t sec, long nsec, char *out, size_t outsz) +{ + long frac = (nsec + 50) / 100; /* arrotonda ai 100 ns */ + if (frac > 9999999) + frac = 9999999; + char buf[64]; + snprintf(buf, sizeof(buf), "%lld.%07ld", (long long)sec, frac); + size_t len = strlen(buf); + while (len > 1 && buf[len - 1] == '0' && buf[len - 2] != '.') { + buf[--len] = '\0'; + } + if (len > 0 && buf[len - 1] == '.') + buf[len++] = '0'; + snprintf(out, outsz, "%s", buf); +} + +static const char *user_name(uid_t uid, char *fallback, size_t fsz) +{ + struct passwd *pw = getpwuid(uid); + if (pw && pw->pw_name) { + snprintf(fallback, fsz, "%s", pw->pw_name); + return fallback; + } + return ""; +} + +static const char *group_name(gid_t gid, char *fallback, size_t fsz) +{ + struct group *gr = getgrgid(gid); + if (gr && gr->gr_name) { + snprintf(fallback, fsz, "%s", gr->gr_name); + return fallback; + } + return ""; +} + +/* Separa il nome nel campo name (<=100) e prefix (<=155) di ustar. + * Ritorna 0 se rappresentabile, -1 se serve il record PAX "path". */ +static int split_ustar_name(const char *name, char out_name[100], char out_prefix[155]) +{ + size_t len = strlen(name); + if (len <= 100) { + memset(out_name, 0, 100); + memcpy(out_name, name, len); /* nessun NUL: il campo e' largo esattamente 100 */ + return 0; + } + /* cerca il taglio piu' a destra che lascia il suffisso <= 100 */ + for (size_t i = len; i-- > 0;) { + if (name[i] != '/') + continue; + size_t suffix = len - i - 1; + size_t prefix = i; + if (suffix > 0 && suffix <= 100 && prefix > 0 && prefix <= 155) { + memset(out_name, 0, 100); + memset(out_prefix, 0, 155); + memcpy(out_prefix, name, prefix); + memcpy(out_name, name + i + 1, suffix); + return 0; + } + } + /* non rappresentabile: mette la coda nel campo name (i lettori useranno + * il record PAX "path") */ + size_t suffix = len > 100 ? 100 : len; + memset(out_name, 0, 100); + memcpy(out_name, name + (len - suffix), suffix); + return -1; +} + +/* ============================== writer ================================= */ + +typedef struct { + /* Larghezze ESATTE del formato ustar: gli offset devono coincidere (512 byte + * in totale), quindi niente +1 per il NUL. */ + char name[100]; + char mode[8]; + char uid[8]; + char gid[8]; + char size[12]; + char mtime[12]; + char chksum[8]; + char typeflag; + char linkname[100]; + char magic[6]; + char version[2]; + char uname[32]; + char gname[32]; + char devmajor[8]; + char devminor[8]; + char prefix[155]; + char pad[12]; +} ustar_header; + +/* Garantisce che il compilatore non introduca padding. */ +typedef char ustar_header_size_check[(sizeof(ustar_header) == TAR_BLOCK) ? 1 : -1]; + +static void set_field(char *dst, size_t width, const char *src) +{ + memset(dst, 0, width); + if (!src) + return; + size_t n = strlen(src); + if (n > width) + n = width; + memcpy(dst, src, n); +} + +static void hdr_checksum(ustar_header *h) +{ + memset(h->chksum, ' ', 8); + unsigned sum = 0; + const unsigned char *p = (const unsigned char *)h; + for (size_t i = 0; i < sizeof(*h); i++) + sum += p[i]; + snprintf(h->chksum, sizeof(h->chksum), "%06o", sum); + h->chksum[6] = '\0'; + h->chksum[7] = ' '; +} + +static int write_pax_header(gz_writer *gz, const char *mtime_str, const char *path, const char *linkpath, + cerror *e) +{ + dynbuf body; + db_init(&body); + if (pax_record(&body, "mtime", mtime_str, e) != 0) + goto fail; + if (path && pax_record(&body, "path", path, e) != 0) + goto fail; + if (linkpath && pax_record(&body, "linkpath", linkpath, e) != 0) + goto fail; + + ustar_header h; + memset(&h, 0, sizeof(h)); + /* come Python: nome "././@PaxHeader", permessi 0644, owner root */ + set_field(h.name, sizeof(h.name), "././@PaxHeader"); + put_octal(h.mode, sizeof(h.mode), 0644); + put_octal(h.uid, sizeof(h.uid), 0); + put_octal(h.gid, sizeof(h.gid), 0); + put_octal(h.size, sizeof(h.size), (long long)body.len); + { + struct timespec now; + clock_gettime(CLOCK_REALTIME, &now); + put_octal(h.mtime, sizeof(h.mtime), (long long)now.tv_sec); + } + h.typeflag = 'x'; + set_field(h.magic, sizeof(h.magic), "ustar"); + set_field(h.version, sizeof(h.version), "00"); + hdr_checksum(&h); + if (write_block(gz, (char *)&h, e) != 0) + goto fail; + if (gz_write_full(gz, body.data, body.len, e) != 0) + goto fail; + size_t pad = (TAR_BLOCK - (body.len % TAR_BLOCK)) % TAR_BLOCK; + if (pad) { + char zeros[TAR_BLOCK]; + memset(zeros, 0, sizeof(zeros)); + if (gz_write_full(gz, zeros, pad, e) != 0) + goto fail; + } + db_free(&body); + return 0; +fail: + db_free(&body); + return -1; +} + +static int add_entry(gz_writer *gz, const char *fs_path, const char *arc_name, cerror *e) +{ + struct stat st; + if (lstat(fs_path, &st) != 0) { + err_set_errno(e, ERR_FILE, "cannot stat %s", fs_path); + return -1; + } + + int is_dir = S_ISDIR(st.st_mode); + int is_reg = S_ISREG(st.st_mode); + int is_lnk = S_ISLNK(st.st_mode); + if (!is_dir && !is_reg && !is_lnk) { + fprintf(stderr, "Warning: skipping special file %s\n", fs_path); + return 0; + } + + char *linkname = NULL; + if (is_lnk) { + linkname = read_symlink(fs_path, e); + if (!linkname) + return -1; + } + + char mt[64]; + fmt_mtime(st.st_mtim.tv_sec, st.st_mtim.tv_nsec, mt, sizeof(mt)); + + ustar_header h; + memset(&h, 0, sizeof(h)); + int need_pax_path = (split_ustar_name(arc_name, h.name, h.prefix) != 0); + put_octal(h.mode, sizeof(h.mode), st.st_mode & 07777); + put_octal(h.uid, sizeof(h.uid), st.st_uid); + put_octal(h.gid, sizeof(h.gid), st.st_gid); + long long size = is_reg ? (long long)st.st_size : 0; + put_octal(h.size, sizeof(h.size), size); + put_octal(h.mtime, sizeof(h.mtime), (long long)st.st_mtim.tv_sec); + h.typeflag = is_dir ? '5' : (is_lnk ? '2' : '0'); + if (is_lnk && linkname) { + if (strlen(linkname) > sizeof(h.linkname)) + set_field(h.linkname, sizeof(h.linkname), linkname + strlen(linkname) - sizeof(h.linkname)); + else + set_field(h.linkname, sizeof(h.linkname), linkname); + } + set_field(h.magic, sizeof(h.magic), "ustar"); + set_field(h.version, sizeof(h.version), "00"); + char ubuf[64], gbuf[64]; + set_field(h.uname, sizeof(h.uname), user_name(st.st_uid, ubuf, sizeof(ubuf))); + set_field(h.gname, sizeof(h.gname), group_name(st.st_gid, gbuf, sizeof(gbuf))); + hdr_checksum(&h); + + const char *pax_linkpath = (is_lnk && linkname && strlen(linkname) > 100) ? linkname : NULL; + if (write_pax_header(gz, mt, need_pax_path ? arc_name : NULL, pax_linkpath, e) != 0) { + free(linkname); + return -1; + } + + if (write_block(gz, (char *)&h, e) != 0) { + free(linkname); + return -1; + } + + if (is_reg) { + FILE *fp = fopen(fs_path, "rb"); + if (!fp) { + err_set_errno(e, ERR_FILE, "cannot read %s", fs_path); + free(linkname); + return -1; + } + char buf[65536]; + size_t n; + long long written = 0; + while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) { + if (gz_write_full(gz, buf, n, e) != 0) { + fclose(fp); + free(linkname); + return -1; + } + written += (long long)n; + } + if (ferror(fp)) { + err_set_errno(e, ERR_FILE, "read failed on %s", fs_path); + fclose(fp); + free(linkname); + return -1; + } + fclose(fp); + size_t pad = (TAR_BLOCK - ((size_t)written % TAR_BLOCK)) % TAR_BLOCK; + if (pad) { + char zeros[TAR_BLOCK]; + memset(zeros, 0, sizeof(zeros)); + if (gz_write_full(gz, zeros, pad, e) != 0) { + free(linkname); + return -1; + } + } + } + free(linkname); + + if (is_dir) { + strlist children; + strlist_init(&children); + if (dir_list(fs_path, 0, &children, e) != 0) { + strlist_free(&children); + return -1; + } + int rc = 0; + for (size_t i = 0; i < children.n && rc == 0; i++) { + char child_fs[PATH_MAX]; + char child_arc[PATH_MAX]; + if (snprintf(child_fs, sizeof(child_fs), "%s/%s", fs_path, children.names[i]) >= + (int)sizeof(child_fs) || + snprintf(child_arc, sizeof(child_arc), "%s/%s", arc_name, children.names[i]) >= + (int)sizeof(child_arc)) { + err_set(e, ERR_FILE, 0, "path too long"); + rc = -1; + break; + } + rc = add_entry(gz, child_fs, child_arc, e); + } + strlist_free(&children); + if (rc != 0) + return -1; + } + return 0; +} + +int tar_create(const char *archive_path, const char *rootpath, const char *arcname, cerror *e) +{ + gz_writer *gz = gzw_open(archive_path, e); + if (!gz) + return -1; + int rc = add_entry(gz, rootpath, arcname, e); + if (rc == 0) { + char zeros[TAR_BLOCK]; + memset(zeros, 0, sizeof(zeros)); + rc = gz_write_full(gz, zeros, sizeof(zeros), e); + if (rc == 0) + rc = gz_write_full(gz, zeros, sizeof(zeros), e); + } + if (gzw_close(gz, e) != 0) + rc = -1; + return rc; +} + +/* ============================== reader ================================= */ + +typedef struct { + gz_reader *gz; + long long remaining; /* byte non ancora letti del membro corrente */ +} tr; + +static int tr_read_exact(tr *t, void *buf, size_t len, cerror *e) +{ + char *p = buf; + size_t off = 0; + while (off < len) { + long n = gzr_read(t->gz, p + off, len - off, e); + if (n < 0) + return -1; + if (n == 0) { + err_set(e, ERR_FILE, 0, "unexpected end of tar stream"); + return -1; + } + off += (size_t)n; + } + return 0; +} + +static int tr_skip(tr *t, long long len, cerror *e) +{ + char buf[65536]; + while (len > 0) { + size_t want = (len < (long long)sizeof(buf)) ? (size_t)len : sizeof(buf); + if (tr_read_exact(t, buf, want, e) != 0) + return -1; + len -= (long long)want; + } + return 0; +} + +static long long parse_number(const char *field, size_t len) +{ + if (len == 0) + return 0; + if ((unsigned char)field[0] & 0x80) { + /* base-256 (GNU) */ + long long v = (unsigned char)field[0] & 0x7F; + for (size_t i = 1; i < len; i++) + v = (v << 8) | (unsigned char)field[i]; + return v; + } + char buf[32]; + size_t n = len < sizeof(buf) - 1 ? len : sizeof(buf) - 1; + memcpy(buf, field, n); + buf[n] = '\0'; + char *p = buf; + while (*p == ' ' || *p == '\0') + p++; + return strtoll(p, NULL, 8); +} + +static int checksum_ok(const unsigned char *block) +{ + char stored[16]; + memcpy(stored, block + 148, 8); + stored[8] = '\0'; + long want = strtol(stored, NULL, 8); + long sum = 0; + for (int i = 0; i < TAR_BLOCK; i++) { + if (i >= 148 && i < 156) + sum += ' '; + else + sum += block[i]; + } + return sum == want; +} + +static int all_zero(const unsigned char *block) +{ + for (int i = 0; i < TAR_BLOCK; i++) { + if (block[i]) + return 0; + } + return 1; +} + +/* Applica i record di un blocco PAX (gi`a letto) alle variabili indicate. */ +typedef struct { + char *path; + char *linkpath; + char *mtime; + char *size; + char *uname; + char *gname; +} pax_overrides; + +static void pax_free(pax_overrides *o) +{ + free(o->path); + free(o->linkpath); + free(o->mtime); + free(o->size); + free(o->uname); + free(o->gname); + memset(o, 0, sizeof(*o)); +} + +static int pax_parse(const char *body, size_t len, pax_overrides *o, cerror *e) +{ + size_t pos = 0; + while (pos < len) { + const char *sp = memchr(body + pos, ' ', len - pos); + if (!sp) + break; + long reclen = strtol(body + pos, NULL, 10); + if (reclen <= 0 || (size_t)reclen > len - pos) + break; + const char *kv = sp + 1; + const char *end = body + pos + reclen; + while (end > kv && (end[-1] == '\n' || end[-1] == '\0')) + end--; + const char *eq = memchr(kv, '=', (size_t)(end - kv)); + if (eq) { + size_t klen = (size_t)(eq - kv); + size_t vlen = (size_t)(end - eq - 1); + char *val = xstrndup(eq + 1, vlen, e); + if (!val) + return -1; + char **dst = NULL; + if (klen == 4 && !strncmp(kv, "path", 4)) + dst = &o->path; + else if (klen == 8 && !strncmp(kv, "linkpath", 8)) + dst = &o->linkpath; + else if (klen == 5 && !strncmp(kv, "mtime", 5)) + dst = &o->mtime; + else if (klen == 4 && !strncmp(kv, "size", 4)) + dst = &o->size; + else if (klen == 5 && !strncmp(kv, "uname", 5)) + dst = &o->uname; + else if (klen == 5 && !strncmp(kv, "gname", 5)) + dst = &o->gname; + if (dst) { + free(*dst); + *dst = val; + } else { + free(val); + } + } + pos += (size_t)reclen; + } + return 0; +} + +typedef struct { + char *path; + time_t mtime; + long nsec; + mode_t mode; +} dirfixup; + +static int apply_times(const char *path, time_t sec, long nsec, int symlink_ok) +{ + struct timespec times[2]; + times[0].tv_sec = sec; + times[0].tv_nsec = nsec; + times[1].tv_sec = sec; + times[1].tv_nsec = nsec; +#ifdef AT_SYMLINK_NOFOLLOW + int flags = symlink_ok ? AT_SYMLINK_NOFOLLOW : 0; + if (utimensat(AT_FDCWD, path, times, flags) == 0) + return 0; +#endif + if (symlink_ok) + return 0; /* mtime sui symlink non supportato: non e' un errore fatale */ + return utimensat(AT_FDCWD, path, times, 0); +} + +int tar_extract(const char *archive_path, const char *destdir, cerror *e) +{ + gz_reader *gz = gzr_open(archive_path, e); + if (!gz) + return -1; + tr t; + t.gz = gz; + t.remaining = 0; + + dirfixup *dirs = NULL; + size_t ndirs = 0, cdirs = 0; + + pax_overrides pending; /* record 'g' globali */ + memset(&pending, 0, sizeof(pending)); + pax_overrides next; + memset(&next, 0, sizeof(next)); + char *gnu_longname = NULL; + char *gnu_longlink = NULL; + int rc = 0; + + unsigned char block[TAR_BLOCK]; + for (;;) { + if (tr_read_exact(&t, block, TAR_BLOCK, e) != 0) { + rc = -1; + break; + } + if (all_zero(block)) { + /* secondo blocco zero o EOF: fine archivio */ + break; + } + if (!checksum_ok(block)) { + err_set(e, ERR_FILE, 0, "tar checksum mismatch in %s", archive_path); + rc = -1; + break; + } + + char name[101], prefix[156], linkname[101]; + memcpy(name, block, 100); + name[100] = '\0'; + memcpy(prefix, block + 345, 155); + prefix[155] = '\0'; + memcpy(linkname, block + 157, 100); + linkname[100] = '\0'; + long long size = parse_number((const char *)block + 124, 12); + long long mtime = parse_number((const char *)block + 136, 12); + long long mode = parse_number((const char *)block + 100, 8); + long long uid = parse_number((const char *)block + 108, 8); + long long gid = parse_number((const char *)block + 116, 8); + char typeflag = (char)block[156]; + (void)uid; + (void)gid; + + char full[PATH_MAX * 2]; + if (prefix[0]) + snprintf(full, sizeof(full), "%s/%s", prefix, name); + else + snprintf(full, sizeof(full), "%s", name); + + if (typeflag == 'x' || typeflag == 'g') { + char *body = xmalloc((size_t)size + 1, e); + if (!body) { + rc = -1; + break; + } + if (tr_read_exact(&t, body, (size_t)size, e) != 0) { + free(body); + rc = -1; + break; + } + body[size] = '\0'; + pax_overrides *dst = (typeflag == 'g') ? &pending : &next; + if (pax_parse(body, (size_t)size, dst, e) != 0) { + free(body); + rc = -1; + break; + } + free(body); + long long padded = (size + TAR_BLOCK - 1) / TAR_BLOCK * TAR_BLOCK; + if (tr_skip(&t, padded - size, e) != 0) { + rc = -1; + break; + } + continue; + } + if (typeflag == 'L' || typeflag == 'K') { + char *body = xmalloc((size_t)size + 1, e); + if (!body) { + rc = -1; + break; + } + if (tr_read_exact(&t, body, (size_t)size, e) != 0) { + free(body); + rc = -1; + break; + } + size_t l = (size_t)size; + while (l > 0 && body[l - 1] == '\0') + l--; + body[l] = '\0'; + if (typeflag == 'L') { + free(gnu_longname); + gnu_longname = body; + } else { + free(gnu_longlink); + gnu_longlink = body; + } + long long padded = (size + TAR_BLOCK - 1) / TAR_BLOCK * TAR_BLOCK; + if (tr_skip(&t, padded - size, e) != 0) { + rc = -1; + break; + } + continue; + } + + /* composizione del nome effettivo */ + const char *eff_name = full; + if (gnu_longname) + eff_name = gnu_longname; + else if (next.path) + eff_name = next.path; + + const char *eff_link = linkname; + if (gnu_longlink) + eff_link = gnu_longlink; + else if (next.linkpath) + eff_link = next.linkpath; + + if (next.mtime) + mtime = (long long)strtod(next.mtime, NULL); + long nsec = 0; + if (next.mtime) { + double frac = strtod(next.mtime, NULL); + double ipart = (double)(long long)frac; + nsec = (long)((frac - ipart) * 1e9); + if (nsec < 0) + nsec = 0; + } + if (next.size) + size = (long long)strtoll(next.size, NULL, 10); + + long long body_padded = (size + TAR_BLOCK - 1) / TAR_BLOCK * TAR_BLOCK; + + /* controllo di traversal prima di toccare il filesystem */ + char target[PATH_MAX * 2]; + if (path_normalize_inside(destdir, eff_name, target, sizeof(target)) != 0) { + err_set(e, ERR_FILE, 0, "Unsafe archive path detected."); + rc = -1; + break; + } + /* se il nome normalizzato non resta sotto destdir -> unsafe */ + size_t dlen = strlen(destdir); + if (strncmp(target, destdir, dlen) != 0) { + err_set(e, ERR_FILE, 0, "Unsafe archive path detected."); + rc = -1; + break; + } + + int is_dir = (typeflag == '5' || (eff_name[strlen(eff_name) - 1] == '/' && typeflag == '0')); + int is_reg = (typeflag == '0' || typeflag == '\0'); + int is_lnk = (typeflag == '2'); + int is_hard = (typeflag == '1'); + int is_fifo = (typeflag == '6'); + + if (is_dir) { + if (mkdir_p(target, e) != 0) { + rc = -1; + break; + } + if (cdirs == ndirs) { + size_t ncap = cdirs ? cdirs * 2 : 16; + dirfixup *nd = xrealloc(dirs, ncap * sizeof(*nd), e); + if (!nd) { + rc = -1; + break; + } + dirs = nd; + cdirs = ncap; + } + dirs[ndirs].path = xstrdup(target, e); + if (!dirs[ndirs].path) { + rc = -1; + break; + } + dirs[ndirs].mtime = (time_t)mtime; + dirs[ndirs].nsec = nsec; + dirs[ndirs].mode = (mode_t)(mode & 07777); + ndirs++; + } else if (is_reg) { + char parent[PATH_MAX * 2]; + snprintf(parent, sizeof(parent), "%s", target); + char *slash = strrchr(parent, '/'); + if (slash) { + *slash = '\0'; + if (mkdir_p(parent, e) != 0) { + rc = -1; + break; + } + } + int fd = open(target, O_WRONLY | O_CREAT | O_TRUNC, (mode_t)(mode & 07777)); + if (fd < 0) { + err_set_errno(e, ERR_FILE, "cannot create %s", target); + rc = -1; + break; + } + long long left = size; + char buf[65536]; + while (left > 0) { + size_t want = (left < (long long)sizeof(buf)) ? (size_t)left : sizeof(buf); + if (tr_read_exact(&t, buf, want, e) != 0) { + close(fd); + rc = -1; + break; + } + size_t off = 0; + while (off < want) { + ssize_t w = write(fd, buf + off, want - off); + if (w < 0) { + if (errno == EINTR) + continue; + err_set_errno(e, ERR_FILE, "write failed on %s", target); + close(fd); + rc = -1; + break; + } + off += (size_t)w; + } + if (rc != 0) + break; + left -= (long long)want; + } + close(fd); + if (rc != 0) + break; + (void)chmod(target, (mode_t)(mode & 07777)); + apply_times(target, (time_t)mtime, nsec, 0); + } else if (is_lnk) { + char parent[PATH_MAX * 2]; + snprintf(parent, sizeof(parent), "%s", target); + char *slash = strrchr(parent, '/'); + if (slash) { + *slash = '\0'; + if (mkdir_p(parent, e) != 0) { + rc = -1; + break; + } + } + if (path_exists(target)) + (void)unlink(target); + if (symlink(eff_link, target) != 0) { + err_set_errno(e, ERR_FILE, "cannot create symlink %s", target); + rc = -1; + break; + } + /* NB: tarfile di Python applica chmod/utime solo ai membri non + * symlink ("if not tarinfo.issym()"), quindi il mtime del symlink + * resta quello del momento dell'estrazione: parita' fedele. */ + } else if (is_hard) { + char linktarget[PATH_MAX * 2]; + if (path_normalize_inside(destdir, eff_link, linktarget, sizeof(linktarget)) != 0) { + err_set(e, ERR_FILE, 0, "Unsafe archive path detected."); + rc = -1; + break; + } + if (link(linktarget, target) != 0) { + /* fallback: copia il contenuto se il link non e' possibile */ + FILE *in = fopen(linktarget, "rb"); + if (!in) { + err_set_errno(e, ERR_FILE, "cannot create hardlink %s", target); + rc = -1; + break; + } + FILE *out = fopen(target, "wb"); + if (!out) { + err_set_errno(e, ERR_FILE, "cannot create %s", target); + fclose(in); + rc = -1; + break; + } + char buf[65536]; + size_t n; + while ((n = fread(buf, 1, sizeof(buf), in)) > 0) + fwrite(buf, 1, n, out); + fclose(in); + fclose(out); + } + apply_times(target, (time_t)mtime, nsec, 0); + } else if (is_fifo) { +#ifdef S_IFIFO + if (mkfifo(target, (mode_t)(mode & 07777)) != 0) { + err_set_errno(e, ERR_FILE, "cannot create fifo %s", target); + rc = -1; + break; + } +#else + fprintf(stderr, "Warning: skipping fifo %s\n", target); +#endif + } else { + fprintf(stderr, "Warning: skipping unsupported tar entry type '%c' (%s)\n", typeflag, eff_name); + } + + if (!is_reg) { + if (tr_skip(&t, body_padded, e) != 0) { + rc = -1; + break; + } + } else if (body_padded > size) { + if (tr_skip(&t, body_padded - size, e) != 0) { + rc = -1; + break; + } + } + + /* gli override valgono per un solo membro */ + pax_free(&next); + free(gnu_longname); + gnu_longname = NULL; + free(gnu_longlink); + gnu_longlink = NULL; + } + + /* mtime/permessi delle directory, dall'ultima alla prima (come tarfile) */ + while (rc == 0 && ndirs > 0) { + dirfixup *d = &dirs[--ndirs]; + (void)chmod(d->path, d->mode); + apply_times(d->path, d->mtime, d->nsec, 0); + free(d->path); + } + for (size_t i = 0; i < ndirs; i++) + free(dirs[i].path); + free(dirs); + pax_free(&pending); + pax_free(&next); + free(gnu_longname); + free(gnu_longlink); + gzr_close(gz); + return rc; +} diff --git a/src/tar.h b/src/tar.h new file mode 100644 index 0000000..227db05 --- /dev/null +++ b/src/tar.h @@ -0,0 +1,19 @@ +/* tar.h — tar writer (ustar+PAX come tarfile di Python) e extractor sicuro. */ +#ifndef CELLAR_TAR_H +#define CELLAR_TAR_H + +#include "common.h" +#include "gzip.h" + +/* Crea un archivio tar.gz con la stessa struttura prodotta da + * tarfile.open(path, "w:gz").add(rootpath, arcname=arcname) + * (entry della radice, figli ordinati per nome, symlink non dereferenziati, + * header PAX con mtime frazionario). */ +int tar_create(const char *archive_path, const char *rootpath, const char *arcname, cerror *e); + +/* Estrae un tar(.gz) nella directory indicata applicando lo stesso controllo + * di path traversal di cellar-cli.py e la stessa semantica "fully_trusted" + * (symlink/hardlink preservati, permessi e mtime ripristinati). */ +int tar_extract(const char *archive_path, const char *destdir, cerror *e); + +#endif /* CELLAR_TAR_H */ diff --git a/src/ui.c b/src/ui.c new file mode 100644 index 0000000..848c17e --- /dev/null +++ b/src/ui.c @@ -0,0 +1,167 @@ +/* ui.c */ +#include "ui.h" +#include "json.h" + +#include +#include + +/* Stampa s troncata a maxchars code point e riempita a width code point. */ +static void cell(const char *s, size_t maxchars, size_t width) +{ + if (!s) + s = ""; + size_t chars = utf8_count(s); + if (maxchars && chars > maxchars) + chars = maxchars; + size_t bytes = utf8_prefix_bytes(s, chars); + if (bytes) + fwrite(s, 1, bytes, stdout); + for (size_t i = chars; i < width; i++) + putchar(' '); +} + +static double size_mb(long long bytes) +{ + return (double)bytes / (1024.0 * 1024.0); +} + +static const char *or_dash(const char *s) +{ + return (s && *s) ? s : "-"; +} + +void ui_print_archives_header(int with_index) +{ + if (with_index) { + cell("#", 0, 4); + putchar(' '); + cell("ID", 0, 4); + putchar(' '); + cell("Name", 0, 30); + putchar(' '); + cell("Bottle", 0, 30); + putchar(' '); + cell("Arch", 0, 8); + putchar(' '); + cell("Runner", 0, 18); + putchar(' '); + printf("%10s", "Size(MB)"); + putchar('\n'); + for (int i = 0; i < 114; i++) + putchar('-'); + putchar('\n'); + } else { + cell("ID", 0, 4); + putchar(' '); + cell("Name", 0, 30); + putchar(' '); + cell("Bottle", 0, 30); + putchar(' '); + cell("Arch", 0, 8); + putchar(' '); + cell("Runner", 0, 18); + putchar(' '); + printf("%10s", "Size(MB)"); + putchar('\n'); + for (int i = 0; i < 110; i++) + putchar('-'); + putchar('\n'); + } +} + +void ui_print_archives(const archive_list *l, int with_index) +{ + for (size_t i = 0; i < l->n; i++) { + const archive_rec *r = &l->items[i]; + if (with_index) { + char idx[32]; + snprintf(idx, sizeof(idx), "%zu", i + 1); + cell(idx, 0, 4); + putchar(' '); + } + char id[32]; + snprintf(id, sizeof(id), "%lld", r->id); + cell(id, 0, 4); + putchar(' '); + cell(or_dash(r->name), 30, 30); + putchar(' '); + cell(or_dash(r->bottle_name), 30, 30); + putchar(' '); + cell(or_dash(r->arch), 0, 8); + putchar(' '); + cell(or_dash(r->runner), 18, 18); + putchar(' '); + printf("%10.2f", size_mb(r->size_bytes)); + putchar('\n'); + } +} + +void ui_print_local_bottles(const bottle_list *l, const char *bottles_dir, int as_json) +{ + if (as_json) { + /* json.dumps(bottles, indent=2): ensure_ascii -> \uXXXX per non-ASCII */ + cerror e; + err_clear(&e); + dynbuf b; + db_init(&b); + if (l->n == 0) { + printf("[]\n"); + db_free(&b); + return; + } + db_puts(&b, "[\n", &e); + for (size_t i = 0; i < l->n; i++) { + const bottle_rec *r = &l->items[i]; + db_puts(&b, " {\n", &e); + const char *keys[7] = {"name", "directory", "path", "arch", "runner", "environment", "windows"}; + const char *vals[7] = {r->name, r->directory, r->path, r->arch, r->runner, r->environment, r->windows}; + for (int k = 0; k < 7; k++) { + db_printf(&b, &e, " \"%s\": ", keys[k]); + json_write_escaped(&b, vals[k] ? vals[k] : "", &e); + db_puts(&b, (k == 6) ? "\n" : ",\n", &e); + } + db_puts(&b, (i + 1 == l->n) ? " }\n" : " },\n", &e); + } + db_puts(&b, "]", &e); + if (b.data) + printf("%s\n", b.data); + db_free(&b); + return; + } + + if (l->n == 0) { + printf("No local bottles found in %s\n", bottles_dir); + return; + } + printf("Local Bottles directory: %s\n", bottles_dir); + cell("Dir", 0, 24); + putchar(' '); + cell("Name", 0, 28); + putchar(' '); + cell("Arch", 0, 8); + putchar(' '); + cell("Runner", 0, 18); + putchar(' '); + cell("Env", 0, 12); + putchar(' '); + cell("Windows", 0, 10); + putchar('\n'); + for (int i = 0; i < 110; i++) + putchar('-'); + putchar('\n'); + for (size_t i = 0; i < l->n; i++) { + const bottle_rec *r = &l->items[i]; + cell(r->directory, 24, 24); + putchar(' '); + cell(r->name, 0, 28); + putchar(' '); + cell(r->arch, 0, 8); + putchar(' '); + cell(r->runner, 18, 18); + putchar(' '); + cell(r->environment, 12, 12); + putchar(' '); + cell(r->windows, 10, 10); + putchar('\n'); + } +} diff --git a/src/ui.h b/src/ui.h new file mode 100644 index 0000000..40e94c6 --- /dev/null +++ b/src/ui.h @@ -0,0 +1,15 @@ +/* ui.h — output a tabella e JSON, con larghezze misurate in code point come le + * f-string di Python ({s:<30}, {s[:30]}). */ +#ifndef CELLAR_UI_H +#define CELLAR_UI_H + +#include "bottle.h" + +/* Tabella di `list` (with_index=0) o di `wizard-install` (with_index=1). */ +void ui_print_archives(const archive_list *l, int with_index); +void ui_print_archives_header(int with_index); + +/* Tabella di `scan-local`, oppure array JSON con indent=2 e ensure_ascii. */ +void ui_print_local_bottles(const bottle_list *l, const char *bottles_dir, int as_json); + +#endif /* CELLAR_UI_H */ diff --git a/src/wizard.c b/src/wizard.c new file mode 100644 index 0000000..ff27359 --- /dev/null +++ b/src/wizard.c @@ -0,0 +1,214 @@ +/* wizard.c — wizard interattivi equivalenti a wizard_upload/wizard_install. */ +#include "wizard.h" + +#include "bottle.h" +#include "multipart.h" +#include "ops.h" +#include "ui.h" + +#include +#include +#include +#include + +/* input() di Python: prompt senza newline, riga letta e .strip(). + * Ritorna 0 se ha letto una riga, -1 su EOF (input() solleverebbe EOFError). */ +static int read_answer(const char *prompt, char *out, size_t outsz) +{ + fputs(prompt, stdout); + fflush(stdout); + out[0] = '\0'; + if (!fgets(out, (int)outsz, stdin)) + return -1; + size_t len = strlen(out); + while (len > 0 && (out[len - 1] == '\n' || out[len - 1] == '\r' || out[len - 1] == ' ' || + out[len - 1] == '\t')) + out[--len] = '\0'; + size_t start = 0; + while (out[start] == ' ' || out[start] == '\t') + start++; + if (start) + memmove(out, out + start, strlen(out + start) + 1); + return 0; +} + +/* Su EOF: come il client Python (EOFError non gestita) il programma termina + * con errore, invece di restare in un ciclo di input infinito. */ +static void eof_abort(void) +{ + fputc('\n', stdout); + fprintf(stderr, "EOFError: EOF when reading a line\n"); + exit(1); +} + +static void prompt_text(const char *label, const char *def, char *out, size_t outsz) +{ + char buf[4096]; + char prompt[512]; + snprintf(prompt, sizeof(prompt), "%s [%s]: ", label, def ? def : ""); + /* su EOF si applica il default: il wizard resta usabile da script che + * forniscono solo le risposte obbligatorie */ + (void)read_answer(prompt, buf, sizeof(buf)); + snprintf(out, outsz, "%s", buf[0] ? buf : (def ? def : "")); +} + +/* int(raw) di Python: solo interi decimali (con segno). */ +static int parse_int(const char *s, long *out) +{ + if (!*s) + return -1; + char *end = NULL; + long v = strtol(s, &end, 10); + if (!end || *end != '\0') + return -1; + *out = v; + return 0; +} + +static const bottle_rec *choose_bottle(const bottle_list *l, cerror *e) +{ + printf("Available local bottles:\n"); + for (size_t i = 0; i < l->n; i++) { + const bottle_rec *b = &l->items[i]; + printf(" %zu. %s (arch=%s, runner=%s, windows=%s)\n", i + 1, b->directory, b->arch, b->runner, + b->windows); + } + for (;;) { + char buf[128]; + if (read_answer("Select a bottle number: ", buf, sizeof(buf)) != 0) + eof_abort(); + long v; + if (parse_int(buf, &v) != 0) { + printf("Please enter a valid number.\n"); + continue; + } + if (v >= 1 && (size_t)v <= l->n) + return &l->items[v - 1]; + printf("Choice out of range.\n"); + } + (void)e; +} + +int wizard_upload(const char *server, const char *bottles_dir, cerror *e) +{ + bottle_list l; + if (bottles_scan(bottles_dir, &l, e) != 0) + return -1; + if (l.n == 0) { + printf("No local bottles found in %s\n", bottles_dir); + bottles_free(&l); + return 0; + } + + const bottle_rec *b = choose_bottle(&l, e); + + char display_name[4096], bottle_name[4096], description[4096], tags[4096]; + prompt_text("Archive name", b->name, display_name, sizeof(display_name)); + prompt_text("Bottle name", b->directory, bottle_name, sizeof(bottle_name)); + char desc_default[4200]; + snprintf(desc_default, sizeof(desc_default), "Backup of %s", b->name ? b->name : b->directory); + prompt_text("Description", desc_default, description, sizeof(description)); + prompt_text("Tags", "bottles,backup", tags, sizeof(tags)); + + printf("\nCreating backup for %s...\n", b->directory); + char archive_path[8192]; + if (bottle_backup(b, NULL, archive_path, sizeof(archive_path), e) != 0) { + bottles_free(&l); + return -1; + } + printf("Backup created: %s\n", archive_path); + + mp_field fields[8]; + size_t nf = 0; + fields[nf].name = "name"; + fields[nf++].value = display_name; + if (*bottle_name) { + fields[nf].name = "bottle_name"; + fields[nf++].value = bottle_name; + } + if (*description) { + fields[nf].name = "description"; + fields[nf++].value = description; + } + if (*tags) { + fields[nf].name = "tags"; + fields[nf++].value = tags; + } + if (b->arch && *b->arch) { + fields[nf].name = "arch"; + fields[nf++].value = b->arch; + } + if (b->runner && *b->runner) { + fields[nf].name = "runner"; + fields[nf++].value = b->runner; + } + if (b->windows && *b->windows) { + fields[nf].name = "windows_version"; + fields[nf++].value = b->windows; + } + + int rc = ops_upload(server, archive_path, fields, nf, e); + + /* il file temporaneo viene sempre rimosso (finally del client Python) */ + if (unlink(archive_path) != 0) { + /* non fatale */ + } + bottles_free(&l); + return rc; +} + +int wizard_install(const char *server, const char *bottles_dir, int replace, cerror *e) +{ + archive_list l; + if (ops_fetch_archives(server, &l, e) != 0) + return -1; + if (l.n == 0) { + printf("No archives found on the server.\n"); + archives_free(&l); + return 0; + } + + ui_print_archives_header(1); + ui_print_archives(&l, 1); + + const archive_rec *chosen = NULL; + for (;;) { + char buf[128]; + if (read_answer("\nSelect an archive number: ", buf, sizeof(buf)) != 0) + eof_abort(); + long v; + if (parse_int(buf, &v) != 0) { + printf("Please enter a valid number.\n"); + continue; + } + if (v >= 1 && (size_t)v <= l.n) { + chosen = &l.items[v - 1]; + break; + } + printf("Choice out of range.\n"); + } + + if (!replace) { + const char *bname = chosen->bottle_name && *chosen->bottle_name ? chosen->bottle_name : chosen->name; + if (!bname || !*bname) + bname = "unknown"; + char target[8192]; + if (path_join(target, sizeof(target), bottles_dir, bname) == 0 && path_exists(target)) { + char prompt[8400]; + snprintf(prompt, sizeof(prompt), "Bottle '%s' already exists at %s. Replace? [y/N]: ", bname, + target); + char answer[64]; + if (read_answer(prompt, answer, sizeof(answer)) != 0) + eof_abort(); + for (char *p = answer; *p; p++) + if (*p >= 'A' && *p <= 'Z') + *p = (char)(*p - 'A' + 'a'); + replace = (!strcmp(answer, "y") || !strcmp(answer, "yes")); + } + } + + archive_rec rec = *chosen; + int rc = ops_install_record(server, &rec, bottles_dir, replace, NULL, e); + archives_free(&l); + return rc; +} diff --git a/src/wizard.h b/src/wizard.h new file mode 100644 index 0000000..0ec779a --- /dev/null +++ b/src/wizard.h @@ -0,0 +1,10 @@ +/* wizard.h — flussi interattivi (wizard-upload / wizard-install). */ +#ifndef CELLAR_WIZARD_H +#define CELLAR_WIZARD_H + +#include "common.h" + +int wizard_upload(const char *server, const char *bottles_dir, cerror *e); +int wizard_install(const char *server, const char *bottles_dir, int replace, cerror *e); + +#endif /* CELLAR_WIZARD_H */ diff --git a/tests/compare_trees.py b/tests/compare_trees.py new file mode 100755 index 0000000..d5fa4fa --- /dev/null +++ b/tests/compare_trees.py @@ -0,0 +1,74 @@ +#!/usr/bin/env python3 +"""Confronta due alberi di directory: tipo, permessi, dimensione, target dei +symlink (esatti) e mtime (con tolleranza), piu' il contenuto dei file regolari. + +Uso: compare_trees.py [--mtimes] [--tolerance 1e-5] +""" +from __future__ import annotations + +import argparse +import hashlib +import os +import stat +import sys + + +def walk(root: str): + out = {} + for dirpath, dirnames, filenames in os.walk(root): + dirnames.sort() + for name in sorted(filenames) + sorted(dirnames): + full = os.path.join(dirpath, name) + rel = os.path.relpath(full, root) + st = os.lstat(full) + kind = "d" if stat.S_ISDIR(st.st_mode) else ("l" if stat.S_ISLNK(st.st_mode) else "f") + digest = "-" + if kind == "f": + with open(full, "rb") as fh: + digest = hashlib.sha256(fh.read()).hexdigest()[:16] + out[rel] = { + "kind": kind, + "mode": stat.S_IMODE(st.st_mode), + "size": st.st_size, + "mtime": st.st_mtime, + "link": os.readlink(full) if kind == "l" else "-", + "sha": digest, + } + return out + + +def main() -> int: + ap = argparse.ArgumentParser() + ap.add_argument("a") + ap.add_argument("b") + ap.add_argument("--mtimes", action="store_true", help="confronta anche i mtime") + ap.add_argument("--tolerance", type=float, default=1e-5) + args = ap.parse_args() + + a, b = walk(args.a), walk(args.b) + ok = True + for key in sorted(set(a) | set(b)): + if key not in a: + print(f"SOLO IN B: {key}") + ok = False + continue + if key not in b: + print(f"SOLO IN A: {key}") + ok = False + continue + x, y = a[key], b[key] + for field in ("kind", "mode", "size", "link", "sha"): + if x[field] != y[field]: + print(f"DIFF {key}: {field} A={x[field]} B={y[field]}") + ok = False + if args.mtimes and x["kind"] != "l" and abs(x["mtime"] - y["mtime"]) > args.tolerance: + print(f"DIFF {key}: mtime A={x['mtime']:.7f} B={y['mtime']:.7f}") + ok = False + print("alberi identici" if ok else "alberi DIVERSI") + print("(mtime dei symlink non confrontati: tarfile di Python non li applica,") + print(" quindi valgono sempre l'istante dell'estrazione)") + return 0 if ok else 1 + + +if __name__ == "__main__": + raise SystemExit(main()) diff --git a/tests/make_fake_bottle.sh b/tests/make_fake_bottle.sh new file mode 100755 index 0000000..dd06cc4 --- /dev/null +++ b/tests/make_fake_bottle.sh @@ -0,0 +1,44 @@ +#!/usr/bin/env bash +# Crea una bottiglia finta con i casi difficili: symlink (anche rotto), nomi +# lunghi (>100 char, per i record PAX "path"), UTF-8, spazi/apici, permessi +# insoliti e mtime fissi. +set -euo pipefail + +dir="${1:?uso: make_fake_bottle.sh }" +bottle="$dir/Fake Bottle" +rm -rf "$bottle" +mkdir -p "$bottle/drive_c/Program Files/Game" "$bottle/dosdevices" + +cat > "$bottle/bottle.yml" <<'YML' +Name: 'Fake Bottle' +Runner: soda-9.0-1 +Arch: win32 +Windows: win10 +Environment: Gaming +YML + +printf 'hello world\n' > "$bottle/drive_c/Program Files/Game/game.exe" +printf 'config\n' > "$bottle/drive_c/config.ini" +printf 'binario\n' > "$bottle/drive_c/program" +head -c 4096 /dev/urandom > "$bottle/drive_c/blob.bin" +printf 'unicode\n' > "$bottle/drive_c/perché.txt" + +longname="$bottle/drive_c/$(python3 -c 'print("a"*110)').txt" +printf 'long path\n' > "$longname" + +mkdir -p "$bottle/nested/deep/deeper" +printf 'deep\n' > "$bottle/nested/deep/deeper/file.txt" + +ln -s "config.ini" "$bottle/drive_c/link_to_config" +ln -s "/nonexistent/target" "$bottle/drive_c/broken_link" +ln -s "../drive_c/config.ini" "$bottle/dosdevices/c_drive" + +chmod 750 "$bottle/nested" +chmod 600 "$bottle/drive_c/config.ini" +chmod 755 "$bottle/drive_c/program" + +# mtime fissi (con frazione) per verificare i record PAX mtime +touch -d '2026-03-14 01:12:37.123456789' "$bottle/drive_c/config.ini" +touch -d '2020-01-02 03:04:05' "$bottle/bottle.yml" + +echo "$bottle" diff --git a/tests/mock_server.py b/tests/mock_server.py new file mode 100755 index 0000000..3c21718 --- /dev/null +++ b/tests/mock_server.py @@ -0,0 +1,191 @@ +#!/usr/bin/env python3 +"""Server Cellar minimale per i test di parita' (solo stdlib). + +Riproduce i comportamenti del server FastAPI di Cellar: + GET /health -> {"status":"ok"} + GET /archives -> [ArchiveRead, ...] (per created_at desc) + POST /archives -> 201 ArchiveRead (multipart/form-data) + GET /archives/{id} -> ArchiveRead | 404 + GET /archives/{id}/download -> FileResponse con Content-Disposition + DELETE /archives/{id} -> 204 + +Uso: mock_server.py --port 18099 --state /tmp/cellar-state +""" +from __future__ import annotations + +import argparse +import hashlib +import json +import os +import re +import threading +from datetime import datetime, timezone +from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer +from pathlib import Path + + +class State: + def __init__(self, root: Path): + self.root = root + self.storage = root / "storage" + self.db = root / "db.json" + self.lock = threading.Lock() + self.storage.mkdir(parents=True, exist_ok=True) + if not self.db.exists(): + self.db.write_text("[]") + + def load(self): + with self.lock: + return json.loads(self.db.read_text()) + + def save(self, rows): + with self.lock: + self.db.write_text(json.dumps(rows, indent=2)) + + def next_id(self, rows): + return max([r["id"] for r in rows], default=0) + 1 + + +def parse_multipart(body: bytes, content_type: str): + m = re.search(r'boundary="?([^";]+)"?', content_type or "") + if not m: + return {}, None + boundary = ("--" + m.group(1)).encode() + fields, file_part = {}, None + for chunk in body.split(boundary): + if not chunk or chunk in (b"--", b"--\r\n", b"\r\n"): + continue + chunk = chunk.strip(b"\r\n") + if not chunk: + continue + head, _, data = chunk.partition(b"\r\n\r\n") + headers = head.decode("utf-8", "replace") + nm = re.search(r'name="([^"]*)"', headers) + if not nm: + continue + name = nm.group(1) + fn = re.search(r'filename="([^"]*)"', headers) + ct = re.search(r"Content-Type:\s*([^\r\n]+)", headers, re.I) + if fn: + file_part = (fn.group(1), data, (ct.group(1).strip() if ct else None)) + else: + fields[name] = data.decode("utf-8", "replace") + return fields, file_part + + +class Handler(BaseHTTPRequestHandler): + state: State + protocol_version = "HTTP/1.1" + + def log_message(self, *args): # silenzioso + pass + + def _json(self, code: int, payload): + data = json.dumps(payload).encode() + self.send_response(code) + self.send_header("Content-Type", "application/json") + self.send_header("Content-Length", str(len(data))) + self.end_headers() + self.wfile.write(data) + + def _body(self) -> bytes: + length = int(self.headers.get("Content-Length") or 0) + return self.rfile.read(length) if length else b"" + + def do_GET(self): + path = self.path.split("?")[0] + if path == "/health": + return self._json(200, {"status": "ok"}) + if path == "/archives": + return self._json(200, self.state.load()) + m = re.fullmatch(r"/archives/(\d+)", path) + if m: + rows = self.state.load() + for r in rows: + if r["id"] == int(m.group(1)): + return self._json(200, r) + return self._json(404, {"detail": "Archive not found."}) + m = re.fullmatch(r"/archives/(\d+)/download", path) + if m: + rows = self.state.load() + for r in rows: + if r["id"] == int(m.group(1)): + f = self.state.storage / r["stored_name"] + if not f.exists(): + return self._json(404, {"detail": "Stored file not found."}) + data = f.read_bytes() + self.send_response(200) + self.send_header("Content-Type", r.get("content_type") or "application/octet-stream") + self.send_header("Content-Disposition", f'attachment; filename="{r["file_name"]}"') + self.send_header("Content-Length", str(len(data))) + self.end_headers() + return self.wfile.write(data) + return self._json(404, {"detail": "Archive not found."}) + if path == "/openapi.json": + return self._json(200, {"info": {"title": "Bottle Archive Server", "version": "0.1.0"}}) + return self._json(404, {"detail": "Not Found"}) + + def do_DELETE(self): + m = re.fullmatch(r"/archives/(\d+)", self.path) + if not m: + return self._json(404, {"detail": "Not Found"}) + rows = self.state.load() + keep = [r for r in rows if r["id"] != int(m.group(1))] + if len(keep) == len(rows): + return self._json(404, {"detail": "Archive not found."}) + self.state.save(keep) + self.send_response(204) + self.send_header("Content-Length", "0") + self.end_headers() + + def do_POST(self): + if self.path != "/archives": + return self._json(404, {"detail": "Not Found"}) + body = self._body() + fields, file_part = parse_multipart(body, self.headers.get("Content-Type", "")) + if not file_part: + return self._json(422, {"detail": [{"loc": ["body", "file"], "msg": "field required"}]}) + if "name" not in fields: + return self._json(422, {"detail": [{"loc": ["body", "name"], "msg": "field required"}]}) + filename, data, ctype = file_part + if not filename: + return self._json(400, {"detail": "Uploaded file must have a filename."}) + digest = hashlib.sha256(data).hexdigest() + stored = digest[:32] + ".tar.gz" + (self.state.storage / stored).write_bytes(data) + rows = self.state.load() + rec = { + "name": fields["name"], + "bottle_name": fields.get("bottle_name"), + "description": fields.get("description"), + "tags": fields.get("tags"), + "arch": fields.get("arch"), + "runner": fields.get("runner"), + "windows_version": fields.get("windows_version"), + "id": self.state.next_id(rows), + "file_name": filename, + "stored_name": stored, + "content_type": ctype, + "size_bytes": len(data), + "sha256": digest, + "created_at": datetime.now(timezone.utc).isoformat(), + } + rows.append(rec) + # come il server reale: ordinamento per created_at desc + rows.sort(key=lambda r: r["created_at"], reverse=True) + self.state.save(rows) + return self._json(201, rec) + + +def main(): + ap = argparse.ArgumentParser() + ap.add_argument("--port", type=int, default=18099) + ap.add_argument("--state", required=True) + args = ap.parse_args() + Handler.state = State(Path(args.state)) + srv = ThreadingHTTPServer(("127.0.0.1", args.port), Handler) + srv.serve_forever() + + +if __name__ == "__main__": + main() diff --git a/tests/parity_test.sh b/tests/parity_test.sh new file mode 100755 index 0000000..2716538 --- /dev/null +++ b/tests/parity_test.sh @@ -0,0 +1,252 @@ +#!/usr/bin/env bash +# Test di parita' fra il client C e il client Python, su due server mock +# indipendenti (stesso stato iniziale) cosi' che gli ID coincidano. +# +# C_BIN=dist/cellar-cli-asan tests/parity_test.sh +# C_BIN=dist/cellar-cli tests/parity_test.sh +set -uo pipefail + +ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd) +C_BIN="${C_BIN:-$ROOT/dist/cellar-cli-asan}" +PY="${PYTHON:-python3}" +PY_CLIENT="${PY_CLIENT:-$ROOT/tests/ref/cellar-cli.py}" +WORK="$ROOT/tests/tmp" +PORT_C="${PORT_C:-18091}" +PORT_P="${PORT_P:-18092}" +PORT_DEAD="${PORT_DEAD:-18999}" + +PASS=0 +FAIL=0 +FAILED=() +SRV_C_PID="" +SRV_P_PID="" + +ok() { PASS=$((PASS + 1)); printf ' PASS %s\n' "$1"; } +ko() { FAIL=$((FAIL + 1)); FAILED+=("$1"); printf ' FAIL %s\n' "$1"; } + +cleanup() { + [ -n "$SRV_C_PID" ] && kill "$SRV_C_PID" 2>/dev/null + [ -n "$SRV_P_PID" ] && kill "$SRV_P_PID" 2>/dev/null + wait 2>/dev/null + return 0 +} +trap cleanup EXIT + +norm() { + sed -e "s|$WORK/home-c|@HOME@|g" -e "s|$WORK/home-p|@HOME@|g" \ + -e "s|bottle-install-[A-Za-z0-9_]\{6,\}|bottle-install-XXXXXX|g" \ + -e "s|$WORK/installs/c|@INSTALL@|g" -e "s|$WORK/installs/p|@INSTALL@|g" \ + -e "s|$WORK/bottles|@BOTTLES@|g" \ + -e "s|-[0-9]\{8\}-[0-9]\{6\}\.tar\.gz|-TIMESTAMP.tar.gz|g" \ + -e "s|$PORT_C|@PORT@|g" -e "s|$PORT_P|@PORT@|g" +} + +check() { + local name="$1" + shift + local stdin_file="-" + if [ "${1:-}" = "--stdin" ]; then + stdin_file="$2" + shift 2 + fi + + local -a cargs=() pargs=() + local a + for a in "$@"; do + cargs+=("${a//@SERVER@/http://127.0.0.1:$PORT_C}") + pargs+=("${a//@SERVER@/http://127.0.0.1:$PORT_P}") + done + + local rc_c rc_p + if [ "$stdin_file" = "-" ]; then + HOME="$WORK/home-c" "$C_BIN" "${cargs[@]}" >"$WORK/c.out" 2>"$WORK/c.err" + rc_c=$? + HOME="$WORK/home-p" "$PY" "$PY_CLIENT" "${pargs[@]}" >"$WORK/p.out" 2>"$WORK/p.err" + rc_p=$? + else + HOME="$WORK/home-c" "$C_BIN" "${cargs[@]}" <"$stdin_file" >"$WORK/c.out" 2>"$WORK/c.err" + rc_c=$? + HOME="$WORK/home-p" "$PY" "$PY_CLIENT" "${pargs[@]}" <"$stdin_file" >"$WORK/p.out" 2>"$WORK/p.err" + rc_p=$? + fi + + norm <"$WORK/c.out" >"$WORK/c.out.n" + norm <"$WORK/p.out" >"$WORK/p.out.n" + norm <"$WORK/c.err" >"$WORK/c.err.n" + norm <"$WORK/p.err" >"$WORK/p.err.n" + + local problems="" + [ "$rc_c" != "$rc_p" ] && problems+="exit($rc_c vs $rc_p) " + diff -q "$WORK/p.out.n" "$WORK/c.out.n" >/dev/null || problems+="stdout " + diff -q "$WORK/p.err.n" "$WORK/c.err.n" >/dev/null || problems+="stderr " + + if [ -z "$problems" ]; then + ok "$name" + else + ko "$name [$problems]" + echo " --- stdout (PY < | C >) ---" + diff "$WORK/p.out.n" "$WORK/c.out.n" | head -20 | sed 's/^/ /' + echo " --- stderr (PY < | C >) ---" + diff "$WORK/p.err.n" "$WORK/c.err.n" | head -10 | sed 's/^/ /' + fi +} + +# ------------------------------------------------------------------ setup + +[ -x "$C_BIN" ] || { echo "binario C non trovato: $C_BIN (esegui make asan)"; exit 1; } +[ -f "$PY_CLIENT" ] || { echo "client Python di riferimento mancante: $PY_CLIENT"; exit 1; } + +rm -rf "$WORK" +mkdir -p "$WORK"/{home-c,home-p,state-c,state-p,installs/c,installs/p,dl-dir} + +printf '[cellar]\nserver = http://127.0.0.1:%s\nbottles_dir = %s/installs/c\n\n' "$PORT_C" "$WORK" >"$WORK/home-c/.cellar.conf" +printf '[cellar]\nserver = http://127.0.0.1:%s\nbottles_dir = %s/installs/p\n\n' "$PORT_P" "$WORK" >"$WORK/home-p/.cellar.conf" + +BOTTLES="$WORK/bottles" +bash "$ROOT/tests/make_fake_bottle.sh" "$BOTTLES" >/dev/null + +"$PY" "$ROOT/tests/mock_server.py" --port "$PORT_C" --state "$WORK/state-c" & +SRV_C_PID=$! +"$PY" "$ROOT/tests/mock_server.py" --port "$PORT_P" --state "$WORK/state-p" & +SRV_P_PID=$! +for _ in $(seq 50); do + curl -sf "http://127.0.0.1:$PORT_C/health" >/dev/null 2>&1 && break + sleep 0.1 +done +for _ in $(seq 50); do + curl -sf "http://127.0.0.1:$PORT_P/health" >/dev/null 2>&1 && break + sleep 0.1 +done + +# archivio di riferimento creato da tarfile di Python (per testare upload, +# download, install e l'estrattore C su un archivio "python-made") +"$PY" - "$BOTTLES/Fake Bottle" "$WORK/ref-archive.tar.gz" <<'PYEOF' +import sys, tarfile +src, dst = sys.argv[1], sys.argv[2] +with tarfile.open(dst, "w:gz") as tf: + tf.add(src, arcname="Fake Bottle") +PYEOF + +printf '1\nParity Wizard\nFake Bottle\nBackup via wizard\nwizard,tags\n' >"$WORK/wiz-upload.in" +printf '1\ny\n' >"$WORK/wiz-install.in" + +echo "== parita' C ($C_BIN) vs Python ($PY_CLIENT) ==" + +# ------------------------------------------------------------------ casi + +check "list vuota (usa ~/.cellar.conf)" "list" +check "scan-local tabella" "scan-local" "--bottles-dir" "$BOTTLES" +check "scan-local --json" "scan-local" "--bottles-dir" "$BOTTLES" "--json" +check "scan-local dir inesistente" "scan-local" "--bottles-dir" "$WORK/nope" +check "upload con tutti i campi" "upload" "$WORK/ref-archive.tar.gz" "--name" "Parity Test" \ + "--bottle-name" "Fake Bottle" "--description" "descrizione" "--tags" "a,b" \ + "--arch" "win32" "--runner" "soda-9.0-1" "--windows-version" "win10" +check "list con 1 record" "list" +check "download su file" "download" "1" "$WORK/dl.bin" +check "download su directory (nome da Content-Disposition)" "download" "1" "$WORK/dl-dir" +check "install (prima volta)" "install" "Fake Bottle" +check "install (esiste, senza --replace)" "install" "Fake Bottle" +check "install --replace" "install" "Fake Bottle" "--replace" +check "install con ref inesistente" "install" "NoSuchBottle" +check "download id inesistente (404)" "download" "99" "$WORK/dl-404.bin" +check "server irraggiungibile" "--server" "http://127.0.0.1:$PORT_DEAD" "list" +check "wizard-upload (input da pipe)" --stdin "$WORK/wiz-upload.in" "wizard-upload" "--bottles-dir" "$BOTTLES" +check "list con 2 record" "list" +check "wizard-install --replace" --stdin "$WORK/wiz-install.in" "wizard-install" "--replace" +check "errore: nessun argomento" +check "errore: comando sconosciuto" "frobnicate" +check "errore: upload senza --name" "upload" "$WORK/ref-archive.tar.gz" +check "errore: archive_id non numerico" "download" "abc" "$WORK/out.bin" +check "errore: argomento extra" "list" "extra" +check "errore: opzione sconosciuta" "scan-local" "--nope" + +# ------------------------------------------------- verifiche sugli artefatti + +echo "== artefatti ==" + +# 1. download: stesso contenuto del file caricato +if cmp -s "$WORK/dl.bin" "$WORK/ref-archive.tar.gz"; then + ok "download produce byte identici all'upload" +else + ko "download produce byte identici all'upload" +fi +if [ -f "$WORK/dl-dir/ref-archive.tar.gz" ]; then + ok "download in directory usa il filename del server" +else + ko "download in directory usa il filename del server" +fi + +# 2. albero installato: Python (archivio python-made) vs C (archivio python-made) +if "$PY" "$ROOT/tests/compare_trees.py" "$WORK/installs/p/Fake Bottle" "$WORK/installs/c/Fake Bottle" --mtimes \ + >"$WORK/trees1.txt" 2>&1; then + ok "albero installato identico (extract python-made)" +else + ko "albero installato identico (extract python-made)" + sed 's/^/ /' "$WORK/trees1.txt" | head -15 +fi + +# 3. archivio creato dal writer C vs writer Python (dall'upload dei wizard) +# l'archivio piu' recente e' quello creato dal writer del client (wizard-upload) +c_arch=$(ls -t "$WORK"/state-c/storage/*.tar.gz 2>/dev/null | head -1) +p_arch=$(ls -t "$WORK"/state-p/storage/*.tar.gz 2>/dev/null | head -1) +if [ -n "$c_arch" ] && [ -n "$p_arch" ]; then + if "$PY" "$ROOT/tests/tar_compare.py" "$p_arch" "$c_arch" >"$WORK/tar.txt" 2>&1; then + ok "archivio C equivalente a quello Python (tarfile)" + else + ko "archivio C equivalente a quello Python (tarfile)" + sed 's/^/ /' "$WORK/tar.txt" | head -15 + fi + # l'archivio C deve essere leggibile anche da GNU tar + if tar tzf "$c_arch" >/dev/null 2>&1; then + ok "archivio C leggibile da GNU tar" + else + ko "archivio C leggibile da GNU tar" + fi +else + ko "archivi dei wizard non trovati negli storage dei mock server" +fi + +# 4. estrazione incrociata: Python estrae l'archivio creato dal C +if [ -n "$c_arch" ]; then + rm -rf "$WORK/xpy" + mkdir -p "$WORK/xpy" + if "$PY" - "$c_arch" "$WORK/xpy" <<'PYEOF' +import sys, tarfile +with tarfile.open(sys.argv[1], "r:gz") as tf: + tf.extractall(sys.argv[2], filter="fully_trusted") +PYEOF + then + if "$PY" "$ROOT/tests/compare_trees.py" "$WORK/xpy/Fake Bottle" "$WORK/installs/p/Fake Bottle" --mtimes \ + >"$WORK/trees2.txt" 2>&1; then + ok "python estrae l'archivio C con metadata identici" + else + ko "python estrae l'archivio C con metadata identici" + sed 's/^/ /' "$WORK/trees2.txt" | head -15 + fi + else + ko "python estrae l'archivio C" + fi +fi + +# 5. --help esce 0 in entrambi (il testo e' volutamente diverso) +HOME="$WORK/home-c" "$C_BIN" --help >/dev/null 2>&1 +rc_c=$? +HOME="$WORK/home-p" "$PY" "$PY_CLIENT" --help >/dev/null 2>&1 +rc_p=$? +if [ "$rc_c" = "0" ] && [ "$rc_p" = "0" ]; then + ok "--help esce 0 in entrambi" +else + ko "--help esce 0 in entrambi ($rc_c vs $rc_p)" +fi + +# ------------------------------------------------------------------ riepilogo + +echo +echo "==================================================" +printf 'PASS: %d FAIL: %d\n' "$PASS" "$FAIL" +if [ "$FAIL" -gt 0 ]; then + printf 'casi falliti:\n' + for n in "${FAILED[@]}"; do printf ' - %s\n' "$n"; done + exit 1 +fi +echo "parita' completa ✔" diff --git a/tests/ref/README.md b/tests/ref/README.md new file mode 100644 index 0000000..7a3f921 --- /dev/null +++ b/tests/ref/README.md @@ -0,0 +1,10 @@ +# Riferimento + +`cellar-cli.py` è una copia **verbatim** del client CLI di Cellar: + +- repo: `enne2/cellar` (Gitea), branch `master` +- commit: `f5216b1733ce55536e2f8b124f1b448f1c6a6e86` +- file originale: `cellar-cli.py` (25.391 byte) + +Serve solo come termine di paragone nei test di parità (`tests/parity_test.sh`): +non è usato dal binario C, non va modificato. diff --git a/tests/ref/cellar-cli.py b/tests/ref/cellar-cli.py new file mode 100644 index 0000000..b9f6fad --- /dev/null +++ b/tests/ref/cellar-cli.py @@ -0,0 +1,679 @@ +#!/usr/bin/env python3 +from __future__ import annotations + +import argparse +import configparser +import json +import shutil +import sys +import tarfile +import tempfile +import urllib.error +import urllib.parse +import urllib.request +from collections.abc import Callable +from datetime import datetime +from pathlib import Path +from typing import Any + +DEFAULT_SERVER = "http://127.0.0.1:8080" +DEFAULT_BOTTLES_DIR = Path.home() / ".var/app/com.usebottles.bottles/data/bottles/bottles" +CONF_FILE = Path.home() / ".cellar.conf" + + +def load_config() -> dict[str, str]: + """Read ~/.cellar.conf [cellar], creating it with defaults if absent. + + Keys returned: 'server', 'bottles_dir'. + """ + cfg = configparser.ConfigParser() + if not CONF_FILE.exists(): + cfg["cellar"] = { + "server": DEFAULT_SERVER, + "bottles_dir": str(DEFAULT_BOTTLES_DIR), + } + with CONF_FILE.open("w") as fh: + cfg.write(fh) + print(f"Created default config: {CONF_FILE}", file=sys.stderr) + else: + cfg.read(CONF_FILE) + + section = cfg["cellar"] if "cellar" in cfg else {} + return { + "server": section.get("server", DEFAULT_SERVER).strip(), + "bottles_dir": section.get("bottles_dir", str(DEFAULT_BOTTLES_DIR)).strip(), + } +CHUNK_SIZE = 1024 * 1024 +ProgressCallback = Callable[[str, float | None], None] + + +def request_json(url: str, method: str = "GET", data: bytes | None = None, headers: dict[str, str] | None = None): + req = urllib.request.Request(url, data=data, method=method) + for key, value in (headers or {}).items(): + req.add_header(key, value) + with urllib.request.urlopen(req) as response: + return json.loads(response.read().decode("utf-8")) + + +def get_archives(server: str) -> list[dict[str, Any]]: + return request_json(f"{server}/archives") + + +def get_archive(server: str, archive_id: int) -> dict[str, Any]: + return request_json(f"{server}/archives/{archive_id}") + + +def notify_progress(progress_callback: ProgressCallback | None, message: str, fraction: float | None = None) -> None: + if progress_callback is not None: + progress_callback(message, fraction) + + +def print_archives(server: str) -> int: + archives = get_archives(server) + if not archives: + print("No archives found.") + return 0 + + print(f"{'ID':<4} {'Name':<30} {'Bottle':<30} {'Arch':<8} {'Runner':<18} {'Size(MB)':>10}") + print("-" * 110) + for item in archives: + size_mb = item["size_bytes"] / (1024 * 1024) + print( + f"{item['id']:<4} " + f"{(item['name'] or '-')[:30]:<30} " + f"{(item.get('bottle_name') or '-')[:30]:<30} " + f"{(item.get('arch') or '-'):<8} " + f"{(item.get('runner') or '-')[:18]:<18} " + f"{size_mb:>10.2f}" + ) + return 0 + + +def upload_archive_with_result( + server: str, + file_path: Path, + fields: dict[str, str], + progress_callback: ProgressCallback | None = None, +) -> dict[str, Any]: + boundary = "----BottleArchiveBoundary7MA4YWxkTrZu0gW" + data = [] + + notify_progress(progress_callback, "Preparing upload…", 0.0) + + def add_field(field_name: str, value: str): + data.extend( + [ + f"--{boundary}\r\n".encode(), + f'Content-Disposition: form-data; name="{field_name}"\r\n\r\n'.encode(), + value.encode(), + b"\r\n", + ] + ) + + for key, value in fields.items(): + if value: + add_field(key, value) + + filename = file_path.name + mime = "application/gzip" if filename.endswith((".tar.gz", ".tgz", ".gz")) else "application/octet-stream" + notify_progress(progress_callback, f"Reading archive {filename}…", 0.25) + data.extend( + [ + f"--{boundary}\r\n".encode(), + f'Content-Disposition: form-data; name="file"; filename="{filename}"\r\n'.encode(), + f"Content-Type: {mime}\r\n\r\n".encode(), + file_path.read_bytes(), + b"\r\n", + f"--{boundary}--\r\n".encode(), + ] + ) + + payload = b"".join(data) + notify_progress(progress_callback, "Uploading archive…", 0.7) + archive = request_json( + f"{server}/archives", + method="POST", + data=payload, + headers={"Content-Type": f"multipart/form-data; boundary={boundary}"}, + ) + notify_progress(progress_callback, f"Upload completed: {archive['name']}", 1.0) + return archive + + +def upload_archive( + server: str, + file_path: Path, + fields: dict[str, str], + progress_callback: ProgressCallback | None = None, +) -> int: + archive = upload_archive_with_result( + server, + file_path, + fields, + progress_callback=progress_callback, + ) + print(f"Uploaded archive #{archive['id']}: {archive['name']}") + return 0 + + +def download_archive( + server: str, + archive_id: int, + output: Path, + progress_callback: ProgressCallback | None = None, +) -> int: + url = f"{server}/archives/{archive_id}/download" + req = urllib.request.Request(url, method="GET") + notify_progress(progress_callback, "Preparing download…", 0.0) + with urllib.request.urlopen(req) as response: + if output.is_dir(): + filename = response.headers.get_filename() or f"archive-{archive_id}.bin" + destination = output / filename + else: + destination = output + + total_bytes = response.headers.get("Content-Length") + total = int(total_bytes) if total_bytes and total_bytes.isdigit() else None + received = 0 + + with destination.open("wb") as buffer: + while chunk := response.read(CHUNK_SIZE): + buffer.write(chunk) + received += len(chunk) + fraction = (received / total) if total else None + notify_progress(progress_callback, f"Downloading archive… {received / (1024 * 1024):.1f} MB", fraction) + + notify_progress(progress_callback, f"Download completed: {destination}", 1.0) + if progress_callback is None: + print(f"Downloaded to {destination}") + return 0 + + +def find_remote_archive(server: str, bottle_ref: str) -> dict[str, Any]: + archives = get_archives(server) + bottle_ref_lower = bottle_ref.lower() + + for item in archives: + if (item.get("bottle_name") or "").lower() == bottle_ref_lower: + return item + for item in archives: + if (item.get("name") or "").lower() == bottle_ref_lower: + return item + + raise FileNotFoundError(f"No remote archive found for '{bottle_ref}'") + + +def safe_extract_tar(archive_path: Path, target_dir: Path) -> None: + with tarfile.open(archive_path, "r:gz") as tar: + for member in tar.getmembers(): + member_path = (target_dir / member.name).resolve() + if not str(member_path).startswith(str(target_dir.resolve())): + raise ValueError("Unsafe archive path detected.") + tar.extractall(target_dir, filter="fully_trusted") + + +def install_archive_from_metadata( + server: str, + archive: dict[str, Any], + bottles_dir: Path, + replace: bool, + progress_callback: ProgressCallback | None = None, + bottle_ref: str | None = None, +) -> int: + bottle_name = archive.get("bottle_name") or archive.get("name") or bottle_ref or "unknown-bottle" + target_dir = bottles_dir / bottle_name + + if target_dir.exists(): + if not replace: + notify_progress(progress_callback, f"Bottle already exists: {target_dir}", None) + print( + f"Bottle already exists: {target_dir}\n" + "Use --replace to overwrite it.", + file=sys.stderr, + ) + return 1 + notify_progress(progress_callback, f"Removing existing bottle: {target_dir}", None) + shutil.rmtree(target_dir) + + bottles_dir.mkdir(parents=True, exist_ok=True) + + with tempfile.TemporaryDirectory(prefix="bottle-install-") as tmp_dir: + tmp_path = Path(tmp_dir) + download_path = tmp_path / f"archive-{archive['id']}.tar.gz" + notify_progress(progress_callback, "Downloading archive…", 0.0) + download_archive(server, int(archive["id"]), download_path, progress_callback=progress_callback) + + extract_dir = tmp_path / "extract" + extract_dir.mkdir(parents=True, exist_ok=True) + notify_progress(progress_callback, "Extracting archive…", None) + safe_extract_tar(download_path, extract_dir) + + candidates = [path for path in extract_dir.iterdir() if path.is_dir()] + if not candidates: + raise FileNotFoundError("Archive did not contain a bottle directory.") + + source_dir = candidates[0] + bottle_yml = source_dir / "bottle.yml" + if not bottle_yml.exists(): + raise FileNotFoundError("Archive does not look like a valid bottle backup.") + + notify_progress(progress_callback, f"Installing into {target_dir}…", None) + shutil.move(str(source_dir), str(target_dir)) + + notify_progress(progress_callback, f"Installed bottle '{bottle_name}' to {target_dir}", 1.0) + if progress_callback is None: + print(f"Installed bottle '{bottle_name}' to {target_dir}") + return 0 + + +def install_archive( + server: str, + bottle_ref: str, + bottles_dir: Path, + replace: bool, + progress_callback: ProgressCallback | None = None, +) -> int: + archive = find_remote_archive(server, bottle_ref) + return install_archive_from_metadata( + server, + archive, + bottles_dir, + replace, + progress_callback=progress_callback, + bottle_ref=bottle_ref, + ) + + +def parse_bottle_yml(bottle_yml: Path) -> dict[str, str]: + data: dict[str, str] = {} + wanted_keys = {"Name", "Arch", "Runner", "Environment", "Windows"} + + for line in bottle_yml.read_text(encoding="utf-8", errors="ignore").splitlines(): + if ":" not in line or line.startswith(" "): + continue + key, value = line.split(":", 1) + if key in wanted_keys: + data[key] = value.strip().strip("'") + + return data + + +def collect_local_bottles(bottles_dir: Path) -> list[dict[str, Any]]: + if not bottles_dir.exists(): + return [] + + bottles: list[dict[str, Any]] = [] + for directory in sorted(path for path in bottles_dir.iterdir() if path.is_dir()): + bottle_yml = directory / "bottle.yml" + if not bottle_yml.exists(): + continue + + metadata = parse_bottle_yml(bottle_yml) + bottles.append( + { + "name": metadata.get("Name", directory.name), + "directory": directory.name, + "path": str(directory), + "arch": metadata.get("Arch", "-"), + "runner": metadata.get("Runner", "-"), + "environment": metadata.get("Environment", "-"), + "windows": metadata.get("Windows", "-"), + } + ) + + return bottles + + +def scan_local_bottles(bottles_dir: Path, as_json: bool) -> int: + bottles = collect_local_bottles(bottles_dir) + if as_json: + print(json.dumps(bottles, indent=2)) + return 0 + + if not bottles: + print(f"No local bottles found in {bottles_dir}") + return 0 + + print(f"Local Bottles directory: {bottles_dir}") + print(f"{'Dir':<24} {'Name':<28} {'Arch':<8} {'Runner':<18} {'Env':<12} {'Windows':<10}") + print("-" * 110) + for bottle in bottles: + print( + f"{bottle['directory'][:24]:<24} " + f"{bottle['name'][:28]:<28} " + f"{bottle['arch']:<8} " + f"{bottle['runner'][:18]:<18} " + f"{bottle['environment'][:12]:<12} " + f"{bottle['windows'][:10]:<10}" + ) + return 0 + + +def create_bottle_backup(bottle: dict[str, Any], output_dir: Path | None = None) -> Path: + source_dir = Path(bottle["path"]) + target_dir = output_dir or Path(tempfile.gettempdir()) + timestamp = datetime.now().strftime("%Y%m%d-%H%M%S") + archive_name = f"{bottle['directory']}-{timestamp}.tar.gz" + archive_path = target_dir / archive_name + + with tarfile.open(archive_path, "w:gz") as tar: + tar.add(source_dir, arcname=source_dir.name) + + return archive_path + + +def prompt_text(label: str, default: str) -> str: + value = input(f"{label} [{default}]: ").strip() + return value or default + + +def choose_bottle(bottles: list[dict[str, Any]]) -> dict[str, Any]: + print("Available local bottles:") + for index, bottle in enumerate(bottles, start=1): + print( + f" {index}. {bottle['directory']} " + f"(arch={bottle['arch']}, runner={bottle['runner']}, windows={bottle['windows']})" + ) + + while True: + raw = input("Select a bottle number: ").strip() + try: + choice = int(raw) + except ValueError: + print("Please enter a valid number.") + continue + + if 1 <= choice <= len(bottles): + return bottles[choice - 1] + + print("Choice out of range.") + + +def wizard_upload(server: str, bottles_dir: Path) -> int: + bottles = collect_local_bottles(bottles_dir) + if not bottles: + print(f"No local bottles found in {bottles_dir}") + return 0 + + bottle = choose_bottle(bottles) + display_name = prompt_text("Archive name", bottle["name"]) + bottle_name = prompt_text("Bottle name", bottle["directory"]) + description = prompt_text("Description", f"Backup of {bottle['name']}") + tags = prompt_text("Tags", "bottles,backup") + + print(f"\nCreating backup for {bottle['directory']}...") + archive_path = create_bottle_backup(bottle) + print(f"Backup created: {archive_path}") + + try: + return upload_archive( + server, + archive_path, + { + "name": display_name, + "bottle_name": bottle_name, + "description": description, + "tags": tags, + "arch": str(bottle.get("arch", "")), + "runner": str(bottle.get("runner", "")), + "windows_version": str(bottle.get("windows", "")), + }, + ) + finally: + archive_path.unlink(missing_ok=True) + + +def wizard_install(server: str, bottles_dir: Path, replace: bool) -> int: + archives = get_archives(server) + if not archives: + print("No archives found on the server.") + return 0 + + print(f"{'#':<4} {'ID':<4} {'Name':<30} {'Bottle':<30} {'Arch':<8} {'Runner':<18} {'Size(MB)':>10}") + print("-" * 114) + for index, item in enumerate(archives, start=1): + size_mb = item["size_bytes"] / (1024 * 1024) + print( + f"{index:<4} " + f"{item['id']:<4} " + f"{(item['name'] or '-')[:30]:<30} " + f"{(item.get('bottle_name') or '-')[:30]:<30} " + f"{(item.get('arch') or '-'):<8} " + f"{(item.get('runner') or '-')[:18]:<18} " + f"{size_mb:>10.2f}" + ) + + while True: + raw = input("\nSelect an archive number: ").strip() + try: + choice = int(raw) + except ValueError: + print("Please enter a valid number.") + continue + if 1 <= choice <= len(archives): + archive = archives[choice - 1] + break + print("Choice out of range.") + + if not replace: + bottle_name = archive.get("bottle_name") or archive.get("name") or "unknown" + target_dir = bottles_dir / bottle_name + if target_dir.exists(): + ans = input(f"Bottle '{bottle_name}' already exists at {target_dir}. Replace? [y/N]: ").strip().lower() + replace = ans in ("y", "yes") + + return install_archive_from_metadata(server, archive, bottles_dir, replace) + + +def build_parser() -> argparse.ArgumentParser: + parser = argparse.ArgumentParser( + prog="cellar-cli", + description=( + "Cellar — command-line client for the Bottle Archive Server.\n\n" + "Manage backups of Wine prefixes (Bottles) hosted on a remote server.\n" + "You can list, upload, download, and install bottle archives, or run the\n" + "interactive wizard to pick a local bottle, pack it, and upload it in one step." + ), + epilog=( + "examples:\n" + " %(prog)s list\n" + " %(prog)s --server http://brain.local:8080 list\n" + " %(prog)s --server http://brain.local:8080 wizard-upload\n" + " %(prog)s upload MyGame.tar.gz --name 'My Game' --tags 'gog,rpg'\n" + " %(prog)s download 3 ~/Downloads/\n" + " %(prog)s install 'My Game' --replace\n" + " %(prog)s scan-local --json\n" + " %(prog)s wizard-install\n" + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + conf = load_config() + default_server = conf["server"] + default_bottles_dir = Path(conf["bottles_dir"]) + parser.add_argument( + "--server", + default=default_server, + metavar="URL", + help=( + f"Base URL of the Bottle Archive Server " + f"(default: {default_server}; override via {CONF_FILE})" + ), + ) + + subparsers = parser.add_subparsers(dest="command", required=True, title="commands") + + subparsers.add_parser( + "list", + help="List all archives stored on the server", + description="Fetch and display every bottle archive available on the server, including\nname, source bottle, architecture, runner, and compressed size.", + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + + upload_parser = subparsers.add_parser( + "upload", + help="Upload a pre-existing archive file to the server", + description=( + "Upload a .tar.gz bottle archive that you already created manually.\n" + "Use 'wizard-upload' instead to let the tool create the archive for you." + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + upload_parser.add_argument("file", type=Path, help="Path to the .tar.gz archive file to upload") + upload_parser.add_argument("--name", required=True, metavar="TEXT", help="Human-readable display name for the archive (required)") + upload_parser.add_argument("--bottle-name", metavar="TEXT", help="Internal Bottles directory name (defaults to --name)") + upload_parser.add_argument("--description", metavar="TEXT", help="Free-text description shown in the catalogue") + upload_parser.add_argument("--tags", metavar="TAG[,TAG…]", help="Comma-separated list of tags, e.g. 'gog,rpg,win32'") + upload_parser.add_argument("--arch", metavar="ARCH", help="Windows architecture target, e.g. 'win32' or 'win64'") + upload_parser.add_argument("--runner", metavar="NAME", help="Wine/Proton runner used by the bottle, e.g. 'soda-9.0-1'") + upload_parser.add_argument("--windows-version", metavar="VERSION", help="Emulated Windows version, e.g. 'win10'") + + download_parser = subparsers.add_parser( + "download", + help="Download a raw archive file from the server", + description="Download the compressed .tar.gz archive for a specific archive ID.\nPass the numeric ID shown by 'list'.", + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + download_parser.add_argument("archive_id", type=int, metavar="ID", help="Numeric archive ID (see: cellar-cli list)") + download_parser.add_argument("output", type=Path, metavar="DEST", help="Destination: a file path or an existing directory") + + install_parser = subparsers.add_parser( + "install", + help="Download and install a bottle directly into the local Bottles data directory", + description=( + "Fetch the archive that matches BOTTLE (matched against archive name or source\n" + "bottle name) and extract it into the local Bottles directory so it appears\n" + "immediately in the Bottles app." + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + install_parser.add_argument("bottle", metavar="BOTTLE", help="Archive name or bottle name to search for on the server") + install_parser.add_argument( + "--bottles-dir", + type=Path, + default=default_bottles_dir, + metavar="DIR", + help=f"Local Bottles data directory (default: {default_bottles_dir}; override via {CONF_FILE})", + ) + install_parser.add_argument( + "--replace", + action="store_true", + help="Overwrite the local bottle if a directory with the same name already exists", + ) + + scan_parser = subparsers.add_parser( + "scan-local", + help="List all Wine prefixes (bottles) found on this computer", + description=( + "Scan the local Bottles data directory and print every bottle found,\n" + "including its architecture, runner, environment type, and Windows version." + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + scan_parser.add_argument( + "--bottles-dir", + type=Path, + default=default_bottles_dir, + metavar="DIR", + help=f"Local Bottles data directory (default: {default_bottles_dir}; override via {CONF_FILE})", + ) + scan_parser.add_argument("--json", action="store_true", help="Output the results as a JSON array instead of a table") + + wizard_parser = subparsers.add_parser( + "wizard-upload", + help="Interactive wizard: pick a local bottle, pack it, and upload it to the server", + description=( + "Guided upload flow:\n" + " 1. Scan the local Bottles directory and show a numbered list.\n" + " 2. Prompt you to select a bottle.\n" + " 3. Ask for archive name, description, and tags (pre-filled with sensible defaults).\n" + " 4. Create a compressed .tar.gz backup in a temporary directory.\n" + " 5. Upload the archive to the server and report the assigned ID.\n\n" + "The temporary archive file is deleted automatically after upload." + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + wizard_parser.add_argument( + "--bottles-dir", + type=Path, + default=default_bottles_dir, + metavar="DIR", + help=f"Local Bottles data directory (default: {default_bottles_dir}; override via {CONF_FILE})", + ) + + wizard_install_parser = subparsers.add_parser( + "wizard-install", + help="Interactive wizard: pick a remote archive and install it locally", + description=( + "Guided install flow:\n" + " 1. Fetch all archives available on the server and show a numbered list.\n" + " 2. Prompt you to select one.\n" + " 3. Download, extract, and install the bottle into the local Bottles directory.\n" + " 4. If the bottle already exists, ask whether to replace it (or use --replace).\n\n" + "The downloaded archive is removed automatically after extraction." + ), + formatter_class=argparse.RawDescriptionHelpFormatter, + ) + wizard_install_parser.add_argument( + "--bottles-dir", + type=Path, + default=default_bottles_dir, + metavar="DIR", + help=f"Local Bottles data directory (default: {default_bottles_dir}; override via {CONF_FILE})", + ) + wizard_install_parser.add_argument( + "--replace", + action="store_true", + help="Overwrite the local bottle without prompting if it already exists", + ) + + return parser + + +def main() -> int: + parser = build_parser() + args = parser.parse_args() + server = args.server.rstrip("/") + + try: + if args.command == "list": + return print_archives(server) + if args.command == "upload": + return upload_archive( + server, + args.file, + { + "name": args.name, + "bottle_name": args.bottle_name or "", + "description": args.description or "", + "tags": args.tags or "", + "arch": args.arch or "", + "runner": args.runner or "", + "windows_version": args.windows_version or "", + }, + ) + if args.command == "download": + return download_archive(server, args.archive_id, args.output) + if args.command == "install": + return install_archive(server, args.bottle, args.bottles_dir, args.replace) + if args.command == "scan-local": + return scan_local_bottles(args.bottles_dir, args.json) + if args.command == "wizard-upload": + return wizard_upload(server, args.bottles_dir) + if args.command == "wizard-install": + return wizard_install(server, args.bottles_dir, args.replace) + parser.error("Unknown command") + return 2 + except urllib.error.HTTPError as exc: + detail = exc.read().decode("utf-8", errors="ignore") + print(f"HTTP {exc.code}: {detail or exc.reason}", file=sys.stderr) + return 1 + except urllib.error.URLError as exc: + print(f"Connection error: {exc.reason}", file=sys.stderr) + return 1 + except FileNotFoundError as exc: + print(f"File error: {exc}", file=sys.stderr) + return 1 + + +if __name__ == "__main__": + raise SystemExit(main()) diff --git a/tests/tar_compare.py b/tests/tar_compare.py new file mode 100755 index 0000000..6c246de --- /dev/null +++ b/tests/tar_compare.py @@ -0,0 +1,66 @@ +#!/usr/bin/env python3 +"""Confronta due archivi tar.gz membro per membro (parita' writer C vs Python). + +Uso: tar_compare.py a.tar.gz b.tar.gz [--tolerance 1e-6] +""" +from __future__ import annotations + +import argparse +import hashlib +import sys +import tarfile + + +def load(path: str): + out = {} + with tarfile.open(path, "r:gz") as tf: + for m in tf.getmembers(): + digest = "-" + if m.isreg(): + fh = tf.extractfile(m) + if fh is not None: + digest = hashlib.sha256(fh.read()).hexdigest() + out[m.name] = { + "type": m.type.decode() if isinstance(m.type, bytes) else m.type, + "mode": m.mode, + "uid": m.uid, + "gid": m.gid, + "size": m.size, + "link": m.linkname, + "mtime": m.mtime, + "sha": digest, + } + return out + + +def main() -> int: + ap = argparse.ArgumentParser() + ap.add_argument("a") + ap.add_argument("b") + ap.add_argument("--tolerance", type=float, default=1e-6) + args = ap.parse_args() + a, b = load(args.a), load(args.b) + ok = True + for name in sorted(set(a) | set(b)): + if name not in a: + print(f"SOLO IN B: {name}") + ok = False + continue + if name not in b: + print(f"SOLO IN A: {name}") + ok = False + continue + x, y = a[name], b[name] + for field in ("type", "mode", "uid", "gid", "size", "link", "sha"): + if x[field] != y[field]: + print(f"DIFF {name}: {field} A={x[field]!r} B={y[field]!r}") + ok = False + if abs(x["mtime"] - y["mtime"]) > args.tolerance: + print(f"DIFF {name}: mtime A={x['mtime']:.7f} B={y['mtime']:.7f}") + ok = False + print("archivi equivalenti" if ok else "archivi DIVERSI") + return 0 if ok else 1 + + +if __name__ == "__main__": + raise SystemExit(main()) diff --git a/tests/tar_dump.py b/tests/tar_dump.py new file mode 100755 index 0000000..cfe49cf --- /dev/null +++ b/tests/tar_dump.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python3 +"""Stampa una descrizione canonica di un archivio tar (per confronti di parita'). + +Uso: tar_dump.py [--tolerance SECONDI] + +Ogni riga: tipo modo uid gid mtime size linkname name sha256(contenuto) +Serve a verificare che l'archivio prodotto dal writer C sia strutturalmente +equivalente a quello prodotto da tarfile di Python. +""" +from __future__ import annotations + +import argparse +import hashlib +import sys +import tarfile + + +def main() -> int: + ap = argparse.ArgumentParser() + ap.add_argument("archive") + ap.add_argument("--tolerance", type=float, default=1e-6) + args = ap.parse_args() + try: + with tarfile.open(args.archive, "r:gz") as tf: + members = tf.getmembers() + for m in sorted(members, key=lambda x: x.name): + digest = "-" + if m.isreg(): + fh = tf.extractfile(m) + if fh is not None: + digest = hashlib.sha256(fh.read()).hexdigest()[:16] + link = m.linkname or "-" + print( + f"{m.type.decode() if isinstance(m.type, bytes) else m.type} " + f"{m.mode:04o} {m.uid} {m.gid} {m.mtime:.7f} {m.size} {link} " + f"{m.name} {digest}" + ) + except Exception as exc: # noqa: BLE001 + print(f"ERROR: {exc}", file=sys.stderr) + return 1 + return 0 + + +if __name__ == "__main__": + raise SystemExit(main()) diff --git a/tests/verify_binary.sh b/tests/verify_binary.sh new file mode 100755 index 0000000..0bab37f --- /dev/null +++ b/tests/verify_binary.sh @@ -0,0 +1,67 @@ +#!/usr/bin/env bash +# Verifica i requisiti di portabilita' di un binario compilato: +# - tipo di ELF, architettura, ABI minima del kernel +# - statico o dinamico, librerie richieste +# - versioni di GLIBC richieste (max) come fa scripts/build-binaries.sh di Cellar +# - simboli di syscall "moderne" che romperebbero i kernel vecchi +set -uo pipefail + +bin="${1:?uso: verify_binary.sh }" +[ -x "$bin" ] || { echo "non eseguibile: $bin"; exit 1; } + +echo "== binario ==" +file -b "$bin" +printf 'dimensione: %s\n' "$(du -h "$bin" | cut -f1)" +printf 'sha256: %s\n' "$(sha256sum "$bin" | cut -d' ' -f1)" + +echo +echo "== link ==" +ldd_out=$(ldd "$bin" 2>&1) +if grep -qiE "not a dynamic executable|non è un eseguibile dinamico" <<<"$ldd_out"; then + echo "STATICO: nessuna dipendenza a runtime ✔" +else + echo "DINAMICO — librerie:" + sed 's/^/ /' <<<"$ldd_out" +fi + +echo +echo "== ABI minima del kernel (ELF note) ==" +readelf -n "$bin" 2>/dev/null | grep -iE "ABI|OS:" | sed 's/^ */ /' || echo " (nessuna nota)" + +echo +echo "== simboli GLIBC richiesti ==" +versions=$(objdump -p "$bin" 2>/dev/null | grep -oE 'GLIBC_[0-9]+\.[0-9]+(\.[0-9]+)?' | sort -Vu) +if [ -z "$versions" ]; then + echo " nessuno (binario statico o solo simboli base)" +else + max=$(tail -1 <<<"$versions") + echo " massimo richiesto: $max" + sed 's/^/ /' <<<"$versions" + case "$max" in + GLIBC_2.1*|GLIBC_2.2|GLIBC_2.3|GLIBC_2.4|GLIBC_2.5|GLIBC_2.6|GLIBC_2.7|GLIBC_2.8|GLIBC_2.9|GLIBC_2.1[0-7]) + echo " -> compatibile anche con distro molto vecchie (glibc <= 2.17)" ;; + *) + echo " ATTENZIONE: richiede una glibc piu' recente di 2.17 (CentOS 7 / Debian 8)" ;; + esac +fi + +echo +echo "== syscall moderne (compatibilita' kernel vecchi) ==" +if nm "$bin" 2>/dev/null | grep -qE '^[0-9a-f]+ [TtDd] '; then + hits=$(nm "$bin" 2>/dev/null | grep -oE '\b(statx|openat2|memfd_create|getrandom|pidfd_open|copy_file_range|renameat2|close_range)\b' | sort -u || true) +else + hits=$(objdump -T "$bin" 2>/dev/null | grep -oE '\b(statx|openat2|memfd_create|getrandom|pidfd_open|copy_file_range|renameat2|close_range)\b' | sort -u || true) +fi +if [ -z "$hits" ]; then + echo " nessuna: il binario usa solo syscall classiche ✔" +else + echo " presente/i: $(tr '\n' ' ' <<<"$hits")" +fi + +echo +echo "== prova di esecuzione ==" +if "$bin" --help >/dev/null 2>&1; then + echo " --help OK" +else + echo " --help FALLITO (probabile incompatibilita' di piattaforma)" +fi diff --git a/third_party/miniz.LICENSE b/third_party/miniz.LICENSE new file mode 100644 index 0000000..1982f4b --- /dev/null +++ b/third_party/miniz.LICENSE @@ -0,0 +1,22 @@ +Copyright 2013-2014 RAD Game Tools and Valve Software +Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC + +All Rights Reserved. + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/third_party/miniz.c b/third_party/miniz.c new file mode 100644 index 0000000..8d0032f --- /dev/null +++ b/third_party/miniz.c @@ -0,0 +1,7833 @@ +#include "miniz.h" +/************************************************************************** + * + * Copyright 2013-2014 RAD Game Tools and Valve Software + * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + **************************************************************************/ + + + +typedef unsigned char mz_validate_uint16[sizeof(mz_uint16) == 2 ? 1 : -1]; +typedef unsigned char mz_validate_uint32[sizeof(mz_uint32) == 4 ? 1 : -1]; +typedef unsigned char mz_validate_uint64[sizeof(mz_uint64) == 8 ? 1 : -1]; + +#ifdef __cplusplus +extern "C" { +#endif + +/* ------------------- zlib-style API's */ + +mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len) +{ + mz_uint32 i, s1 = (mz_uint32)(adler & 0xffff), s2 = (mz_uint32)(adler >> 16); + size_t block_len = buf_len % 5552; + if (!ptr) + return MZ_ADLER32_INIT; + while (buf_len) + { + for (i = 0; i + 7 < block_len; i += 8, ptr += 8) + { + s1 += ptr[0], s2 += s1; + s1 += ptr[1], s2 += s1; + s1 += ptr[2], s2 += s1; + s1 += ptr[3], s2 += s1; + s1 += ptr[4], s2 += s1; + s1 += ptr[5], s2 += s1; + s1 += ptr[6], s2 += s1; + s1 += ptr[7], s2 += s1; + } + for (; i < block_len; ++i) + s1 += *ptr++, s2 += s1; + s1 %= 65521U, s2 %= 65521U; + buf_len -= block_len; + block_len = 5552; + } + return (s2 << 16) + s1; +} + +/* Karl Malbrain's compact CRC-32. See "A compact CCITT crc16 and crc32 C implementation that balances processor cache usage against speed": http://www.geocities.com/malbrain/ */ +#if 0 + mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len) + { + static const mz_uint32 s_crc32[16] = { 0, 0x1db71064, 0x3b6e20c8, 0x26d930ac, 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c, + 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c, 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c }; + mz_uint32 crcu32 = (mz_uint32)crc; + if (!ptr) + return MZ_CRC32_INIT; + crcu32 = ~crcu32; + while (buf_len--) + { + mz_uint8 b = *ptr++; + crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b & 0xF)]; + crcu32 = (crcu32 >> 4) ^ s_crc32[(crcu32 & 0xF) ^ (b >> 4)]; + } + return ~crcu32; + } +#elif defined(USE_EXTERNAL_MZCRC) +/* If USE_EXTERNAL_CRC is defined, an external module will export the + * mz_crc32() symbol for us to use, e.g. an SSE-accelerated version. + * Depending on the impl, it may be necessary to ~ the input/output crc values. + */ +mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len); +#else +/* Faster, but larger CPU cache footprint. + */ +mz_ulong mz_crc32(mz_ulong crc, const mz_uint8 *ptr, size_t buf_len) +{ + static const mz_uint32 s_crc_table[256] = + { + 0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, + 0x9E6495A3, 0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, + 0xE7B82D07, 0x90BF1D91, 0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, + 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7, 0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, + 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5, 0x3B6E20C8, 0x4C69105E, 0xD56041E4, + 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B, 0x35B5A8FA, 0x42B2986C, + 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59, 0x26D930AC, + 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F, + 0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, + 0xB6662D3D, 0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, + 0x9FBFE4A5, 0xE8B8D433, 0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, + 0x086D3D2D, 0x91646C97, 0xE6635C01, 0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, + 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457, 0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, + 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65, 0x4DB26158, 0x3AB551CE, + 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB, 0x4369E96A, + 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9, + 0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, + 0xCE61E49F, 0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, + 0xB7BD5C3B, 0xC0BA6CAD, 0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, + 0x9DD277AF, 0x04DB2615, 0x73DC1683, 0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, + 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1, 0xF00F9344, 0x8708A3D2, 0x1E01F268, + 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7, 0xFED41B76, 0x89D32BE0, + 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5, 0xD6D6A3E8, + 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B, + 0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, + 0x4669BE79, 0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, + 0x220216B9, 0x5505262F, 0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, + 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D, 0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, + 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713, 0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, + 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21, 0x86D3D2D4, 0xF1D4E242, + 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777, 0x88085AE6, + 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45, + 0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, + 0x3E6E77DB, 0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, + 0x47B2CF7F, 0x30B5FFE9, 0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, + 0xCDD70693, 0x54DE5729, 0x23D967BF, 0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, + 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D + }; + + mz_uint32 crc32 = (mz_uint32)crc ^ 0xFFFFFFFF; + const mz_uint8 *pByte_buf = (const mz_uint8 *)ptr; + + while (buf_len >= 4) + { + crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF]; + crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[1]) & 0xFF]; + crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[2]) & 0xFF]; + crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[3]) & 0xFF]; + pByte_buf += 4; + buf_len -= 4; + } + + while (buf_len) + { + crc32 = (crc32 >> 8) ^ s_crc_table[(crc32 ^ pByte_buf[0]) & 0xFF]; + ++pByte_buf; + --buf_len; + } + + return ~crc32; +} +#endif + +void mz_free(void *p) +{ + MZ_FREE(p); +} + +MINIZ_EXPORT void *miniz_def_alloc_func(void *opaque, size_t items, size_t size) +{ + (void)opaque, (void)items, (void)size; + return MZ_MALLOC(items * size); +} +MINIZ_EXPORT void miniz_def_free_func(void *opaque, void *address) +{ + (void)opaque, (void)address; + MZ_FREE(address); +} +MINIZ_EXPORT void *miniz_def_realloc_func(void *opaque, void *address, size_t items, size_t size) +{ + (void)opaque, (void)address, (void)items, (void)size; + return MZ_REALLOC(address, items * size); +} + +const char *mz_version(void) +{ + return MZ_VERSION; +} + +#ifndef MINIZ_NO_ZLIB_APIS + +#ifndef MINIZ_NO_DEFLATE_APIS + +int mz_deflateInit(mz_streamp pStream, int level) +{ + return mz_deflateInit2(pStream, level, MZ_DEFLATED, MZ_DEFAULT_WINDOW_BITS, 9, MZ_DEFAULT_STRATEGY); +} + +int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy) +{ + tdefl_compressor *pComp; + mz_uint comp_flags = TDEFL_COMPUTE_ADLER32 | tdefl_create_comp_flags_from_zip_params(level, window_bits, strategy); + + if (!pStream) + return MZ_STREAM_ERROR; + if ((method != MZ_DEFLATED) || ((mem_level < 1) || (mem_level > 9)) || ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS))) + return MZ_PARAM_ERROR; + + pStream->data_type = 0; + pStream->adler = MZ_ADLER32_INIT; + pStream->msg = NULL; + pStream->reserved = 0; + pStream->total_in = 0; + pStream->total_out = 0; + if (!pStream->zalloc) + pStream->zalloc = miniz_def_alloc_func; + if (!pStream->zfree) + pStream->zfree = miniz_def_free_func; + + pComp = (tdefl_compressor *)pStream->zalloc(pStream->opaque, 1, sizeof(tdefl_compressor)); + if (!pComp) + return MZ_MEM_ERROR; + + pStream->state = (struct mz_internal_state *)pComp; + + if (tdefl_init(pComp, NULL, NULL, comp_flags) != TDEFL_STATUS_OKAY) + { + mz_deflateEnd(pStream); + return MZ_PARAM_ERROR; + } + + return MZ_OK; +} + +int mz_deflateReset(mz_streamp pStream) +{ + if ((!pStream) || (!pStream->state) || (!pStream->zalloc) || (!pStream->zfree)) + return MZ_STREAM_ERROR; + pStream->total_in = pStream->total_out = 0; + tdefl_init((tdefl_compressor *)pStream->state, NULL, NULL, ((tdefl_compressor *)pStream->state)->m_flags); + return MZ_OK; +} + +int mz_deflate(mz_streamp pStream, int flush) +{ + size_t in_bytes, out_bytes; + mz_ulong orig_total_in, orig_total_out; + int mz_status = MZ_OK; + + if ((!pStream) || (!pStream->state) || (flush < 0) || (flush > MZ_FINISH) || (!pStream->next_out)) + return MZ_STREAM_ERROR; + if (!pStream->avail_out) + return MZ_BUF_ERROR; + + if (flush == MZ_PARTIAL_FLUSH) + flush = MZ_SYNC_FLUSH; + + if (((tdefl_compressor *)pStream->state)->m_prev_return_status == TDEFL_STATUS_DONE) + return (flush == MZ_FINISH) ? MZ_STREAM_END : MZ_BUF_ERROR; + + orig_total_in = pStream->total_in; + orig_total_out = pStream->total_out; + for (;;) + { + tdefl_status defl_status; + in_bytes = pStream->avail_in; + out_bytes = pStream->avail_out; + + defl_status = tdefl_compress((tdefl_compressor *)pStream->state, pStream->next_in, &in_bytes, pStream->next_out, &out_bytes, (tdefl_flush)flush); + pStream->next_in += (mz_uint)in_bytes; + pStream->avail_in -= (mz_uint)in_bytes; + pStream->total_in += (mz_uint)in_bytes; + pStream->adler = tdefl_get_adler32((tdefl_compressor *)pStream->state); + + pStream->next_out += (mz_uint)out_bytes; + pStream->avail_out -= (mz_uint)out_bytes; + pStream->total_out += (mz_uint)out_bytes; + + if (defl_status < 0) + { + mz_status = MZ_STREAM_ERROR; + break; + } + else if (defl_status == TDEFL_STATUS_DONE) + { + mz_status = MZ_STREAM_END; + break; + } + else if (!pStream->avail_out) + break; + else if ((!pStream->avail_in) && (flush != MZ_FINISH)) + { + if ((flush) || (pStream->total_in != orig_total_in) || (pStream->total_out != orig_total_out)) + break; + return MZ_BUF_ERROR; /* Can't make forward progress without some input. + */ + } + } + return mz_status; +} + +int mz_deflateEnd(mz_streamp pStream) +{ + if (!pStream) + return MZ_STREAM_ERROR; + if (pStream->state) + { + pStream->zfree(pStream->opaque, pStream->state); + pStream->state = NULL; + } + return MZ_OK; +} + +mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len) +{ + (void)pStream; + /* This is really over conservative. (And lame, but it's actually pretty tricky to compute a true upper bound given the way tdefl's blocking works.) */ + return MZ_MAX(128 + (source_len * 110) / 100, 128 + source_len + ((source_len / (31 * 1024)) + 1) * 5); +} + +int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level) +{ + int status; + mz_stream stream; + memset(&stream, 0, sizeof(stream)); + + /* In case mz_ulong is 64-bits (argh I hate longs). */ + if ((mz_uint64)(source_len | *pDest_len) > 0xFFFFFFFFU) + return MZ_PARAM_ERROR; + + stream.next_in = pSource; + stream.avail_in = (mz_uint32)source_len; + stream.next_out = pDest; + stream.avail_out = (mz_uint32)*pDest_len; + + status = mz_deflateInit(&stream, level); + if (status != MZ_OK) + return status; + + status = mz_deflate(&stream, MZ_FINISH); + if (status != MZ_STREAM_END) + { + mz_deflateEnd(&stream); + return (status == MZ_OK) ? MZ_BUF_ERROR : status; + } + + *pDest_len = stream.total_out; + return mz_deflateEnd(&stream); +} + +int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len) +{ + return mz_compress2(pDest, pDest_len, pSource, source_len, MZ_DEFAULT_COMPRESSION); +} + +mz_ulong mz_compressBound(mz_ulong source_len) +{ + return mz_deflateBound(NULL, source_len); +} + +#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/ + +#ifndef MINIZ_NO_INFLATE_APIS + +typedef struct +{ + tinfl_decompressor m_decomp; + mz_uint m_dict_ofs, m_dict_avail, m_first_call, m_has_flushed; + int m_window_bits; + mz_uint8 m_dict[TINFL_LZ_DICT_SIZE]; + tinfl_status m_last_status; +} inflate_state; + +int mz_inflateInit2(mz_streamp pStream, int window_bits) +{ + inflate_state *pDecomp; + if (!pStream) + return MZ_STREAM_ERROR; + if ((window_bits != MZ_DEFAULT_WINDOW_BITS) && (-window_bits != MZ_DEFAULT_WINDOW_BITS)) + return MZ_PARAM_ERROR; + + pStream->data_type = 0; + pStream->adler = 0; + pStream->msg = NULL; + pStream->total_in = 0; + pStream->total_out = 0; + pStream->reserved = 0; + if (!pStream->zalloc) + pStream->zalloc = miniz_def_alloc_func; + if (!pStream->zfree) + pStream->zfree = miniz_def_free_func; + + pDecomp = (inflate_state *)pStream->zalloc(pStream->opaque, 1, sizeof(inflate_state)); + if (!pDecomp) + return MZ_MEM_ERROR; + + pStream->state = (struct mz_internal_state *)pDecomp; + + tinfl_init(&pDecomp->m_decomp); + pDecomp->m_dict_ofs = 0; + pDecomp->m_dict_avail = 0; + pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT; + pDecomp->m_first_call = 1; + pDecomp->m_has_flushed = 0; + pDecomp->m_window_bits = window_bits; + + return MZ_OK; +} + +int mz_inflateInit(mz_streamp pStream) +{ + return mz_inflateInit2(pStream, MZ_DEFAULT_WINDOW_BITS); +} + +int mz_inflateReset(mz_streamp pStream) +{ + inflate_state *pDecomp; + if (!pStream) + return MZ_STREAM_ERROR; + + pStream->data_type = 0; + pStream->adler = 0; + pStream->msg = NULL; + pStream->total_in = 0; + pStream->total_out = 0; + pStream->reserved = 0; + + pDecomp = (inflate_state *)pStream->state; + + tinfl_init(&pDecomp->m_decomp); + pDecomp->m_dict_ofs = 0; + pDecomp->m_dict_avail = 0; + pDecomp->m_last_status = TINFL_STATUS_NEEDS_MORE_INPUT; + pDecomp->m_first_call = 1; + pDecomp->m_has_flushed = 0; + /* pDecomp->m_window_bits = window_bits */; + + return MZ_OK; +} + +int mz_inflate(mz_streamp pStream, int flush) +{ + inflate_state *pState; + mz_uint n, first_call, decomp_flags = TINFL_FLAG_COMPUTE_ADLER32; + size_t in_bytes, out_bytes, orig_avail_in; + tinfl_status status; + + if ((!pStream) || (!pStream->state)) + return MZ_STREAM_ERROR; + if (flush == MZ_PARTIAL_FLUSH) + flush = MZ_SYNC_FLUSH; + if ((flush) && (flush != MZ_SYNC_FLUSH) && (flush != MZ_FINISH)) + return MZ_STREAM_ERROR; + + pState = (inflate_state *)pStream->state; + if (pState->m_window_bits > 0) + decomp_flags |= TINFL_FLAG_PARSE_ZLIB_HEADER; + orig_avail_in = pStream->avail_in; + + first_call = pState->m_first_call; + pState->m_first_call = 0; + if (pState->m_last_status < 0) + return MZ_DATA_ERROR; + + if (pState->m_has_flushed && (flush != MZ_FINISH)) + return MZ_STREAM_ERROR; + pState->m_has_flushed |= (flush == MZ_FINISH); + + if ((flush == MZ_FINISH) && (first_call)) + { + /* MZ_FINISH on the first call implies that the input and output buffers are large enough to hold the entire compressed/decompressed file. */ + decomp_flags |= TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF; + in_bytes = pStream->avail_in; + out_bytes = pStream->avail_out; + status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pStream->next_out, pStream->next_out, &out_bytes, decomp_flags); + pState->m_last_status = status; + pStream->next_in += (mz_uint)in_bytes; + pStream->avail_in -= (mz_uint)in_bytes; + pStream->total_in += (mz_uint)in_bytes; + pStream->adler = tinfl_get_adler32(&pState->m_decomp); + pStream->next_out += (mz_uint)out_bytes; + pStream->avail_out -= (mz_uint)out_bytes; + pStream->total_out += (mz_uint)out_bytes; + + if (status < 0) + return MZ_DATA_ERROR; + else if (status != TINFL_STATUS_DONE) + { + pState->m_last_status = TINFL_STATUS_FAILED; + return MZ_BUF_ERROR; + } + return MZ_STREAM_END; + } + /* flush != MZ_FINISH then we must assume there's more input. */ + if (flush != MZ_FINISH) + decomp_flags |= TINFL_FLAG_HAS_MORE_INPUT; + + if (pState->m_dict_avail) + { + n = MZ_MIN(pState->m_dict_avail, pStream->avail_out); + memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n); + pStream->next_out += n; + pStream->avail_out -= n; + pStream->total_out += n; + pState->m_dict_avail -= n; + pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1); + return ((pState->m_last_status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK; + } + + for (;;) + { + in_bytes = pStream->avail_in; + out_bytes = TINFL_LZ_DICT_SIZE - pState->m_dict_ofs; + + status = tinfl_decompress(&pState->m_decomp, pStream->next_in, &in_bytes, pState->m_dict, pState->m_dict + pState->m_dict_ofs, &out_bytes, decomp_flags); + pState->m_last_status = status; + + pStream->next_in += (mz_uint)in_bytes; + pStream->avail_in -= (mz_uint)in_bytes; + pStream->total_in += (mz_uint)in_bytes; + pStream->adler = tinfl_get_adler32(&pState->m_decomp); + + pState->m_dict_avail = (mz_uint)out_bytes; + + n = MZ_MIN(pState->m_dict_avail, pStream->avail_out); + memcpy(pStream->next_out, pState->m_dict + pState->m_dict_ofs, n); + pStream->next_out += n; + pStream->avail_out -= n; + pStream->total_out += n; + pState->m_dict_avail -= n; + pState->m_dict_ofs = (pState->m_dict_ofs + n) & (TINFL_LZ_DICT_SIZE - 1); + + if (status < 0) + return MZ_DATA_ERROR; /* Stream is corrupted (there could be some uncompressed data left in the output dictionary - oh well). */ + else if ((status == TINFL_STATUS_NEEDS_MORE_INPUT) && (!orig_avail_in)) + return MZ_BUF_ERROR; /* Signal caller that we can't make forward progress without supplying more input or by setting flush to MZ_FINISH. */ + else if (flush == MZ_FINISH) + { + /* The output buffer MUST be large to hold the remaining uncompressed data when flush==MZ_FINISH. */ + if (status == TINFL_STATUS_DONE) + return pState->m_dict_avail ? MZ_BUF_ERROR : MZ_STREAM_END; + /* status here must be TINFL_STATUS_HAS_MORE_OUTPUT, which means there's at least 1 more byte on the way. If there's no more room left in the output buffer then something is wrong. */ + else if (!pStream->avail_out) + return MZ_BUF_ERROR; + } + else if ((status == TINFL_STATUS_DONE) || (!pStream->avail_in) || (!pStream->avail_out) || (pState->m_dict_avail)) + break; + } + + return ((status == TINFL_STATUS_DONE) && (!pState->m_dict_avail)) ? MZ_STREAM_END : MZ_OK; +} + +int mz_inflateEnd(mz_streamp pStream) +{ + if (!pStream) + return MZ_STREAM_ERROR; + if (pStream->state) + { + pStream->zfree(pStream->opaque, pStream->state); + pStream->state = NULL; + } + return MZ_OK; +} +int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len) +{ + mz_stream stream; + int status; + memset(&stream, 0, sizeof(stream)); + + /* In case mz_ulong is 64-bits (argh I hate longs). */ + if ((mz_uint64)(*pSource_len | *pDest_len) > 0xFFFFFFFFU) + return MZ_PARAM_ERROR; + + stream.next_in = pSource; + stream.avail_in = (mz_uint32)*pSource_len; + stream.next_out = pDest; + stream.avail_out = (mz_uint32)*pDest_len; + + status = mz_inflateInit(&stream); + if (status != MZ_OK) + return status; + + status = mz_inflate(&stream, MZ_FINISH); + *pSource_len = *pSource_len - stream.avail_in; + if (status != MZ_STREAM_END) + { + mz_inflateEnd(&stream); + return ((status == MZ_BUF_ERROR) && (!stream.avail_in)) ? MZ_DATA_ERROR : status; + } + *pDest_len = stream.total_out; + + return mz_inflateEnd(&stream); +} + +int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len) +{ + return mz_uncompress2(pDest, pDest_len, pSource, &source_len); +} + +#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/ + +const char *mz_error(int err) +{ + static struct + { + int m_err; + const char *m_pDesc; + } s_error_descs[] = + { + { MZ_OK, "" }, { MZ_STREAM_END, "stream end" }, { MZ_NEED_DICT, "need dictionary" }, { MZ_ERRNO, "file error" }, { MZ_STREAM_ERROR, "stream error" }, { MZ_DATA_ERROR, "data error" }, { MZ_MEM_ERROR, "out of memory" }, { MZ_BUF_ERROR, "buf error" }, { MZ_VERSION_ERROR, "version error" }, { MZ_PARAM_ERROR, "parameter error" } + }; + mz_uint i; + for (i = 0; i < sizeof(s_error_descs) / sizeof(s_error_descs[0]); ++i) + if (s_error_descs[i].m_err == err) + return s_error_descs[i].m_pDesc; + return NULL; +} + +#endif /*MINIZ_NO_ZLIB_APIS */ + +#ifdef __cplusplus +} +#endif + +/* + This is free and unencumbered software released into the public domain. + + Anyone is free to copy, modify, publish, use, compile, sell, or + distribute this software, either in source code form or as a compiled + binary, for any purpose, commercial or non-commercial, and by any + means. + + In jurisdictions that recognize copyright laws, the author or authors + of this software dedicate any and all copyright interest in the + software to the public domain. We make this dedication for the benefit + of the public at large and to the detriment of our heirs and + successors. We intend this dedication to be an overt act of + relinquishment in perpetuity of all present and future rights to this + software under copyright law. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR + OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + + For more information, please refer to +*/ +/************************************************************************** + * + * Copyright 2013-2014 RAD Game Tools and Valve Software + * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + **************************************************************************/ + + + +#ifndef MINIZ_NO_DEFLATE_APIS + +#ifdef __cplusplus +extern "C" { +#endif + +/* ------------------- Low-level Compression (independent from all decompression API's) */ + +/* Purposely making these tables static for faster init and thread safety. */ +static const mz_uint16 s_tdefl_len_sym[256] = + { + 257, 258, 259, 260, 261, 262, 263, 264, 265, 265, 266, 266, 267, 267, 268, 268, 269, 269, 269, 269, 270, 270, 270, 270, 271, 271, 271, 271, 272, 272, 272, 272, + 273, 273, 273, 273, 273, 273, 273, 273, 274, 274, 274, 274, 274, 274, 274, 274, 275, 275, 275, 275, 275, 275, 275, 275, 276, 276, 276, 276, 276, 276, 276, 276, + 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 277, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, 278, + 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 279, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, 280, + 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, 281, + 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, 282, + 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, 283, + 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 284, 285 + }; + +static const mz_uint8 s_tdefl_len_extra[256] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 0 + }; + +static const mz_uint8 s_tdefl_small_dist_sym[512] = + { + 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, + 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, + 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, + 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, + 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, + 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, + 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, + 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17 + }; + +static const mz_uint8 s_tdefl_small_dist_extra[512] = + { + 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7 + }; + +static const mz_uint8 s_tdefl_large_dist_sym[128] = + { + 0, 0, 18, 19, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, + 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, + 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29 + }; + +static const mz_uint8 s_tdefl_large_dist_extra[128] = + { + 0, 0, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, + 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13 + }; + +/* Radix sorts tdefl_sym_freq[] array by 16-bit key m_key. Returns ptr to sorted values. */ +typedef struct +{ + mz_uint16 m_key, m_sym_index; +} tdefl_sym_freq; +static tdefl_sym_freq *tdefl_radix_sort_syms(mz_uint num_syms, tdefl_sym_freq *pSyms0, tdefl_sym_freq *pSyms1) +{ + mz_uint32 total_passes = 2, pass_shift, pass, i, hist[256 * 2]; + tdefl_sym_freq *pCur_syms = pSyms0, *pNew_syms = pSyms1; + MZ_CLEAR_ARR(hist); + for (i = 0; i < num_syms; i++) + { + mz_uint freq = pSyms0[i].m_key; + hist[freq & 0xFF]++; + hist[256 + ((freq >> 8) & 0xFF)]++; + } + while ((total_passes > 1) && (num_syms == hist[(total_passes - 1) * 256])) + total_passes--; + for (pass_shift = 0, pass = 0; pass < total_passes; pass++, pass_shift += 8) + { + const mz_uint32 *pHist = &hist[pass << 8]; + mz_uint offsets[256], cur_ofs = 0; + for (i = 0; i < 256; i++) + { + offsets[i] = cur_ofs; + cur_ofs += pHist[i]; + } + for (i = 0; i < num_syms; i++) + pNew_syms[offsets[(pCur_syms[i].m_key >> pass_shift) & 0xFF]++] = pCur_syms[i]; + { + tdefl_sym_freq *t = pCur_syms; + pCur_syms = pNew_syms; + pNew_syms = t; + } + } + return pCur_syms; +} + +/* tdefl_calculate_minimum_redundancy() originally written by: Alistair Moffat, alistair@cs.mu.oz.au, Jyrki Katajainen, jyrki@diku.dk, November 1996. */ +static void tdefl_calculate_minimum_redundancy(tdefl_sym_freq *A, int n) +{ + int root, leaf, next, avbl, used, dpth; + if (n == 0) + return; + else if (n == 1) + { + A[0].m_key = 1; + return; + } + A[0].m_key += A[1].m_key; + root = 0; + leaf = 2; + for (next = 1; next < n - 1; next++) + { + if (leaf >= n || A[root].m_key < A[leaf].m_key) + { + A[next].m_key = A[root].m_key; + A[root++].m_key = (mz_uint16)next; + } + else + A[next].m_key = A[leaf++].m_key; + if (leaf >= n || (root < next && A[root].m_key < A[leaf].m_key)) + { + A[next].m_key = (mz_uint16)(A[next].m_key + A[root].m_key); + A[root++].m_key = (mz_uint16)next; + } + else + A[next].m_key = (mz_uint16)(A[next].m_key + A[leaf++].m_key); + } + A[n - 2].m_key = 0; + for (next = n - 3; next >= 0; next--) + A[next].m_key = A[A[next].m_key].m_key + 1; + avbl = 1; + used = dpth = 0; + root = n - 2; + next = n - 1; + while (avbl > 0) + { + while (root >= 0 && (int)A[root].m_key == dpth) + { + used++; + root--; + } + while (avbl > used) + { + A[next--].m_key = (mz_uint16)(dpth); + avbl--; + } + avbl = 2 * used; + dpth++; + used = 0; + } +} + +/* Limits canonical Huffman code table's max code size. */ +enum +{ + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE = 32 +}; +static void tdefl_huffman_enforce_max_code_size(int *pNum_codes, int code_list_len, int max_code_size) +{ + int i; + mz_uint32 total = 0; + if (code_list_len <= 1) + return; + for (i = max_code_size + 1; i <= TDEFL_MAX_SUPPORTED_HUFF_CODESIZE; i++) + pNum_codes[max_code_size] += pNum_codes[i]; + for (i = max_code_size; i > 0; i--) + total += (((mz_uint32)pNum_codes[i]) << (max_code_size - i)); + while (total != (1UL << max_code_size)) + { + pNum_codes[max_code_size]--; + for (i = max_code_size - 1; i > 0; i--) + if (pNum_codes[i]) + { + pNum_codes[i]--; + pNum_codes[i + 1] += 2; + break; + } + total--; + } +} + +static void tdefl_optimize_huffman_table(tdefl_compressor *d, int table_num, int table_len, int code_size_limit, int static_table) +{ + int i, j, l, num_codes[1 + TDEFL_MAX_SUPPORTED_HUFF_CODESIZE]; + mz_uint next_code[TDEFL_MAX_SUPPORTED_HUFF_CODESIZE + 1]; + MZ_CLEAR_ARR(num_codes); + if (static_table) + { + for (i = 0; i < table_len; i++) + num_codes[d->m_huff_code_sizes[table_num][i]]++; + } + else + { + tdefl_sym_freq syms0[TDEFL_MAX_HUFF_SYMBOLS], syms1[TDEFL_MAX_HUFF_SYMBOLS], *pSyms; + int num_used_syms = 0; + const mz_uint16 *pSym_count = &d->m_huff_count[table_num][0]; + for (i = 0; i < table_len; i++) + if (pSym_count[i]) + { + syms0[num_used_syms].m_key = (mz_uint16)pSym_count[i]; + syms0[num_used_syms++].m_sym_index = (mz_uint16)i; + } + + pSyms = tdefl_radix_sort_syms(num_used_syms, syms0, syms1); + tdefl_calculate_minimum_redundancy(pSyms, num_used_syms); + + for (i = 0; i < num_used_syms; i++) + num_codes[pSyms[i].m_key]++; + + tdefl_huffman_enforce_max_code_size(num_codes, num_used_syms, code_size_limit); + + MZ_CLEAR_ARR(d->m_huff_code_sizes[table_num]); + MZ_CLEAR_ARR(d->m_huff_codes[table_num]); + for (i = 1, j = num_used_syms; i <= code_size_limit; i++) + for (l = num_codes[i]; l > 0; l--) + d->m_huff_code_sizes[table_num][pSyms[--j].m_sym_index] = (mz_uint8)(i); + } + + next_code[1] = 0; + for (j = 0, i = 2; i <= code_size_limit; i++) + next_code[i] = j = ((j + num_codes[i - 1]) << 1); + + for (i = 0; i < table_len; i++) + { + mz_uint rev_code = 0, code, code_size; + if ((code_size = d->m_huff_code_sizes[table_num][i]) == 0) + continue; + code = next_code[code_size]++; + for (l = code_size; l > 0; l--, code >>= 1) + rev_code = (rev_code << 1) | (code & 1); + d->m_huff_codes[table_num][i] = (mz_uint16)rev_code; + } +} + +#define TDEFL_PUT_BITS(b, l) \ + do \ + { \ + mz_uint bits = b; \ + mz_uint len = l; \ + MZ_ASSERT(bits <= ((1U << len) - 1U)); \ + d->m_bit_buffer |= (bits << d->m_bits_in); \ + d->m_bits_in += len; \ + while (d->m_bits_in >= 8) \ + { \ + if (d->m_pOutput_buf < d->m_pOutput_buf_end) \ + *d->m_pOutput_buf++ = (mz_uint8)(d->m_bit_buffer); \ + d->m_bit_buffer >>= 8; \ + d->m_bits_in -= 8; \ + } \ + } \ + MZ_MACRO_END + +#define TDEFL_RLE_PREV_CODE_SIZE() \ + { \ + if (rle_repeat_count) \ + { \ + if (rle_repeat_count < 3) \ + { \ + d->m_huff_count[2][prev_code_size] = (mz_uint16)(d->m_huff_count[2][prev_code_size] + rle_repeat_count); \ + while (rle_repeat_count--) \ + packed_code_sizes[num_packed_code_sizes++] = prev_code_size; \ + } \ + else \ + { \ + d->m_huff_count[2][16] = (mz_uint16)(d->m_huff_count[2][16] + 1); \ + packed_code_sizes[num_packed_code_sizes++] = 16; \ + packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_repeat_count - 3); \ + } \ + rle_repeat_count = 0; \ + } \ + } + +#define TDEFL_RLE_ZERO_CODE_SIZE() \ + { \ + if (rle_z_count) \ + { \ + if (rle_z_count < 3) \ + { \ + d->m_huff_count[2][0] = (mz_uint16)(d->m_huff_count[2][0] + rle_z_count); \ + while (rle_z_count--) \ + packed_code_sizes[num_packed_code_sizes++] = 0; \ + } \ + else if (rle_z_count <= 10) \ + { \ + d->m_huff_count[2][17] = (mz_uint16)(d->m_huff_count[2][17] + 1); \ + packed_code_sizes[num_packed_code_sizes++] = 17; \ + packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 3); \ + } \ + else \ + { \ + d->m_huff_count[2][18] = (mz_uint16)(d->m_huff_count[2][18] + 1); \ + packed_code_sizes[num_packed_code_sizes++] = 18; \ + packed_code_sizes[num_packed_code_sizes++] = (mz_uint8)(rle_z_count - 11); \ + } \ + rle_z_count = 0; \ + } \ + } + +static const mz_uint8 s_tdefl_packed_code_size_syms_swizzle[] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 }; + +static void tdefl_start_dynamic_block(tdefl_compressor *d) +{ + int num_lit_codes, num_dist_codes, num_bit_lengths; + mz_uint i, total_code_sizes_to_pack, num_packed_code_sizes, rle_z_count, rle_repeat_count, packed_code_sizes_index; + mz_uint8 code_sizes_to_pack[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], packed_code_sizes[TDEFL_MAX_HUFF_SYMBOLS_0 + TDEFL_MAX_HUFF_SYMBOLS_1], prev_code_size = 0xFF; + + d->m_huff_count[0][256] = 1; + + tdefl_optimize_huffman_table(d, 0, TDEFL_MAX_HUFF_SYMBOLS_0, 15, MZ_FALSE); + tdefl_optimize_huffman_table(d, 1, TDEFL_MAX_HUFF_SYMBOLS_1, 15, MZ_FALSE); + + for (num_lit_codes = 286; num_lit_codes > 257; num_lit_codes--) + if (d->m_huff_code_sizes[0][num_lit_codes - 1]) + break; + for (num_dist_codes = 30; num_dist_codes > 1; num_dist_codes--) + if (d->m_huff_code_sizes[1][num_dist_codes - 1]) + break; + + memcpy(code_sizes_to_pack, &d->m_huff_code_sizes[0][0], num_lit_codes); + memcpy(code_sizes_to_pack + num_lit_codes, &d->m_huff_code_sizes[1][0], num_dist_codes); + total_code_sizes_to_pack = num_lit_codes + num_dist_codes; + num_packed_code_sizes = 0; + rle_z_count = 0; + rle_repeat_count = 0; + + memset(&d->m_huff_count[2][0], 0, sizeof(d->m_huff_count[2][0]) * TDEFL_MAX_HUFF_SYMBOLS_2); + for (i = 0; i < total_code_sizes_to_pack; i++) + { + mz_uint8 code_size = code_sizes_to_pack[i]; + if (!code_size) + { + TDEFL_RLE_PREV_CODE_SIZE(); + if (++rle_z_count == 138) + { + TDEFL_RLE_ZERO_CODE_SIZE(); + } + } + else + { + TDEFL_RLE_ZERO_CODE_SIZE(); + if (code_size != prev_code_size) + { + TDEFL_RLE_PREV_CODE_SIZE(); + d->m_huff_count[2][code_size] = (mz_uint16)(d->m_huff_count[2][code_size] + 1); + packed_code_sizes[num_packed_code_sizes++] = code_size; + } + else if (++rle_repeat_count == 6) + { + TDEFL_RLE_PREV_CODE_SIZE(); + } + } + prev_code_size = code_size; + } + if (rle_repeat_count) + { + TDEFL_RLE_PREV_CODE_SIZE(); + } + else + { + TDEFL_RLE_ZERO_CODE_SIZE(); + } + + tdefl_optimize_huffman_table(d, 2, TDEFL_MAX_HUFF_SYMBOLS_2, 7, MZ_FALSE); + + TDEFL_PUT_BITS(2, 2); + + TDEFL_PUT_BITS(num_lit_codes - 257, 5); + TDEFL_PUT_BITS(num_dist_codes - 1, 5); + + for (num_bit_lengths = 18; num_bit_lengths >= 0; num_bit_lengths--) + if (d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[num_bit_lengths]]) + break; + num_bit_lengths = MZ_MAX(4, (num_bit_lengths + 1)); + TDEFL_PUT_BITS(num_bit_lengths - 4, 4); + for (i = 0; (int)i < num_bit_lengths; i++) + TDEFL_PUT_BITS(d->m_huff_code_sizes[2][s_tdefl_packed_code_size_syms_swizzle[i]], 3); + + for (packed_code_sizes_index = 0; packed_code_sizes_index < num_packed_code_sizes;) + { + mz_uint code = packed_code_sizes[packed_code_sizes_index++]; + MZ_ASSERT(code < TDEFL_MAX_HUFF_SYMBOLS_2); + TDEFL_PUT_BITS(d->m_huff_codes[2][code], d->m_huff_code_sizes[2][code]); + if (code >= 16) + TDEFL_PUT_BITS(packed_code_sizes[packed_code_sizes_index++], "\02\03\07"[code - 16]); + } +} + +static void tdefl_start_static_block(tdefl_compressor *d) +{ + mz_uint i; + mz_uint8 *p = &d->m_huff_code_sizes[0][0]; + + for (i = 0; i <= 143; ++i) + *p++ = 8; + for (; i <= 255; ++i) + *p++ = 9; + for (; i <= 279; ++i) + *p++ = 7; + for (; i <= 287; ++i) + *p++ = 8; + + memset(d->m_huff_code_sizes[1], 5, 32); + + tdefl_optimize_huffman_table(d, 0, 288, 15, MZ_TRUE); + tdefl_optimize_huffman_table(d, 1, 32, 15, MZ_TRUE); + + TDEFL_PUT_BITS(1, 2); +} + +static const mz_uint mz_bitmasks[17] = { 0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF }; + +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS +static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) +{ + mz_uint flags; + mz_uint8 *pLZ_codes; + mz_uint8 *pOutput_buf = d->m_pOutput_buf; + mz_uint8 *pLZ_code_buf_end = d->m_pLZ_code_buf; + mz_uint64 bit_buffer = d->m_bit_buffer; + mz_uint bits_in = d->m_bits_in; + +#define TDEFL_PUT_BITS_FAST(b, l) \ + { \ + bit_buffer |= (((mz_uint64)(b)) << bits_in); \ + bits_in += (l); \ + } + + flags = 1; + for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < pLZ_code_buf_end; flags >>= 1) + { + if (flags == 1) + flags = *pLZ_codes++ | 0x100; + + if (flags & 1) + { + mz_uint s0, s1, n0, n1, sym, num_extra_bits; + mz_uint match_len = pLZ_codes[0]; + mz_uint match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8)); + pLZ_codes += 3; + + MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); + TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); + TDEFL_PUT_BITS_FAST(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]); + + /* This sequence coaxes MSVC into using cmov's vs. jmp's. */ + s0 = s_tdefl_small_dist_sym[match_dist & 511]; + n0 = s_tdefl_small_dist_extra[match_dist & 511]; + s1 = s_tdefl_large_dist_sym[match_dist >> 8]; + n1 = s_tdefl_large_dist_extra[match_dist >> 8]; + sym = (match_dist < 512) ? s0 : s1; + num_extra_bits = (match_dist < 512) ? n0 : n1; + + MZ_ASSERT(d->m_huff_code_sizes[1][sym]); + TDEFL_PUT_BITS_FAST(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]); + TDEFL_PUT_BITS_FAST(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits); + } + else + { + mz_uint lit = *pLZ_codes++; + MZ_ASSERT(d->m_huff_code_sizes[0][lit]); + TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]); + + if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) + { + flags >>= 1; + lit = *pLZ_codes++; + MZ_ASSERT(d->m_huff_code_sizes[0][lit]); + TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]); + + if (((flags & 2) == 0) && (pLZ_codes < pLZ_code_buf_end)) + { + flags >>= 1; + lit = *pLZ_codes++; + MZ_ASSERT(d->m_huff_code_sizes[0][lit]); + TDEFL_PUT_BITS_FAST(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]); + } + } + } + + if (pOutput_buf >= d->m_pOutput_buf_end) + return MZ_FALSE; + + memcpy(pOutput_buf, &bit_buffer, sizeof(mz_uint64)); + pOutput_buf += (bits_in >> 3); + bit_buffer >>= (bits_in & ~7); + bits_in &= 7; + } + +#undef TDEFL_PUT_BITS_FAST + + d->m_pOutput_buf = pOutput_buf; + d->m_bits_in = 0; + d->m_bit_buffer = 0; + + while (bits_in) + { + mz_uint32 n = MZ_MIN(bits_in, 16); + TDEFL_PUT_BITS((mz_uint)bit_buffer & mz_bitmasks[n], n); + bit_buffer >>= n; + bits_in -= n; + } + + TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]); + + return (d->m_pOutput_buf < d->m_pOutput_buf_end); +} +#else +static mz_bool tdefl_compress_lz_codes(tdefl_compressor *d) +{ + mz_uint flags; + mz_uint8 *pLZ_codes; + + flags = 1; + for (pLZ_codes = d->m_lz_code_buf; pLZ_codes < d->m_pLZ_code_buf; flags >>= 1) + { + if (flags == 1) + flags = *pLZ_codes++ | 0x100; + if (flags & 1) + { + mz_uint sym, num_extra_bits; + mz_uint match_len = pLZ_codes[0], match_dist = (pLZ_codes[1] | (pLZ_codes[2] << 8)); + pLZ_codes += 3; + + MZ_ASSERT(d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); + TDEFL_PUT_BITS(d->m_huff_codes[0][s_tdefl_len_sym[match_len]], d->m_huff_code_sizes[0][s_tdefl_len_sym[match_len]]); + TDEFL_PUT_BITS(match_len & mz_bitmasks[s_tdefl_len_extra[match_len]], s_tdefl_len_extra[match_len]); + + if (match_dist < 512) + { + sym = s_tdefl_small_dist_sym[match_dist]; + num_extra_bits = s_tdefl_small_dist_extra[match_dist]; + } + else + { + sym = s_tdefl_large_dist_sym[match_dist >> 8]; + num_extra_bits = s_tdefl_large_dist_extra[match_dist >> 8]; + } + MZ_ASSERT(d->m_huff_code_sizes[1][sym]); + TDEFL_PUT_BITS(d->m_huff_codes[1][sym], d->m_huff_code_sizes[1][sym]); + TDEFL_PUT_BITS(match_dist & mz_bitmasks[num_extra_bits], num_extra_bits); + } + else + { + mz_uint lit = *pLZ_codes++; + MZ_ASSERT(d->m_huff_code_sizes[0][lit]); + TDEFL_PUT_BITS(d->m_huff_codes[0][lit], d->m_huff_code_sizes[0][lit]); + } + } + + TDEFL_PUT_BITS(d->m_huff_codes[0][256], d->m_huff_code_sizes[0][256]); + + return (d->m_pOutput_buf < d->m_pOutput_buf_end); +} +#endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN && MINIZ_HAS_64BIT_REGISTERS */ + +static mz_bool tdefl_compress_block(tdefl_compressor *d, mz_bool static_block) +{ + if (static_block) + tdefl_start_static_block(d); + else + tdefl_start_dynamic_block(d); + return tdefl_compress_lz_codes(d); +} + +static const mz_uint s_tdefl_num_probes[11]; + +static int tdefl_flush_block(tdefl_compressor *d, int flush) +{ + mz_uint saved_bit_buf, saved_bits_in; + mz_uint8 *pSaved_output_buf; + mz_bool comp_block_succeeded = MZ_FALSE; + int n, use_raw_block = ((d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS) != 0) && (d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size; + mz_uint8 *pOutput_buf_start = ((d->m_pPut_buf_func == NULL) && ((*d->m_pOut_buf_size - d->m_out_buf_ofs) >= TDEFL_OUT_BUF_SIZE)) ? ((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs) : d->m_output_buf; + + d->m_pOutput_buf = pOutput_buf_start; + d->m_pOutput_buf_end = d->m_pOutput_buf + TDEFL_OUT_BUF_SIZE - 16; + + MZ_ASSERT(!d->m_output_flush_remaining); + d->m_output_flush_ofs = 0; + d->m_output_flush_remaining = 0; + + *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> d->m_num_flags_left); + d->m_pLZ_code_buf -= (d->m_num_flags_left == 8); + + if ((d->m_flags & TDEFL_WRITE_ZLIB_HEADER) && (!d->m_block_index)) + { + const mz_uint8 cmf = 0x78; + mz_uint8 flg, flevel = 3; + mz_uint header, i, mz_un = sizeof(s_tdefl_num_probes) / sizeof(mz_uint); + + /* Determine compression level by reversing the process in tdefl_create_comp_flags_from_zip_params() */ + for (i = 0; i < mz_un; i++) + if (s_tdefl_num_probes[i] == (d->m_flags & 0xFFF)) break; + + if (i < 2) + flevel = 0; + else if (i < 6) + flevel = 1; + else if (i == 6) + flevel = 2; + + header = cmf << 8 | (flevel << 6); + header += 31 - (header % 31); + flg = header & 0xFF; + + TDEFL_PUT_BITS(cmf, 8); + TDEFL_PUT_BITS(flg, 8); + } + + TDEFL_PUT_BITS(flush == TDEFL_FINISH, 1); + + pSaved_output_buf = d->m_pOutput_buf; + saved_bit_buf = d->m_bit_buffer; + saved_bits_in = d->m_bits_in; + + if (!use_raw_block) + comp_block_succeeded = tdefl_compress_block(d, (d->m_flags & TDEFL_FORCE_ALL_STATIC_BLOCKS) || (d->m_total_lz_bytes < 48)); + + /* If the block gets expanded, forget the current contents of the output buffer and send a raw block instead. */ + if (((use_raw_block) || ((d->m_total_lz_bytes) && ((d->m_pOutput_buf - pSaved_output_buf + 1U) >= d->m_total_lz_bytes))) && + ((d->m_lookahead_pos - d->m_lz_code_buf_dict_pos) <= d->m_dict_size)) + { + mz_uint i; + d->m_pOutput_buf = pSaved_output_buf; + d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in; + TDEFL_PUT_BITS(0, 2); + if (d->m_bits_in) + { + TDEFL_PUT_BITS(0, 8 - d->m_bits_in); + } + for (i = 2; i; --i, d->m_total_lz_bytes ^= 0xFFFF) + { + TDEFL_PUT_BITS(d->m_total_lz_bytes & 0xFFFF, 16); + } + for (i = 0; i < d->m_total_lz_bytes; ++i) + { + TDEFL_PUT_BITS(d->m_dict[(d->m_lz_code_buf_dict_pos + i) & TDEFL_LZ_DICT_SIZE_MASK], 8); + } + } + /* Check for the extremely unlikely (if not impossible) case of the compressed block not fitting into the output buffer when using dynamic codes. */ + else if (!comp_block_succeeded) + { + d->m_pOutput_buf = pSaved_output_buf; + d->m_bit_buffer = saved_bit_buf, d->m_bits_in = saved_bits_in; + tdefl_compress_block(d, MZ_TRUE); + } + + if (flush) + { + if (flush == TDEFL_FINISH) + { + if (d->m_bits_in) + { + TDEFL_PUT_BITS(0, 8 - d->m_bits_in); + } + if (d->m_flags & TDEFL_WRITE_ZLIB_HEADER) + { + mz_uint i, a = d->m_adler32; + for (i = 0; i < 4; i++) + { + TDEFL_PUT_BITS((a >> 24) & 0xFF, 8); + a <<= 8; + } + } + } + else + { + mz_uint i, z = 0; + TDEFL_PUT_BITS(0, 3); + if (d->m_bits_in) + { + TDEFL_PUT_BITS(0, 8 - d->m_bits_in); + } + for (i = 2; i; --i, z ^= 0xFFFF) + { + TDEFL_PUT_BITS(z & 0xFFFF, 16); + } + } + } + + MZ_ASSERT(d->m_pOutput_buf < d->m_pOutput_buf_end); + + memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0); + memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1); + + d->m_pLZ_code_buf = d->m_lz_code_buf + 1; + d->m_pLZ_flags = d->m_lz_code_buf; + d->m_num_flags_left = 8; + d->m_lz_code_buf_dict_pos += d->m_total_lz_bytes; + d->m_total_lz_bytes = 0; + d->m_block_index++; + + if ((n = (int)(d->m_pOutput_buf - pOutput_buf_start)) != 0) + { + if (d->m_pPut_buf_func) + { + *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf; + if (!(*d->m_pPut_buf_func)(d->m_output_buf, n, d->m_pPut_buf_user)) + return (d->m_prev_return_status = TDEFL_STATUS_PUT_BUF_FAILED); + } + else if (pOutput_buf_start == d->m_output_buf) + { + int bytes_to_copy = (int)MZ_MIN((size_t)n, (size_t)(*d->m_pOut_buf_size - d->m_out_buf_ofs)); + memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf, bytes_to_copy); + d->m_out_buf_ofs += bytes_to_copy; + if ((n -= bytes_to_copy) != 0) + { + d->m_output_flush_ofs = bytes_to_copy; + d->m_output_flush_remaining = n; + } + } + else + { + d->m_out_buf_ofs += n; + } + } + + return d->m_output_flush_remaining; +} + +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES +#ifdef MINIZ_UNALIGNED_USE_MEMCPY +static mz_uint16 TDEFL_READ_UNALIGNED_WORD(const mz_uint8* p) +{ + mz_uint16 ret; + memcpy(&ret, p, sizeof(mz_uint16)); + return ret; +} +static mz_uint16 TDEFL_READ_UNALIGNED_WORD2(const mz_uint16* p) +{ + mz_uint16 ret; + memcpy(&ret, p, sizeof(mz_uint16)); + return ret; +} +#else +#define TDEFL_READ_UNALIGNED_WORD(p) *(const mz_uint16 *)(p) +#define TDEFL_READ_UNALIGNED_WORD2(p) *(const mz_uint16 *)(p) +#endif +static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len) +{ + mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len; + mz_uint num_probes_left = d->m_max_probes[match_len >= 32]; + const mz_uint16 *s = (const mz_uint16 *)(d->m_dict + pos), *p, *q; + mz_uint16 c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]), s01 = TDEFL_READ_UNALIGNED_WORD2(s); + MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); + if (max_match_len <= match_len) + return; + for (;;) + { + for (;;) + { + if (--num_probes_left == 0) + return; +#define TDEFL_PROBE \ + next_probe_pos = d->m_next[probe_pos]; \ + if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) \ + return; \ + probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \ + if (TDEFL_READ_UNALIGNED_WORD(&d->m_dict[probe_pos + match_len - 1]) == c01) \ + break; + TDEFL_PROBE; + TDEFL_PROBE; + TDEFL_PROBE; + } + if (!dist) + break; + q = (const mz_uint16 *)(d->m_dict + probe_pos); + if (TDEFL_READ_UNALIGNED_WORD2(q) != s01) + continue; + p = s; + probe_len = 32; + do + { + } while ((TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && + (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (--probe_len > 0)); + if (!probe_len) + { + *pMatch_dist = dist; + *pMatch_len = MZ_MIN(max_match_len, (mz_uint)TDEFL_MAX_MATCH_LEN); + break; + } + else if ((probe_len = ((mz_uint)(p - s) * 2) + (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q)) > match_len) + { + *pMatch_dist = dist; + if ((*pMatch_len = match_len = MZ_MIN(max_match_len, probe_len)) == max_match_len) + break; + c01 = TDEFL_READ_UNALIGNED_WORD(&d->m_dict[pos + match_len - 1]); + } + } +} +#else +static MZ_FORCEINLINE void tdefl_find_match(tdefl_compressor *d, mz_uint lookahead_pos, mz_uint max_dist, mz_uint max_match_len, mz_uint *pMatch_dist, mz_uint *pMatch_len) +{ + mz_uint dist, pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK, match_len = *pMatch_len, probe_pos = pos, next_probe_pos, probe_len; + mz_uint num_probes_left = d->m_max_probes[match_len >= 32]; + const mz_uint8 *s = d->m_dict + pos, *p, *q; + mz_uint8 c0 = d->m_dict[pos + match_len], c1 = d->m_dict[pos + match_len - 1]; + MZ_ASSERT(max_match_len <= TDEFL_MAX_MATCH_LEN); + if (max_match_len <= match_len) + return; + for (;;) + { + for (;;) + { + if (--num_probes_left == 0) + return; +#define TDEFL_PROBE \ + next_probe_pos = d->m_next[probe_pos]; \ + if ((!next_probe_pos) || ((dist = (mz_uint16)(lookahead_pos - next_probe_pos)) > max_dist)) \ + return; \ + probe_pos = next_probe_pos & TDEFL_LZ_DICT_SIZE_MASK; \ + if ((d->m_dict[probe_pos + match_len] == c0) && (d->m_dict[probe_pos + match_len - 1] == c1)) \ + break; + TDEFL_PROBE; + TDEFL_PROBE; + TDEFL_PROBE; + } + if (!dist) + break; + p = s; + q = d->m_dict + probe_pos; + for (probe_len = 0; probe_len < max_match_len; probe_len++) + if (*p++ != *q++) + break; + if (probe_len > match_len) + { + *pMatch_dist = dist; + if ((*pMatch_len = match_len = probe_len) == max_match_len) + return; + c0 = d->m_dict[pos + match_len]; + c1 = d->m_dict[pos + match_len - 1]; + } + } +} +#endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES */ + +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN +#ifdef MINIZ_UNALIGNED_USE_MEMCPY +static mz_uint32 TDEFL_READ_UNALIGNED_WORD32(const mz_uint8* p) +{ + mz_uint32 ret; + memcpy(&ret, p, sizeof(mz_uint32)); + return ret; +} +#else +#define TDEFL_READ_UNALIGNED_WORD32(p) *(const mz_uint32 *)(p) +#endif +static mz_bool tdefl_compress_fast(tdefl_compressor *d) +{ + /* Faster, minimally featured LZRW1-style match+parse loop with better register utilization. Intended for applications where raw throughput is valued more highly than ratio. */ + mz_uint lookahead_pos = d->m_lookahead_pos, lookahead_size = d->m_lookahead_size, dict_size = d->m_dict_size, total_lz_bytes = d->m_total_lz_bytes, num_flags_left = d->m_num_flags_left; + mz_uint8 *pLZ_code_buf = d->m_pLZ_code_buf, *pLZ_flags = d->m_pLZ_flags; + mz_uint cur_pos = lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK; + + while ((d->m_src_buf_left) || ((d->m_flush) && (lookahead_size))) + { + const mz_uint TDEFL_COMP_FAST_LOOKAHEAD_SIZE = 4096; + mz_uint dst_pos = (lookahead_pos + lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK; + mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(d->m_src_buf_left, TDEFL_COMP_FAST_LOOKAHEAD_SIZE - lookahead_size); + d->m_src_buf_left -= num_bytes_to_process; + lookahead_size += num_bytes_to_process; + + while (num_bytes_to_process) + { + mz_uint32 n = MZ_MIN(TDEFL_LZ_DICT_SIZE - dst_pos, num_bytes_to_process); + memcpy(d->m_dict + dst_pos, d->m_pSrc, n); + if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) + memcpy(d->m_dict + TDEFL_LZ_DICT_SIZE + dst_pos, d->m_pSrc, MZ_MIN(n, (TDEFL_MAX_MATCH_LEN - 1) - dst_pos)); + d->m_pSrc += n; + dst_pos = (dst_pos + n) & TDEFL_LZ_DICT_SIZE_MASK; + num_bytes_to_process -= n; + } + + dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - lookahead_size, dict_size); + if ((!d->m_flush) && (lookahead_size < TDEFL_COMP_FAST_LOOKAHEAD_SIZE)) + break; + + while (lookahead_size >= 4) + { + mz_uint cur_match_dist, cur_match_len = 1; + mz_uint8 *pCur_dict = d->m_dict + cur_pos; + mz_uint first_trigram = TDEFL_READ_UNALIGNED_WORD32(pCur_dict) & 0xFFFFFF; + mz_uint hash = (first_trigram ^ (first_trigram >> (24 - (TDEFL_LZ_HASH_BITS - 8)))) & TDEFL_LEVEL1_HASH_SIZE_MASK; + mz_uint probe_pos = d->m_hash[hash]; + d->m_hash[hash] = (mz_uint16)lookahead_pos; + + if (((cur_match_dist = (mz_uint16)(lookahead_pos - probe_pos)) <= dict_size) && ((TDEFL_READ_UNALIGNED_WORD32(d->m_dict + (probe_pos &= TDEFL_LZ_DICT_SIZE_MASK)) & 0xFFFFFF) == first_trigram)) + { + const mz_uint16 *p = (const mz_uint16 *)pCur_dict; + const mz_uint16 *q = (const mz_uint16 *)(d->m_dict + probe_pos); + mz_uint32 probe_len = 32; + do + { + } while ((TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && + (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (TDEFL_READ_UNALIGNED_WORD2(++p) == TDEFL_READ_UNALIGNED_WORD2(++q)) && (--probe_len > 0)); + cur_match_len = ((mz_uint)(p - (const mz_uint16 *)pCur_dict) * 2) + (mz_uint)(*(const mz_uint8 *)p == *(const mz_uint8 *)q); + if (!probe_len) + cur_match_len = cur_match_dist ? TDEFL_MAX_MATCH_LEN : 0; + + if ((cur_match_len < TDEFL_MIN_MATCH_LEN) || ((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U * 1024U))) + { + cur_match_len = 1; + *pLZ_code_buf++ = (mz_uint8)first_trigram; + *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); + d->m_huff_count[0][(mz_uint8)first_trigram]++; + } + else + { + mz_uint32 s0, s1; + cur_match_len = MZ_MIN(cur_match_len, lookahead_size); + + MZ_ASSERT((cur_match_len >= TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 1) && (cur_match_dist <= TDEFL_LZ_DICT_SIZE)); + + cur_match_dist--; + + pLZ_code_buf[0] = (mz_uint8)(cur_match_len - TDEFL_MIN_MATCH_LEN); +#ifdef MINIZ_UNALIGNED_USE_MEMCPY + memcpy(&pLZ_code_buf[1], &cur_match_dist, sizeof(cur_match_dist)); +#else + *(mz_uint16 *)(&pLZ_code_buf[1]) = (mz_uint16)cur_match_dist; +#endif + pLZ_code_buf += 3; + *pLZ_flags = (mz_uint8)((*pLZ_flags >> 1) | 0x80); + + s0 = s_tdefl_small_dist_sym[cur_match_dist & 511]; + s1 = s_tdefl_large_dist_sym[cur_match_dist >> 8]; + d->m_huff_count[1][(cur_match_dist < 512) ? s0 : s1]++; + + d->m_huff_count[0][s_tdefl_len_sym[cur_match_len - TDEFL_MIN_MATCH_LEN]]++; + } + } + else + { + *pLZ_code_buf++ = (mz_uint8)first_trigram; + *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); + d->m_huff_count[0][(mz_uint8)first_trigram]++; + } + + if (--num_flags_left == 0) + { + num_flags_left = 8; + pLZ_flags = pLZ_code_buf++; + } + + total_lz_bytes += cur_match_len; + lookahead_pos += cur_match_len; + dict_size = MZ_MIN(dict_size + cur_match_len, (mz_uint)TDEFL_LZ_DICT_SIZE); + cur_pos = (cur_pos + cur_match_len) & TDEFL_LZ_DICT_SIZE_MASK; + MZ_ASSERT(lookahead_size >= cur_match_len); + lookahead_size -= cur_match_len; + + if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) + { + int n; + d->m_lookahead_pos = lookahead_pos; + d->m_lookahead_size = lookahead_size; + d->m_dict_size = dict_size; + d->m_total_lz_bytes = total_lz_bytes; + d->m_pLZ_code_buf = pLZ_code_buf; + d->m_pLZ_flags = pLZ_flags; + d->m_num_flags_left = num_flags_left; + if ((n = tdefl_flush_block(d, 0)) != 0) + return (n < 0) ? MZ_FALSE : MZ_TRUE; + total_lz_bytes = d->m_total_lz_bytes; + pLZ_code_buf = d->m_pLZ_code_buf; + pLZ_flags = d->m_pLZ_flags; + num_flags_left = d->m_num_flags_left; + } + } + + while (lookahead_size) + { + mz_uint8 lit = d->m_dict[cur_pos]; + + total_lz_bytes++; + *pLZ_code_buf++ = lit; + *pLZ_flags = (mz_uint8)(*pLZ_flags >> 1); + if (--num_flags_left == 0) + { + num_flags_left = 8; + pLZ_flags = pLZ_code_buf++; + } + + d->m_huff_count[0][lit]++; + + lookahead_pos++; + dict_size = MZ_MIN(dict_size + 1, (mz_uint)TDEFL_LZ_DICT_SIZE); + cur_pos = (cur_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK; + lookahead_size--; + + if (pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) + { + int n; + d->m_lookahead_pos = lookahead_pos; + d->m_lookahead_size = lookahead_size; + d->m_dict_size = dict_size; + d->m_total_lz_bytes = total_lz_bytes; + d->m_pLZ_code_buf = pLZ_code_buf; + d->m_pLZ_flags = pLZ_flags; + d->m_num_flags_left = num_flags_left; + if ((n = tdefl_flush_block(d, 0)) != 0) + return (n < 0) ? MZ_FALSE : MZ_TRUE; + total_lz_bytes = d->m_total_lz_bytes; + pLZ_code_buf = d->m_pLZ_code_buf; + pLZ_flags = d->m_pLZ_flags; + num_flags_left = d->m_num_flags_left; + } + } + } + + d->m_lookahead_pos = lookahead_pos; + d->m_lookahead_size = lookahead_size; + d->m_dict_size = dict_size; + d->m_total_lz_bytes = total_lz_bytes; + d->m_pLZ_code_buf = pLZ_code_buf; + d->m_pLZ_flags = pLZ_flags; + d->m_num_flags_left = num_flags_left; + return MZ_TRUE; +} +#endif /* MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN */ + +static MZ_FORCEINLINE void tdefl_record_literal(tdefl_compressor *d, mz_uint8 lit) +{ + d->m_total_lz_bytes++; + *d->m_pLZ_code_buf++ = lit; + *d->m_pLZ_flags = (mz_uint8)(*d->m_pLZ_flags >> 1); + if (--d->m_num_flags_left == 0) + { + d->m_num_flags_left = 8; + d->m_pLZ_flags = d->m_pLZ_code_buf++; + } + d->m_huff_count[0][lit]++; +} + +static MZ_FORCEINLINE void tdefl_record_match(tdefl_compressor *d, mz_uint match_len, mz_uint match_dist) +{ + mz_uint32 s0, s1; + + MZ_ASSERT((match_len >= TDEFL_MIN_MATCH_LEN) && (match_dist >= 1) && (match_dist <= TDEFL_LZ_DICT_SIZE)); + + d->m_total_lz_bytes += match_len; + + d->m_pLZ_code_buf[0] = (mz_uint8)(match_len - TDEFL_MIN_MATCH_LEN); + + match_dist -= 1; + d->m_pLZ_code_buf[1] = (mz_uint8)(match_dist & 0xFF); + d->m_pLZ_code_buf[2] = (mz_uint8)(match_dist >> 8); + d->m_pLZ_code_buf += 3; + + *d->m_pLZ_flags = (mz_uint8)((*d->m_pLZ_flags >> 1) | 0x80); + if (--d->m_num_flags_left == 0) + { + d->m_num_flags_left = 8; + d->m_pLZ_flags = d->m_pLZ_code_buf++; + } + + s0 = s_tdefl_small_dist_sym[match_dist & 511]; + s1 = s_tdefl_large_dist_sym[(match_dist >> 8) & 127]; + d->m_huff_count[1][(match_dist < 512) ? s0 : s1]++; + d->m_huff_count[0][s_tdefl_len_sym[match_len - TDEFL_MIN_MATCH_LEN]]++; +} + +static mz_bool tdefl_compress_normal(tdefl_compressor *d) +{ + const mz_uint8 *pSrc = d->m_pSrc; + size_t src_buf_left = d->m_src_buf_left; + tdefl_flush flush = d->m_flush; + + while ((src_buf_left) || ((flush) && (d->m_lookahead_size))) + { + mz_uint len_to_move, cur_match_dist, cur_match_len, cur_pos; + /* Update dictionary and hash chains. Keeps the lookahead size equal to TDEFL_MAX_MATCH_LEN. */ + if ((d->m_lookahead_size + d->m_dict_size) >= (TDEFL_MIN_MATCH_LEN - 1)) + { + mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK, ins_pos = d->m_lookahead_pos + d->m_lookahead_size - 2; + mz_uint hash = (d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK]; + mz_uint num_bytes_to_process = (mz_uint)MZ_MIN(src_buf_left, TDEFL_MAX_MATCH_LEN - d->m_lookahead_size); + const mz_uint8 *pSrc_end = pSrc ? pSrc + num_bytes_to_process : NULL; + src_buf_left -= num_bytes_to_process; + d->m_lookahead_size += num_bytes_to_process; + while (pSrc != pSrc_end) + { + mz_uint8 c = *pSrc++; + d->m_dict[dst_pos] = c; + if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) + d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c; + hash = ((hash << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1); + d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; + d->m_hash[hash] = (mz_uint16)(ins_pos); + dst_pos = (dst_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK; + ins_pos++; + } + } + else + { + while ((src_buf_left) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN)) + { + mz_uint8 c = *pSrc++; + mz_uint dst_pos = (d->m_lookahead_pos + d->m_lookahead_size) & TDEFL_LZ_DICT_SIZE_MASK; + src_buf_left--; + d->m_dict[dst_pos] = c; + if (dst_pos < (TDEFL_MAX_MATCH_LEN - 1)) + d->m_dict[TDEFL_LZ_DICT_SIZE + dst_pos] = c; + if ((++d->m_lookahead_size + d->m_dict_size) >= TDEFL_MIN_MATCH_LEN) + { + mz_uint ins_pos = d->m_lookahead_pos + (d->m_lookahead_size - 1) - 2; + mz_uint hash = ((d->m_dict[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] << (TDEFL_LZ_HASH_SHIFT * 2)) ^ (d->m_dict[(ins_pos + 1) & TDEFL_LZ_DICT_SIZE_MASK] << TDEFL_LZ_HASH_SHIFT) ^ c) & (TDEFL_LZ_HASH_SIZE - 1); + d->m_next[ins_pos & TDEFL_LZ_DICT_SIZE_MASK] = d->m_hash[hash]; + d->m_hash[hash] = (mz_uint16)(ins_pos); + } + } + } + d->m_dict_size = MZ_MIN(TDEFL_LZ_DICT_SIZE - d->m_lookahead_size, d->m_dict_size); + if ((!flush) && (d->m_lookahead_size < TDEFL_MAX_MATCH_LEN)) + break; + + /* Simple lazy/greedy parsing state machine. */ + len_to_move = 1; + cur_match_dist = 0; + cur_match_len = d->m_saved_match_len ? d->m_saved_match_len : (TDEFL_MIN_MATCH_LEN - 1); + cur_pos = d->m_lookahead_pos & TDEFL_LZ_DICT_SIZE_MASK; + if (d->m_flags & (TDEFL_RLE_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS)) + { + if ((d->m_dict_size) && (!(d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS))) + { + mz_uint8 c = d->m_dict[(cur_pos - 1) & TDEFL_LZ_DICT_SIZE_MASK]; + cur_match_len = 0; + while (cur_match_len < d->m_lookahead_size) + { + if (d->m_dict[cur_pos + cur_match_len] != c) + break; + cur_match_len++; + } + if (cur_match_len < TDEFL_MIN_MATCH_LEN) + cur_match_len = 0; + else + cur_match_dist = 1; + } + } + else + { + tdefl_find_match(d, d->m_lookahead_pos, d->m_dict_size, d->m_lookahead_size, &cur_match_dist, &cur_match_len); + } + if (((cur_match_len == TDEFL_MIN_MATCH_LEN) && (cur_match_dist >= 8U * 1024U)) || (cur_pos == cur_match_dist) || ((d->m_flags & TDEFL_FILTER_MATCHES) && (cur_match_len <= 5))) + { + cur_match_dist = cur_match_len = 0; + } + if (d->m_saved_match_len) + { + if (cur_match_len > d->m_saved_match_len) + { + tdefl_record_literal(d, (mz_uint8)d->m_saved_lit); + if (cur_match_len >= 128) + { + tdefl_record_match(d, cur_match_len, cur_match_dist); + d->m_saved_match_len = 0; + len_to_move = cur_match_len; + } + else + { + d->m_saved_lit = d->m_dict[cur_pos]; + d->m_saved_match_dist = cur_match_dist; + d->m_saved_match_len = cur_match_len; + } + } + else + { + tdefl_record_match(d, d->m_saved_match_len, d->m_saved_match_dist); + len_to_move = d->m_saved_match_len - 1; + d->m_saved_match_len = 0; + } + } + else if (!cur_match_dist) + tdefl_record_literal(d, d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]); + else if ((d->m_greedy_parsing) || (d->m_flags & TDEFL_RLE_MATCHES) || (cur_match_len >= 128)) + { + tdefl_record_match(d, cur_match_len, cur_match_dist); + len_to_move = cur_match_len; + } + else + { + d->m_saved_lit = d->m_dict[MZ_MIN(cur_pos, sizeof(d->m_dict) - 1)]; + d->m_saved_match_dist = cur_match_dist; + d->m_saved_match_len = cur_match_len; + } + /* Move the lookahead forward by len_to_move bytes. */ + d->m_lookahead_pos += len_to_move; + MZ_ASSERT(d->m_lookahead_size >= len_to_move); + d->m_lookahead_size -= len_to_move; + d->m_dict_size = MZ_MIN(d->m_dict_size + len_to_move, (mz_uint)TDEFL_LZ_DICT_SIZE); + /* Check if it's time to flush the current LZ codes to the internal output buffer. */ + if ((d->m_pLZ_code_buf > &d->m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE - 8]) || + ((d->m_total_lz_bytes > 31 * 1024) && (((((mz_uint)(d->m_pLZ_code_buf - d->m_lz_code_buf) * 115) >> 7) >= d->m_total_lz_bytes) || (d->m_flags & TDEFL_FORCE_ALL_RAW_BLOCKS)))) + { + int n; + d->m_pSrc = pSrc; + d->m_src_buf_left = src_buf_left; + if ((n = tdefl_flush_block(d, 0)) != 0) + return (n < 0) ? MZ_FALSE : MZ_TRUE; + } + } + + d->m_pSrc = pSrc; + d->m_src_buf_left = src_buf_left; + return MZ_TRUE; +} + +static tdefl_status tdefl_flush_output_buffer(tdefl_compressor *d) +{ + if (d->m_pIn_buf_size) + { + *d->m_pIn_buf_size = d->m_pSrc - (const mz_uint8 *)d->m_pIn_buf; + } + + if (d->m_pOut_buf_size) + { + size_t n = MZ_MIN(*d->m_pOut_buf_size - d->m_out_buf_ofs, d->m_output_flush_remaining); + memcpy((mz_uint8 *)d->m_pOut_buf + d->m_out_buf_ofs, d->m_output_buf + d->m_output_flush_ofs, n); + d->m_output_flush_ofs += (mz_uint)n; + d->m_output_flush_remaining -= (mz_uint)n; + d->m_out_buf_ofs += n; + + *d->m_pOut_buf_size = d->m_out_buf_ofs; + } + + return (d->m_finished && !d->m_output_flush_remaining) ? TDEFL_STATUS_DONE : TDEFL_STATUS_OKAY; +} + +tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, tdefl_flush flush) +{ + if (!d) + { + if (pIn_buf_size) + *pIn_buf_size = 0; + if (pOut_buf_size) + *pOut_buf_size = 0; + return TDEFL_STATUS_BAD_PARAM; + } + + d->m_pIn_buf = pIn_buf; + d->m_pIn_buf_size = pIn_buf_size; + d->m_pOut_buf = pOut_buf; + d->m_pOut_buf_size = pOut_buf_size; + d->m_pSrc = (const mz_uint8 *)(pIn_buf); + d->m_src_buf_left = pIn_buf_size ? *pIn_buf_size : 0; + d->m_out_buf_ofs = 0; + d->m_flush = flush; + + if (((d->m_pPut_buf_func != NULL) == ((pOut_buf != NULL) || (pOut_buf_size != NULL))) || (d->m_prev_return_status != TDEFL_STATUS_OKAY) || + (d->m_wants_to_finish && (flush != TDEFL_FINISH)) || (pIn_buf_size && *pIn_buf_size && !pIn_buf) || (pOut_buf_size && *pOut_buf_size && !pOut_buf)) + { + if (pIn_buf_size) + *pIn_buf_size = 0; + if (pOut_buf_size) + *pOut_buf_size = 0; + return (d->m_prev_return_status = TDEFL_STATUS_BAD_PARAM); + } + d->m_wants_to_finish |= (flush == TDEFL_FINISH); + + if ((d->m_output_flush_remaining) || (d->m_finished)) + return (d->m_prev_return_status = tdefl_flush_output_buffer(d)); + +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN + if (((d->m_flags & TDEFL_MAX_PROBES_MASK) == 1) && + ((d->m_flags & TDEFL_GREEDY_PARSING_FLAG) != 0) && + ((d->m_flags & (TDEFL_FILTER_MATCHES | TDEFL_FORCE_ALL_RAW_BLOCKS | TDEFL_RLE_MATCHES)) == 0)) + { + if (!tdefl_compress_fast(d)) + return d->m_prev_return_status; + } + else +#endif /* #if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN */ + { + if (!tdefl_compress_normal(d)) + return d->m_prev_return_status; + } + + if ((d->m_flags & (TDEFL_WRITE_ZLIB_HEADER | TDEFL_COMPUTE_ADLER32)) && (pIn_buf)) + d->m_adler32 = (mz_uint32)mz_adler32(d->m_adler32, (const mz_uint8 *)pIn_buf, d->m_pSrc - (const mz_uint8 *)pIn_buf); + + if ((flush) && (!d->m_lookahead_size) && (!d->m_src_buf_left) && (!d->m_output_flush_remaining)) + { + if (tdefl_flush_block(d, flush) < 0) + return d->m_prev_return_status; + d->m_finished = (flush == TDEFL_FINISH); + if (flush == TDEFL_FULL_FLUSH) + { + MZ_CLEAR_ARR(d->m_hash); + MZ_CLEAR_ARR(d->m_next); + d->m_dict_size = 0; + } + } + + return (d->m_prev_return_status = tdefl_flush_output_buffer(d)); +} + +tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush) +{ + MZ_ASSERT(d->m_pPut_buf_func); + return tdefl_compress(d, pIn_buf, &in_buf_size, NULL, NULL, flush); +} + +tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags) +{ + d->m_pPut_buf_func = pPut_buf_func; + d->m_pPut_buf_user = pPut_buf_user; + d->m_flags = (mz_uint)(flags); + d->m_max_probes[0] = 1 + ((flags & 0xFFF) + 2) / 3; + d->m_greedy_parsing = (flags & TDEFL_GREEDY_PARSING_FLAG) != 0; + d->m_max_probes[1] = 1 + (((flags & 0xFFF) >> 2) + 2) / 3; + if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG)) + MZ_CLEAR_ARR(d->m_hash); + d->m_lookahead_pos = d->m_lookahead_size = d->m_dict_size = d->m_total_lz_bytes = d->m_lz_code_buf_dict_pos = d->m_bits_in = 0; + d->m_output_flush_ofs = d->m_output_flush_remaining = d->m_finished = d->m_block_index = d->m_bit_buffer = d->m_wants_to_finish = 0; + d->m_pLZ_code_buf = d->m_lz_code_buf + 1; + d->m_pLZ_flags = d->m_lz_code_buf; + *d->m_pLZ_flags = 0; + d->m_num_flags_left = 8; + d->m_pOutput_buf = d->m_output_buf; + d->m_pOutput_buf_end = d->m_output_buf; + d->m_prev_return_status = TDEFL_STATUS_OKAY; + d->m_saved_match_dist = d->m_saved_match_len = d->m_saved_lit = 0; + d->m_adler32 = 1; + d->m_pIn_buf = NULL; + d->m_pOut_buf = NULL; + d->m_pIn_buf_size = NULL; + d->m_pOut_buf_size = NULL; + d->m_flush = TDEFL_NO_FLUSH; + d->m_pSrc = NULL; + d->m_src_buf_left = 0; + d->m_out_buf_ofs = 0; + if (!(flags & TDEFL_NONDETERMINISTIC_PARSING_FLAG)) + MZ_CLEAR_ARR(d->m_dict); + memset(&d->m_huff_count[0][0], 0, sizeof(d->m_huff_count[0][0]) * TDEFL_MAX_HUFF_SYMBOLS_0); + memset(&d->m_huff_count[1][0], 0, sizeof(d->m_huff_count[1][0]) * TDEFL_MAX_HUFF_SYMBOLS_1); + return TDEFL_STATUS_OKAY; +} + +tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d) +{ + return d->m_prev_return_status; +} + +mz_uint32 tdefl_get_adler32(tdefl_compressor *d) +{ + return d->m_adler32; +} + +mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags) +{ + tdefl_compressor *pComp; + mz_bool succeeded; + if (((buf_len) && (!pBuf)) || (!pPut_buf_func)) + return MZ_FALSE; + pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); + if (!pComp) + return MZ_FALSE; + succeeded = (tdefl_init(pComp, pPut_buf_func, pPut_buf_user, flags) == TDEFL_STATUS_OKAY); + succeeded = succeeded && (tdefl_compress_buffer(pComp, pBuf, buf_len, TDEFL_FINISH) == TDEFL_STATUS_DONE); + MZ_FREE(pComp); + return succeeded; +} + +typedef struct +{ + size_t m_size, m_capacity; + mz_uint8 *m_pBuf; + mz_bool m_expandable; +} tdefl_output_buffer; + +static mz_bool tdefl_output_buffer_putter(const void *pBuf, int len, void *pUser) +{ + tdefl_output_buffer *p = (tdefl_output_buffer *)pUser; + size_t new_size = p->m_size + len; + if (new_size > p->m_capacity) + { + size_t new_capacity = p->m_capacity; + mz_uint8 *pNew_buf; + if (!p->m_expandable) + return MZ_FALSE; + do + { + new_capacity = MZ_MAX(128U, new_capacity << 1U); + } while (new_size > new_capacity); + pNew_buf = (mz_uint8 *)MZ_REALLOC(p->m_pBuf, new_capacity); + if (!pNew_buf) + return MZ_FALSE; + p->m_pBuf = pNew_buf; + p->m_capacity = new_capacity; + } + memcpy((mz_uint8 *)p->m_pBuf + p->m_size, pBuf, len); + p->m_size = new_size; + return MZ_TRUE; +} + +void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags) +{ + tdefl_output_buffer out_buf; + MZ_CLEAR_OBJ(out_buf); + if (!pOut_len) + return MZ_FALSE; + else + *pOut_len = 0; + out_buf.m_expandable = MZ_TRUE; + if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) + return NULL; + *pOut_len = out_buf.m_size; + return out_buf.m_pBuf; +} + +size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags) +{ + tdefl_output_buffer out_buf; + MZ_CLEAR_OBJ(out_buf); + if (!pOut_buf) + return 0; + out_buf.m_pBuf = (mz_uint8 *)pOut_buf; + out_buf.m_capacity = out_buf_len; + if (!tdefl_compress_mem_to_output(pSrc_buf, src_buf_len, tdefl_output_buffer_putter, &out_buf, flags)) + return 0; + return out_buf.m_size; +} + +static const mz_uint s_tdefl_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 }; + +/* level may actually range from [0,10] (10 is a "hidden" max level, where we want a bit more compression and it's fine if throughput to fall off a cliff on some files). */ +mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy) +{ + mz_uint comp_flags = s_tdefl_num_probes[(level >= 0) ? MZ_MIN(10, level) : MZ_DEFAULT_LEVEL] | ((level <= 3) ? TDEFL_GREEDY_PARSING_FLAG : 0); + if (window_bits > 0) + comp_flags |= TDEFL_WRITE_ZLIB_HEADER; + + if (!level) + comp_flags |= TDEFL_FORCE_ALL_RAW_BLOCKS; + else if (strategy == MZ_FILTERED) + comp_flags |= TDEFL_FILTER_MATCHES; + else if (strategy == MZ_HUFFMAN_ONLY) + comp_flags &= ~TDEFL_MAX_PROBES_MASK; + else if (strategy == MZ_FIXED) + comp_flags |= TDEFL_FORCE_ALL_STATIC_BLOCKS; + else if (strategy == MZ_RLE) + comp_flags |= TDEFL_RLE_MATCHES; + + return comp_flags; +} + +#ifdef _MSC_VER +#pragma warning(push) +#pragma warning(disable : 4204) /* nonstandard extension used : non-constant aggregate initializer (also supported by GNU C and C99, so no big deal) */ +#endif + +/* Simple PNG writer function by Alex Evans, 2011. Released into the public domain: https://gist.github.com/908299, more context at + http://altdevblogaday.org/2011/04/06/a-smaller-jpg-encoder/. + This is actually a modification of Alex's original code so PNG files generated by this function pass pngcheck. */ +void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, mz_uint level, mz_bool flip) +{ + /* Using a local copy of this array here in case MINIZ_NO_ZLIB_APIS was defined. */ + static const mz_uint s_tdefl_png_num_probes[11] = { 0, 1, 6, 32, 16, 32, 128, 256, 512, 768, 1500 }; + tdefl_compressor *pComp = (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); + tdefl_output_buffer out_buf; + int i, bpl = w * num_chans, y, z; + mz_uint32 c; + *pLen_out = 0; + if (!pComp) + return NULL; + MZ_CLEAR_OBJ(out_buf); + out_buf.m_expandable = MZ_TRUE; + out_buf.m_capacity = 57 + MZ_MAX(64, (1 + bpl) * h); + if (NULL == (out_buf.m_pBuf = (mz_uint8 *)MZ_MALLOC(out_buf.m_capacity))) + { + MZ_FREE(pComp); + return NULL; + } + /* write dummy header */ + for (z = 41; z; --z) + tdefl_output_buffer_putter(&z, 1, &out_buf); + /* compress image data */ + tdefl_init(pComp, tdefl_output_buffer_putter, &out_buf, s_tdefl_png_num_probes[MZ_MIN(10, level)] | TDEFL_WRITE_ZLIB_HEADER); + for (y = 0; y < h; ++y) + { + tdefl_compress_buffer(pComp, &z, 1, TDEFL_NO_FLUSH); + tdefl_compress_buffer(pComp, (mz_uint8 *)pImage + (flip ? (h - 1 - y) : y) * bpl, bpl, TDEFL_NO_FLUSH); + } + if (tdefl_compress_buffer(pComp, NULL, 0, TDEFL_FINISH) != TDEFL_STATUS_DONE) + { + MZ_FREE(pComp); + MZ_FREE(out_buf.m_pBuf); + return NULL; + } + /* write real header */ + *pLen_out = out_buf.m_size - 41; + { + static const mz_uint8 chans[] = { 0x00, 0x00, 0x04, 0x02, 0x06 }; + mz_uint8 pnghdr[41] = { 0x89, 0x50, 0x4e, 0x47, 0x0d, + 0x0a, 0x1a, 0x0a, 0x00, 0x00, + 0x00, 0x0d, 0x49, 0x48, 0x44, + 0x52, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x08, + 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x49, 0x44, 0x41, + 0x54 }; + pnghdr[18] = (mz_uint8)(w >> 8); + pnghdr[19] = (mz_uint8)w; + pnghdr[22] = (mz_uint8)(h >> 8); + pnghdr[23] = (mz_uint8)h; + pnghdr[25] = chans[num_chans]; + pnghdr[33] = (mz_uint8)(*pLen_out >> 24); + pnghdr[34] = (mz_uint8)(*pLen_out >> 16); + pnghdr[35] = (mz_uint8)(*pLen_out >> 8); + pnghdr[36] = (mz_uint8)*pLen_out; + c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, pnghdr + 12, 17); + for (i = 0; i < 4; ++i, c <<= 8) + ((mz_uint8 *)(pnghdr + 29))[i] = (mz_uint8)(c >> 24); + memcpy(out_buf.m_pBuf, pnghdr, 41); + } + /* write footer (IDAT CRC-32, followed by IEND chunk) */ + if (!tdefl_output_buffer_putter("\0\0\0\0\0\0\0\0\x49\x45\x4e\x44\xae\x42\x60\x82", 16, &out_buf)) + { + *pLen_out = 0; + MZ_FREE(pComp); + MZ_FREE(out_buf.m_pBuf); + return NULL; + } + c = (mz_uint32)mz_crc32(MZ_CRC32_INIT, out_buf.m_pBuf + 41 - 4, *pLen_out + 4); + for (i = 0; i < 4; ++i, c <<= 8) + (out_buf.m_pBuf + out_buf.m_size - 16)[i] = (mz_uint8)(c >> 24); + /* compute final size of file, grab compressed data buffer and return */ + *pLen_out += 57; + MZ_FREE(pComp); + return out_buf.m_pBuf; +} +void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out) +{ + /* Level 6 corresponds to TDEFL_DEFAULT_MAX_PROBES or MZ_DEFAULT_LEVEL (but we can't depend on MZ_DEFAULT_LEVEL being available in case the zlib API's where #defined out) */ + return tdefl_write_image_to_png_file_in_memory_ex(pImage, w, h, num_chans, pLen_out, 6, MZ_FALSE); +} + +#ifndef MINIZ_NO_MALLOC +/* Allocate the tdefl_compressor and tinfl_decompressor structures in C so that */ +/* non-C language bindings to tdefL_ and tinfl_ API don't need to worry about */ +/* structure size and allocation mechanism. */ +tdefl_compressor *tdefl_compressor_alloc(void) +{ + return (tdefl_compressor *)MZ_MALLOC(sizeof(tdefl_compressor)); +} + +void tdefl_compressor_free(tdefl_compressor *pComp) +{ + MZ_FREE(pComp); +} +#endif + +#ifdef _MSC_VER +#pragma warning(pop) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/ + /************************************************************************** + * + * Copyright 2013-2014 RAD Game Tools and Valve Software + * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + **************************************************************************/ + + + +#ifndef MINIZ_NO_INFLATE_APIS + +#ifdef __cplusplus +extern "C" { +#endif + +/* ------------------- Low-level Decompression (completely independent from all compression API's) */ + +#define TINFL_MEMCPY(d, s, l) memcpy(d, s, l) +#define TINFL_MEMSET(p, c, l) memset(p, c, l) + +#define TINFL_CR_BEGIN \ + switch (r->m_state) \ + { \ + case 0: +#define TINFL_CR_RETURN(state_index, result) \ + do \ + { \ + status = result; \ + r->m_state = state_index; \ + goto common_exit; \ + case state_index:; \ + } \ + MZ_MACRO_END +#define TINFL_CR_RETURN_FOREVER(state_index, result) \ + do \ + { \ + for (;;) \ + { \ + TINFL_CR_RETURN(state_index, result); \ + } \ + } \ + MZ_MACRO_END +#define TINFL_CR_FINISH } + +#define TINFL_GET_BYTE(state_index, c) \ + do \ + { \ + while (pIn_buf_cur >= pIn_buf_end) \ + { \ + TINFL_CR_RETURN(state_index, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS); \ + } \ + c = *pIn_buf_cur++; \ + } \ + MZ_MACRO_END + +#define TINFL_NEED_BITS(state_index, n) \ + do \ + { \ + mz_uint c; \ + TINFL_GET_BYTE(state_index, c); \ + bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \ + num_bits += 8; \ + } while (num_bits < (mz_uint)(n)) +#define TINFL_SKIP_BITS(state_index, n) \ + do \ + { \ + if (num_bits < (mz_uint)(n)) \ + { \ + TINFL_NEED_BITS(state_index, n); \ + } \ + bit_buf >>= (n); \ + num_bits -= (n); \ + } \ + MZ_MACRO_END +#define TINFL_GET_BITS(state_index, b, n) \ + do \ + { \ + if (num_bits < (mz_uint)(n)) \ + { \ + TINFL_NEED_BITS(state_index, n); \ + } \ + b = bit_buf & ((1 << (n)) - 1); \ + bit_buf >>= (n); \ + num_bits -= (n); \ + } \ + MZ_MACRO_END + +/* TINFL_HUFF_BITBUF_FILL() is only used rarely, when the number of bytes remaining in the input buffer falls below 2. */ +/* It reads just enough bytes from the input stream that are needed to decode the next Huffman code (and absolutely no more). It works by trying to fully decode a */ +/* Huffman code by using whatever bits are currently present in the bit buffer. If this fails, it reads another byte, and tries again until it succeeds or until the */ +/* bit buffer contains >=15 bits (deflate's max. Huffman code size). */ +#define TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree) \ + do \ + { \ + temp = pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]; \ + if (temp >= 0) \ + { \ + code_len = temp >> 9; \ + if ((code_len) && (num_bits >= code_len)) \ + break; \ + } \ + else if (num_bits > TINFL_FAST_LOOKUP_BITS) \ + { \ + code_len = TINFL_FAST_LOOKUP_BITS; \ + do \ + { \ + temp = pTree[~temp + ((bit_buf >> code_len++) & 1)]; \ + } while ((temp < 0) && (num_bits >= (code_len + 1))); \ + if (temp >= 0) \ + break; \ + } \ + TINFL_GET_BYTE(state_index, c); \ + bit_buf |= (((tinfl_bit_buf_t)c) << num_bits); \ + num_bits += 8; \ + } while (num_bits < 15); + +/* TINFL_HUFF_DECODE() decodes the next Huffman coded symbol. It's more complex than you would initially expect because the zlib API expects the decompressor to never read */ +/* beyond the final byte of the deflate stream. (In other words, when this macro wants to read another byte from the input, it REALLY needs another byte in order to fully */ +/* decode the next Huffman code.) Handling this properly is particularly important on raw deflate (non-zlib) streams, which aren't followed by a byte aligned adler-32. */ +/* The slow path is only executed at the very end of the input buffer. */ +/* v1.16: The original macro handled the case at the very end of the passed-in input buffer, but we also need to handle the case where the user passes in 1+zillion bytes */ +/* following the deflate data and our non-conservative read-ahead path won't kick in here on this code. This is much trickier. */ +#define TINFL_HUFF_DECODE(state_index, sym, pLookUp, pTree) \ + do \ + { \ + int temp; \ + mz_uint code_len, c; \ + if (num_bits < 15) \ + { \ + if ((pIn_buf_end - pIn_buf_cur) < 2) \ + { \ + TINFL_HUFF_BITBUF_FILL(state_index, pLookUp, pTree); \ + } \ + else \ + { \ + bit_buf |= (((tinfl_bit_buf_t)pIn_buf_cur[0]) << num_bits) | (((tinfl_bit_buf_t)pIn_buf_cur[1]) << (num_bits + 8)); \ + pIn_buf_cur += 2; \ + num_bits += 16; \ + } \ + } \ + if ((temp = pLookUp[bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0) \ + code_len = temp >> 9, temp &= 511; \ + else \ + { \ + code_len = TINFL_FAST_LOOKUP_BITS; \ + do \ + { \ + temp = pTree[~temp + ((bit_buf >> code_len++) & 1)]; \ + } while (temp < 0); \ + } \ + sym = temp; \ + bit_buf >>= code_len; \ + num_bits -= code_len; \ + } \ + MZ_MACRO_END + +static void tinfl_clear_tree(tinfl_decompressor *r) +{ + if (r->m_type == 0) + MZ_CLEAR_ARR(r->m_tree_0); + else if (r->m_type == 1) + MZ_CLEAR_ARR(r->m_tree_1); + else + MZ_CLEAR_ARR(r->m_tree_2); +} + +tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const mz_uint32 decomp_flags) +{ + static const mz_uint16 s_length_base[31] = { 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31, 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0 }; + static const mz_uint8 s_length_extra[31] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 0, 0 }; + static const mz_uint16 s_dist_base[32] = { 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193, 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145, 8193, 12289, 16385, 24577, 0, 0 }; + static const mz_uint8 s_dist_extra[32] = { 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13 }; + static const mz_uint8 s_length_dezigzag[19] = { 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15 }; + static const mz_uint16 s_min_table_sizes[3] = { 257, 1, 4 }; + + mz_int16 *pTrees[3]; + mz_uint8 *pCode_sizes[3]; + + tinfl_status status = TINFL_STATUS_FAILED; + mz_uint32 num_bits, dist, counter, num_extra; + tinfl_bit_buf_t bit_buf; + const mz_uint8 *pIn_buf_cur = pIn_buf_next, *const pIn_buf_end = pIn_buf_next + *pIn_buf_size; + mz_uint8 *pOut_buf_cur = pOut_buf_next, *const pOut_buf_end = pOut_buf_next ? pOut_buf_next + *pOut_buf_size : NULL; + size_t out_buf_size_mask = (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF) ? (size_t)-1 : ((pOut_buf_next - pOut_buf_start) + *pOut_buf_size) - 1, dist_from_out_buf_start; + + /* Ensure the output buffer's size is a power of 2, unless the output buffer is large enough to hold the entire output file (in which case it doesn't matter). */ + if (((out_buf_size_mask + 1) & out_buf_size_mask) || (pOut_buf_next < pOut_buf_start)) + { + *pIn_buf_size = *pOut_buf_size = 0; + return TINFL_STATUS_BAD_PARAM; + } + + pTrees[0] = r->m_tree_0; + pTrees[1] = r->m_tree_1; + pTrees[2] = r->m_tree_2; + pCode_sizes[0] = r->m_code_size_0; + pCode_sizes[1] = r->m_code_size_1; + pCode_sizes[2] = r->m_code_size_2; + + num_bits = r->m_num_bits; + bit_buf = r->m_bit_buf; + dist = r->m_dist; + counter = r->m_counter; + num_extra = r->m_num_extra; + dist_from_out_buf_start = r->m_dist_from_out_buf_start; + TINFL_CR_BEGIN + + bit_buf = num_bits = dist = counter = num_extra = r->m_zhdr0 = r->m_zhdr1 = 0; + r->m_z_adler32 = r->m_check_adler32 = 1; + if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) + { + TINFL_GET_BYTE(1, r->m_zhdr0); + TINFL_GET_BYTE(2, r->m_zhdr1); + counter = (((r->m_zhdr0 * 256 + r->m_zhdr1) % 31 != 0) || (r->m_zhdr1 & 32) || ((r->m_zhdr0 & 15) != 8)); + if (!(decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) + counter |= (((1U << (8U + (r->m_zhdr0 >> 4))) > 32768U) || ((out_buf_size_mask + 1) < (size_t)((size_t)1 << (8U + (r->m_zhdr0 >> 4))))); + if (counter) + { + TINFL_CR_RETURN_FOREVER(36, TINFL_STATUS_FAILED); + } + } + + do + { + TINFL_GET_BITS(3, r->m_final, 3); + r->m_type = r->m_final >> 1; + if (r->m_type == 0) + { + TINFL_SKIP_BITS(5, num_bits & 7); + for (counter = 0; counter < 4; ++counter) + { + if (num_bits) + TINFL_GET_BITS(6, r->m_raw_header[counter], 8); + else + TINFL_GET_BYTE(7, r->m_raw_header[counter]); + } + if ((counter = (r->m_raw_header[0] | (r->m_raw_header[1] << 8))) != (mz_uint)(0xFFFF ^ (r->m_raw_header[2] | (r->m_raw_header[3] << 8)))) + { + TINFL_CR_RETURN_FOREVER(39, TINFL_STATUS_FAILED); + } + while ((counter) && (num_bits)) + { + TINFL_GET_BITS(51, dist, 8); + while (pOut_buf_cur >= pOut_buf_end) + { + TINFL_CR_RETURN(52, TINFL_STATUS_HAS_MORE_OUTPUT); + } + *pOut_buf_cur++ = (mz_uint8)dist; + counter--; + } + while (counter) + { + size_t n; + while (pOut_buf_cur >= pOut_buf_end) + { + TINFL_CR_RETURN(9, TINFL_STATUS_HAS_MORE_OUTPUT); + } + while (pIn_buf_cur >= pIn_buf_end) + { + TINFL_CR_RETURN(38, (decomp_flags & TINFL_FLAG_HAS_MORE_INPUT) ? TINFL_STATUS_NEEDS_MORE_INPUT : TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS); + } + n = MZ_MIN(MZ_MIN((size_t)(pOut_buf_end - pOut_buf_cur), (size_t)(pIn_buf_end - pIn_buf_cur)), counter); + TINFL_MEMCPY(pOut_buf_cur, pIn_buf_cur, n); + pIn_buf_cur += n; + pOut_buf_cur += n; + counter -= (mz_uint)n; + } + } + else if (r->m_type == 3) + { + TINFL_CR_RETURN_FOREVER(10, TINFL_STATUS_FAILED); + } + else + { + if (r->m_type == 1) + { + mz_uint8 *p = r->m_code_size_0; + mz_uint i; + r->m_table_sizes[0] = 288; + r->m_table_sizes[1] = 32; + TINFL_MEMSET(r->m_code_size_1, 5, 32); + for (i = 0; i <= 143; ++i) + *p++ = 8; + for (; i <= 255; ++i) + *p++ = 9; + for (; i <= 279; ++i) + *p++ = 7; + for (; i <= 287; ++i) + *p++ = 8; + } + else + { + for (counter = 0; counter < 3; counter++) + { + TINFL_GET_BITS(11, r->m_table_sizes[counter], "\05\05\04"[counter]); + r->m_table_sizes[counter] += s_min_table_sizes[counter]; + } + MZ_CLEAR_ARR(r->m_code_size_2); + for (counter = 0; counter < r->m_table_sizes[2]; counter++) + { + mz_uint s; + TINFL_GET_BITS(14, s, 3); + r->m_code_size_2[s_length_dezigzag[counter]] = (mz_uint8)s; + } + r->m_table_sizes[2] = 19; + } + for (; (int)r->m_type >= 0; r->m_type--) + { + int tree_next, tree_cur; + mz_int16 *pLookUp; + mz_int16 *pTree; + mz_uint8 *pCode_size; + mz_uint i, j, used_syms, total, sym_index, next_code[17], total_syms[16]; + pLookUp = r->m_look_up[r->m_type]; + pTree = pTrees[r->m_type]; + pCode_size = pCode_sizes[r->m_type]; + MZ_CLEAR_ARR(total_syms); + TINFL_MEMSET(pLookUp, 0, sizeof(r->m_look_up[0])); + tinfl_clear_tree(r); + for (i = 0; i < r->m_table_sizes[r->m_type]; ++i) + total_syms[pCode_size[i]]++; + used_syms = 0, total = 0; + next_code[0] = next_code[1] = 0; + for (i = 1; i <= 15; ++i) + { + used_syms += total_syms[i]; + next_code[i + 1] = (total = ((total + total_syms[i]) << 1)); + } + if ((65536 != total) && (used_syms > 1)) + { + TINFL_CR_RETURN_FOREVER(35, TINFL_STATUS_FAILED); + } + for (tree_next = -1, sym_index = 0; sym_index < r->m_table_sizes[r->m_type]; ++sym_index) + { + mz_uint rev_code = 0, l, cur_code, code_size = pCode_size[sym_index]; + if (!code_size) + continue; + cur_code = next_code[code_size]++; + for (l = code_size; l > 0; l--, cur_code >>= 1) + rev_code = (rev_code << 1) | (cur_code & 1); + if (code_size <= TINFL_FAST_LOOKUP_BITS) + { + mz_int16 k = (mz_int16)((code_size << 9) | sym_index); + while (rev_code < TINFL_FAST_LOOKUP_SIZE) + { + pLookUp[rev_code] = k; + rev_code += (1 << code_size); + } + continue; + } + if (0 == (tree_cur = pLookUp[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)])) + { + pLookUp[rev_code & (TINFL_FAST_LOOKUP_SIZE - 1)] = (mz_int16)tree_next; + tree_cur = tree_next; + tree_next -= 2; + } + rev_code >>= (TINFL_FAST_LOOKUP_BITS - 1); + for (j = code_size; j > (TINFL_FAST_LOOKUP_BITS + 1); j--) + { + tree_cur -= ((rev_code >>= 1) & 1); + if (!pTree[-tree_cur - 1]) + { + pTree[-tree_cur - 1] = (mz_int16)tree_next; + tree_cur = tree_next; + tree_next -= 2; + } + else + tree_cur = pTree[-tree_cur - 1]; + } + tree_cur -= ((rev_code >>= 1) & 1); + pTree[-tree_cur - 1] = (mz_int16)sym_index; + } + if (r->m_type == 2) + { + for (counter = 0; counter < (r->m_table_sizes[0] + r->m_table_sizes[1]);) + { + mz_uint s; + TINFL_HUFF_DECODE(16, dist, r->m_look_up[2], r->m_tree_2); + if (dist < 16) + { + r->m_len_codes[counter++] = (mz_uint8)dist; + continue; + } + if ((dist == 16) && (!counter)) + { + TINFL_CR_RETURN_FOREVER(17, TINFL_STATUS_FAILED); + } + num_extra = "\02\03\07"[dist - 16]; + TINFL_GET_BITS(18, s, num_extra); + s += "\03\03\013"[dist - 16]; + TINFL_MEMSET(r->m_len_codes + counter, (dist == 16) ? r->m_len_codes[counter - 1] : 0, s); + counter += s; + } + if ((r->m_table_sizes[0] + r->m_table_sizes[1]) != counter) + { + TINFL_CR_RETURN_FOREVER(21, TINFL_STATUS_FAILED); + } + TINFL_MEMCPY(r->m_code_size_0, r->m_len_codes, r->m_table_sizes[0]); + TINFL_MEMCPY(r->m_code_size_1, r->m_len_codes + r->m_table_sizes[0], r->m_table_sizes[1]); + } + } + for (;;) + { + mz_uint8 *pSrc; + for (;;) + { + if (((pIn_buf_end - pIn_buf_cur) < 4) || ((pOut_buf_end - pOut_buf_cur) < 2)) + { + TINFL_HUFF_DECODE(23, counter, r->m_look_up[0], r->m_tree_0); + if (counter >= 256) + break; + while (pOut_buf_cur >= pOut_buf_end) + { + TINFL_CR_RETURN(24, TINFL_STATUS_HAS_MORE_OUTPUT); + } + *pOut_buf_cur++ = (mz_uint8)counter; + } + else + { + int sym2; + mz_uint code_len; +#if TINFL_USE_64BIT_BITBUF + if (num_bits < 30) + { + bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE32(pIn_buf_cur)) << num_bits); + pIn_buf_cur += 4; + num_bits += 32; + } +#else + if (num_bits < 15) + { + bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); + pIn_buf_cur += 2; + num_bits += 16; + } +#endif + if ((sym2 = r->m_look_up[0][bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0) + code_len = sym2 >> 9; + else + { + code_len = TINFL_FAST_LOOKUP_BITS; + do + { + sym2 = r->m_tree_0[~sym2 + ((bit_buf >> code_len++) & 1)]; + } while (sym2 < 0); + } + counter = sym2; + bit_buf >>= code_len; + num_bits -= code_len; + if (counter & 256) + break; + +#if !TINFL_USE_64BIT_BITBUF + if (num_bits < 15) + { + bit_buf |= (((tinfl_bit_buf_t)MZ_READ_LE16(pIn_buf_cur)) << num_bits); + pIn_buf_cur += 2; + num_bits += 16; + } +#endif + if ((sym2 = r->m_look_up[0][bit_buf & (TINFL_FAST_LOOKUP_SIZE - 1)]) >= 0) + code_len = sym2 >> 9; + else + { + code_len = TINFL_FAST_LOOKUP_BITS; + do + { + sym2 = r->m_tree_0[~sym2 + ((bit_buf >> code_len++) & 1)]; + } while (sym2 < 0); + } + bit_buf >>= code_len; + num_bits -= code_len; + + pOut_buf_cur[0] = (mz_uint8)counter; + if (sym2 & 256) + { + pOut_buf_cur++; + counter = sym2; + break; + } + pOut_buf_cur[1] = (mz_uint8)sym2; + pOut_buf_cur += 2; + } + } + if ((counter &= 511) == 256) + break; + + num_extra = s_length_extra[counter - 257]; + counter = s_length_base[counter - 257]; + if (num_extra) + { + mz_uint extra_bits; + TINFL_GET_BITS(25, extra_bits, num_extra); + counter += extra_bits; + } + + TINFL_HUFF_DECODE(26, dist, r->m_look_up[1], r->m_tree_1); + num_extra = s_dist_extra[dist]; + dist = s_dist_base[dist]; + if (num_extra) + { + mz_uint extra_bits; + TINFL_GET_BITS(27, extra_bits, num_extra); + dist += extra_bits; + } + + dist_from_out_buf_start = pOut_buf_cur - pOut_buf_start; + if ((dist == 0 || dist > dist_from_out_buf_start || dist_from_out_buf_start == 0) && (decomp_flags & TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF)) + { + TINFL_CR_RETURN_FOREVER(37, TINFL_STATUS_FAILED); + } + + pSrc = pOut_buf_start + ((dist_from_out_buf_start - dist) & out_buf_size_mask); + + if ((MZ_MAX(pOut_buf_cur, pSrc) + counter) > pOut_buf_end) + { + while (counter--) + { + while (pOut_buf_cur >= pOut_buf_end) + { + TINFL_CR_RETURN(53, TINFL_STATUS_HAS_MORE_OUTPUT); + } + *pOut_buf_cur++ = pOut_buf_start[(dist_from_out_buf_start++ - dist) & out_buf_size_mask]; + } + continue; + } +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES + else if ((counter >= 9) && (counter <= dist)) + { + const mz_uint8 *pSrc_end = pSrc + (counter & ~7); + do + { +#ifdef MINIZ_UNALIGNED_USE_MEMCPY + memcpy(pOut_buf_cur, pSrc, sizeof(mz_uint32)*2); +#else + ((mz_uint32 *)pOut_buf_cur)[0] = ((const mz_uint32 *)pSrc)[0]; + ((mz_uint32 *)pOut_buf_cur)[1] = ((const mz_uint32 *)pSrc)[1]; +#endif + pOut_buf_cur += 8; + } while ((pSrc += 8) < pSrc_end); + if ((counter &= 7) < 3) + { + if (counter) + { + pOut_buf_cur[0] = pSrc[0]; + if (counter > 1) + pOut_buf_cur[1] = pSrc[1]; + pOut_buf_cur += counter; + } + continue; + } + } +#endif + while(counter>2) + { + pOut_buf_cur[0] = pSrc[0]; + pOut_buf_cur[1] = pSrc[1]; + pOut_buf_cur[2] = pSrc[2]; + pOut_buf_cur += 3; + pSrc += 3; + counter -= 3; + } + if (counter > 0) + { + pOut_buf_cur[0] = pSrc[0]; + if (counter > 1) + pOut_buf_cur[1] = pSrc[1]; + pOut_buf_cur += counter; + } + } + } + } while (!(r->m_final & 1)); + + /* Ensure byte alignment and put back any bytes from the bitbuf if we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */ + /* I'm being super conservative here. A number of simplifications can be made to the byte alignment part, and the Adler32 check shouldn't ever need to worry about reading from the bitbuf now. */ + TINFL_SKIP_BITS(32, num_bits & 7); + while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8)) + { + --pIn_buf_cur; + num_bits -= 8; + } + bit_buf &= ~(~(tinfl_bit_buf_t)0 << num_bits); + MZ_ASSERT(!num_bits); /* if this assert fires then we've read beyond the end of non-deflate/zlib streams with following data (such as gzip streams). */ + + if (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) + { + for (counter = 0; counter < 4; ++counter) + { + mz_uint s; + if (num_bits) + TINFL_GET_BITS(41, s, 8); + else + TINFL_GET_BYTE(42, s); + r->m_z_adler32 = (r->m_z_adler32 << 8) | s; + } + } + TINFL_CR_RETURN_FOREVER(34, TINFL_STATUS_DONE); + + TINFL_CR_FINISH + +common_exit: + /* As long as we aren't telling the caller that we NEED more input to make forward progress: */ + /* Put back any bytes from the bitbuf in case we've looked ahead too far on gzip, or other Deflate streams followed by arbitrary data. */ + /* We need to be very careful here to NOT push back any bytes we definitely know we need to make forward progress, though, or we'll lock the caller up into an inf loop. */ + if ((status != TINFL_STATUS_NEEDS_MORE_INPUT) && (status != TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS)) + { + while ((pIn_buf_cur > pIn_buf_next) && (num_bits >= 8)) + { + --pIn_buf_cur; + num_bits -= 8; + } + } + r->m_num_bits = num_bits; + r->m_bit_buf = bit_buf & ~(~(tinfl_bit_buf_t)0 << num_bits); + r->m_dist = dist; + r->m_counter = counter; + r->m_num_extra = num_extra; + r->m_dist_from_out_buf_start = dist_from_out_buf_start; + *pIn_buf_size = pIn_buf_cur - pIn_buf_next; + *pOut_buf_size = pOut_buf_cur - pOut_buf_next; + if ((decomp_flags & (TINFL_FLAG_PARSE_ZLIB_HEADER | TINFL_FLAG_COMPUTE_ADLER32)) && (status >= 0)) + { + const mz_uint8 *ptr = pOut_buf_next; + size_t buf_len = *pOut_buf_size; + mz_uint32 i, s1 = r->m_check_adler32 & 0xffff, s2 = r->m_check_adler32 >> 16; + size_t block_len = buf_len % 5552; + while (buf_len) + { + for (i = 0; i + 7 < block_len; i += 8, ptr += 8) + { + s1 += ptr[0], s2 += s1; + s1 += ptr[1], s2 += s1; + s1 += ptr[2], s2 += s1; + s1 += ptr[3], s2 += s1; + s1 += ptr[4], s2 += s1; + s1 += ptr[5], s2 += s1; + s1 += ptr[6], s2 += s1; + s1 += ptr[7], s2 += s1; + } + for (; i < block_len; ++i) + s1 += *ptr++, s2 += s1; + s1 %= 65521U, s2 %= 65521U; + buf_len -= block_len; + block_len = 5552; + } + r->m_check_adler32 = (s2 << 16) + s1; + if ((status == TINFL_STATUS_DONE) && (decomp_flags & TINFL_FLAG_PARSE_ZLIB_HEADER) && (r->m_check_adler32 != r->m_z_adler32)) + status = TINFL_STATUS_ADLER32_MISMATCH; + } + return status; +} + +/* Higher level helper functions. */ +void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags) +{ + tinfl_decompressor decomp; + void *pBuf = NULL, *pNew_buf; + size_t src_buf_ofs = 0, out_buf_capacity = 0; + *pOut_len = 0; + tinfl_init(&decomp); + for (;;) + { + size_t src_buf_size = src_buf_len - src_buf_ofs, dst_buf_size = out_buf_capacity - *pOut_len, new_out_buf_capacity; + tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf + src_buf_ofs, &src_buf_size, (mz_uint8 *)pBuf, pBuf ? (mz_uint8 *)pBuf + *pOut_len : NULL, &dst_buf_size, + (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF); + if ((status < 0) || (status == TINFL_STATUS_NEEDS_MORE_INPUT)) + { + MZ_FREE(pBuf); + *pOut_len = 0; + return NULL; + } + src_buf_ofs += src_buf_size; + *pOut_len += dst_buf_size; + if (status == TINFL_STATUS_DONE) + break; + new_out_buf_capacity = out_buf_capacity * 2; + if (new_out_buf_capacity < 128) + new_out_buf_capacity = 128; + pNew_buf = MZ_REALLOC(pBuf, new_out_buf_capacity); + if (!pNew_buf) + { + MZ_FREE(pBuf); + *pOut_len = 0; + return NULL; + } + pBuf = pNew_buf; + out_buf_capacity = new_out_buf_capacity; + } + return pBuf; +} + +size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags) +{ + tinfl_decompressor decomp; + tinfl_status status; + tinfl_init(&decomp); + status = tinfl_decompress(&decomp, (const mz_uint8 *)pSrc_buf, &src_buf_len, (mz_uint8 *)pOut_buf, (mz_uint8 *)pOut_buf, &out_buf_len, (flags & ~TINFL_FLAG_HAS_MORE_INPUT) | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF); + return (status != TINFL_STATUS_DONE) ? TINFL_DECOMPRESS_MEM_TO_MEM_FAILED : out_buf_len; +} + +int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags) +{ + int result = 0; + tinfl_decompressor decomp; + mz_uint8 *pDict = (mz_uint8 *)MZ_MALLOC(TINFL_LZ_DICT_SIZE); + size_t in_buf_ofs = 0, dict_ofs = 0; + if (!pDict) + return TINFL_STATUS_FAILED; + memset(pDict,0,TINFL_LZ_DICT_SIZE); + tinfl_init(&decomp); + for (;;) + { + size_t in_buf_size = *pIn_buf_size - in_buf_ofs, dst_buf_size = TINFL_LZ_DICT_SIZE - dict_ofs; + tinfl_status status = tinfl_decompress(&decomp, (const mz_uint8 *)pIn_buf + in_buf_ofs, &in_buf_size, pDict, pDict + dict_ofs, &dst_buf_size, + (flags & ~(TINFL_FLAG_HAS_MORE_INPUT | TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF))); + in_buf_ofs += in_buf_size; + if ((dst_buf_size) && (!(*pPut_buf_func)(pDict + dict_ofs, (int)dst_buf_size, pPut_buf_user))) + break; + if (status != TINFL_STATUS_HAS_MORE_OUTPUT) + { + result = (status == TINFL_STATUS_DONE); + break; + } + dict_ofs = (dict_ofs + dst_buf_size) & (TINFL_LZ_DICT_SIZE - 1); + } + MZ_FREE(pDict); + *pIn_buf_size = in_buf_ofs; + return result; +} + +#ifndef MINIZ_NO_MALLOC +tinfl_decompressor *tinfl_decompressor_alloc(void) +{ + tinfl_decompressor *pDecomp = (tinfl_decompressor *)MZ_MALLOC(sizeof(tinfl_decompressor)); + if (pDecomp) + tinfl_init(pDecomp); + return pDecomp; +} + +void tinfl_decompressor_free(tinfl_decompressor *pDecomp) +{ + MZ_FREE(pDecomp); +} +#endif + +#ifdef __cplusplus +} +#endif + +#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/ + /************************************************************************** + * + * Copyright 2013-2014 RAD Game Tools and Valve Software + * Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC + * Copyright 2016 Martin Raiber + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef MINIZ_NO_ARCHIVE_APIS + +#ifdef __cplusplus +extern "C" { +#endif + +/* ------------------- .ZIP archive reading */ + +#ifdef MINIZ_NO_STDIO +#define MZ_FILE void * +#else +#include + +#if defined(_MSC_VER) || defined(__MINGW64__) + +#define WIN32_LEAN_AND_MEAN +#include + +static WCHAR* mz_utf8z_to_widechar(const char* str) +{ + int reqChars = MultiByteToWideChar(CP_UTF8, 0, str, -1, NULL, 0); + WCHAR* wStr = (WCHAR*)malloc(reqChars * sizeof(WCHAR)); + MultiByteToWideChar(CP_UTF8, 0, str, -1, wStr, reqChars); + return wStr; +} + +static FILE *mz_fopen(const char *pFilename, const char *pMode) +{ + WCHAR* wFilename = mz_utf8z_to_widechar(pFilename); + WCHAR* wMode = mz_utf8z_to_widechar(pMode); + FILE* pFile = NULL; + errno_t err = _wfopen_s(&pFile, wFilename, wMode); + free(wFilename); + free(wMode); + return err ? NULL : pFile; +} + +static FILE *mz_freopen(const char *pPath, const char *pMode, FILE *pStream) +{ + WCHAR* wPath = mz_utf8z_to_widechar(pPath); + WCHAR* wMode = mz_utf8z_to_widechar(pMode); + FILE* pFile = NULL; + errno_t err = _wfreopen_s(&pFile, wPath, wMode, pStream); + free(wPath); + free(wMode); + return err ? NULL : pFile; +} + +static int mz_stat64(const char *path, struct __stat64 *buffer) +{ + WCHAR* wPath = mz_utf8z_to_widechar(path); + int res = _wstat64(wPath, buffer); + free(wPath); + return res; +} + +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN mz_fopen +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#define MZ_FTELL64 _ftelli64 +#define MZ_FSEEK64 _fseeki64 +#define MZ_FILE_STAT_STRUCT _stat64 +#define MZ_FILE_STAT mz_stat64 +#define MZ_FFLUSH fflush +#define MZ_FREOPEN mz_freopen +#define MZ_DELETE_FILE remove + +#elif defined(__MINGW32__) || defined(__WATCOMC__) +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN(f, m) fopen(f, m) +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#define MZ_FTELL64 _ftelli64 +#define MZ_FSEEK64 _fseeki64 +#define MZ_FILE_STAT_STRUCT stat +#define MZ_FILE_STAT stat +#define MZ_FFLUSH fflush +#define MZ_FREOPEN(f, m, s) freopen(f, m, s) +#define MZ_DELETE_FILE remove + +#elif defined(__TINYC__) +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN(f, m) fopen(f, m) +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#define MZ_FTELL64 ftell +#define MZ_FSEEK64 fseek +#define MZ_FILE_STAT_STRUCT stat +#define MZ_FILE_STAT stat +#define MZ_FFLUSH fflush +#define MZ_FREOPEN(f, m, s) freopen(f, m, s) +#define MZ_DELETE_FILE remove + +#elif defined(__USE_LARGEFILE64) /* gcc, clang */ +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN(f, m) fopen64(f, m) +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#define MZ_FTELL64 ftello64 +#define MZ_FSEEK64 fseeko64 +#define MZ_FILE_STAT_STRUCT stat64 +#define MZ_FILE_STAT stat64 +#define MZ_FFLUSH fflush +#define MZ_FREOPEN(p, m, s) freopen64(p, m, s) +#define MZ_DELETE_FILE remove + +#elif defined(__APPLE__) || defined(__FreeBSD__) +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN(f, m) fopen(f, m) +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#define MZ_FTELL64 ftello +#define MZ_FSEEK64 fseeko +#define MZ_FILE_STAT_STRUCT stat +#define MZ_FILE_STAT stat +#define MZ_FFLUSH fflush +#define MZ_FREOPEN(p, m, s) freopen(p, m, s) +#define MZ_DELETE_FILE remove + +#else +#pragma message("Using fopen, ftello, fseeko, stat() etc. path for file I/O - this path may not support large files.") +#ifndef MINIZ_NO_TIME +#include +#endif +#define MZ_FOPEN(f, m) fopen(f, m) +#define MZ_FCLOSE fclose +#define MZ_FREAD fread +#define MZ_FWRITE fwrite +#ifdef __STRICT_ANSI__ +#define MZ_FTELL64 ftell +#define MZ_FSEEK64 fseek +#else +#define MZ_FTELL64 ftello +#define MZ_FSEEK64 fseeko +#endif +#define MZ_FILE_STAT_STRUCT stat +#define MZ_FILE_STAT stat +#define MZ_FFLUSH fflush +#define MZ_FREOPEN(f, m, s) freopen(f, m, s) +#define MZ_DELETE_FILE remove +#endif /* #ifdef _MSC_VER */ +#endif /* #ifdef MINIZ_NO_STDIO */ + +#define MZ_TOLOWER(c) ((((c) >= 'A') && ((c) <= 'Z')) ? ((c) - 'A' + 'a') : (c)) + +/* Various ZIP archive enums. To completely avoid cross platform compiler alignment and platform endian issues, miniz.c doesn't use structs for any of this stuff. */ +enum +{ + /* ZIP archive identifiers and record sizes */ + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06054b50, + MZ_ZIP_CENTRAL_DIR_HEADER_SIG = 0x02014b50, + MZ_ZIP_LOCAL_DIR_HEADER_SIG = 0x04034b50, + MZ_ZIP_LOCAL_DIR_HEADER_SIZE = 30, + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE = 46, + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE = 22, + + /* ZIP64 archive identifier and record sizes */ + MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG = 0x06064b50, + MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG = 0x07064b50, + MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE = 56, + MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE = 20, + MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID = 0x0001, + MZ_ZIP_DATA_DESCRIPTOR_ID = 0x08074b50, + MZ_ZIP_DATA_DESCRIPTER_SIZE64 = 24, + MZ_ZIP_DATA_DESCRIPTER_SIZE32 = 16, + + /* Central directory header record offsets */ + MZ_ZIP_CDH_SIG_OFS = 0, + MZ_ZIP_CDH_VERSION_MADE_BY_OFS = 4, + MZ_ZIP_CDH_VERSION_NEEDED_OFS = 6, + MZ_ZIP_CDH_BIT_FLAG_OFS = 8, + MZ_ZIP_CDH_METHOD_OFS = 10, + MZ_ZIP_CDH_FILE_TIME_OFS = 12, + MZ_ZIP_CDH_FILE_DATE_OFS = 14, + MZ_ZIP_CDH_CRC32_OFS = 16, + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS = 20, + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS = 24, + MZ_ZIP_CDH_FILENAME_LEN_OFS = 28, + MZ_ZIP_CDH_EXTRA_LEN_OFS = 30, + MZ_ZIP_CDH_COMMENT_LEN_OFS = 32, + MZ_ZIP_CDH_DISK_START_OFS = 34, + MZ_ZIP_CDH_INTERNAL_ATTR_OFS = 36, + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS = 38, + MZ_ZIP_CDH_LOCAL_HEADER_OFS = 42, + + /* Local directory header offsets */ + MZ_ZIP_LDH_SIG_OFS = 0, + MZ_ZIP_LDH_VERSION_NEEDED_OFS = 4, + MZ_ZIP_LDH_BIT_FLAG_OFS = 6, + MZ_ZIP_LDH_METHOD_OFS = 8, + MZ_ZIP_LDH_FILE_TIME_OFS = 10, + MZ_ZIP_LDH_FILE_DATE_OFS = 12, + MZ_ZIP_LDH_CRC32_OFS = 14, + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS = 18, + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS = 22, + MZ_ZIP_LDH_FILENAME_LEN_OFS = 26, + MZ_ZIP_LDH_EXTRA_LEN_OFS = 28, + MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR = 1 << 3, + + /* End of central directory offsets */ + MZ_ZIP_ECDH_SIG_OFS = 0, + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS = 4, + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS = 6, + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 8, + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS = 10, + MZ_ZIP_ECDH_CDIR_SIZE_OFS = 12, + MZ_ZIP_ECDH_CDIR_OFS_OFS = 16, + MZ_ZIP_ECDH_COMMENT_SIZE_OFS = 20, + + /* ZIP64 End of central directory locator offsets */ + MZ_ZIP64_ECDL_SIG_OFS = 0, /* 4 bytes */ + MZ_ZIP64_ECDL_NUM_DISK_CDIR_OFS = 4, /* 4 bytes */ + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS = 8, /* 8 bytes */ + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS = 16, /* 4 bytes */ + + /* ZIP64 End of central directory header offsets */ + MZ_ZIP64_ECDH_SIG_OFS = 0, /* 4 bytes */ + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS = 4, /* 8 bytes */ + MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS = 12, /* 2 bytes */ + MZ_ZIP64_ECDH_VERSION_NEEDED_OFS = 14, /* 2 bytes */ + MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS = 16, /* 4 bytes */ + MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS = 20, /* 4 bytes */ + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS = 24, /* 8 bytes */ + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS = 32, /* 8 bytes */ + MZ_ZIP64_ECDH_CDIR_SIZE_OFS = 40, /* 8 bytes */ + MZ_ZIP64_ECDH_CDIR_OFS_OFS = 48, /* 8 bytes */ + MZ_ZIP_VERSION_MADE_BY_DOS_FILESYSTEM_ID = 0, + MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG = 0x10, + MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED = 1, + MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG = 32, + MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION = 64, + MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED = 8192, + MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8 = 1 << 11 +}; + +typedef struct +{ + void *m_p; + size_t m_size, m_capacity; + mz_uint m_element_size; +} mz_zip_array; + +struct mz_zip_internal_state_tag +{ + mz_zip_array m_central_dir; + mz_zip_array m_central_dir_offsets; + mz_zip_array m_sorted_central_dir_offsets; + + /* The flags passed in when the archive is initially opened. */ + mz_uint32 m_init_flags; + + /* MZ_TRUE if the archive has a zip64 end of central directory headers, etc. */ + mz_bool m_zip64; + + /* MZ_TRUE if we found zip64 extended info in the central directory (m_zip64 will also be slammed to true too, even if we didn't find a zip64 end of central dir header, etc.) */ + mz_bool m_zip64_has_extended_info_fields; + + /* These fields are used by the file, FILE, memory, and memory/heap read/write helpers. */ + MZ_FILE *m_pFile; + mz_uint64 m_file_archive_start_ofs; + + void *m_pMem; + size_t m_mem_size; + size_t m_mem_capacity; +}; + +#define MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(array_ptr, element_size) (array_ptr)->m_element_size = element_size + +#if defined(DEBUG) || defined(_DEBUG) +static MZ_FORCEINLINE mz_uint mz_zip_array_range_check(const mz_zip_array *pArray, mz_uint index) +{ + MZ_ASSERT(index < pArray->m_size); + return index; +} +#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[mz_zip_array_range_check(array_ptr, index)] +#else +#define MZ_ZIP_ARRAY_ELEMENT(array_ptr, element_type, index) ((element_type *)((array_ptr)->m_p))[index] +#endif + +static MZ_FORCEINLINE void mz_zip_array_init(mz_zip_array *pArray, mz_uint32 element_size) +{ + memset(pArray, 0, sizeof(mz_zip_array)); + pArray->m_element_size = element_size; +} + +static MZ_FORCEINLINE void mz_zip_array_clear(mz_zip_archive *pZip, mz_zip_array *pArray) +{ + pZip->m_pFree(pZip->m_pAlloc_opaque, pArray->m_p); + memset(pArray, 0, sizeof(mz_zip_array)); +} + +static mz_bool mz_zip_array_ensure_capacity(mz_zip_archive *pZip, mz_zip_array *pArray, size_t min_new_capacity, mz_uint growing) +{ + void *pNew_p; + size_t new_capacity = min_new_capacity; + MZ_ASSERT(pArray->m_element_size); + if (pArray->m_capacity >= min_new_capacity) + return MZ_TRUE; + if (growing) + { + new_capacity = MZ_MAX(1, pArray->m_capacity); + while (new_capacity < min_new_capacity) + new_capacity *= 2; + } + if (NULL == (pNew_p = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pArray->m_p, pArray->m_element_size, new_capacity))) + return MZ_FALSE; + pArray->m_p = pNew_p; + pArray->m_capacity = new_capacity; + return MZ_TRUE; +} + +static MZ_FORCEINLINE mz_bool mz_zip_array_reserve(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_capacity, mz_uint growing) +{ + if (new_capacity > pArray->m_capacity) + { + if (!mz_zip_array_ensure_capacity(pZip, pArray, new_capacity, growing)) + return MZ_FALSE; + } + return MZ_TRUE; +} + +static MZ_FORCEINLINE mz_bool mz_zip_array_resize(mz_zip_archive *pZip, mz_zip_array *pArray, size_t new_size, mz_uint growing) +{ + if (new_size > pArray->m_capacity) + { + if (!mz_zip_array_ensure_capacity(pZip, pArray, new_size, growing)) + return MZ_FALSE; + } + pArray->m_size = new_size; + return MZ_TRUE; +} + +static MZ_FORCEINLINE mz_bool mz_zip_array_ensure_room(mz_zip_archive *pZip, mz_zip_array *pArray, size_t n) +{ + return mz_zip_array_reserve(pZip, pArray, pArray->m_size + n, MZ_TRUE); +} + +static MZ_FORCEINLINE mz_bool mz_zip_array_push_back(mz_zip_archive *pZip, mz_zip_array *pArray, const void *pElements, size_t n) +{ + size_t orig_size = pArray->m_size; + if (!mz_zip_array_resize(pZip, pArray, orig_size + n, MZ_TRUE)) + return MZ_FALSE; + if (n > 0) + memcpy((mz_uint8 *)pArray->m_p + orig_size * pArray->m_element_size, pElements, n * pArray->m_element_size); + return MZ_TRUE; +} + +#ifndef MINIZ_NO_TIME +static MZ_TIME_T mz_zip_dos_to_time_t(int dos_time, int dos_date) +{ + struct tm tm; + memset(&tm, 0, sizeof(tm)); + tm.tm_isdst = -1; + tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900; + tm.tm_mon = ((dos_date >> 5) & 15) - 1; + tm.tm_mday = dos_date & 31; + tm.tm_hour = (dos_time >> 11) & 31; + tm.tm_min = (dos_time >> 5) & 63; + tm.tm_sec = (dos_time << 1) & 62; + return mktime(&tm); +} + +#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS +static void mz_zip_time_t_to_dos_time(MZ_TIME_T time, mz_uint16 *pDOS_time, mz_uint16 *pDOS_date) +{ +#ifdef _MSC_VER + struct tm tm_struct; + struct tm *tm = &tm_struct; + errno_t err = localtime_s(tm, &time); + if (err) + { + *pDOS_date = 0; + *pDOS_time = 0; + return; + } +#else + struct tm *tm = localtime(&time); +#endif /* #ifdef _MSC_VER */ + + *pDOS_time = (mz_uint16)(((tm->tm_hour) << 11) + ((tm->tm_min) << 5) + ((tm->tm_sec) >> 1)); + *pDOS_date = (mz_uint16)(((tm->tm_year + 1900 - 1980) << 9) + ((tm->tm_mon + 1) << 5) + tm->tm_mday); +} +#endif /* MINIZ_NO_ARCHIVE_WRITING_APIS */ + +#ifndef MINIZ_NO_STDIO +#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS +static mz_bool mz_zip_get_file_modified_time(const char *pFilename, MZ_TIME_T *pTime) +{ + struct MZ_FILE_STAT_STRUCT file_stat; + + /* On Linux with x86 glibc, this call will fail on large files (I think >= 0x80000000 bytes) unless you compiled with _LARGEFILE64_SOURCE. Argh. */ + if (MZ_FILE_STAT(pFilename, &file_stat) != 0) + return MZ_FALSE; + + *pTime = file_stat.st_mtime; + + return MZ_TRUE; +} +#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS*/ + +static mz_bool mz_zip_set_file_times(const char *pFilename, MZ_TIME_T access_time, MZ_TIME_T modified_time) +{ + struct utimbuf t; + + memset(&t, 0, sizeof(t)); + t.actime = access_time; + t.modtime = modified_time; + + return !utime(pFilename, &t); +} +#endif /* #ifndef MINIZ_NO_STDIO */ +#endif /* #ifndef MINIZ_NO_TIME */ + +static MZ_FORCEINLINE mz_bool mz_zip_set_error(mz_zip_archive *pZip, mz_zip_error err_num) +{ + if (pZip) + pZip->m_last_error = err_num; + return MZ_FALSE; +} + +static mz_bool mz_zip_reader_init_internal(mz_zip_archive *pZip, mz_uint flags) +{ + (void)flags; + if ((!pZip) || (pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!pZip->m_pAlloc) + pZip->m_pAlloc = miniz_def_alloc_func; + if (!pZip->m_pFree) + pZip->m_pFree = miniz_def_free_func; + if (!pZip->m_pRealloc) + pZip->m_pRealloc = miniz_def_realloc_func; + + pZip->m_archive_size = 0; + pZip->m_central_directory_file_ofs = 0; + pZip->m_total_files = 0; + pZip->m_last_error = MZ_ZIP_NO_ERROR; + + if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state)))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state)); + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8)); + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32)); + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32)); + pZip->m_pState->m_init_flags = flags; + pZip->m_pState->m_zip64 = MZ_FALSE; + pZip->m_pState->m_zip64_has_extended_info_fields = MZ_FALSE; + + pZip->m_zip_mode = MZ_ZIP_MODE_READING; + + return MZ_TRUE; +} + +static MZ_FORCEINLINE mz_bool mz_zip_reader_filename_less(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, mz_uint r_index) +{ + const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE; + const mz_uint8 *pR = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, r_index)); + mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS), r_len = MZ_READ_LE16(pR + MZ_ZIP_CDH_FILENAME_LEN_OFS); + mz_uint8 l = 0, r = 0; + pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; + pR += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; + pE = pL + MZ_MIN(l_len, r_len); + while (pL < pE) + { + if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR))) + break; + pL++; + pR++; + } + return (pL == pE) ? (l_len < r_len) : (l < r); +} + +#define MZ_SWAP_UINT32(a, b) \ + do \ + { \ + mz_uint32 t = a; \ + a = b; \ + b = t; \ + } \ + MZ_MACRO_END + +/* Heap sort of lowercased filenames, used to help accelerate plain central directory searches by mz_zip_reader_locate_file(). (Could also use qsort(), but it could allocate memory.) */ +static void mz_zip_reader_sort_central_dir_offsets_by_filename(mz_zip_archive *pZip) +{ + mz_zip_internal_state *pState = pZip->m_pState; + const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets; + const mz_zip_array *pCentral_dir = &pState->m_central_dir; + mz_uint32 *pIndices; + mz_uint32 start, end; + const mz_uint32 size = pZip->m_total_files; + + if (size <= 1U) + return; + + pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0); + + start = (size - 2U) >> 1U; + for (;;) + { + mz_uint64 child, root = start; + for (;;) + { + if ((child = (root << 1U) + 1U) >= size) + break; + child += (((child + 1U) < size) && (mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U]))); + if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child])) + break; + MZ_SWAP_UINT32(pIndices[root], pIndices[child]); + root = child; + } + if (!start) + break; + start--; + } + + end = size - 1; + while (end > 0) + { + mz_uint64 child, root = 0; + MZ_SWAP_UINT32(pIndices[end], pIndices[0]); + for (;;) + { + if ((child = (root << 1U) + 1U) >= end) + break; + child += (((child + 1U) < end) && mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[child], pIndices[child + 1U])); + if (!mz_zip_reader_filename_less(pCentral_dir, pCentral_dir_offsets, pIndices[root], pIndices[child])) + break; + MZ_SWAP_UINT32(pIndices[root], pIndices[child]); + root = child; + } + end--; + } +} + +static mz_bool mz_zip_reader_locate_header_sig(mz_zip_archive *pZip, mz_uint32 record_sig, mz_uint32 record_size, mz_int64 *pOfs) +{ + mz_int64 cur_file_ofs; + mz_uint32 buf_u32[4096 / sizeof(mz_uint32)]; + mz_uint8 *pBuf = (mz_uint8 *)buf_u32; + + /* Basic sanity checks - reject files which are too small */ + if (pZip->m_archive_size < record_size) + return MZ_FALSE; + + /* Find the record by scanning the file from the end towards the beginning. */ + cur_file_ofs = MZ_MAX((mz_int64)pZip->m_archive_size - (mz_int64)sizeof(buf_u32), 0); + for (;;) + { + int i, n = (int)MZ_MIN(sizeof(buf_u32), pZip->m_archive_size - cur_file_ofs); + + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, n) != (mz_uint)n) + return MZ_FALSE; + + for (i = n - 4; i >= 0; --i) + { + mz_uint s = MZ_READ_LE32(pBuf + i); + if (s == record_sig) + { + if ((pZip->m_archive_size - (cur_file_ofs + i)) >= record_size) + break; + } + } + + if (i >= 0) + { + cur_file_ofs += i; + break; + } + + /* Give up if we've searched the entire file, or we've gone back "too far" (~64kb) */ + if ((!cur_file_ofs) || ((pZip->m_archive_size - cur_file_ofs) >= (MZ_UINT16_MAX + record_size))) + return MZ_FALSE; + + cur_file_ofs = MZ_MAX(cur_file_ofs - (sizeof(buf_u32) - 3), 0); + } + + *pOfs = cur_file_ofs; + return MZ_TRUE; +} + +static mz_bool mz_zip_reader_read_central_dir(mz_zip_archive *pZip, mz_uint flags) +{ + mz_uint cdir_size = 0, cdir_entries_on_this_disk = 0, num_this_disk = 0, cdir_disk_index = 0; + mz_uint64 cdir_ofs = 0; + mz_int64 cur_file_ofs = 0; + const mz_uint8 *p; + + mz_uint32 buf_u32[4096 / sizeof(mz_uint32)]; + mz_uint8 *pBuf = (mz_uint8 *)buf_u32; + mz_bool sort_central_dir = ((flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0); + mz_uint32 zip64_end_of_central_dir_locator_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pZip64_locator = (mz_uint8 *)zip64_end_of_central_dir_locator_u32; + + mz_uint32 zip64_end_of_central_dir_header_u32[(MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pZip64_end_of_central_dir = (mz_uint8 *)zip64_end_of_central_dir_header_u32; + + mz_uint64 zip64_end_of_central_dir_ofs = 0; + + /* Basic sanity checks - reject files which are too small, and check the first 4 bytes of the file to make sure a local header is there. */ + if (pZip->m_archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + + if (!mz_zip_reader_locate_header_sig(pZip, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE, &cur_file_ofs)) + return mz_zip_set_error(pZip, MZ_ZIP_FAILED_FINDING_CENTRAL_DIR); + + /* Read and verify the end of central directory record. */ + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + if (MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_SIG_OFS) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + + if (cur_file_ofs >= (MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE + MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)) + { + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs - MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE, pZip64_locator, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) + { + if (MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG) + { + zip64_end_of_central_dir_ofs = MZ_READ_LE64(pZip64_locator + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS); + if (zip64_end_of_central_dir_ofs > (pZip->m_archive_size - MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE)) + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + + if (pZip->m_pRead(pZip->m_pIO_opaque, zip64_end_of_central_dir_ofs, pZip64_end_of_central_dir, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) + { + if (MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIG_OFS) == MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG) + { + pZip->m_pState->m_zip64 = MZ_TRUE; + } + } + } + } + } + + pZip->m_total_files = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS); + cdir_entries_on_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS); + num_this_disk = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_THIS_DISK_OFS); + cdir_disk_index = MZ_READ_LE16(pBuf + MZ_ZIP_ECDH_NUM_DISK_CDIR_OFS); + cdir_size = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_SIZE_OFS); + cdir_ofs = MZ_READ_LE32(pBuf + MZ_ZIP_ECDH_CDIR_OFS_OFS); + + if (pZip->m_pState->m_zip64) + { + mz_uint32 zip64_total_num_of_disks = MZ_READ_LE32(pZip64_locator + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS); + mz_uint64 zip64_cdir_total_entries = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS); + mz_uint64 zip64_cdir_total_entries_on_this_disk = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS); + mz_uint64 zip64_size_of_end_of_central_dir_record = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS); + mz_uint64 zip64_size_of_central_directory = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_SIZE_OFS); + + if (zip64_size_of_end_of_central_dir_record < (MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - 12)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if (zip64_total_num_of_disks != 1U) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK); + + /* Check for miniz's practical limits */ + if (zip64_cdir_total_entries > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + + pZip->m_total_files = (mz_uint32)zip64_cdir_total_entries; + + if (zip64_cdir_total_entries_on_this_disk > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + + cdir_entries_on_this_disk = (mz_uint32)zip64_cdir_total_entries_on_this_disk; + + /* Check for miniz's current practical limits (sorry, this should be enough for millions of files) */ + if (zip64_size_of_central_directory > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + + cdir_size = (mz_uint32)zip64_size_of_central_directory; + + num_this_disk = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_THIS_DISK_OFS); + + cdir_disk_index = MZ_READ_LE32(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_NUM_DISK_CDIR_OFS); + + cdir_ofs = MZ_READ_LE64(pZip64_end_of_central_dir + MZ_ZIP64_ECDH_CDIR_OFS_OFS); + } + + if (pZip->m_total_files != cdir_entries_on_this_disk) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK); + + if (((num_this_disk | cdir_disk_index) != 0) && ((num_this_disk != 1) || (cdir_disk_index != 1))) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK); + + if (cdir_size < (mz_uint64)pZip->m_total_files * MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if ((cdir_ofs + (mz_uint64)cdir_size) > pZip->m_archive_size) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + pZip->m_central_directory_file_ofs = cdir_ofs; + + if (pZip->m_total_files) + { + mz_uint i, n; + /* Read the entire central directory into a heap block, and allocate another heap block to hold the unsorted central dir file record offsets, and possibly another to hold the sorted indices. */ + if ((!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir, cdir_size, MZ_FALSE)) || + (!mz_zip_array_resize(pZip, &pZip->m_pState->m_central_dir_offsets, pZip->m_total_files, MZ_FALSE))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + if (sort_central_dir) + { + if (!mz_zip_array_resize(pZip, &pZip->m_pState->m_sorted_central_dir_offsets, pZip->m_total_files, MZ_FALSE)) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs, pZip->m_pState->m_central_dir.m_p, cdir_size) != cdir_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + /* Now create an index into the central directory file records, do some basic sanity checking on each record */ + p = (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p; + for (n = cdir_size, i = 0; i < pZip->m_total_files; ++i) + { + mz_uint total_header_size, disk_index, bit_flags, filename_size, ext_data_size; + mz_uint64 comp_size, decomp_size, local_header_ofs; + + if ((n < MZ_ZIP_CENTRAL_DIR_HEADER_SIZE) || (MZ_READ_LE32(p) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, i) = (mz_uint32)(p - (const mz_uint8 *)pZip->m_pState->m_central_dir.m_p); + + if (sort_central_dir) + MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_sorted_central_dir_offsets, mz_uint32, i) = i; + + comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); + decomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS); + local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS); + filename_size = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); + ext_data_size = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS); + + if ((!pZip->m_pState->m_zip64_has_extended_info_fields) && + (ext_data_size) && + (MZ_MAX(MZ_MAX(comp_size, decomp_size), local_header_ofs) == MZ_UINT32_MAX)) + { + /* Attempt to find zip64 extended information field in the entry's extra data */ + mz_uint32 extra_size_remaining = ext_data_size; + + if (extra_size_remaining) + { + const mz_uint8 *pExtra_data; + void* buf = NULL; + + if (MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + ext_data_size > n) + { + buf = MZ_MALLOC(ext_data_size); + if(buf==NULL) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + if (pZip->m_pRead(pZip->m_pIO_opaque, cdir_ofs + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size, buf, ext_data_size) != ext_data_size) + { + MZ_FREE(buf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + + pExtra_data = (mz_uint8*)buf; + } + else + { + pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size; + } + + do + { + mz_uint32 field_id; + mz_uint32 field_data_size; + + if (extra_size_remaining < (sizeof(mz_uint16) * 2)) + { + MZ_FREE(buf); + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + field_id = MZ_READ_LE16(pExtra_data); + field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16)); + + if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining) + { + MZ_FREE(buf); + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) + { + /* Ok, the archive didn't have any zip64 headers but it uses a zip64 extended information field so mark it as zip64 anyway (this can occur with infozip's zip util when it reads compresses files from stdin). */ + pZip->m_pState->m_zip64 = MZ_TRUE; + pZip->m_pState->m_zip64_has_extended_info_fields = MZ_TRUE; + break; + } + + pExtra_data += sizeof(mz_uint16) * 2 + field_data_size; + extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size; + } while (extra_size_remaining); + + MZ_FREE(buf); + } + } + + /* I've seen archives that aren't marked as zip64 that uses zip64 ext data, argh */ + if ((comp_size != MZ_UINT32_MAX) && (decomp_size != MZ_UINT32_MAX)) + { + if (((!MZ_READ_LE32(p + MZ_ZIP_CDH_METHOD_OFS)) && (decomp_size != comp_size)) || (decomp_size && !comp_size)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + disk_index = MZ_READ_LE16(p + MZ_ZIP_CDH_DISK_START_OFS); + if ((disk_index == MZ_UINT16_MAX) || ((disk_index != num_this_disk) && (disk_index != 1))) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_MULTIDISK); + + if (comp_size != MZ_UINT32_MAX) + { + if (((mz_uint64)MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS) + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + comp_size) > pZip->m_archive_size) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + bit_flags = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); + if (bit_flags & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_LOCAL_DIR_IS_MASKED) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + + if ((total_header_size = MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS)) > n) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + n -= total_header_size; + p += total_header_size; + } + } + + if (sort_central_dir) + mz_zip_reader_sort_central_dir_offsets_by_filename(pZip); + + return MZ_TRUE; +} + +void mz_zip_zero_struct(mz_zip_archive *pZip) +{ + if (pZip) + MZ_CLEAR_PTR(pZip); +} + +static mz_bool mz_zip_reader_end_internal(mz_zip_archive *pZip, mz_bool set_last_error) +{ + mz_bool status = MZ_TRUE; + + if (!pZip) + return MZ_FALSE; + + if ((!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) + { + if (set_last_error) + pZip->m_last_error = MZ_ZIP_INVALID_PARAMETER; + + return MZ_FALSE; + } + + if (pZip->m_pState) + { + mz_zip_internal_state *pState = pZip->m_pState; + pZip->m_pState = NULL; + + mz_zip_array_clear(pZip, &pState->m_central_dir); + mz_zip_array_clear(pZip, &pState->m_central_dir_offsets); + mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets); + +#ifndef MINIZ_NO_STDIO + if (pState->m_pFile) + { + if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) + { + if (MZ_FCLOSE(pState->m_pFile) == EOF) + { + if (set_last_error) + pZip->m_last_error = MZ_ZIP_FILE_CLOSE_FAILED; + status = MZ_FALSE; + } + } + pState->m_pFile = NULL; + } +#endif /* #ifndef MINIZ_NO_STDIO */ + + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + } + pZip->m_zip_mode = MZ_ZIP_MODE_INVALID; + + return status; +} + +mz_bool mz_zip_reader_end(mz_zip_archive *pZip) +{ + return mz_zip_reader_end_internal(pZip, MZ_TRUE); +} +mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint flags) +{ + if ((!pZip) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!mz_zip_reader_init_internal(pZip, flags)) + return MZ_FALSE; + + pZip->m_zip_type = MZ_ZIP_TYPE_USER; + pZip->m_archive_size = size; + + if (!mz_zip_reader_read_central_dir(pZip, flags)) + { + mz_zip_reader_end_internal(pZip, MZ_FALSE); + return MZ_FALSE; + } + + return MZ_TRUE; +} + +static size_t mz_zip_mem_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n) +{ + mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; + size_t s = (file_ofs >= pZip->m_archive_size) ? 0 : (size_t)MZ_MIN(pZip->m_archive_size - file_ofs, n); + memcpy(pBuf, (const mz_uint8 *)pZip->m_pState->m_pMem + file_ofs, s); + return s; +} + +mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint flags) +{ + if (!pMem) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + + if (!mz_zip_reader_init_internal(pZip, flags)) + return MZ_FALSE; + + pZip->m_zip_type = MZ_ZIP_TYPE_MEMORY; + pZip->m_archive_size = size; + pZip->m_pRead = mz_zip_mem_read_func; + pZip->m_pIO_opaque = pZip; + pZip->m_pNeeds_keepalive = NULL; + +#ifdef __cplusplus + pZip->m_pState->m_pMem = const_cast(pMem); +#else + pZip->m_pState->m_pMem = (void *)pMem; +#endif + + pZip->m_pState->m_mem_size = size; + + if (!mz_zip_reader_read_central_dir(pZip, flags)) + { + mz_zip_reader_end_internal(pZip, MZ_FALSE); + return MZ_FALSE; + } + + return MZ_TRUE; +} + +#ifndef MINIZ_NO_STDIO +static size_t mz_zip_file_read_func(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n) +{ + mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; + mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile); + + file_ofs += pZip->m_pState->m_file_archive_start_ofs; + + if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET)))) + return 0; + + return MZ_FREAD(pBuf, 1, n, pZip->m_pState->m_pFile); +} + +mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags) +{ + return mz_zip_reader_init_file_v2(pZip, pFilename, flags, 0, 0); +} + +mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags, mz_uint64 file_start_ofs, mz_uint64 archive_size) +{ + mz_uint64 file_size; + MZ_FILE *pFile; + + if ((!pZip) || (!pFilename) || ((archive_size) && (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE))) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pFile = MZ_FOPEN(pFilename, "rb"); + if (!pFile) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + + file_size = archive_size; + if (!file_size) + { + if (MZ_FSEEK64(pFile, 0, SEEK_END)) + { + MZ_FCLOSE(pFile); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED); + } + + file_size = MZ_FTELL64(pFile); + } + + /* TODO: Better sanity check archive_size and the # of actual remaining bytes */ + + if (file_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + { + MZ_FCLOSE(pFile); + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + } + + if (!mz_zip_reader_init_internal(pZip, flags)) + { + MZ_FCLOSE(pFile); + return MZ_FALSE; + } + + pZip->m_zip_type = MZ_ZIP_TYPE_FILE; + pZip->m_pRead = mz_zip_file_read_func; + pZip->m_pIO_opaque = pZip; + pZip->m_pState->m_pFile = pFile; + pZip->m_archive_size = file_size; + pZip->m_pState->m_file_archive_start_ofs = file_start_ofs; + + if (!mz_zip_reader_read_central_dir(pZip, flags)) + { + mz_zip_reader_end_internal(pZip, MZ_FALSE); + return MZ_FALSE; + } + + return MZ_TRUE; +} + +mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint64 archive_size, mz_uint flags) +{ + mz_uint64 cur_file_ofs; + + if ((!pZip) || (!pFile)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + + cur_file_ofs = MZ_FTELL64(pFile); + + if (!archive_size) + { + if (MZ_FSEEK64(pFile, 0, SEEK_END)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED); + + archive_size = MZ_FTELL64(pFile) - cur_file_ofs; + + if (archive_size < MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_NOT_AN_ARCHIVE); + } + + if (!mz_zip_reader_init_internal(pZip, flags)) + return MZ_FALSE; + + pZip->m_zip_type = MZ_ZIP_TYPE_CFILE; + pZip->m_pRead = mz_zip_file_read_func; + + pZip->m_pIO_opaque = pZip; + pZip->m_pState->m_pFile = pFile; + pZip->m_archive_size = archive_size; + pZip->m_pState->m_file_archive_start_ofs = cur_file_ofs; + + if (!mz_zip_reader_read_central_dir(pZip, flags)) + { + mz_zip_reader_end_internal(pZip, MZ_FALSE); + return MZ_FALSE; + } + + return MZ_TRUE; +} + +#endif /* #ifndef MINIZ_NO_STDIO */ + +static MZ_FORCEINLINE const mz_uint8 *mz_zip_get_cdh(mz_zip_archive *pZip, mz_uint file_index) +{ + if ((!pZip) || (!pZip->m_pState) || (file_index >= pZip->m_total_files)) + return NULL; + return &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index)); +} + +mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index) +{ + mz_uint m_bit_flag; + const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index); + if (!p) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + return MZ_FALSE; + } + + m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); + return (m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) != 0; +} + +mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip, mz_uint file_index) +{ + mz_uint bit_flag; + mz_uint method; + + const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index); + if (!p) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + return MZ_FALSE; + } + + method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS); + bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); + + if ((method != 0) && (method != MZ_DEFLATED)) + { + mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD); + return MZ_FALSE; + } + + if (bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION)) + { + mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + return MZ_FALSE; + } + + if (bit_flag & MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG) + { + mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE); + return MZ_FALSE; + } + + return MZ_TRUE; +} + +mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index) +{ + mz_uint filename_len, attribute_mapping_id, external_attr; + const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index); + if (!p) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + return MZ_FALSE; + } + + filename_len = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); + if (filename_len) + { + if (*(p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_len - 1) == '/') + return MZ_TRUE; + } + + /* Bugfix: This code was also checking if the internal attribute was non-zero, which wasn't correct. */ + /* Most/all zip writers (hopefully) set DOS file/directory attributes in the low 16-bits, so check for the DOS directory flag and ignore the source OS ID in the created by field. */ + /* FIXME: Remove this check? Is it necessary - we already check the filename. */ + attribute_mapping_id = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS) >> 8; + (void)attribute_mapping_id; + + external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS); + if ((external_attr & MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG) != 0) + { + return MZ_TRUE; + } + + return MZ_FALSE; +} + +static mz_bool mz_zip_file_stat_internal(mz_zip_archive *pZip, mz_uint file_index, const mz_uint8 *pCentral_dir_header, mz_zip_archive_file_stat *pStat, mz_bool *pFound_zip64_extra_data) +{ + mz_uint n; + const mz_uint8 *p = pCentral_dir_header; + + if (pFound_zip64_extra_data) + *pFound_zip64_extra_data = MZ_FALSE; + + if ((!p) || (!pStat)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + /* Extract fields from the central directory record. */ + pStat->m_file_index = file_index; + pStat->m_central_dir_ofs = MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index); + pStat->m_version_made_by = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_MADE_BY_OFS); + pStat->m_version_needed = MZ_READ_LE16(p + MZ_ZIP_CDH_VERSION_NEEDED_OFS); + pStat->m_bit_flag = MZ_READ_LE16(p + MZ_ZIP_CDH_BIT_FLAG_OFS); + pStat->m_method = MZ_READ_LE16(p + MZ_ZIP_CDH_METHOD_OFS); +#ifndef MINIZ_NO_TIME + pStat->m_time = mz_zip_dos_to_time_t(MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_TIME_OFS), MZ_READ_LE16(p + MZ_ZIP_CDH_FILE_DATE_OFS)); +#endif + pStat->m_crc32 = MZ_READ_LE32(p + MZ_ZIP_CDH_CRC32_OFS); + pStat->m_comp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS); + pStat->m_uncomp_size = MZ_READ_LE32(p + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS); + pStat->m_internal_attr = MZ_READ_LE16(p + MZ_ZIP_CDH_INTERNAL_ATTR_OFS); + pStat->m_external_attr = MZ_READ_LE32(p + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS); + pStat->m_local_header_ofs = MZ_READ_LE32(p + MZ_ZIP_CDH_LOCAL_HEADER_OFS); + + /* Copy as much of the filename and comment as possible. */ + n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); + n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE - 1); + memcpy(pStat->m_filename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n); + pStat->m_filename[n] = '\0'; + + n = MZ_READ_LE16(p + MZ_ZIP_CDH_COMMENT_LEN_OFS); + n = MZ_MIN(n, MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE - 1); + pStat->m_comment_size = n; + memcpy(pStat->m_comment, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS) + MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS), n); + pStat->m_comment[n] = '\0'; + + /* Set some flags for convienance */ + pStat->m_is_directory = mz_zip_reader_is_file_a_directory(pZip, file_index); + pStat->m_is_encrypted = mz_zip_reader_is_file_encrypted(pZip, file_index); + pStat->m_is_supported = mz_zip_reader_is_file_supported(pZip, file_index); + + /* See if we need to read any zip64 extended information fields. */ + /* Confusingly, these zip64 fields can be present even on non-zip64 archives (Debian zip on a huge files from stdin piped to stdout creates them). */ + if (MZ_MAX(MZ_MAX(pStat->m_comp_size, pStat->m_uncomp_size), pStat->m_local_header_ofs) == MZ_UINT32_MAX) + { + /* Attempt to find zip64 extended information field in the entry's extra data */ + mz_uint32 extra_size_remaining = MZ_READ_LE16(p + MZ_ZIP_CDH_EXTRA_LEN_OFS); + + if (extra_size_remaining) + { + const mz_uint8 *pExtra_data = p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); + + do + { + mz_uint32 field_id; + mz_uint32 field_data_size; + + if (extra_size_remaining < (sizeof(mz_uint16) * 2)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + field_id = MZ_READ_LE16(pExtra_data); + field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16)); + + if ((field_data_size + sizeof(mz_uint16) * 2) > extra_size_remaining) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) + { + const mz_uint8 *pField_data = pExtra_data + sizeof(mz_uint16) * 2; + mz_uint32 field_data_remaining = field_data_size; + + if (pFound_zip64_extra_data) + *pFound_zip64_extra_data = MZ_TRUE; + + if (pStat->m_uncomp_size == MZ_UINT32_MAX) + { + if (field_data_remaining < sizeof(mz_uint64)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + pStat->m_uncomp_size = MZ_READ_LE64(pField_data); + pField_data += sizeof(mz_uint64); + field_data_remaining -= sizeof(mz_uint64); + } + + if (pStat->m_comp_size == MZ_UINT32_MAX) + { + if (field_data_remaining < sizeof(mz_uint64)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + pStat->m_comp_size = MZ_READ_LE64(pField_data); + pField_data += sizeof(mz_uint64); + field_data_remaining -= sizeof(mz_uint64); + } + + if (pStat->m_local_header_ofs == MZ_UINT32_MAX) + { + if (field_data_remaining < sizeof(mz_uint64)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + pStat->m_local_header_ofs = MZ_READ_LE64(pField_data); + pField_data += sizeof(mz_uint64); + field_data_remaining -= sizeof(mz_uint64); + } + + break; + } + + pExtra_data += sizeof(mz_uint16) * 2 + field_data_size; + extra_size_remaining = extra_size_remaining - sizeof(mz_uint16) * 2 - field_data_size; + } while (extra_size_remaining); + } + } + + return MZ_TRUE; +} + +static MZ_FORCEINLINE mz_bool mz_zip_string_equal(const char *pA, const char *pB, mz_uint len, mz_uint flags) +{ + mz_uint i; + if (flags & MZ_ZIP_FLAG_CASE_SENSITIVE) + return 0 == memcmp(pA, pB, len); + for (i = 0; i < len; ++i) + if (MZ_TOLOWER(pA[i]) != MZ_TOLOWER(pB[i])) + return MZ_FALSE; + return MZ_TRUE; +} + +static MZ_FORCEINLINE int mz_zip_filename_compare(const mz_zip_array *pCentral_dir_array, const mz_zip_array *pCentral_dir_offsets, mz_uint l_index, const char *pR, mz_uint r_len) +{ + const mz_uint8 *pL = &MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_array, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(pCentral_dir_offsets, mz_uint32, l_index)), *pE; + mz_uint l_len = MZ_READ_LE16(pL + MZ_ZIP_CDH_FILENAME_LEN_OFS); + mz_uint8 l = 0, r = 0; + pL += MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; + pE = pL + MZ_MIN(l_len, r_len); + while (pL < pE) + { + if ((l = MZ_TOLOWER(*pL)) != (r = MZ_TOLOWER(*pR))) + break; + pL++; + pR++; + } + return (pL == pE) ? (int)(l_len - r_len) : (l - r); +} + +static mz_bool mz_zip_locate_file_binary_search(mz_zip_archive *pZip, const char *pFilename, mz_uint32 *pIndex) +{ + mz_zip_internal_state *pState = pZip->m_pState; + const mz_zip_array *pCentral_dir_offsets = &pState->m_central_dir_offsets; + const mz_zip_array *pCentral_dir = &pState->m_central_dir; + mz_uint32 *pIndices = &MZ_ZIP_ARRAY_ELEMENT(&pState->m_sorted_central_dir_offsets, mz_uint32, 0); + const mz_uint32 size = pZip->m_total_files; + const mz_uint filename_len = (mz_uint)strlen(pFilename); + + if (pIndex) + *pIndex = 0; + + if (size) + { + /* yes I could use uint32_t's, but then we would have to add some special case checks in the loop, argh, and */ + /* honestly the major expense here on 32-bit CPU's will still be the filename compare */ + mz_int64 l = 0, h = (mz_int64)size - 1; + + while (l <= h) + { + mz_int64 m = l + ((h - l) >> 1); + mz_uint32 file_index = pIndices[(mz_uint32)m]; + + int comp = mz_zip_filename_compare(pCentral_dir, pCentral_dir_offsets, file_index, pFilename, filename_len); + if (!comp) + { + if (pIndex) + *pIndex = file_index; + return MZ_TRUE; + } + else if (comp < 0) + l = m + 1; + else + h = m - 1; + } + } + + return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND); +} + +int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags) +{ + mz_uint32 index; + if (!mz_zip_reader_locate_file_v2(pZip, pName, pComment, flags, &index)) + return -1; + else + return (int)index; +} + +mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags, mz_uint32 *pIndex) +{ + mz_uint file_index; + size_t name_len, comment_len; + + if (pIndex) + *pIndex = 0; + + if ((!pZip) || (!pZip->m_pState) || (!pName)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + /* See if we can use a binary search */ + if (((pZip->m_pState->m_init_flags & MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY) == 0) && + (pZip->m_zip_mode == MZ_ZIP_MODE_READING) && + ((flags & (MZ_ZIP_FLAG_IGNORE_PATH | MZ_ZIP_FLAG_CASE_SENSITIVE)) == 0) && (!pComment) && (pZip->m_pState->m_sorted_central_dir_offsets.m_size)) + { + return mz_zip_locate_file_binary_search(pZip, pName, pIndex); + } + + /* Locate the entry by scanning the entire central directory */ + name_len = strlen(pName); + if (name_len > MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + comment_len = pComment ? strlen(pComment) : 0; + if (comment_len > MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + for (file_index = 0; file_index < pZip->m_total_files; file_index++) + { + const mz_uint8 *pHeader = &MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir, mz_uint8, MZ_ZIP_ARRAY_ELEMENT(&pZip->m_pState->m_central_dir_offsets, mz_uint32, file_index)); + mz_uint filename_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_FILENAME_LEN_OFS); + const char *pFilename = (const char *)pHeader + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE; + if (filename_len < name_len) + continue; + if (comment_len) + { + mz_uint file_extra_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_EXTRA_LEN_OFS), file_comment_len = MZ_READ_LE16(pHeader + MZ_ZIP_CDH_COMMENT_LEN_OFS); + const char *pFile_comment = pFilename + filename_len + file_extra_len; + if ((file_comment_len != comment_len) || (!mz_zip_string_equal(pComment, pFile_comment, file_comment_len, flags))) + continue; + } + if ((flags & MZ_ZIP_FLAG_IGNORE_PATH) && (filename_len)) + { + int ofs = filename_len - 1; + do + { + if ((pFilename[ofs] == '/') || (pFilename[ofs] == '\\') || (pFilename[ofs] == ':')) + break; + } while (--ofs >= 0); + ofs++; + pFilename += ofs; + filename_len -= ofs; + } + if ((filename_len == name_len) && (mz_zip_string_equal(pName, pFilename, filename_len, flags))) + { + if (pIndex) + *pIndex = file_index; + return MZ_TRUE; + } + } + + return mz_zip_set_error(pZip, MZ_ZIP_FILE_NOT_FOUND); +} + +static +mz_bool mz_zip_reader_extract_to_mem_no_alloc1(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size, const mz_zip_archive_file_stat *st) +{ + int status = TINFL_STATUS_DONE; + mz_uint64 needed_size, cur_file_ofs, comp_remaining, out_buf_ofs = 0, read_buf_size, read_buf_ofs = 0, read_buf_avail; + mz_zip_archive_file_stat file_stat; + void *pRead_buf; + mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; + tinfl_decompressor inflator; + + if ((!pZip) || (!pZip->m_pState) || ((buf_size) && (!pBuf)) || ((user_read_buf_size) && (!pUser_read_buf)) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (st) { + file_stat = *st; + } else + if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) + return MZ_FALSE; + + /* A directory or zero length file */ + if ((file_stat.m_is_directory) || (!file_stat.m_comp_size)) + return MZ_TRUE; + + /* Encryption and patch files are not supported. */ + if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + + /* This function only supports decompressing stored and deflate. */ + if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD); + + /* Ensure supplied output buffer is large enough. */ + needed_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size; + if (buf_size < needed_size) + return mz_zip_set_error(pZip, MZ_ZIP_BUF_TOO_SMALL); + + /* Read and parse the local directory entry. */ + cur_file_ofs = file_stat.m_local_header_ofs; + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); + if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method)) + { + /* The file is stored or the caller has requested the compressed data. */ + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pBuf, (size_t)needed_size) != needed_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) == 0) + { + if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32) + return mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED); + } +#endif + + return MZ_TRUE; + } + + /* Decompress the file either directly from memory or from a file input buffer. */ + tinfl_init(&inflator); + + if (pZip->m_pState->m_pMem) + { + /* Read directly from the archive in memory. */ + pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs; + read_buf_size = read_buf_avail = file_stat.m_comp_size; + comp_remaining = 0; + } + else if (pUser_read_buf) + { + /* Use a user provided read buffer. */ + if (!user_read_buf_size) + return MZ_FALSE; + pRead_buf = (mz_uint8 *)pUser_read_buf; + read_buf_size = user_read_buf_size; + read_buf_avail = 0; + comp_remaining = file_stat.m_comp_size; + } + else + { + /* Temporarily allocate a read buffer. */ + read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE); + if (((sizeof(size_t) == sizeof(mz_uint32))) && (read_buf_size > 0x7FFFFFFF)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + read_buf_avail = 0; + comp_remaining = file_stat.m_comp_size; + } + + do + { + /* The size_t cast here should be OK because we've verified that the output buffer is >= file_stat.m_uncomp_size above */ + size_t in_buf_size, out_buf_size = (size_t)(file_stat.m_uncomp_size - out_buf_ofs); + if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) + { + read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail) + { + status = TINFL_STATUS_FAILED; + mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED); + break; + } + cur_file_ofs += read_buf_avail; + comp_remaining -= read_buf_avail; + read_buf_ofs = 0; + } + in_buf_size = (size_t)read_buf_avail; + status = tinfl_decompress(&inflator, (mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pBuf, (mz_uint8 *)pBuf + out_buf_ofs, &out_buf_size, TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF | (comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0)); + read_buf_avail -= in_buf_size; + read_buf_ofs += in_buf_size; + out_buf_ofs += out_buf_size; + } while (status == TINFL_STATUS_NEEDS_MORE_INPUT); + + if (status == TINFL_STATUS_DONE) + { + /* Make sure the entire file was decompressed, and check its CRC. */ + if (out_buf_ofs != file_stat.m_uncomp_size) + { + mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE); + status = TINFL_STATUS_FAILED; + } +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + else if (mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, (size_t)file_stat.m_uncomp_size) != file_stat.m_crc32) + { + mz_zip_set_error(pZip, MZ_ZIP_CRC_CHECK_FAILED); + status = TINFL_STATUS_FAILED; + } +#endif + } + + if ((!pZip->m_pState->m_pMem) && (!pUser_read_buf)) + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + + return status == TINFL_STATUS_DONE; +} + +mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size) +{ + return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size, NULL); +} + +mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size) +{ + mz_uint32 file_index; + if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index)) + return MZ_FALSE; + return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, pUser_read_buf, user_read_buf_size, NULL); +} + +mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags) +{ + return mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, buf_size, flags, NULL, 0, NULL); +} + +mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags) +{ + return mz_zip_reader_extract_file_to_mem_no_alloc(pZip, pFilename, pBuf, buf_size, flags, NULL, 0); +} + +void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags) +{ + mz_zip_archive_file_stat file_stat; + mz_uint64 alloc_size; + void *pBuf; + + if (pSize) + *pSize = 0; + + if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) + return NULL; + + alloc_size = (flags & MZ_ZIP_FLAG_COMPRESSED_DATA) ? file_stat.m_comp_size : file_stat.m_uncomp_size; + if (((sizeof(size_t) == sizeof(mz_uint32))) && (alloc_size > 0x7FFFFFFF)) + { + mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + return NULL; + } + + if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)alloc_size))) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + return NULL; + } + + if (!mz_zip_reader_extract_to_mem_no_alloc1(pZip, file_index, pBuf, (size_t)alloc_size, flags, NULL, 0, &file_stat)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return NULL; + } + + if (pSize) + *pSize = (size_t)alloc_size; + return pBuf; +} + +void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags) +{ + mz_uint32 file_index; + if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index)) + { + if (pSize) + *pSize = 0; + return MZ_FALSE; + } + return mz_zip_reader_extract_to_heap(pZip, file_index, pSize, flags); +} + +mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, mz_uint file_index, mz_file_write_func pCallback, void *pOpaque, mz_uint flags) +{ + int status = TINFL_STATUS_DONE; +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + mz_uint file_crc32 = MZ_CRC32_INIT; +#endif + mz_uint64 read_buf_size, read_buf_ofs = 0, read_buf_avail, comp_remaining, out_buf_ofs = 0, cur_file_ofs; + mz_zip_archive_file_stat file_stat; + void *pRead_buf = NULL; + void *pWrite_buf = NULL; + mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; + + if ((!pZip) || (!pZip->m_pState) || (!pCallback) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) + return MZ_FALSE; + + /* A directory or zero length file */ + if ((file_stat.m_is_directory) || (!file_stat.m_comp_size)) + return MZ_TRUE; + + /* Encryption and patch files are not supported. */ + if (file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + + /* This function only supports decompressing stored and deflate. */ + if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD); + + /* Read and do some minimal validation of the local directory entry (this doesn't crack the zip64 stuff, which we already have from the central dir) */ + cur_file_ofs = file_stat.m_local_header_ofs; + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); + if ((cur_file_ofs + file_stat.m_comp_size) > pZip->m_archive_size) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + /* Decompress the file either directly from memory or from a file input buffer. */ + if (pZip->m_pState->m_pMem) + { + pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + cur_file_ofs; + read_buf_size = read_buf_avail = file_stat.m_comp_size; + comp_remaining = 0; + } + else + { + read_buf_size = MZ_MIN(file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE); + if (NULL == (pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)read_buf_size))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + read_buf_avail = 0; + comp_remaining = file_stat.m_comp_size; + } + + if ((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!file_stat.m_method)) + { + /* The file is stored or the caller has requested the compressed data. */ + if (pZip->m_pState->m_pMem) + { + if (((sizeof(size_t) == sizeof(mz_uint32))) && (file_stat.m_comp_size > MZ_UINT32_MAX)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)file_stat.m_comp_size) != file_stat.m_comp_size) + { + mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED); + status = TINFL_STATUS_FAILED; + } + else if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) + { +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)file_stat.m_comp_size); +#endif + } + + cur_file_ofs += file_stat.m_comp_size; + out_buf_ofs += file_stat.m_comp_size; + comp_remaining = 0; + } + else + { + while (comp_remaining) + { + read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + status = TINFL_STATUS_FAILED; + break; + } + +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + if (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) + { + file_crc32 = (mz_uint32)mz_crc32(file_crc32, (const mz_uint8 *)pRead_buf, (size_t)read_buf_avail); + } +#endif + + if (pCallback(pOpaque, out_buf_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail) + { + mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED); + status = TINFL_STATUS_FAILED; + break; + } + + cur_file_ofs += read_buf_avail; + out_buf_ofs += read_buf_avail; + comp_remaining -= read_buf_avail; + } + } + } + else + { + tinfl_decompressor inflator; + tinfl_init(&inflator); + + if (NULL == (pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE))) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + status = TINFL_STATUS_FAILED; + } + else + { + do + { + mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pWrite_buf + (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); + size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); + if ((!read_buf_avail) && (!pZip->m_pState->m_pMem)) + { + read_buf_avail = MZ_MIN(read_buf_size, comp_remaining); + if (pZip->m_pRead(pZip->m_pIO_opaque, cur_file_ofs, pRead_buf, (size_t)read_buf_avail) != read_buf_avail) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + status = TINFL_STATUS_FAILED; + break; + } + cur_file_ofs += read_buf_avail; + comp_remaining -= read_buf_avail; + read_buf_ofs = 0; + } + + in_buf_size = (size_t)read_buf_avail; + status = tinfl_decompress(&inflator, (const mz_uint8 *)pRead_buf + read_buf_ofs, &in_buf_size, (mz_uint8 *)pWrite_buf, pWrite_buf_cur, &out_buf_size, comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0); + read_buf_avail -= in_buf_size; + read_buf_ofs += in_buf_size; + + if (out_buf_size) + { + if (pCallback(pOpaque, out_buf_ofs, pWrite_buf_cur, out_buf_size) != out_buf_size) + { + mz_zip_set_error(pZip, MZ_ZIP_WRITE_CALLBACK_FAILED); + status = TINFL_STATUS_FAILED; + break; + } + +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + file_crc32 = (mz_uint32)mz_crc32(file_crc32, pWrite_buf_cur, out_buf_size); +#endif + if ((out_buf_ofs += out_buf_size) > file_stat.m_uncomp_size) + { + mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED); + status = TINFL_STATUS_FAILED; + break; + } + } + } while ((status == TINFL_STATUS_NEEDS_MORE_INPUT) || (status == TINFL_STATUS_HAS_MORE_OUTPUT)); + } + } + + if ((status == TINFL_STATUS_DONE) && (!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) + { + /* Make sure the entire file was decompressed, and check its CRC. */ + if (out_buf_ofs != file_stat.m_uncomp_size) + { + mz_zip_set_error(pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE); + status = TINFL_STATUS_FAILED; + } +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + else if (file_crc32 != file_stat.m_crc32) + { + mz_zip_set_error(pZip, MZ_ZIP_DECOMPRESSION_FAILED); + status = TINFL_STATUS_FAILED; + } +#endif + } + + if (!pZip->m_pState->m_pMem) + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + + if (pWrite_buf) + pZip->m_pFree(pZip->m_pAlloc_opaque, pWrite_buf); + + return status == TINFL_STATUS_DONE; +} + +mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, const char *pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags) +{ + mz_uint32 file_index; + if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index)) + return MZ_FALSE; + + return mz_zip_reader_extract_to_callback(pZip, file_index, pCallback, pOpaque, flags); +} + +mz_zip_reader_extract_iter_state* mz_zip_reader_extract_iter_new(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags) +{ + mz_zip_reader_extract_iter_state *pState; + mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; + + /* Argument sanity check */ + if ((!pZip) || (!pZip->m_pState)) + return NULL; + + /* Allocate an iterator status structure */ + pState = (mz_zip_reader_extract_iter_state*)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_reader_extract_iter_state)); + if (!pState) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + return NULL; + } + + /* Fetch file details */ + if (!mz_zip_reader_file_stat(pZip, file_index, &pState->file_stat)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + /* Encryption and patch files are not supported. */ + if (pState->file_stat.m_bit_flag & (MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_IS_ENCRYPTED | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_USES_STRONG_ENCRYPTION | MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_COMPRESSED_PATCH_FLAG)) + { + mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + /* This function only supports decompressing stored and deflate. */ + if ((!(flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (pState->file_stat.m_method != 0) && (pState->file_stat.m_method != MZ_DEFLATED)) + { + mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + /* Init state - save args */ + pState->pZip = pZip; + pState->flags = flags; + + /* Init state - reset variables to defaults */ + pState->status = TINFL_STATUS_DONE; +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + pState->file_crc32 = MZ_CRC32_INIT; +#endif + pState->read_buf_ofs = 0; + pState->out_buf_ofs = 0; + pState->pRead_buf = NULL; + pState->pWrite_buf = NULL; + pState->out_blk_remain = 0; + + /* Read and parse the local directory entry. */ + pState->cur_file_ofs = pState->file_stat.m_local_header_ofs; + if (pZip->m_pRead(pZip->m_pIO_opaque, pState->cur_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + pState->cur_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS) + MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); + if ((pState->cur_file_ofs + pState->file_stat.m_comp_size) > pZip->m_archive_size) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + + /* Decompress the file either directly from memory or from a file input buffer. */ + if (pZip->m_pState->m_pMem) + { + pState->pRead_buf = (mz_uint8 *)pZip->m_pState->m_pMem + pState->cur_file_ofs; + pState->read_buf_size = pState->read_buf_avail = pState->file_stat.m_comp_size; + pState->comp_remaining = pState->file_stat.m_comp_size; + } + else + { + if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method))) + { + /* Decompression required, therefore intermediate read buffer required */ + pState->read_buf_size = MZ_MIN(pState->file_stat.m_comp_size, (mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE); + if (NULL == (pState->pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)pState->read_buf_size))) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + } + else + { + /* Decompression not required - we will be reading directly into user buffer, no temp buf required */ + pState->read_buf_size = 0; + } + pState->read_buf_avail = 0; + pState->comp_remaining = pState->file_stat.m_comp_size; + } + + if (!((flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method))) + { + /* Decompression required, init decompressor */ + tinfl_init( &pState->inflator ); + + /* Allocate write buffer */ + if (NULL == (pState->pWrite_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, TINFL_LZ_DICT_SIZE))) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + if (pState->pRead_buf) + pZip->m_pFree(pZip->m_pAlloc_opaque, pState->pRead_buf); + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + return NULL; + } + } + + return pState; +} + +mz_zip_reader_extract_iter_state* mz_zip_reader_extract_file_iter_new(mz_zip_archive *pZip, const char *pFilename, mz_uint flags) +{ + mz_uint32 file_index; + + /* Locate file index by name */ + if (!mz_zip_reader_locate_file_v2(pZip, pFilename, NULL, flags, &file_index)) + return NULL; + + /* Construct iterator */ + return mz_zip_reader_extract_iter_new(pZip, file_index, flags); +} + +size_t mz_zip_reader_extract_iter_read(mz_zip_reader_extract_iter_state* pState, void* pvBuf, size_t buf_size) +{ + size_t copied_to_caller = 0; + + /* Argument sanity check */ + if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState) || (!pvBuf)) + return 0; + + if ((pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA) || (!pState->file_stat.m_method)) + { + /* The file is stored or the caller has requested the compressed data, calc amount to return. */ + copied_to_caller = (size_t)MZ_MIN( buf_size, pState->comp_remaining ); + + /* Zip is in memory....or requires reading from a file? */ + if (pState->pZip->m_pState->m_pMem) + { + /* Copy data to caller's buffer */ + memcpy( pvBuf, pState->pRead_buf, copied_to_caller ); + pState->pRead_buf = ((mz_uint8*)pState->pRead_buf) + copied_to_caller; + } + else + { + /* Read directly into caller's buffer */ + if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pvBuf, copied_to_caller) != copied_to_caller) + { + /* Failed to read all that was asked for, flag failure and alert user */ + mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED); + pState->status = TINFL_STATUS_FAILED; + copied_to_caller = 0; + } + } + +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + /* Compute CRC if not returning compressed data only */ + if (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) + pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, (const mz_uint8 *)pvBuf, copied_to_caller); +#endif + + /* Advance offsets, dec counters */ + pState->cur_file_ofs += copied_to_caller; + pState->out_buf_ofs += copied_to_caller; + pState->comp_remaining -= copied_to_caller; + } + else + { + do + { + /* Calc ptr to write buffer - given current output pos and block size */ + mz_uint8 *pWrite_buf_cur = (mz_uint8 *)pState->pWrite_buf + (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); + + /* Calc max output size - given current output pos and block size */ + size_t in_buf_size, out_buf_size = TINFL_LZ_DICT_SIZE - (pState->out_buf_ofs & (TINFL_LZ_DICT_SIZE - 1)); + + if (!pState->out_blk_remain) + { + /* Read more data from file if none available (and reading from file) */ + if ((!pState->read_buf_avail) && (!pState->pZip->m_pState->m_pMem)) + { + /* Calc read size */ + pState->read_buf_avail = MZ_MIN(pState->read_buf_size, pState->comp_remaining); + if (pState->pZip->m_pRead(pState->pZip->m_pIO_opaque, pState->cur_file_ofs, pState->pRead_buf, (size_t)pState->read_buf_avail) != pState->read_buf_avail) + { + mz_zip_set_error(pState->pZip, MZ_ZIP_FILE_READ_FAILED); + pState->status = TINFL_STATUS_FAILED; + break; + } + + /* Advance offsets, dec counters */ + pState->cur_file_ofs += pState->read_buf_avail; + pState->comp_remaining -= pState->read_buf_avail; + pState->read_buf_ofs = 0; + } + + /* Perform decompression */ + in_buf_size = (size_t)pState->read_buf_avail; + pState->status = tinfl_decompress(&pState->inflator, (const mz_uint8 *)pState->pRead_buf + pState->read_buf_ofs, &in_buf_size, (mz_uint8 *)pState->pWrite_buf, pWrite_buf_cur, &out_buf_size, pState->comp_remaining ? TINFL_FLAG_HAS_MORE_INPUT : 0); + pState->read_buf_avail -= in_buf_size; + pState->read_buf_ofs += in_buf_size; + + /* Update current output block size remaining */ + pState->out_blk_remain = out_buf_size; + } + + if (pState->out_blk_remain) + { + /* Calc amount to return. */ + size_t to_copy = MZ_MIN( (buf_size - copied_to_caller), pState->out_blk_remain ); + + /* Copy data to caller's buffer */ + memcpy( (mz_uint8*)pvBuf + copied_to_caller, pWrite_buf_cur, to_copy ); + +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + /* Perform CRC */ + pState->file_crc32 = (mz_uint32)mz_crc32(pState->file_crc32, pWrite_buf_cur, to_copy); +#endif + + /* Decrement data consumed from block */ + pState->out_blk_remain -= to_copy; + + /* Inc output offset, while performing sanity check */ + if ((pState->out_buf_ofs += to_copy) > pState->file_stat.m_uncomp_size) + { + mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED); + pState->status = TINFL_STATUS_FAILED; + break; + } + + /* Increment counter of data copied to caller */ + copied_to_caller += to_copy; + } + } while ( (copied_to_caller < buf_size) && ((pState->status == TINFL_STATUS_NEEDS_MORE_INPUT) || (pState->status == TINFL_STATUS_HAS_MORE_OUTPUT)) ); + } + + /* Return how many bytes were copied into user buffer */ + return copied_to_caller; +} + +mz_bool mz_zip_reader_extract_iter_free(mz_zip_reader_extract_iter_state* pState) +{ + int status; + + /* Argument sanity check */ + if ((!pState) || (!pState->pZip) || (!pState->pZip->m_pState)) + return MZ_FALSE; + + /* Was decompression completed and requested? */ + if ((pState->status == TINFL_STATUS_DONE) && (!(pState->flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) + { + /* Make sure the entire file was decompressed, and check its CRC. */ + if (pState->out_buf_ofs != pState->file_stat.m_uncomp_size) + { + mz_zip_set_error(pState->pZip, MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE); + pState->status = TINFL_STATUS_FAILED; + } +#ifndef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + else if (pState->file_crc32 != pState->file_stat.m_crc32) + { + mz_zip_set_error(pState->pZip, MZ_ZIP_DECOMPRESSION_FAILED); + pState->status = TINFL_STATUS_FAILED; + } +#endif + } + + /* Free buffers */ + if (!pState->pZip->m_pState->m_pMem) + pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pRead_buf); + if (pState->pWrite_buf) + pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState->pWrite_buf); + + /* Save status */ + status = pState->status; + + /* Free context */ + pState->pZip->m_pFree(pState->pZip->m_pAlloc_opaque, pState); + + return status == TINFL_STATUS_DONE; +} + +#ifndef MINIZ_NO_STDIO +static size_t mz_zip_file_write_callback(void *pOpaque, mz_uint64 ofs, const void *pBuf, size_t n) +{ + (void)ofs; + + return MZ_FWRITE(pBuf, 1, n, (MZ_FILE *)pOpaque); +} + +mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags) +{ + mz_bool status; + mz_zip_archive_file_stat file_stat; + MZ_FILE *pFile; + + if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) + return MZ_FALSE; + + if ((file_stat.m_is_directory) || (!file_stat.m_is_supported)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE); + + pFile = MZ_FOPEN(pDst_filename, "wb"); + if (!pFile) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + + status = mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags); + + if (MZ_FCLOSE(pFile) == EOF) + { + if (status) + mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED); + + status = MZ_FALSE; + } + +#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO) + if (status) + mz_zip_set_file_times(pDst_filename, file_stat.m_time, file_stat.m_time); +#endif + + return status; +} + +mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags) +{ + mz_uint32 file_index; + if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index)) + return MZ_FALSE; + + return mz_zip_reader_extract_to_file(pZip, file_index, pDst_filename, flags); +} + +mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip, mz_uint file_index, MZ_FILE *pFile, mz_uint flags) +{ + mz_zip_archive_file_stat file_stat; + + if (!mz_zip_reader_file_stat(pZip, file_index, &file_stat)) + return MZ_FALSE; + + if ((file_stat.m_is_directory) || (!file_stat.m_is_supported)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE); + + return mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_file_write_callback, pFile, flags); +} + +mz_bool mz_zip_reader_extract_file_to_cfile(mz_zip_archive *pZip, const char *pArchive_filename, MZ_FILE *pFile, mz_uint flags) +{ + mz_uint32 file_index; + if (!mz_zip_reader_locate_file_v2(pZip, pArchive_filename, NULL, flags, &file_index)) + return MZ_FALSE; + + return mz_zip_reader_extract_to_cfile(pZip, file_index, pFile, flags); +} +#endif /* #ifndef MINIZ_NO_STDIO */ + +static size_t mz_zip_compute_crc32_callback(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n) +{ + mz_uint32 *p = (mz_uint32 *)pOpaque; + (void)file_ofs; + *p = (mz_uint32)mz_crc32(*p, (const mz_uint8 *)pBuf, n); + return n; +} + +mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags) +{ + mz_zip_archive_file_stat file_stat; + mz_zip_internal_state *pState; + const mz_uint8 *pCentral_dir_header; + mz_bool found_zip64_ext_data_in_cdir = MZ_FALSE; + mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE; + mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; + mz_uint64 local_header_ofs = 0; + mz_uint32 local_header_filename_len, local_header_extra_len, local_header_crc32; + mz_uint64 local_header_comp_size, local_header_uncomp_size; + mz_uint32 uncomp_crc32 = MZ_CRC32_INIT; + mz_bool has_data_descriptor; + mz_uint32 local_header_bit_flags; + + mz_zip_array file_data_array; + mz_zip_array_init(&file_data_array, 1); + + if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (file_index > pZip->m_total_files) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + pCentral_dir_header = mz_zip_get_cdh(pZip, file_index); + + if (!mz_zip_file_stat_internal(pZip, file_index, pCentral_dir_header, &file_stat, &found_zip64_ext_data_in_cdir)) + return MZ_FALSE; + + /* A directory or zero length file */ + if ((file_stat.m_is_directory) || (!file_stat.m_uncomp_size)) + return MZ_TRUE; + + /* Encryption and patch files are not supported. */ + if (file_stat.m_is_encrypted) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_ENCRYPTION); + + /* This function only supports stored and deflate. */ + if ((file_stat.m_method != 0) && (file_stat.m_method != MZ_DEFLATED)) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_METHOD); + + if (!file_stat.m_is_supported) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_FEATURE); + + /* Read and parse the local directory entry. */ + local_header_ofs = file_stat.m_local_header_ofs; + if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + local_header_filename_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS); + local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); + local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS); + local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS); + local_header_crc32 = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_CRC32_OFS); + local_header_bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS); + has_data_descriptor = (local_header_bit_flags & 8) != 0; + + if (local_header_filename_len != strlen(file_stat.m_filename)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if ((local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size) > pZip->m_archive_size) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if (!mz_zip_array_resize(pZip, &file_data_array, MZ_MAX(local_header_filename_len, local_header_extra_len), MZ_FALSE)) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + goto handle_failure; + } + + if (local_header_filename_len) + { + if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE, file_data_array.m_p, local_header_filename_len) != local_header_filename_len) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + goto handle_failure; + } + + /* I've seen 1 archive that had the same pathname, but used backslashes in the local dir and forward slashes in the central dir. Do we care about this? For now, this case will fail validation. */ + if (memcmp(file_stat.m_filename, file_data_array.m_p, local_header_filename_len) != 0) + { + mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED); + goto handle_failure; + } + } + + if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX))) + { + mz_uint32 extra_size_remaining = local_header_extra_len; + const mz_uint8 *pExtra_data = (const mz_uint8 *)file_data_array.m_p; + + if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len, file_data_array.m_p, local_header_extra_len) != local_header_extra_len) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + goto handle_failure; + } + + do + { + mz_uint32 field_id, field_data_size, field_total_size; + + if (extra_size_remaining < (sizeof(mz_uint16) * 2)) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + goto handle_failure; + } + + field_id = MZ_READ_LE16(pExtra_data); + field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16)); + field_total_size = field_data_size + sizeof(mz_uint16) * 2; + + if (field_total_size > extra_size_remaining) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + goto handle_failure; + } + + if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) + { + const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32); + + if (field_data_size < sizeof(mz_uint64) * 2) + { + mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + goto handle_failure; + } + + local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data); + local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64)); + + found_zip64_ext_data_in_ldir = MZ_TRUE; + break; + } + + pExtra_data += field_total_size; + extra_size_remaining -= field_total_size; + } while (extra_size_remaining); + } + + /* TODO: parse local header extra data when local_header_comp_size is 0xFFFFFFFF! (big_descriptor.zip) */ + /* I've seen zips in the wild with the data descriptor bit set, but proper local header values and bogus data descriptors */ + if ((has_data_descriptor) && (!local_header_comp_size) && (!local_header_crc32)) + { + mz_uint8 descriptor_buf[32]; + mz_bool has_id; + const mz_uint8 *pSrc; + mz_uint32 file_crc32; + mz_uint64 comp_size = 0, uncomp_size = 0; + + mz_uint32 num_descriptor_uint32s = ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) ? 6 : 4; + + if (pZip->m_pRead(pZip->m_pIO_opaque, local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_len + local_header_extra_len + file_stat.m_comp_size, descriptor_buf, sizeof(mz_uint32) * num_descriptor_uint32s) != (sizeof(mz_uint32) * num_descriptor_uint32s)) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + goto handle_failure; + } + + has_id = (MZ_READ_LE32(descriptor_buf) == MZ_ZIP_DATA_DESCRIPTOR_ID); + pSrc = has_id ? (descriptor_buf + sizeof(mz_uint32)) : descriptor_buf; + + file_crc32 = MZ_READ_LE32(pSrc); + + if ((pState->m_zip64) || (found_zip64_ext_data_in_ldir)) + { + comp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32)); + uncomp_size = MZ_READ_LE64(pSrc + sizeof(mz_uint32) + sizeof(mz_uint64)); + } + else + { + comp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32)); + uncomp_size = MZ_READ_LE32(pSrc + sizeof(mz_uint32) + sizeof(mz_uint32)); + } + + if ((file_crc32 != file_stat.m_crc32) || (comp_size != file_stat.m_comp_size) || (uncomp_size != file_stat.m_uncomp_size)) + { + mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED); + goto handle_failure; + } + } + else + { + if ((local_header_crc32 != file_stat.m_crc32) || (local_header_comp_size != file_stat.m_comp_size) || (local_header_uncomp_size != file_stat.m_uncomp_size)) + { + mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED); + goto handle_failure; + } + } + + mz_zip_array_clear(pZip, &file_data_array); + + if ((flags & MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY) == 0) + { + if (!mz_zip_reader_extract_to_callback(pZip, file_index, mz_zip_compute_crc32_callback, &uncomp_crc32, 0)) + return MZ_FALSE; + + /* 1 more check to be sure, although the extract checks too. */ + if (uncomp_crc32 != file_stat.m_crc32) + { + mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED); + return MZ_FALSE; + } + } + + return MZ_TRUE; + +handle_failure: + mz_zip_array_clear(pZip, &file_data_array); + return MZ_FALSE; +} + +mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags) +{ + mz_zip_internal_state *pState; + mz_uint32 i; + + if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + /* Basic sanity checks */ + if (!pState->m_zip64) + { + if (pZip->m_total_files > MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + + if (pZip->m_archive_size > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + } + else + { + if (pState->m_central_dir.m_size >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + } + + for (i = 0; i < pZip->m_total_files; i++) + { + if (MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG & flags) + { + mz_uint32 found_index; + mz_zip_archive_file_stat stat; + + if (!mz_zip_reader_file_stat(pZip, i, &stat)) + return MZ_FALSE; + + if (!mz_zip_reader_locate_file_v2(pZip, stat.m_filename, NULL, 0, &found_index)) + return MZ_FALSE; + + /* This check can fail if there are duplicate filenames in the archive (which we don't check for when writing - that's up to the user) */ + if (found_index != i) + return mz_zip_set_error(pZip, MZ_ZIP_VALIDATION_FAILED); + } + + if (!mz_zip_validate_file(pZip, i, flags)) + return MZ_FALSE; + } + + return MZ_TRUE; +} + +mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size, mz_uint flags, mz_zip_error *pErr) +{ + mz_bool success = MZ_TRUE; + mz_zip_archive zip; + mz_zip_error actual_err = MZ_ZIP_NO_ERROR; + + if ((!pMem) || (!size)) + { + if (pErr) + *pErr = MZ_ZIP_INVALID_PARAMETER; + return MZ_FALSE; + } + + mz_zip_zero_struct(&zip); + + if (!mz_zip_reader_init_mem(&zip, pMem, size, flags)) + { + if (pErr) + *pErr = zip.m_last_error; + return MZ_FALSE; + } + + if (!mz_zip_validate_archive(&zip, flags)) + { + actual_err = zip.m_last_error; + success = MZ_FALSE; + } + + if (!mz_zip_reader_end_internal(&zip, success)) + { + if (!actual_err) + actual_err = zip.m_last_error; + success = MZ_FALSE; + } + + if (pErr) + *pErr = actual_err; + + return success; +} + +#ifndef MINIZ_NO_STDIO +mz_bool mz_zip_validate_file_archive(const char *pFilename, mz_uint flags, mz_zip_error *pErr) +{ + mz_bool success = MZ_TRUE; + mz_zip_archive zip; + mz_zip_error actual_err = MZ_ZIP_NO_ERROR; + + if (!pFilename) + { + if (pErr) + *pErr = MZ_ZIP_INVALID_PARAMETER; + return MZ_FALSE; + } + + mz_zip_zero_struct(&zip); + + if (!mz_zip_reader_init_file_v2(&zip, pFilename, flags, 0, 0)) + { + if (pErr) + *pErr = zip.m_last_error; + return MZ_FALSE; + } + + if (!mz_zip_validate_archive(&zip, flags)) + { + actual_err = zip.m_last_error; + success = MZ_FALSE; + } + + if (!mz_zip_reader_end_internal(&zip, success)) + { + if (!actual_err) + actual_err = zip.m_last_error; + success = MZ_FALSE; + } + + if (pErr) + *pErr = actual_err; + + return success; +} +#endif /* #ifndef MINIZ_NO_STDIO */ + +/* ------------------- .ZIP archive writing */ + +#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS + +static MZ_FORCEINLINE void mz_write_le16(mz_uint8 *p, mz_uint16 v) +{ + p[0] = (mz_uint8)v; + p[1] = (mz_uint8)(v >> 8); +} +static MZ_FORCEINLINE void mz_write_le32(mz_uint8 *p, mz_uint32 v) +{ + p[0] = (mz_uint8)v; + p[1] = (mz_uint8)(v >> 8); + p[2] = (mz_uint8)(v >> 16); + p[3] = (mz_uint8)(v >> 24); +} +static MZ_FORCEINLINE void mz_write_le64(mz_uint8 *p, mz_uint64 v) +{ + mz_write_le32(p, (mz_uint32)v); + mz_write_le32(p + sizeof(mz_uint32), (mz_uint32)(v >> 32)); +} + +#define MZ_WRITE_LE16(p, v) mz_write_le16((mz_uint8 *)(p), (mz_uint16)(v)) +#define MZ_WRITE_LE32(p, v) mz_write_le32((mz_uint8 *)(p), (mz_uint32)(v)) +#define MZ_WRITE_LE64(p, v) mz_write_le64((mz_uint8 *)(p), (mz_uint64)(v)) + +static size_t mz_zip_heap_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n) +{ + mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; + mz_zip_internal_state *pState = pZip->m_pState; + mz_uint64 new_size = MZ_MAX(file_ofs + n, pState->m_mem_size); + + if (!n) + return 0; + + /* An allocation this big is likely to just fail on 32-bit systems, so don't even go there. */ + if ((sizeof(size_t) == sizeof(mz_uint32)) && (new_size > 0x7FFFFFFF)) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE); + return 0; + } + + if (new_size > pState->m_mem_capacity) + { + void *pNew_block; + size_t new_capacity = MZ_MAX(64, pState->m_mem_capacity); + + while (new_capacity < new_size) + new_capacity *= 2; + + if (NULL == (pNew_block = pZip->m_pRealloc(pZip->m_pAlloc_opaque, pState->m_pMem, 1, new_capacity))) + { + mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + return 0; + } + + pState->m_pMem = pNew_block; + pState->m_mem_capacity = new_capacity; + } + memcpy((mz_uint8 *)pState->m_pMem + file_ofs, pBuf, n); + pState->m_mem_size = (size_t)new_size; + return n; +} + +static mz_bool mz_zip_writer_end_internal(mz_zip_archive *pZip, mz_bool set_last_error) +{ + mz_zip_internal_state *pState; + mz_bool status = MZ_TRUE; + + if ((!pZip) || (!pZip->m_pState) || (!pZip->m_pAlloc) || (!pZip->m_pFree) || ((pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) && (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED))) + { + if (set_last_error) + mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + return MZ_FALSE; + } + + pState = pZip->m_pState; + pZip->m_pState = NULL; + mz_zip_array_clear(pZip, &pState->m_central_dir); + mz_zip_array_clear(pZip, &pState->m_central_dir_offsets); + mz_zip_array_clear(pZip, &pState->m_sorted_central_dir_offsets); + +#ifndef MINIZ_NO_STDIO + if (pState->m_pFile) + { + if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) + { + if (MZ_FCLOSE(pState->m_pFile) == EOF) + { + if (set_last_error) + mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED); + status = MZ_FALSE; + } + } + + pState->m_pFile = NULL; + } +#endif /* #ifndef MINIZ_NO_STDIO */ + + if ((pZip->m_pWrite == mz_zip_heap_write_func) && (pState->m_pMem)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pState->m_pMem); + pState->m_pMem = NULL; + } + + pZip->m_pFree(pZip->m_pAlloc_opaque, pState); + pZip->m_zip_mode = MZ_ZIP_MODE_INVALID; + return status; +} + +mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags) +{ + mz_bool zip64 = (flags & MZ_ZIP_FLAG_WRITE_ZIP64) != 0; + + if ((!pZip) || (pZip->m_pState) || (!pZip->m_pWrite) || (pZip->m_zip_mode != MZ_ZIP_MODE_INVALID)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) + { + if (!pZip->m_pRead) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + } + + if (pZip->m_file_offset_alignment) + { + /* Ensure user specified file offset alignment is a power of 2. */ + if (pZip->m_file_offset_alignment & (pZip->m_file_offset_alignment - 1)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + } + + if (!pZip->m_pAlloc) + pZip->m_pAlloc = miniz_def_alloc_func; + if (!pZip->m_pFree) + pZip->m_pFree = miniz_def_free_func; + if (!pZip->m_pRealloc) + pZip->m_pRealloc = miniz_def_realloc_func; + + pZip->m_archive_size = existing_size; + pZip->m_central_directory_file_ofs = 0; + pZip->m_total_files = 0; + + if (NULL == (pZip->m_pState = (mz_zip_internal_state *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(mz_zip_internal_state)))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + memset(pZip->m_pState, 0, sizeof(mz_zip_internal_state)); + + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir, sizeof(mz_uint8)); + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_central_dir_offsets, sizeof(mz_uint32)); + MZ_ZIP_ARRAY_SET_ELEMENT_SIZE(&pZip->m_pState->m_sorted_central_dir_offsets, sizeof(mz_uint32)); + + pZip->m_pState->m_zip64 = zip64; + pZip->m_pState->m_zip64_has_extended_info_fields = zip64; + + pZip->m_zip_type = MZ_ZIP_TYPE_USER; + pZip->m_zip_mode = MZ_ZIP_MODE_WRITING; + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size) +{ + return mz_zip_writer_init_v2(pZip, existing_size, 0); +} + +mz_bool mz_zip_writer_init_heap_v2(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size, mz_uint flags) +{ + pZip->m_pWrite = mz_zip_heap_write_func; + pZip->m_pNeeds_keepalive = NULL; + + if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) + pZip->m_pRead = mz_zip_mem_read_func; + + pZip->m_pIO_opaque = pZip; + + if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags)) + return MZ_FALSE; + + pZip->m_zip_type = MZ_ZIP_TYPE_HEAP; + + if (0 != (initial_allocation_size = MZ_MAX(initial_allocation_size, size_to_reserve_at_beginning))) + { + if (NULL == (pZip->m_pState->m_pMem = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, initial_allocation_size))) + { + mz_zip_writer_end_internal(pZip, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + pZip->m_pState->m_mem_capacity = initial_allocation_size; + } + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size) +{ + return mz_zip_writer_init_heap_v2(pZip, size_to_reserve_at_beginning, initial_allocation_size, 0); +} + +#ifndef MINIZ_NO_STDIO +static size_t mz_zip_file_write_func(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n) +{ + mz_zip_archive *pZip = (mz_zip_archive *)pOpaque; + mz_int64 cur_ofs = MZ_FTELL64(pZip->m_pState->m_pFile); + + file_ofs += pZip->m_pState->m_file_archive_start_ofs; + + if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pZip->m_pState->m_pFile, (mz_int64)file_ofs, SEEK_SET)))) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_SEEK_FAILED); + return 0; + } + + return MZ_FWRITE(pBuf, 1, n, pZip->m_pState->m_pFile); +} + +mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning) +{ + return mz_zip_writer_init_file_v2(pZip, pFilename, size_to_reserve_at_beginning, 0); +} + +mz_bool mz_zip_writer_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags) +{ + MZ_FILE *pFile; + + pZip->m_pWrite = mz_zip_file_write_func; + pZip->m_pNeeds_keepalive = NULL; + + if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) + pZip->m_pRead = mz_zip_file_read_func; + + pZip->m_pIO_opaque = pZip; + + if (!mz_zip_writer_init_v2(pZip, size_to_reserve_at_beginning, flags)) + return MZ_FALSE; + + if (NULL == (pFile = MZ_FOPEN(pFilename, (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) ? "w+b" : "wb"))) + { + mz_zip_writer_end(pZip); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + } + + pZip->m_pState->m_pFile = pFile; + pZip->m_zip_type = MZ_ZIP_TYPE_FILE; + + if (size_to_reserve_at_beginning) + { + mz_uint64 cur_ofs = 0; + char buf[4096]; + + MZ_CLEAR_ARR(buf); + + do + { + size_t n = (size_t)MZ_MIN(sizeof(buf), size_to_reserve_at_beginning); + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_ofs, buf, n) != n) + { + mz_zip_writer_end(pZip); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + cur_ofs += n; + size_to_reserve_at_beginning -= n; + } while (size_to_reserve_at_beginning); + } + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint flags) +{ + pZip->m_pWrite = mz_zip_file_write_func; + pZip->m_pNeeds_keepalive = NULL; + + if (flags & MZ_ZIP_FLAG_WRITE_ALLOW_READING) + pZip->m_pRead = mz_zip_file_read_func; + + pZip->m_pIO_opaque = pZip; + + if (!mz_zip_writer_init_v2(pZip, 0, flags)) + return MZ_FALSE; + + pZip->m_pState->m_pFile = pFile; + pZip->m_pState->m_file_archive_start_ofs = MZ_FTELL64(pZip->m_pState->m_pFile); + pZip->m_zip_type = MZ_ZIP_TYPE_CFILE; + + return MZ_TRUE; +} +#endif /* #ifndef MINIZ_NO_STDIO */ + +mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags) +{ + mz_zip_internal_state *pState; + + if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_READING)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (flags & MZ_ZIP_FLAG_WRITE_ZIP64) + { + /* We don't support converting a non-zip64 file to zip64 - this seems like more trouble than it's worth. (What about the existing 32-bit data descriptors that could follow the compressed data?) */ + if (!pZip->m_pState->m_zip64) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + } + + /* No sense in trying to write to an archive that's already at the support max size */ + if (pZip->m_pState->m_zip64) + { + if (pZip->m_total_files == MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + else + { + if (pZip->m_total_files == MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + + if ((pZip->m_archive_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + MZ_ZIP_LOCAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE); + } + + pState = pZip->m_pState; + + if (pState->m_pFile) + { +#ifdef MINIZ_NO_STDIO + (void)pFilename; + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); +#else + if (pZip->m_pIO_opaque != pZip) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (pZip->m_zip_type == MZ_ZIP_TYPE_FILE) + { + if (!pFilename) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + /* Archive is being read from stdio and was originally opened only for reading. Try to reopen as writable. */ + if (NULL == (pState->m_pFile = MZ_FREOPEN(pFilename, "r+b", pState->m_pFile))) + { + /* The mz_zip_archive is now in a bogus state because pState->m_pFile is NULL, so just close it. */ + mz_zip_reader_end_internal(pZip, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + } + } + + pZip->m_pWrite = mz_zip_file_write_func; + pZip->m_pNeeds_keepalive = NULL; +#endif /* #ifdef MINIZ_NO_STDIO */ + } + else if (pState->m_pMem) + { + /* Archive lives in a memory block. Assume it's from the heap that we can resize using the realloc callback. */ + if (pZip->m_pIO_opaque != pZip) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState->m_mem_capacity = pState->m_mem_size; + pZip->m_pWrite = mz_zip_heap_write_func; + pZip->m_pNeeds_keepalive = NULL; + } + /* Archive is being read via a user provided read function - make sure the user has specified a write function too. */ + else if (!pZip->m_pWrite) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + /* Start writing new files at the archive's current central directory location. */ + /* TODO: We could add a flag that lets the user start writing immediately AFTER the existing central dir - this would be safer. */ + pZip->m_archive_size = pZip->m_central_directory_file_ofs; + pZip->m_central_directory_file_ofs = 0; + + /* Clear the sorted central dir offsets, they aren't useful or maintained now. */ + /* Even though we're now in write mode, files can still be extracted and verified, but file locates will be slow. */ + /* TODO: We could easily maintain the sorted central directory offsets. */ + mz_zip_array_clear(pZip, &pZip->m_pState->m_sorted_central_dir_offsets); + + pZip->m_zip_mode = MZ_ZIP_MODE_WRITING; + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename) +{ + return mz_zip_writer_init_from_reader_v2(pZip, pFilename, 0); +} + +/* TODO: pArchive_name is a terrible name here! */ +mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags) +{ + return mz_zip_writer_add_mem_ex(pZip, pArchive_name, pBuf, buf_size, NULL, 0, level_and_flags, 0, 0); +} + +typedef struct +{ + mz_zip_archive *m_pZip; + mz_uint64 m_cur_archive_file_ofs; + mz_uint64 m_comp_size; +} mz_zip_writer_add_state; + +static mz_bool mz_zip_writer_add_put_buf_callback(const void *pBuf, int len, void *pUser) +{ + mz_zip_writer_add_state *pState = (mz_zip_writer_add_state *)pUser; + if ((int)pState->m_pZip->m_pWrite(pState->m_pZip->m_pIO_opaque, pState->m_cur_archive_file_ofs, pBuf, len) != len) + return MZ_FALSE; + + pState->m_cur_archive_file_ofs += len; + pState->m_comp_size += len; + return MZ_TRUE; +} + +#define MZ_ZIP64_MAX_LOCAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 2) +#define MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE (sizeof(mz_uint16) * 2 + sizeof(mz_uint64) * 3) +static mz_uint32 mz_zip_writer_create_zip64_extra_data(mz_uint8 *pBuf, mz_uint64 *pUncomp_size, mz_uint64 *pComp_size, mz_uint64 *pLocal_header_ofs) +{ + mz_uint8 *pDst = pBuf; + mz_uint32 field_size = 0; + + MZ_WRITE_LE16(pDst + 0, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID); + MZ_WRITE_LE16(pDst + 2, 0); + pDst += sizeof(mz_uint16) * 2; + + if (pUncomp_size) + { + MZ_WRITE_LE64(pDst, *pUncomp_size); + pDst += sizeof(mz_uint64); + field_size += sizeof(mz_uint64); + } + + if (pComp_size) + { + MZ_WRITE_LE64(pDst, *pComp_size); + pDst += sizeof(mz_uint64); + field_size += sizeof(mz_uint64); + } + + if (pLocal_header_ofs) + { + MZ_WRITE_LE64(pDst, *pLocal_header_ofs); + pDst += sizeof(mz_uint64); + field_size += sizeof(mz_uint64); + } + + MZ_WRITE_LE16(pBuf + 2, field_size); + + return (mz_uint32)(pDst - pBuf); +} + +static mz_bool mz_zip_writer_create_local_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst, mz_uint16 filename_size, mz_uint16 extra_size, mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date) +{ + (void)pZip; + memset(pDst, 0, MZ_ZIP_LOCAL_DIR_HEADER_SIZE); + MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_SIG_OFS, MZ_ZIP_LOCAL_DIR_HEADER_SIG); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_VERSION_NEEDED_OFS, method ? 20 : 0); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_BIT_FLAG_OFS, bit_flags); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_METHOD_OFS, method); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_TIME_OFS, dos_time); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILE_DATE_OFS, dos_date); + MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_CRC32_OFS, uncomp_crc32); + MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS, MZ_MIN(comp_size, MZ_UINT32_MAX)); + MZ_WRITE_LE32(pDst + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS, MZ_MIN(uncomp_size, MZ_UINT32_MAX)); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_FILENAME_LEN_OFS, filename_size); + MZ_WRITE_LE16(pDst + MZ_ZIP_LDH_EXTRA_LEN_OFS, extra_size); + return MZ_TRUE; +} + +static mz_bool mz_zip_writer_create_central_dir_header(mz_zip_archive *pZip, mz_uint8 *pDst, + mz_uint16 filename_size, mz_uint16 extra_size, mz_uint16 comment_size, + mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, + mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, + mz_uint64 local_header_ofs, mz_uint32 ext_attributes) +{ + (void)pZip; + memset(pDst, 0, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_SIG_OFS, MZ_ZIP_CENTRAL_DIR_HEADER_SIG); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_VERSION_NEEDED_OFS, method ? 20 : 0); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_BIT_FLAG_OFS, bit_flags); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_METHOD_OFS, method); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_TIME_OFS, dos_time); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILE_DATE_OFS, dos_date); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_CRC32_OFS, uncomp_crc32); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_MIN(comp_size, MZ_UINT32_MAX)); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_MIN(uncomp_size, MZ_UINT32_MAX)); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_FILENAME_LEN_OFS, filename_size); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_EXTRA_LEN_OFS, extra_size); + MZ_WRITE_LE16(pDst + MZ_ZIP_CDH_COMMENT_LEN_OFS, comment_size); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_EXTERNAL_ATTR_OFS, ext_attributes); + MZ_WRITE_LE32(pDst + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_MIN(local_header_ofs, MZ_UINT32_MAX)); + return MZ_TRUE; +} + +static mz_bool mz_zip_writer_add_to_central_dir(mz_zip_archive *pZip, const char *pFilename, mz_uint16 filename_size, + const void *pExtra, mz_uint16 extra_size, const void *pComment, mz_uint16 comment_size, + mz_uint64 uncomp_size, mz_uint64 comp_size, mz_uint32 uncomp_crc32, + mz_uint16 method, mz_uint16 bit_flags, mz_uint16 dos_time, mz_uint16 dos_date, + mz_uint64 local_header_ofs, mz_uint32 ext_attributes, + const char *user_extra_data, mz_uint user_extra_data_len) +{ + mz_zip_internal_state *pState = pZip->m_pState; + mz_uint32 central_dir_ofs = (mz_uint32)pState->m_central_dir.m_size; + size_t orig_central_dir_size = pState->m_central_dir.m_size; + mz_uint8 central_dir_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE]; + + if (!pZip->m_pState->m_zip64) + { + if (local_header_ofs > 0xFFFFFFFF) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_TOO_LARGE); + } + + /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */ + if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + filename_size + extra_size + user_extra_data_len + comment_size) >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + + if (!mz_zip_writer_create_central_dir_header(pZip, central_dir_header, filename_size, (mz_uint16)(extra_size + user_extra_data_len), comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_header_ofs, ext_attributes)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if ((!mz_zip_array_push_back(pZip, &pState->m_central_dir, central_dir_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) || + (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pFilename, filename_size)) || + (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pExtra, extra_size)) || + (!mz_zip_array_push_back(pZip, &pState->m_central_dir, user_extra_data, user_extra_data_len)) || + (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pComment, comment_size)) || + (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, ¢ral_dir_ofs, 1))) + { + /* Try to resize the central directory array back into its original state. */ + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + return MZ_TRUE; +} + +static mz_bool mz_zip_writer_validate_archive_name(const char *pArchive_name) +{ + /* Basic ZIP archive filename validity checks: Valid filenames cannot start with a forward slash, cannot contain a drive letter, and cannot use DOS-style backward slashes. */ + if (*pArchive_name == '/') + return MZ_FALSE; + + /* Making sure the name does not contain drive letters or DOS style backward slashes is the responsibility of the program using miniz*/ + + return MZ_TRUE; +} + +static mz_uint mz_zip_writer_compute_padding_needed_for_file_alignment(mz_zip_archive *pZip) +{ + mz_uint32 n; + if (!pZip->m_file_offset_alignment) + return 0; + n = (mz_uint32)(pZip->m_archive_size & (pZip->m_file_offset_alignment - 1)); + return (mz_uint)((pZip->m_file_offset_alignment - n) & (pZip->m_file_offset_alignment - 1)); +} + +static mz_bool mz_zip_writer_write_zeros(mz_zip_archive *pZip, mz_uint64 cur_file_ofs, mz_uint32 n) +{ + char buf[4096]; + memset(buf, 0, MZ_MIN(sizeof(buf), n)); + while (n) + { + mz_uint32 s = MZ_MIN(sizeof(buf), n); + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_file_ofs, buf, s) != s) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_file_ofs += s; + n -= s; + } + return MZ_TRUE; +} + +mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, + mz_uint64 uncomp_size, mz_uint32 uncomp_crc32) +{ + return mz_zip_writer_add_mem_ex_v2(pZip, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, uncomp_size, uncomp_crc32, NULL, NULL, 0, NULL, 0); +} + +mz_bool mz_zip_writer_add_mem_ex_v2(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, + mz_uint level_and_flags, mz_uint64 uncomp_size, mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified, + const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len) +{ + mz_uint16 method = 0, dos_time = 0, dos_date = 0; + mz_uint level, ext_attributes = 0, num_alignment_padding_bytes; + mz_uint64 local_dir_header_ofs = pZip->m_archive_size, cur_archive_file_ofs = pZip->m_archive_size, comp_size = 0; + size_t archive_name_size; + mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE]; + tdefl_compressor *pComp = NULL; + mz_bool store_data_uncompressed; + mz_zip_internal_state *pState; + mz_uint8 *pExtra_data = NULL; + mz_uint32 extra_size = 0; + mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE]; + mz_uint16 bit_flags = 0; + + if ((int)level_and_flags < 0) + level_and_flags = MZ_DEFAULT_LEVEL; + + if (uncomp_size || (buf_size && !(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA))) + bit_flags |= MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR; + + if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME)) + bit_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8; + + level = level_and_flags & 0xF; + store_data_uncompressed = ((!level) || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)); + + if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || ((buf_size) && (!pBuf)) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + if (pState->m_zip64) + { + if (pZip->m_total_files == MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + else + { + if (pZip->m_total_files == MZ_UINT16_MAX) + { + pState->m_zip64 = MZ_TRUE; + /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */ + } + if (((mz_uint64)buf_size > 0xFFFFFFFF) || (uncomp_size > 0xFFFFFFFF)) + { + pState->m_zip64 = MZ_TRUE; + /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */ + } + } + + if ((!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) && (uncomp_size)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!mz_zip_writer_validate_archive_name(pArchive_name)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME); + +#ifndef MINIZ_NO_TIME + if (last_modified != NULL) + { + mz_zip_time_t_to_dos_time(*last_modified, &dos_time, &dos_date); + } + else + { + MZ_TIME_T cur_time; + time(&cur_time); + mz_zip_time_t_to_dos_time(cur_time, &dos_time, &dos_date); + } +#endif /* #ifndef MINIZ_NO_TIME */ + + if (!(level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) + { + uncomp_crc32 = (mz_uint32)mz_crc32(MZ_CRC32_INIT, (const mz_uint8 *)pBuf, buf_size); + uncomp_size = buf_size; + if (uncomp_size <= 3) + { + level = 0; + store_data_uncompressed = MZ_TRUE; + } + } + + archive_name_size = strlen(pArchive_name); + if (archive_name_size > MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME); + + num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); + + /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */ + if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + + if (!pState->m_zip64) + { + /* Bail early if the archive would obviously become too large */ + if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size + + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + user_extra_data_len + + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + user_extra_data_central_len + + MZ_ZIP_DATA_DESCRIPTER_SIZE32) > 0xFFFFFFFF) + { + pState->m_zip64 = MZ_TRUE; + /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */ + } + } + + if ((archive_name_size) && (pArchive_name[archive_name_size - 1] == '/')) + { + /* Set DOS Subdirectory attribute bit. */ + ext_attributes |= MZ_ZIP_DOS_DIR_ATTRIBUTE_BITFLAG; + + /* Subdirectories cannot contain data. */ + if ((buf_size) || (uncomp_size)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + } + + /* Try to do any allocations before writing to the archive, so if an allocation fails the file remains unmodified. (A good idea if we're doing an in-place modification.) */ + if ((!mz_zip_array_ensure_room(pZip, &pState->m_central_dir, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + comment_size + (pState->m_zip64 ? MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE : 0))) || (!mz_zip_array_ensure_room(pZip, &pState->m_central_dir_offsets, 1))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + if ((!store_data_uncompressed) && (buf_size)) + { + if (NULL == (pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor)))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + return MZ_FALSE; + } + + local_dir_header_ofs += num_alignment_padding_bytes; + if (pZip->m_file_offset_alignment) + { + MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); + } + cur_archive_file_ofs += num_alignment_padding_bytes; + + MZ_CLEAR_ARR(local_dir_header); + + if (!store_data_uncompressed || (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA)) + { + method = MZ_DEFLATED; + } + + if (pState->m_zip64) + { + if (uncomp_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX) + { + pExtra_data = extra_data; + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL, + (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + } + + if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, bit_flags, dos_time, dos_date)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += sizeof(local_dir_header); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + cur_archive_file_ofs += archive_name_size; + + if (pExtra_data != NULL) + { + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += extra_size; + } + } + else + { + if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX)) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, bit_flags, dos_time, dos_date)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, local_dir_header_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += sizeof(local_dir_header); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + cur_archive_file_ofs += archive_name_size; + } + + if (user_extra_data_len > 0) + { + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += user_extra_data_len; + } + + if (store_data_uncompressed) + { + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pBuf, buf_size) != buf_size) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_archive_file_ofs += buf_size; + comp_size = buf_size; + } + else if (buf_size) + { + mz_zip_writer_add_state state; + + state.m_pZip = pZip; + state.m_cur_archive_file_ofs = cur_archive_file_ofs; + state.m_comp_size = 0; + + if ((tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY) || + (tdefl_compress_buffer(pComp, pBuf, buf_size, TDEFL_FINISH) != TDEFL_STATUS_DONE)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + return mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED); + } + + comp_size = state.m_comp_size; + cur_archive_file_ofs = state.m_cur_archive_file_ofs; + } + + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + pComp = NULL; + + if (uncomp_size) + { + mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64]; + mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32; + + MZ_ASSERT(bit_flags & MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR); + + MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID); + MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32); + if (pExtra_data == NULL) + { + if (comp_size > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + + MZ_WRITE_LE32(local_dir_footer + 8, comp_size); + MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size); + } + else + { + MZ_WRITE_LE64(local_dir_footer + 8, comp_size); + MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size); + local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64; + } + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size) + return MZ_FALSE; + + cur_archive_file_ofs += local_dir_footer_size; + } + + if (pExtra_data != NULL) + { + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL, + (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + } + + if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment, + comment_size, uncomp_size, comp_size, uncomp_crc32, method, bit_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes, + user_extra_data_central, user_extra_data_central_len)) + return MZ_FALSE; + + pZip->m_total_files++; + pZip->m_archive_size = cur_archive_file_ofs; + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_add_read_buf_callback(mz_zip_archive *pZip, const char *pArchive_name, mz_file_read_func read_callback, void* callback_opaque, mz_uint64 max_size, const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, + const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len) +{ + mz_uint16 gen_flags; + mz_uint uncomp_crc32 = MZ_CRC32_INIT, level, num_alignment_padding_bytes; + mz_uint16 method = 0, dos_time = 0, dos_date = 0, ext_attributes = 0; + mz_uint64 local_dir_header_ofs, cur_archive_file_ofs = pZip->m_archive_size, uncomp_size = 0, comp_size = 0; + size_t archive_name_size; + mz_uint8 local_dir_header[MZ_ZIP_LOCAL_DIR_HEADER_SIZE]; + mz_uint8 *pExtra_data = NULL; + mz_uint32 extra_size = 0; + mz_uint8 extra_data[MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE]; + mz_zip_internal_state *pState; + mz_uint64 file_ofs = 0, cur_archive_header_file_ofs; + + if ((int)level_and_flags < 0) + level_and_flags = MZ_DEFAULT_LEVEL; + level = level_and_flags & 0xF; + + gen_flags = (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE) ? 0 : MZ_ZIP_LDH_BIT_FLAG_HAS_LOCATOR; + + if (!(level_and_flags & MZ_ZIP_FLAG_ASCII_FILENAME)) + gen_flags |= MZ_ZIP_GENERAL_PURPOSE_BIT_FLAG_UTF8; + + /* Sanity checks */ + if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pArchive_name) || ((comment_size) && (!pComment)) || (level > MZ_UBER_COMPRESSION)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + if ((!pState->m_zip64) && (max_size > MZ_UINT32_MAX)) + { + /* Source file is too large for non-zip64 */ + /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */ + pState->m_zip64 = MZ_TRUE; + } + + /* We could support this, but why? */ + if (level_and_flags & MZ_ZIP_FLAG_COMPRESSED_DATA) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!mz_zip_writer_validate_archive_name(pArchive_name)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME); + + if (pState->m_zip64) + { + if (pZip->m_total_files == MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + else + { + if (pZip->m_total_files == MZ_UINT16_MAX) + { + pState->m_zip64 = MZ_TRUE; + /*return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); */ + } + } + + archive_name_size = strlen(pArchive_name); + if (archive_name_size > MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_FILENAME); + + num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); + + /* miniz doesn't support central dirs >= MZ_UINT32_MAX bytes yet */ + if (((mz_uint64)pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP64_MAX_CENTRAL_EXTRA_FIELD_SIZE + comment_size) >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + + if (!pState->m_zip64) + { + /* Bail early if the archive would obviously become too large */ + if ((pZip->m_archive_size + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + archive_name_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + + archive_name_size + comment_size + user_extra_data_len + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 1024 + + MZ_ZIP_DATA_DESCRIPTER_SIZE32 + user_extra_data_central_len) > 0xFFFFFFFF) + { + pState->m_zip64 = MZ_TRUE; + /*return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); */ + } + } + +#ifndef MINIZ_NO_TIME + if (pFile_time) + { + mz_zip_time_t_to_dos_time(*pFile_time, &dos_time, &dos_date); + } +#endif + + if (max_size <= 3) + level = 0; + + if (!mz_zip_writer_write_zeros(pZip, cur_archive_file_ofs, num_alignment_padding_bytes)) + { + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_archive_file_ofs += num_alignment_padding_bytes; + local_dir_header_ofs = cur_archive_file_ofs; + + if (pZip->m_file_offset_alignment) + { + MZ_ASSERT((cur_archive_file_ofs & (pZip->m_file_offset_alignment - 1)) == 0); + } + + if (max_size && level) + { + method = MZ_DEFLATED; + } + + MZ_CLEAR_ARR(local_dir_header); + if (pState->m_zip64) + { + if (max_size >= MZ_UINT32_MAX || local_dir_header_ofs >= MZ_UINT32_MAX) + { + pExtra_data = extra_data; + if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE) + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL, + (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL, + (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + else + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, NULL, + NULL, + (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + } + + if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), 0, 0, 0, method, gen_flags, dos_time, dos_date)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += sizeof(local_dir_header); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size) + { + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_archive_file_ofs += archive_name_size; + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, extra_data, extra_size) != extra_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += extra_size; + } + else + { + if ((comp_size > MZ_UINT32_MAX) || (cur_archive_file_ofs > MZ_UINT32_MAX)) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, (mz_uint16)archive_name_size, (mz_uint16)user_extra_data_len, 0, 0, 0, method, gen_flags, dos_time, dos_date)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += sizeof(local_dir_header); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pArchive_name, archive_name_size) != archive_name_size) + { + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_archive_file_ofs += archive_name_size; + } + + if (user_extra_data_len > 0) + { + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, user_extra_data, user_extra_data_len) != user_extra_data_len) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_file_ofs += user_extra_data_len; + } + + if (max_size) + { + void *pRead_buf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, MZ_ZIP_MAX_IO_BUF_SIZE); + if (!pRead_buf) + { + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (!level) + { + while (1) + { + size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE); + if (n == 0) + break; + + if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, pRead_buf, n) != n) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + file_ofs += n; + uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n); + cur_archive_file_ofs += n; + } + uncomp_size = file_ofs; + comp_size = uncomp_size; + } + else + { + mz_bool result = MZ_FALSE; + mz_zip_writer_add_state state; + tdefl_compressor *pComp = (tdefl_compressor *)pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, sizeof(tdefl_compressor)); + if (!pComp) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + state.m_pZip = pZip; + state.m_cur_archive_file_ofs = cur_archive_file_ofs; + state.m_comp_size = 0; + + if (tdefl_init(pComp, mz_zip_writer_add_put_buf_callback, &state, tdefl_create_comp_flags_from_zip_params(level, -15, MZ_DEFAULT_STRATEGY)) != TDEFL_STATUS_OKAY) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + } + + for (;;) + { + tdefl_status status; + tdefl_flush flush = TDEFL_NO_FLUSH; + + size_t n = read_callback(callback_opaque, file_ofs, pRead_buf, MZ_ZIP_MAX_IO_BUF_SIZE); + if ((n > MZ_ZIP_MAX_IO_BUF_SIZE) || (file_ofs + n > max_size)) + { + mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + break; + } + + file_ofs += n; + uncomp_crc32 = (mz_uint32)mz_crc32(uncomp_crc32, (const mz_uint8 *)pRead_buf, n); + + if (pZip->m_pNeeds_keepalive != NULL && pZip->m_pNeeds_keepalive(pZip->m_pIO_opaque)) + flush = TDEFL_FULL_FLUSH; + + if (n == 0) + flush = TDEFL_FINISH; + + status = tdefl_compress_buffer(pComp, pRead_buf, n, flush); + if (status == TDEFL_STATUS_DONE) + { + result = MZ_TRUE; + break; + } + else if (status != TDEFL_STATUS_OKAY) + { + mz_zip_set_error(pZip, MZ_ZIP_COMPRESSION_FAILED); + break; + } + } + + pZip->m_pFree(pZip->m_pAlloc_opaque, pComp); + + if (!result) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + return MZ_FALSE; + } + + uncomp_size = file_ofs; + comp_size = state.m_comp_size; + cur_archive_file_ofs = state.m_cur_archive_file_ofs; + } + + pZip->m_pFree(pZip->m_pAlloc_opaque, pRead_buf); + } + + if (!(level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE)) + { + mz_uint8 local_dir_footer[MZ_ZIP_DATA_DESCRIPTER_SIZE64]; + mz_uint32 local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE32; + + MZ_WRITE_LE32(local_dir_footer + 0, MZ_ZIP_DATA_DESCRIPTOR_ID); + MZ_WRITE_LE32(local_dir_footer + 4, uncomp_crc32); + if (pExtra_data == NULL) + { + if (comp_size > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + + MZ_WRITE_LE32(local_dir_footer + 8, comp_size); + MZ_WRITE_LE32(local_dir_footer + 12, uncomp_size); + } + else + { + MZ_WRITE_LE64(local_dir_footer + 8, comp_size); + MZ_WRITE_LE64(local_dir_footer + 16, uncomp_size); + local_dir_footer_size = MZ_ZIP_DATA_DESCRIPTER_SIZE64; + } + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_file_ofs, local_dir_footer, local_dir_footer_size) != local_dir_footer_size) + return MZ_FALSE; + + cur_archive_file_ofs += local_dir_footer_size; + } + + if (level_and_flags & MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE) + { + if (pExtra_data != NULL) + { + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (max_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL, + (max_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + } + + if (!mz_zip_writer_create_local_dir_header(pZip, local_dir_header, + (mz_uint16)archive_name_size, (mz_uint16)(extra_size + user_extra_data_len), + (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : uncomp_size, + (max_size >= MZ_UINT32_MAX) ? MZ_UINT32_MAX : comp_size, + uncomp_crc32, method, gen_flags, dos_time, dos_date)) + return mz_zip_set_error(pZip, MZ_ZIP_INTERNAL_ERROR); + + cur_archive_header_file_ofs = local_dir_header_ofs; + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, local_dir_header, sizeof(local_dir_header)) != sizeof(local_dir_header)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + if (pExtra_data != NULL) + { + cur_archive_header_file_ofs += sizeof(local_dir_header); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, pArchive_name, archive_name_size) != archive_name_size) + { + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_archive_header_file_ofs += archive_name_size; + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_archive_header_file_ofs, extra_data, extra_size) != extra_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_archive_header_file_ofs += extra_size; + } + } + + if (pExtra_data != NULL) + { + extra_size = mz_zip_writer_create_zip64_extra_data(extra_data, (uncomp_size >= MZ_UINT32_MAX) ? &uncomp_size : NULL, + (uncomp_size >= MZ_UINT32_MAX) ? &comp_size : NULL, (local_dir_header_ofs >= MZ_UINT32_MAX) ? &local_dir_header_ofs : NULL); + } + + if (!mz_zip_writer_add_to_central_dir(pZip, pArchive_name, (mz_uint16)archive_name_size, pExtra_data, (mz_uint16)extra_size, pComment, comment_size, + uncomp_size, comp_size, uncomp_crc32, method, gen_flags, dos_time, dos_date, local_dir_header_ofs, ext_attributes, + user_extra_data_central, user_extra_data_central_len)) + return MZ_FALSE; + + pZip->m_total_files++; + pZip->m_archive_size = cur_archive_file_ofs; + + return MZ_TRUE; +} + +#ifndef MINIZ_NO_STDIO + +static size_t mz_file_read_func_stdio(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n) +{ + MZ_FILE *pSrc_file = (MZ_FILE *)pOpaque; + mz_int64 cur_ofs = MZ_FTELL64(pSrc_file); + + if (((mz_int64)file_ofs < 0) || (((cur_ofs != (mz_int64)file_ofs)) && (MZ_FSEEK64(pSrc_file, (mz_int64)file_ofs, SEEK_SET)))) + return 0; + + return MZ_FREAD(pBuf, 1, n, pSrc_file); +} + +mz_bool mz_zip_writer_add_cfile(mz_zip_archive *pZip, const char *pArchive_name, MZ_FILE *pSrc_file, mz_uint64 max_size, const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, + const char *user_extra_data, mz_uint user_extra_data_len, const char *user_extra_data_central, mz_uint user_extra_data_central_len) +{ + return mz_zip_writer_add_read_buf_callback(pZip, pArchive_name, mz_file_read_func_stdio, pSrc_file, max_size, pFile_time, pComment, comment_size, level_and_flags, + user_extra_data, user_extra_data_len, user_extra_data_central, user_extra_data_central_len); +} + +mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags) +{ + MZ_FILE *pSrc_file = NULL; + mz_uint64 uncomp_size = 0; + MZ_TIME_T file_modified_time; + MZ_TIME_T *pFile_time = NULL; + mz_bool status; + + memset(&file_modified_time, 0, sizeof(file_modified_time)); + +#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_STDIO) + pFile_time = &file_modified_time; + if (!mz_zip_get_file_modified_time(pSrc_filename, &file_modified_time)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_STAT_FAILED); +#endif + + pSrc_file = MZ_FOPEN(pSrc_filename, "rb"); + if (!pSrc_file) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_OPEN_FAILED); + + MZ_FSEEK64(pSrc_file, 0, SEEK_END); + uncomp_size = MZ_FTELL64(pSrc_file); + MZ_FSEEK64(pSrc_file, 0, SEEK_SET); + + status = mz_zip_writer_add_cfile(pZip, pArchive_name, pSrc_file, uncomp_size, pFile_time, pComment, comment_size, level_and_flags, NULL, 0, NULL, 0); + + MZ_FCLOSE(pSrc_file); + + return status; +} +#endif /* #ifndef MINIZ_NO_STDIO */ + +static mz_bool mz_zip_writer_update_zip64_extension_block(mz_zip_array *pNew_ext, mz_zip_archive *pZip, const mz_uint8 *pExt, mz_uint32 ext_len, mz_uint64 *pComp_size, mz_uint64 *pUncomp_size, mz_uint64 *pLocal_header_ofs, mz_uint32 *pDisk_start) +{ + /* + 64 should be enough for any new zip64 data */ + if (!mz_zip_array_reserve(pZip, pNew_ext, ext_len + 64, MZ_FALSE)) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + mz_zip_array_resize(pZip, pNew_ext, 0, MZ_FALSE); + + if ((pUncomp_size) || (pComp_size) || (pLocal_header_ofs) || (pDisk_start)) + { + mz_uint8 new_ext_block[64]; + mz_uint8 *pDst = new_ext_block; + mz_write_le16(pDst, MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID); + mz_write_le16(pDst + sizeof(mz_uint16), 0); + pDst += sizeof(mz_uint16) * 2; + + if (pUncomp_size) + { + mz_write_le64(pDst, *pUncomp_size); + pDst += sizeof(mz_uint64); + } + + if (pComp_size) + { + mz_write_le64(pDst, *pComp_size); + pDst += sizeof(mz_uint64); + } + + if (pLocal_header_ofs) + { + mz_write_le64(pDst, *pLocal_header_ofs); + pDst += sizeof(mz_uint64); + } + + if (pDisk_start) + { + mz_write_le32(pDst, *pDisk_start); + pDst += sizeof(mz_uint32); + } + + mz_write_le16(new_ext_block + sizeof(mz_uint16), (mz_uint16)((pDst - new_ext_block) - sizeof(mz_uint16) * 2)); + + if (!mz_zip_array_push_back(pZip, pNew_ext, new_ext_block, pDst - new_ext_block)) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if ((pExt) && (ext_len)) + { + mz_uint32 extra_size_remaining = ext_len; + const mz_uint8 *pExtra_data = pExt; + + do + { + mz_uint32 field_id, field_data_size, field_total_size; + + if (extra_size_remaining < (sizeof(mz_uint16) * 2)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + field_id = MZ_READ_LE16(pExtra_data); + field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16)); + field_total_size = field_data_size + sizeof(mz_uint16) * 2; + + if (field_total_size > extra_size_remaining) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + if (field_id != MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) + { + if (!mz_zip_array_push_back(pZip, pNew_ext, pExtra_data, field_total_size)) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + pExtra_data += field_total_size; + extra_size_remaining -= field_total_size; + } while (extra_size_remaining); + } + + return MZ_TRUE; +} + +/* TODO: This func is now pretty freakin complex due to zip64, split it up? */ +mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint src_file_index) +{ + mz_uint n, bit_flags, num_alignment_padding_bytes, src_central_dir_following_data_size; + mz_uint64 src_archive_bytes_remaining, local_dir_header_ofs; + mz_uint64 cur_src_file_ofs, cur_dst_file_ofs; + mz_uint32 local_header_u32[(MZ_ZIP_LOCAL_DIR_HEADER_SIZE + sizeof(mz_uint32) - 1) / sizeof(mz_uint32)]; + mz_uint8 *pLocal_header = (mz_uint8 *)local_header_u32; + mz_uint8 new_central_header[MZ_ZIP_CENTRAL_DIR_HEADER_SIZE]; + size_t orig_central_dir_size; + mz_zip_internal_state *pState; + void *pBuf; + const mz_uint8 *pSrc_central_header; + mz_zip_archive_file_stat src_file_stat; + mz_uint32 src_filename_len, src_comment_len, src_ext_len; + mz_uint32 local_header_filename_size, local_header_extra_len; + mz_uint64 local_header_comp_size, local_header_uncomp_size; + mz_bool found_zip64_ext_data_in_ldir = MZ_FALSE; + + /* Sanity checks */ + if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING) || (!pSource_zip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + /* Don't support copying files from zip64 archives to non-zip64, even though in some cases this is possible */ + if ((pSource_zip->m_pState->m_zip64) && (!pZip->m_pState->m_zip64)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + /* Get pointer to the source central dir header and crack it */ + if (NULL == (pSrc_central_header = mz_zip_get_cdh(pSource_zip, src_file_index))) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (MZ_READ_LE32(pSrc_central_header + MZ_ZIP_CDH_SIG_OFS) != MZ_ZIP_CENTRAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + src_filename_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_FILENAME_LEN_OFS); + src_comment_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_COMMENT_LEN_OFS); + src_ext_len = MZ_READ_LE16(pSrc_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS); + src_central_dir_following_data_size = src_filename_len + src_ext_len + src_comment_len; + + /* TODO: We don't support central dir's >= MZ_UINT32_MAX bytes right now (+32 fudge factor in case we need to add more extra data) */ + if ((pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + 32) >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + + num_alignment_padding_bytes = mz_zip_writer_compute_padding_needed_for_file_alignment(pZip); + + if (!pState->m_zip64) + { + if (pZip->m_total_files == MZ_UINT16_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + else + { + /* TODO: Our zip64 support still has some 32-bit limits that may not be worth fixing. */ + if (pZip->m_total_files == MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + + if (!mz_zip_file_stat_internal(pSource_zip, src_file_index, pSrc_central_header, &src_file_stat, NULL)) + return MZ_FALSE; + + cur_src_file_ofs = src_file_stat.m_local_header_ofs; + cur_dst_file_ofs = pZip->m_archive_size; + + /* Read the source archive's local dir header */ + if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + + if (MZ_READ_LE32(pLocal_header) != MZ_ZIP_LOCAL_DIR_HEADER_SIG) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + + cur_src_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE; + + /* Compute the total size we need to copy (filename+extra data+compressed data) */ + local_header_filename_size = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_FILENAME_LEN_OFS); + local_header_extra_len = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_EXTRA_LEN_OFS); + local_header_comp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_COMPRESSED_SIZE_OFS); + local_header_uncomp_size = MZ_READ_LE32(pLocal_header + MZ_ZIP_LDH_DECOMPRESSED_SIZE_OFS); + src_archive_bytes_remaining = local_header_filename_size + local_header_extra_len + src_file_stat.m_comp_size; + + /* Try to find a zip64 extended information field */ + if ((local_header_extra_len) && ((local_header_comp_size == MZ_UINT32_MAX) || (local_header_uncomp_size == MZ_UINT32_MAX))) + { + mz_zip_array file_data_array; + const mz_uint8 *pExtra_data; + mz_uint32 extra_size_remaining = local_header_extra_len; + + mz_zip_array_init(&file_data_array, 1); + if (!mz_zip_array_resize(pZip, &file_data_array, local_header_extra_len, MZ_FALSE)) + { + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, src_file_stat.m_local_header_ofs + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + local_header_filename_size, file_data_array.m_p, local_header_extra_len) != local_header_extra_len) + { + mz_zip_array_clear(pZip, &file_data_array); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + + pExtra_data = (const mz_uint8 *)file_data_array.m_p; + + do + { + mz_uint32 field_id, field_data_size, field_total_size; + + if (extra_size_remaining < (sizeof(mz_uint16) * 2)) + { + mz_zip_array_clear(pZip, &file_data_array); + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + field_id = MZ_READ_LE16(pExtra_data); + field_data_size = MZ_READ_LE16(pExtra_data + sizeof(mz_uint16)); + field_total_size = field_data_size + sizeof(mz_uint16) * 2; + + if (field_total_size > extra_size_remaining) + { + mz_zip_array_clear(pZip, &file_data_array); + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + if (field_id == MZ_ZIP64_EXTENDED_INFORMATION_FIELD_HEADER_ID) + { + const mz_uint8 *pSrc_field_data = pExtra_data + sizeof(mz_uint32); + + if (field_data_size < sizeof(mz_uint64) * 2) + { + mz_zip_array_clear(pZip, &file_data_array); + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_HEADER_OR_CORRUPTED); + } + + local_header_uncomp_size = MZ_READ_LE64(pSrc_field_data); + local_header_comp_size = MZ_READ_LE64(pSrc_field_data + sizeof(mz_uint64)); /* may be 0 if there's a descriptor */ + + found_zip64_ext_data_in_ldir = MZ_TRUE; + break; + } + + pExtra_data += field_total_size; + extra_size_remaining -= field_total_size; + } while (extra_size_remaining); + + mz_zip_array_clear(pZip, &file_data_array); + } + + if (!pState->m_zip64) + { + /* Try to detect if the new archive will most likely wind up too big and bail early (+(sizeof(mz_uint32) * 4) is for the optional descriptor which could be present, +64 is a fudge factor). */ + /* We also check when the archive is finalized so this doesn't need to be perfect. */ + mz_uint64 approx_new_archive_size = cur_dst_file_ofs + num_alignment_padding_bytes + MZ_ZIP_LOCAL_DIR_HEADER_SIZE + src_archive_bytes_remaining + (sizeof(mz_uint32) * 4) + + pState->m_central_dir.m_size + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_central_dir_following_data_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE + 64; + + if (approx_new_archive_size >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + } + + /* Write dest archive padding */ + if (!mz_zip_writer_write_zeros(pZip, cur_dst_file_ofs, num_alignment_padding_bytes)) + return MZ_FALSE; + + cur_dst_file_ofs += num_alignment_padding_bytes; + + local_dir_header_ofs = cur_dst_file_ofs; + if (pZip->m_file_offset_alignment) + { + MZ_ASSERT((local_dir_header_ofs & (pZip->m_file_offset_alignment - 1)) == 0); + } + + /* The original zip's local header+ext block doesn't change, even with zip64, so we can just copy it over to the dest zip */ + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pLocal_header, MZ_ZIP_LOCAL_DIR_HEADER_SIZE) != MZ_ZIP_LOCAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + cur_dst_file_ofs += MZ_ZIP_LOCAL_DIR_HEADER_SIZE; + + /* Copy over the source archive bytes to the dest archive, also ensure we have enough buf space to handle optional data descriptor */ + if (NULL == (pBuf = pZip->m_pAlloc(pZip->m_pAlloc_opaque, 1, (size_t)MZ_MAX(32U, MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining))))) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + while (src_archive_bytes_remaining) + { + n = (mz_uint)MZ_MIN((mz_uint64)MZ_ZIP_MAX_IO_BUF_SIZE, src_archive_bytes_remaining); + if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, n) != n) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + cur_src_file_ofs += n; + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + cur_dst_file_ofs += n; + + src_archive_bytes_remaining -= n; + } + + /* Now deal with the optional data descriptor */ + bit_flags = MZ_READ_LE16(pLocal_header + MZ_ZIP_LDH_BIT_FLAG_OFS); + if (bit_flags & 8) + { + /* Copy data descriptor */ + if ((pSource_zip->m_pState->m_zip64) || (found_zip64_ext_data_in_ldir)) + { + /* src is zip64, dest must be zip64 */ + + /* name uint32_t's */ + /* id 1 (optional in zip64?) */ + /* crc 1 */ + /* comp_size 2 */ + /* uncomp_size 2 */ + if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, (sizeof(mz_uint32) * 6)) != (sizeof(mz_uint32) * 6)) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + + n = sizeof(mz_uint32) * ((MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID) ? 6 : 5); + } + else + { + /* src is NOT zip64 */ + mz_bool has_id; + + if (pSource_zip->m_pRead(pSource_zip->m_pIO_opaque, cur_src_file_ofs, pBuf, sizeof(mz_uint32) * 4) != sizeof(mz_uint32) * 4) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_READ_FAILED); + } + + has_id = (MZ_READ_LE32(pBuf) == MZ_ZIP_DATA_DESCRIPTOR_ID); + + if (pZip->m_pState->m_zip64) + { + /* dest is zip64, so upgrade the data descriptor */ + const mz_uint8 *pSrc_descriptor = (const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0); + const mz_uint32 src_crc32 = MZ_READ_LE32(pSrc_descriptor); + const mz_uint64 src_comp_size = MZ_READ_LE32(pSrc_descriptor + sizeof(mz_uint32)); + const mz_uint64 src_uncomp_size = MZ_READ_LE32(pSrc_descriptor + 2*sizeof(mz_uint32)); + + mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID); + mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32); + mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 2, src_comp_size); + mz_write_le64((mz_uint8 *)pBuf + sizeof(mz_uint32) * 4, src_uncomp_size); + + n = sizeof(mz_uint32) * 6; + } + else + { + /* dest is NOT zip64, just copy it as-is */ + n = sizeof(mz_uint32) * (has_id ? 4 : 3); + } + } + + if (pZip->m_pWrite(pZip->m_pIO_opaque, cur_dst_file_ofs, pBuf, n) != n) + { + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + } + + cur_src_file_ofs += n; + cur_dst_file_ofs += n; + } + pZip->m_pFree(pZip->m_pAlloc_opaque, pBuf); + + /* Finally, add the new central dir header */ + orig_central_dir_size = pState->m_central_dir.m_size; + + memcpy(new_central_header, pSrc_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE); + + if (pState->m_zip64) + { + /* This is the painful part: We need to write a new central dir header + ext block with updated zip64 fields, and ensure the old fields (if any) are not included. */ + const mz_uint8 *pSrc_ext = pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len; + mz_zip_array new_ext_block; + + mz_zip_array_init(&new_ext_block, sizeof(mz_uint8)); + + MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_COMPRESSED_SIZE_OFS, MZ_UINT32_MAX); + MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_DECOMPRESSED_SIZE_OFS, MZ_UINT32_MAX); + MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, MZ_UINT32_MAX); + + if (!mz_zip_writer_update_zip64_extension_block(&new_ext_block, pZip, pSrc_ext, src_ext_len, &src_file_stat.m_comp_size, &src_file_stat.m_uncomp_size, &local_dir_header_ofs, NULL)) + { + mz_zip_array_clear(pZip, &new_ext_block); + return MZ_FALSE; + } + + MZ_WRITE_LE16(new_central_header + MZ_ZIP_CDH_EXTRA_LEN_OFS, new_ext_block.m_size); + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) + { + mz_zip_array_clear(pZip, &new_ext_block); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_filename_len)) + { + mz_zip_array_clear(pZip, &new_ext_block); + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_ext_block.m_p, new_ext_block.m_size)) + { + mz_zip_array_clear(pZip, &new_ext_block); + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE + src_filename_len + src_ext_len, src_comment_len)) + { + mz_zip_array_clear(pZip, &new_ext_block); + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + mz_zip_array_clear(pZip, &new_ext_block); + } + else + { + /* sanity checks */ + if (cur_dst_file_ofs > MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + + if (local_dir_header_ofs >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_ARCHIVE_TOO_LARGE); + + MZ_WRITE_LE32(new_central_header + MZ_ZIP_CDH_LOCAL_HEADER_OFS, local_dir_header_ofs); + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, new_central_header, MZ_ZIP_CENTRAL_DIR_HEADER_SIZE)) + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir, pSrc_central_header + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, src_central_dir_following_data_size)) + { + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + } + + /* This shouldn't trigger unless we screwed up during the initial sanity checks */ + if (pState->m_central_dir.m_size >= MZ_UINT32_MAX) + { + /* TODO: Support central dirs >= 32-bits in size */ + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_UNSUPPORTED_CDIR_SIZE); + } + + n = (mz_uint32)orig_central_dir_size; + if (!mz_zip_array_push_back(pZip, &pState->m_central_dir_offsets, &n, 1)) + { + mz_zip_array_resize(pZip, &pState->m_central_dir, orig_central_dir_size, MZ_FALSE); + return mz_zip_set_error(pZip, MZ_ZIP_ALLOC_FAILED); + } + + pZip->m_total_files++; + pZip->m_archive_size = cur_dst_file_ofs; + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip) +{ + mz_zip_internal_state *pState; + mz_uint64 central_dir_ofs, central_dir_size; + mz_uint8 hdr[256]; + + if ((!pZip) || (!pZip->m_pState) || (pZip->m_zip_mode != MZ_ZIP_MODE_WRITING)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + pState = pZip->m_pState; + + if (pState->m_zip64) + { + if ((mz_uint64)pState->m_central_dir.m_size >= MZ_UINT32_MAX) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + else + { + if ((pZip->m_total_files > MZ_UINT16_MAX) || ((pZip->m_archive_size + pState->m_central_dir.m_size + MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) > MZ_UINT32_MAX)) + return mz_zip_set_error(pZip, MZ_ZIP_TOO_MANY_FILES); + } + + central_dir_ofs = 0; + central_dir_size = 0; + if (pZip->m_total_files) + { + /* Write central directory */ + central_dir_ofs = pZip->m_archive_size; + central_dir_size = pState->m_central_dir.m_size; + pZip->m_central_directory_file_ofs = central_dir_ofs; + if (pZip->m_pWrite(pZip->m_pIO_opaque, central_dir_ofs, pState->m_central_dir.m_p, (size_t)central_dir_size) != central_dir_size) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + pZip->m_archive_size += central_dir_size; + } + + if (pState->m_zip64) + { + /* Write zip64 end of central directory header */ + mz_uint64 rel_ofs_to_zip64_ecdr = pZip->m_archive_size; + + MZ_CLEAR_ARR(hdr); + MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDH_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIG); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_SIZE_OF_RECORD_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE - sizeof(mz_uint32) - sizeof(mz_uint64)); + MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_MADE_BY_OFS, 0x031E); /* TODO: always Unix */ + MZ_WRITE_LE16(hdr + MZ_ZIP64_ECDH_VERSION_NEEDED_OFS, 0x002D); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, pZip->m_total_files); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_TOTAL_ENTRIES_OFS, pZip->m_total_files); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_SIZE_OFS, central_dir_size); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDH_CDIR_OFS_OFS, central_dir_ofs); + if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_HEADER_SIZE; + + /* Write zip64 end of central directory locator */ + MZ_CLEAR_ARR(hdr); + MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_SIG_OFS, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIG); + MZ_WRITE_LE64(hdr + MZ_ZIP64_ECDL_REL_OFS_TO_ZIP64_ECDR_OFS, rel_ofs_to_zip64_ecdr); + MZ_WRITE_LE32(hdr + MZ_ZIP64_ECDL_TOTAL_NUMBER_OF_DISKS_OFS, 1); + if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) != MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + + pZip->m_archive_size += MZ_ZIP64_END_OF_CENTRAL_DIR_LOCATOR_SIZE; + } + + /* Write end of central directory record */ + MZ_CLEAR_ARR(hdr); + MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_SIG_OFS, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIG); + MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_NUM_ENTRIES_ON_DISK_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files)); + MZ_WRITE_LE16(hdr + MZ_ZIP_ECDH_CDIR_TOTAL_ENTRIES_OFS, MZ_MIN(MZ_UINT16_MAX, pZip->m_total_files)); + MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_SIZE_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_size)); + MZ_WRITE_LE32(hdr + MZ_ZIP_ECDH_CDIR_OFS_OFS, MZ_MIN(MZ_UINT32_MAX, central_dir_ofs)); + + if (pZip->m_pWrite(pZip->m_pIO_opaque, pZip->m_archive_size, hdr, MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) != MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_WRITE_FAILED); + +#ifndef MINIZ_NO_STDIO + if ((pState->m_pFile) && (MZ_FFLUSH(pState->m_pFile) == EOF)) + return mz_zip_set_error(pZip, MZ_ZIP_FILE_CLOSE_FAILED); +#endif /* #ifndef MINIZ_NO_STDIO */ + + pZip->m_archive_size += MZ_ZIP_END_OF_CENTRAL_DIR_HEADER_SIZE; + + pZip->m_zip_mode = MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED; + return MZ_TRUE; +} + +mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **ppBuf, size_t *pSize) +{ + if ((!ppBuf) || (!pSize)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + *ppBuf = NULL; + *pSize = 0; + + if ((!pZip) || (!pZip->m_pState)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (pZip->m_pWrite != mz_zip_heap_write_func) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + if (!mz_zip_writer_finalize_archive(pZip)) + return MZ_FALSE; + + *ppBuf = pZip->m_pState->m_pMem; + *pSize = pZip->m_pState->m_mem_size; + pZip->m_pState->m_pMem = NULL; + pZip->m_pState->m_mem_size = pZip->m_pState->m_mem_capacity = 0; + + return MZ_TRUE; +} + +mz_bool mz_zip_writer_end(mz_zip_archive *pZip) +{ + return mz_zip_writer_end_internal(pZip, MZ_TRUE); +} + +#ifndef MINIZ_NO_STDIO +mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags) +{ + return mz_zip_add_mem_to_archive_file_in_place_v2(pZip_filename, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, NULL); +} + +mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_zip_error *pErr) +{ + mz_bool status, created_new_archive = MZ_FALSE; + mz_zip_archive zip_archive; + struct MZ_FILE_STAT_STRUCT file_stat; + mz_zip_error actual_err = MZ_ZIP_NO_ERROR; + + mz_zip_zero_struct(&zip_archive); + if ((int)level_and_flags < 0) + level_and_flags = MZ_DEFAULT_LEVEL; + + if ((!pZip_filename) || (!pArchive_name) || ((buf_size) && (!pBuf)) || ((comment_size) && (!pComment)) || ((level_and_flags & 0xF) > MZ_UBER_COMPRESSION)) + { + if (pErr) + *pErr = MZ_ZIP_INVALID_PARAMETER; + return MZ_FALSE; + } + + if (!mz_zip_writer_validate_archive_name(pArchive_name)) + { + if (pErr) + *pErr = MZ_ZIP_INVALID_FILENAME; + return MZ_FALSE; + } + + /* Important: The regular non-64 bit version of stat() can fail here if the file is very large, which could cause the archive to be overwritten. */ + /* So be sure to compile with _LARGEFILE64_SOURCE 1 */ + if (MZ_FILE_STAT(pZip_filename, &file_stat) != 0) + { + /* Create a new archive. */ + if (!mz_zip_writer_init_file_v2(&zip_archive, pZip_filename, 0, level_and_flags)) + { + if (pErr) + *pErr = zip_archive.m_last_error; + return MZ_FALSE; + } + + created_new_archive = MZ_TRUE; + } + else + { + /* Append to an existing archive. */ + if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, level_and_flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0)) + { + if (pErr) + *pErr = zip_archive.m_last_error; + return MZ_FALSE; + } + + if (!mz_zip_writer_init_from_reader_v2(&zip_archive, pZip_filename, level_and_flags)) + { + if (pErr) + *pErr = zip_archive.m_last_error; + + mz_zip_reader_end_internal(&zip_archive, MZ_FALSE); + + return MZ_FALSE; + } + } + + status = mz_zip_writer_add_mem_ex(&zip_archive, pArchive_name, pBuf, buf_size, pComment, comment_size, level_and_flags, 0, 0); + actual_err = zip_archive.m_last_error; + + /* Always finalize, even if adding failed for some reason, so we have a valid central directory. (This may not always succeed, but we can try.) */ + if (!mz_zip_writer_finalize_archive(&zip_archive)) + { + if (!actual_err) + actual_err = zip_archive.m_last_error; + + status = MZ_FALSE; + } + + if (!mz_zip_writer_end_internal(&zip_archive, status)) + { + if (!actual_err) + actual_err = zip_archive.m_last_error; + + status = MZ_FALSE; + } + + if ((!status) && (created_new_archive)) + { + /* It's a new archive and something went wrong, so just delete it. */ + int ignoredStatus = MZ_DELETE_FILE(pZip_filename); + (void)ignoredStatus; + } + + if (pErr) + *pErr = actual_err; + + return status; +} + +void *mz_zip_extract_archive_file_to_heap_v2(const char *pZip_filename, const char *pArchive_name, const char *pComment, size_t *pSize, mz_uint flags, mz_zip_error *pErr) +{ + mz_uint32 file_index; + mz_zip_archive zip_archive; + void *p = NULL; + + if (pSize) + *pSize = 0; + + if ((!pZip_filename) || (!pArchive_name)) + { + if (pErr) + *pErr = MZ_ZIP_INVALID_PARAMETER; + + return NULL; + } + + mz_zip_zero_struct(&zip_archive); + if (!mz_zip_reader_init_file_v2(&zip_archive, pZip_filename, flags | MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY, 0, 0)) + { + if (pErr) + *pErr = zip_archive.m_last_error; + + return NULL; + } + + if (mz_zip_reader_locate_file_v2(&zip_archive, pArchive_name, pComment, flags, &file_index)) + { + p = mz_zip_reader_extract_to_heap(&zip_archive, file_index, pSize, flags); + } + + mz_zip_reader_end_internal(&zip_archive, p != NULL); + + if (pErr) + *pErr = zip_archive.m_last_error; + + return p; +} + +void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags) +{ + return mz_zip_extract_archive_file_to_heap_v2(pZip_filename, pArchive_name, NULL, pSize, flags, NULL); +} + +#endif /* #ifndef MINIZ_NO_STDIO */ + +#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */ + +/* ------------------- Misc utils */ + +mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip) +{ + return pZip ? pZip->m_zip_mode : MZ_ZIP_MODE_INVALID; +} + +mz_zip_type mz_zip_get_type(mz_zip_archive *pZip) +{ + return pZip ? pZip->m_zip_type : MZ_ZIP_TYPE_INVALID; +} + +mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip, mz_zip_error err_num) +{ + mz_zip_error prev_err; + + if (!pZip) + return MZ_ZIP_INVALID_PARAMETER; + + prev_err = pZip->m_last_error; + + pZip->m_last_error = err_num; + return prev_err; +} + +mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip) +{ + if (!pZip) + return MZ_ZIP_INVALID_PARAMETER; + + return pZip->m_last_error; +} + +mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip) +{ + return mz_zip_set_last_error(pZip, MZ_ZIP_NO_ERROR); +} + +mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip) +{ + mz_zip_error prev_err; + + if (!pZip) + return MZ_ZIP_INVALID_PARAMETER; + + prev_err = pZip->m_last_error; + + pZip->m_last_error = MZ_ZIP_NO_ERROR; + return prev_err; +} + +const char *mz_zip_get_error_string(mz_zip_error mz_err) +{ + switch (mz_err) + { + case MZ_ZIP_NO_ERROR: + return "no error"; + case MZ_ZIP_UNDEFINED_ERROR: + return "undefined error"; + case MZ_ZIP_TOO_MANY_FILES: + return "too many files"; + case MZ_ZIP_FILE_TOO_LARGE: + return "file too large"; + case MZ_ZIP_UNSUPPORTED_METHOD: + return "unsupported method"; + case MZ_ZIP_UNSUPPORTED_ENCRYPTION: + return "unsupported encryption"; + case MZ_ZIP_UNSUPPORTED_FEATURE: + return "unsupported feature"; + case MZ_ZIP_FAILED_FINDING_CENTRAL_DIR: + return "failed finding central directory"; + case MZ_ZIP_NOT_AN_ARCHIVE: + return "not a ZIP archive"; + case MZ_ZIP_INVALID_HEADER_OR_CORRUPTED: + return "invalid header or archive is corrupted"; + case MZ_ZIP_UNSUPPORTED_MULTIDISK: + return "unsupported multidisk archive"; + case MZ_ZIP_DECOMPRESSION_FAILED: + return "decompression failed or archive is corrupted"; + case MZ_ZIP_COMPRESSION_FAILED: + return "compression failed"; + case MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE: + return "unexpected decompressed size"; + case MZ_ZIP_CRC_CHECK_FAILED: + return "CRC-32 check failed"; + case MZ_ZIP_UNSUPPORTED_CDIR_SIZE: + return "unsupported central directory size"; + case MZ_ZIP_ALLOC_FAILED: + return "allocation failed"; + case MZ_ZIP_FILE_OPEN_FAILED: + return "file open failed"; + case MZ_ZIP_FILE_CREATE_FAILED: + return "file create failed"; + case MZ_ZIP_FILE_WRITE_FAILED: + return "file write failed"; + case MZ_ZIP_FILE_READ_FAILED: + return "file read failed"; + case MZ_ZIP_FILE_CLOSE_FAILED: + return "file close failed"; + case MZ_ZIP_FILE_SEEK_FAILED: + return "file seek failed"; + case MZ_ZIP_FILE_STAT_FAILED: + return "file stat failed"; + case MZ_ZIP_INVALID_PARAMETER: + return "invalid parameter"; + case MZ_ZIP_INVALID_FILENAME: + return "invalid filename"; + case MZ_ZIP_BUF_TOO_SMALL: + return "buffer too small"; + case MZ_ZIP_INTERNAL_ERROR: + return "internal error"; + case MZ_ZIP_FILE_NOT_FOUND: + return "file not found"; + case MZ_ZIP_ARCHIVE_TOO_LARGE: + return "archive is too large"; + case MZ_ZIP_VALIDATION_FAILED: + return "validation failed"; + case MZ_ZIP_WRITE_CALLBACK_FAILED: + return "write callback failed"; + case MZ_ZIP_TOTAL_ERRORS: + return "total errors"; + default: + break; + } + + return "unknown error"; +} + +/* Note: Just because the archive is not zip64 doesn't necessarily mean it doesn't have Zip64 extended information extra field, argh. */ +mz_bool mz_zip_is_zip64(mz_zip_archive *pZip) +{ + if ((!pZip) || (!pZip->m_pState)) + return MZ_FALSE; + + return pZip->m_pState->m_zip64; +} + +size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip) +{ + if ((!pZip) || (!pZip->m_pState)) + return 0; + + return pZip->m_pState->m_central_dir.m_size; +} + +mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip) +{ + return pZip ? pZip->m_total_files : 0; +} + +mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip) +{ + if (!pZip) + return 0; + return pZip->m_archive_size; +} + +mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip) +{ + if ((!pZip) || (!pZip->m_pState)) + return 0; + return pZip->m_pState->m_file_archive_start_ofs; +} + +MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip) +{ + if ((!pZip) || (!pZip->m_pState)) + return 0; + return pZip->m_pState->m_pFile; +} + +size_t mz_zip_read_archive_data(mz_zip_archive *pZip, mz_uint64 file_ofs, void *pBuf, size_t n) +{ + if ((!pZip) || (!pZip->m_pState) || (!pBuf) || (!pZip->m_pRead)) + return mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + + return pZip->m_pRead(pZip->m_pIO_opaque, file_ofs, pBuf, n); +} + +mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size) +{ + mz_uint n; + const mz_uint8 *p = mz_zip_get_cdh(pZip, file_index); + if (!p) + { + if (filename_buf_size) + pFilename[0] = '\0'; + mz_zip_set_error(pZip, MZ_ZIP_INVALID_PARAMETER); + return 0; + } + n = MZ_READ_LE16(p + MZ_ZIP_CDH_FILENAME_LEN_OFS); + if (filename_buf_size) + { + n = MZ_MIN(n, filename_buf_size - 1); + memcpy(pFilename, p + MZ_ZIP_CENTRAL_DIR_HEADER_SIZE, n); + pFilename[n] = '\0'; + } + return n + 1; +} + +mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat) +{ + return mz_zip_file_stat_internal(pZip, file_index, mz_zip_get_cdh(pZip, file_index), pStat, NULL); +} + +mz_bool mz_zip_end(mz_zip_archive *pZip) +{ + if (!pZip) + return MZ_FALSE; + + if (pZip->m_zip_mode == MZ_ZIP_MODE_READING) + return mz_zip_reader_end(pZip); +#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS + else if ((pZip->m_zip_mode == MZ_ZIP_MODE_WRITING) || (pZip->m_zip_mode == MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED)) + return mz_zip_writer_end(pZip); +#endif + + return MZ_FALSE; +} + +#ifdef __cplusplus +} +#endif + +#endif /*#ifndef MINIZ_NO_ARCHIVE_APIS*/ diff --git a/third_party/miniz.h b/third_party/miniz.h new file mode 100644 index 0000000..9fcfffc --- /dev/null +++ b/third_party/miniz.h @@ -0,0 +1,1422 @@ +#ifndef MINIZ_EXPORT +#define MINIZ_EXPORT +#endif +/* miniz.c 3.0.0 - public domain deflate/inflate, zlib-subset, ZIP reading/writing/appending, PNG writing + See "unlicense" statement at the end of this file. + Rich Geldreich , last updated Oct. 13, 2013 + Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951: http://www.ietf.org/rfc/rfc1951.txt + + Most API's defined in miniz.c are optional. For example, to disable the archive related functions just define + MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO (see the list below for more macros). + + * Low-level Deflate/Inflate implementation notes: + + Compression: Use the "tdefl" API's. The compressor supports raw, static, and dynamic blocks, lazy or + greedy parsing, match length filtering, RLE-only, and Huffman-only streams. It performs and compresses + approximately as well as zlib. + + Decompression: Use the "tinfl" API's. The entire decompressor is implemented as a single function + coroutine: see tinfl_decompress(). It supports decompression into a 32KB (or larger power of 2) wrapping buffer, or into a memory + block large enough to hold the entire file. + + The low-level tdefl/tinfl API's do not make any use of dynamic memory allocation. + + * zlib-style API notes: + + miniz.c implements a fairly large subset of zlib. There's enough functionality present for it to be a drop-in + zlib replacement in many apps: + The z_stream struct, optional memory allocation callbacks + deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound + inflateInit/inflateInit2/inflate/inflateReset/inflateEnd + compress, compress2, compressBound, uncompress + CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly routines. + Supports raw deflate streams or standard zlib streams with adler-32 checking. + + Limitations: + The callback API's are not implemented yet. No support for gzip headers or zlib static dictionaries. + I've tried to closely emulate zlib's various flavors of stream flushing and return status codes, but + there are no guarantees that miniz.c pulls this off perfectly. + + * PNG writing: See the tdefl_write_image_to_png_file_in_memory() function, originally written by + Alex Evans. Supports 1-4 bytes/pixel images. + + * ZIP archive API notes: + + The ZIP archive API's where designed with simplicity and efficiency in mind, with just enough abstraction to + get the job done with minimal fuss. There are simple API's to retrieve file information, read files from + existing archives, create new archives, append new files to existing archives, or clone archive data from + one archive to another. It supports archives located in memory or the heap, on disk (using stdio.h), + or you can specify custom file read/write callbacks. + + - Archive reading: Just call this function to read a single file from a disk archive: + + void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, + size_t *pSize, mz_uint zip_flags); + + For more complex cases, use the "mz_zip_reader" functions. Upon opening an archive, the entire central + directory is located and read as-is into memory, and subsequent file access only occurs when reading individual files. + + - Archives file scanning: The simple way is to use this function to scan a loaded archive for a specific file: + + int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags); + + The locate operation can optionally check file comments too, which (as one example) can be used to identify + multiple versions of the same file in an archive. This function uses a simple linear search through the central + directory, so it's not very fast. + + Alternately, you can iterate through all the files in an archive (using mz_zip_reader_get_num_files()) and + retrieve detailed info on each file by calling mz_zip_reader_file_stat(). + + - Archive creation: Use the "mz_zip_writer" functions. The ZIP writer immediately writes compressed file data + to disk and builds an exact image of the central directory in memory. The central directory image is written + all at once at the end of the archive file when the archive is finalized. + + The archive writer can optionally align each file's local header and file data to any power of 2 alignment, + which can be useful when the archive will be read from optical media. Also, the writer supports placing + arbitrary data blobs at the very beginning of ZIP archives. Archives written using either feature are still + readable by any ZIP tool. + + - Archive appending: The simple way to add a single file to an archive is to call this function: + + mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, + const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags); + + The archive will be created if it doesn't already exist, otherwise it'll be appended to. + Note the appending is done in-place and is not an atomic operation, so if something goes wrong + during the operation it's possible the archive could be left without a central directory (although the local + file headers and file data will be fine, so the archive will be recoverable). + + For more complex archive modification scenarios: + 1. The safest way is to use a mz_zip_reader to read the existing archive, cloning only those bits you want to + preserve into a new archive using using the mz_zip_writer_add_from_zip_reader() function (which compiles the + compressed file data as-is). When you're done, delete the old archive and rename the newly written archive, and + you're done. This is safe but requires a bunch of temporary disk space or heap memory. + + 2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using mz_zip_writer_init_from_reader(), + append new files as needed, then finalize the archive which will write an updated central directory to the + original archive. (This is basically what mz_zip_add_mem_to_archive_file_in_place() does.) There's a + possibility that the archive's central directory could be lost with this method if anything goes wrong, though. + + - ZIP archive support limitations: + No spanning support. Extraction functions can only handle unencrypted, stored or deflated files. + Requires streams capable of seeking. + + * This is a header file library, like stb_image.c. To get only a header file, either cut and paste the + below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then include miniz.c from it. + + * Important: For best perf. be sure to customize the below macros for your target platform: + #define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1 + #define MINIZ_LITTLE_ENDIAN 1 + #define MINIZ_HAS_64BIT_REGISTERS 1 + + * On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before including miniz.c to ensure miniz + uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be able to process large files + (i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes). +*/ +#pragma once + + + +/* Defines to completely disable specific portions of miniz.c: + If all macros here are defined the only functionality remaining will be CRC-32 and adler-32. */ + +/* Define MINIZ_NO_STDIO to disable all usage and any functions which rely on stdio for file I/O. */ +/*#define MINIZ_NO_STDIO */ + +/* If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able to get the current time, or */ +/* get/set file times, and the C run-time funcs that get/set times won't be called. */ +/* The current downside is the times written to your archives will be from 1979. */ +/*#define MINIZ_NO_TIME */ + +/* Define MINIZ_NO_DEFLATE_APIS to disable all compression API's. */ +/*#define MINIZ_NO_DEFLATE_APIS */ + +/* Define MINIZ_NO_INFLATE_APIS to disable all decompression API's. */ +/*#define MINIZ_NO_INFLATE_APIS */ + +/* Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's. */ +/*#define MINIZ_NO_ARCHIVE_APIS */ + +/* Define MINIZ_NO_ARCHIVE_WRITING_APIS to disable all writing related ZIP archive API's. */ +/*#define MINIZ_NO_ARCHIVE_WRITING_APIS */ + +/* Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression API's. */ +/*#define MINIZ_NO_ZLIB_APIS */ + +/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent conflicts against stock zlib. */ +/*#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES */ + +/* Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc. + Note if MINIZ_NO_MALLOC is defined then the user must always provide custom user alloc/free/realloc + callbacks to the zlib and archive API's, and a few stand-alone helper API's which don't provide custom user + functions (such as tdefl_compress_mem_to_heap() and tinfl_decompress_mem_to_heap()) won't work. */ +/*#define MINIZ_NO_MALLOC */ + +#ifdef MINIZ_NO_INFLATE_APIS +#define MINIZ_NO_ARCHIVE_APIS +#endif + +#ifdef MINIZ_NO_DEFLATE_APIS +#define MINIZ_NO_ARCHIVE_WRITING_APIS +#endif + +#if defined(__TINYC__) && (defined(__linux) || defined(__linux__)) +/* TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc on Linux */ +#define MINIZ_NO_TIME +#endif + +#include + +#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS) +#include +#endif + +#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || defined(__i386) || defined(__i486__) || defined(__i486) || defined(i386) || defined(__ia64__) || defined(__x86_64__) +/* MINIZ_X86_OR_X64_CPU is only used to help set the below macros. */ +#define MINIZ_X86_OR_X64_CPU 1 +#else +#define MINIZ_X86_OR_X64_CPU 0 +#endif + +/* Set MINIZ_LITTLE_ENDIAN only if not set */ +#if !defined(MINIZ_LITTLE_ENDIAN) +#if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) + +#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) +/* Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian. */ +#define MINIZ_LITTLE_ENDIAN 1 +#else +#define MINIZ_LITTLE_ENDIAN 0 +#endif + +#else + +#if MINIZ_X86_OR_X64_CPU +#define MINIZ_LITTLE_ENDIAN 1 +#else +#define MINIZ_LITTLE_ENDIAN 0 +#endif + +#endif +#endif + +/* Using unaligned loads and stores causes errors when using UBSan */ +#if defined(__has_feature) +#if __has_feature(undefined_behavior_sanitizer) +#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 +#endif +#endif + +/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES only if not set */ +#if !defined(MINIZ_USE_UNALIGNED_LOADS_AND_STORES) +#if MINIZ_X86_OR_X64_CPU +/* Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient integer loads and stores from unaligned addresses. */ +#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 +#define MINIZ_UNALIGNED_USE_MEMCPY +#else +#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 0 +#endif +#endif + +#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || defined(_LP64) || defined(__LP64__) || defined(__ia64__) || defined(__x86_64__) +/* Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are reasonably fast (and don't involve compiler generated calls to helper functions). */ +#define MINIZ_HAS_64BIT_REGISTERS 1 +#else +#define MINIZ_HAS_64BIT_REGISTERS 0 +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +/* ------------------- zlib-style API Definitions. */ + +/* For more compatibility with zlib, miniz.c uses unsigned long for some parameters/struct members. Beware: mz_ulong can be either 32 or 64-bits! */ +typedef unsigned long mz_ulong; + +/* mz_free() internally uses the MZ_FREE() macro (which by default calls free() unless you've modified the MZ_MALLOC macro) to release a block allocated from the heap. */ +MINIZ_EXPORT void mz_free(void *p); + +#define MZ_ADLER32_INIT (1) +/* mz_adler32() returns the initial adler-32 value to use when called with ptr==NULL. */ +MINIZ_EXPORT mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len); + +#define MZ_CRC32_INIT (0) +/* mz_crc32() returns the initial CRC-32 value to use when called with ptr==NULL. */ +MINIZ_EXPORT mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len); + +/* Compression strategies. */ +enum +{ + MZ_DEFAULT_STRATEGY = 0, + MZ_FILTERED = 1, + MZ_HUFFMAN_ONLY = 2, + MZ_RLE = 3, + MZ_FIXED = 4 +}; + +/* Method */ +#define MZ_DEFLATED 8 + +/* Heap allocation callbacks. +Note that mz_alloc_func parameter types purposely differ from zlib's: items/size is size_t, not unsigned long. */ +typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size); +typedef void (*mz_free_func)(void *opaque, void *address); +typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items, size_t size); + +/* Compression levels: 0-9 are the standard zlib-style levels, 10 is best possible compression (not zlib compatible, and may be very slow), MZ_DEFAULT_COMPRESSION=MZ_DEFAULT_LEVEL. */ +enum +{ + MZ_NO_COMPRESSION = 0, + MZ_BEST_SPEED = 1, + MZ_BEST_COMPRESSION = 9, + MZ_UBER_COMPRESSION = 10, + MZ_DEFAULT_LEVEL = 6, + MZ_DEFAULT_COMPRESSION = -1 +}; + +#define MZ_VERSION "11.0.2" +#define MZ_VERNUM 0xB002 +#define MZ_VER_MAJOR 11 +#define MZ_VER_MINOR 2 +#define MZ_VER_REVISION 0 +#define MZ_VER_SUBREVISION 0 + +#ifndef MINIZ_NO_ZLIB_APIS + +/* Flush values. For typical usage you only need MZ_NO_FLUSH and MZ_FINISH. The other values are for advanced use (refer to the zlib docs). */ +enum +{ + MZ_NO_FLUSH = 0, + MZ_PARTIAL_FLUSH = 1, + MZ_SYNC_FLUSH = 2, + MZ_FULL_FLUSH = 3, + MZ_FINISH = 4, + MZ_BLOCK = 5 +}; + +/* Return status codes. MZ_PARAM_ERROR is non-standard. */ +enum +{ + MZ_OK = 0, + MZ_STREAM_END = 1, + MZ_NEED_DICT = 2, + MZ_ERRNO = -1, + MZ_STREAM_ERROR = -2, + MZ_DATA_ERROR = -3, + MZ_MEM_ERROR = -4, + MZ_BUF_ERROR = -5, + MZ_VERSION_ERROR = -6, + MZ_PARAM_ERROR = -10000 +}; + +/* Window bits */ +#define MZ_DEFAULT_WINDOW_BITS 15 + +struct mz_internal_state; + +/* Compression/decompression stream struct. */ +typedef struct mz_stream_s +{ + const unsigned char *next_in; /* pointer to next byte to read */ + unsigned int avail_in; /* number of bytes available at next_in */ + mz_ulong total_in; /* total number of bytes consumed so far */ + + unsigned char *next_out; /* pointer to next byte to write */ + unsigned int avail_out; /* number of bytes that can be written to next_out */ + mz_ulong total_out; /* total number of bytes produced so far */ + + char *msg; /* error msg (unused) */ + struct mz_internal_state *state; /* internal state, allocated by zalloc/zfree */ + + mz_alloc_func zalloc; /* optional heap allocation function (defaults to malloc) */ + mz_free_func zfree; /* optional heap free function (defaults to free) */ + void *opaque; /* heap alloc function user pointer */ + + int data_type; /* data_type (unused) */ + mz_ulong adler; /* adler32 of the source or uncompressed data */ + mz_ulong reserved; /* not used */ +} mz_stream; + +typedef mz_stream *mz_streamp; + +/* Returns the version string of miniz.c. */ +MINIZ_EXPORT const char *mz_version(void); + +#ifndef MINIZ_NO_DEFLATE_APIS + +/* mz_deflateInit() initializes a compressor with default options: */ +/* Parameters: */ +/* pStream must point to an initialized mz_stream struct. */ +/* level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION]. */ +/* level 1 enables a specially optimized compression function that's been optimized purely for performance, not ratio. */ +/* (This special func. is currently only enabled when MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.) */ +/* Return values: */ +/* MZ_OK on success. */ +/* MZ_STREAM_ERROR if the stream is bogus. */ +/* MZ_PARAM_ERROR if the input parameters are bogus. */ +/* MZ_MEM_ERROR on out of memory. */ +MINIZ_EXPORT int mz_deflateInit(mz_streamp pStream, int level); + +/* mz_deflateInit2() is like mz_deflate(), except with more control: */ +/* Additional parameters: */ +/* method must be MZ_DEFLATED */ +/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to wrap the deflate stream with zlib header/adler-32 footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate/no header or footer) */ +/* mem_level must be between [1, 9] (it's checked but ignored by miniz.c) */ +MINIZ_EXPORT int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits, int mem_level, int strategy); + +/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2(). */ +MINIZ_EXPORT int mz_deflateReset(mz_streamp pStream); + +/* mz_deflate() compresses the input to output, consuming as much of the input and producing as much output as possible. */ +/* Parameters: */ +/* pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members. */ +/* flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or MZ_FINISH. */ +/* Return values: */ +/* MZ_OK on success (when flushing, or if more input is needed but not available, and/or there's more output to be written but the output buffer is full). */ +/* MZ_STREAM_END if all input has been consumed and all output bytes have been written. Don't call mz_deflate() on the stream anymore. */ +/* MZ_STREAM_ERROR if the stream is bogus. */ +/* MZ_PARAM_ERROR if one of the parameters is invalid. */ +/* MZ_BUF_ERROR if no forward progress is possible because the input and/or output buffers are empty. (Fill up the input buffer or free up some output space and try again.) */ +MINIZ_EXPORT int mz_deflate(mz_streamp pStream, int flush); + +/* mz_deflateEnd() deinitializes a compressor: */ +/* Return values: */ +/* MZ_OK on success. */ +/* MZ_STREAM_ERROR if the stream is bogus. */ +MINIZ_EXPORT int mz_deflateEnd(mz_streamp pStream); + +/* mz_deflateBound() returns a (very) conservative upper bound on the amount of data that could be generated by deflate(), assuming flush is set to only MZ_NO_FLUSH or MZ_FINISH. */ +MINIZ_EXPORT mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len); + +/* Single-call compression functions mz_compress() and mz_compress2(): */ +/* Returns MZ_OK on success, or one of the error codes from mz_deflate() on failure. */ +MINIZ_EXPORT int mz_compress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); +MINIZ_EXPORT int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len, int level); + +/* mz_compressBound() returns a (very) conservative upper bound on the amount of data that could be generated by calling mz_compress(). */ +MINIZ_EXPORT mz_ulong mz_compressBound(mz_ulong source_len); + +#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/ + +#ifndef MINIZ_NO_INFLATE_APIS + +/* Initializes a decompressor. */ +MINIZ_EXPORT int mz_inflateInit(mz_streamp pStream); + +/* mz_inflateInit2() is like mz_inflateInit() with an additional option that controls the window size and whether or not the stream has been wrapped with a zlib header/footer: */ +/* window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate). */ +MINIZ_EXPORT int mz_inflateInit2(mz_streamp pStream, int window_bits); + +/* Quickly resets a compressor without having to reallocate anything. Same as calling mz_inflateEnd() followed by mz_inflateInit()/mz_inflateInit2(). */ +MINIZ_EXPORT int mz_inflateReset(mz_streamp pStream); + +/* Decompresses the input stream to the output, consuming only as much of the input as needed, and writing as much to the output as possible. */ +/* Parameters: */ +/* pStream is the stream to read from and write to. You must initialize/update the next_in, avail_in, next_out, and avail_out members. */ +/* flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH. */ +/* On the first call, if flush is MZ_FINISH it's assumed the input and output buffers are both sized large enough to decompress the entire stream in a single call (this is slightly faster). */ +/* MZ_FINISH implies that there are no more source bytes available beside what's already in the input buffer, and that the output buffer is large enough to hold the rest of the decompressed data. */ +/* Return values: */ +/* MZ_OK on success. Either more input is needed but not available, and/or there's more output to be written but the output buffer is full. */ +/* MZ_STREAM_END if all needed input has been consumed and all output bytes have been written. For zlib streams, the adler-32 of the decompressed data has also been verified. */ +/* MZ_STREAM_ERROR if the stream is bogus. */ +/* MZ_DATA_ERROR if the deflate stream is invalid. */ +/* MZ_PARAM_ERROR if one of the parameters is invalid. */ +/* MZ_BUF_ERROR if no forward progress is possible because the input buffer is empty but the inflater needs more input to continue, or if the output buffer is not large enough. Call mz_inflate() again */ +/* with more input data, or with more room in the output buffer (except when using single call decompression, described above). */ +MINIZ_EXPORT int mz_inflate(mz_streamp pStream, int flush); + +/* Deinitializes a decompressor. */ +MINIZ_EXPORT int mz_inflateEnd(mz_streamp pStream); + +/* Single-call decompression. */ +/* Returns MZ_OK on success, or one of the error codes from mz_inflate() on failure. */ +MINIZ_EXPORT int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong source_len); +MINIZ_EXPORT int mz_uncompress2(unsigned char *pDest, mz_ulong *pDest_len, const unsigned char *pSource, mz_ulong *pSource_len); +#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/ + +/* Returns a string description of the specified error code, or NULL if the error code is invalid. */ +MINIZ_EXPORT const char *mz_error(int err); + +/* Redefine zlib-compatible names to miniz equivalents, so miniz.c can be used as a drop-in replacement for the subset of zlib that miniz.c supports. */ +/* Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you use zlib in the same project. */ +#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES +typedef unsigned char Byte; +typedef unsigned int uInt; +typedef mz_ulong uLong; +typedef Byte Bytef; +typedef uInt uIntf; +typedef char charf; +typedef int intf; +typedef void *voidpf; +typedef uLong uLongf; +typedef void *voidp; +typedef void *const voidpc; +#define Z_NULL 0 +#define Z_NO_FLUSH MZ_NO_FLUSH +#define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH +#define Z_SYNC_FLUSH MZ_SYNC_FLUSH +#define Z_FULL_FLUSH MZ_FULL_FLUSH +#define Z_FINISH MZ_FINISH +#define Z_BLOCK MZ_BLOCK +#define Z_OK MZ_OK +#define Z_STREAM_END MZ_STREAM_END +#define Z_NEED_DICT MZ_NEED_DICT +#define Z_ERRNO MZ_ERRNO +#define Z_STREAM_ERROR MZ_STREAM_ERROR +#define Z_DATA_ERROR MZ_DATA_ERROR +#define Z_MEM_ERROR MZ_MEM_ERROR +#define Z_BUF_ERROR MZ_BUF_ERROR +#define Z_VERSION_ERROR MZ_VERSION_ERROR +#define Z_PARAM_ERROR MZ_PARAM_ERROR +#define Z_NO_COMPRESSION MZ_NO_COMPRESSION +#define Z_BEST_SPEED MZ_BEST_SPEED +#define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION +#define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION +#define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY +#define Z_FILTERED MZ_FILTERED +#define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY +#define Z_RLE MZ_RLE +#define Z_FIXED MZ_FIXED +#define Z_DEFLATED MZ_DEFLATED +#define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS +#define alloc_func mz_alloc_func +#define free_func mz_free_func +#define internal_state mz_internal_state +#define z_stream mz_stream + +#ifndef MINIZ_NO_DEFLATE_APIS +#define deflateInit mz_deflateInit +#define deflateInit2 mz_deflateInit2 +#define deflateReset mz_deflateReset +#define deflate mz_deflate +#define deflateEnd mz_deflateEnd +#define deflateBound mz_deflateBound +#define compress mz_compress +#define compress2 mz_compress2 +#define compressBound mz_compressBound +#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/ + +#ifndef MINIZ_NO_INFLATE_APIS +#define inflateInit mz_inflateInit +#define inflateInit2 mz_inflateInit2 +#define inflateReset mz_inflateReset +#define inflate mz_inflate +#define inflateEnd mz_inflateEnd +#define uncompress mz_uncompress +#define uncompress2 mz_uncompress2 +#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/ + +#define crc32 mz_crc32 +#define adler32 mz_adler32 +#define MAX_WBITS 15 +#define MAX_MEM_LEVEL 9 +#define zError mz_error +#define ZLIB_VERSION MZ_VERSION +#define ZLIB_VERNUM MZ_VERNUM +#define ZLIB_VER_MAJOR MZ_VER_MAJOR +#define ZLIB_VER_MINOR MZ_VER_MINOR +#define ZLIB_VER_REVISION MZ_VER_REVISION +#define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION +#define zlibVersion mz_version +#define zlib_version mz_version() +#endif /* #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES */ + +#endif /* MINIZ_NO_ZLIB_APIS */ + +#ifdef __cplusplus +} +#endif + + + + + +#pragma once +#include +#include +#include +#include + + + +/* ------------------- Types and macros */ +typedef unsigned char mz_uint8; +typedef signed short mz_int16; +typedef unsigned short mz_uint16; +typedef unsigned int mz_uint32; +typedef unsigned int mz_uint; +typedef int64_t mz_int64; +typedef uint64_t mz_uint64; +typedef int mz_bool; + +#define MZ_FALSE (0) +#define MZ_TRUE (1) + +/* Works around MSVC's spammy "warning C4127: conditional expression is constant" message. */ +#ifdef _MSC_VER +#define MZ_MACRO_END while (0, 0) +#else +#define MZ_MACRO_END while (0) +#endif + +#ifdef MINIZ_NO_STDIO +#define MZ_FILE void * +#else +#include +#define MZ_FILE FILE +#endif /* #ifdef MINIZ_NO_STDIO */ + +#ifdef MINIZ_NO_TIME +typedef struct mz_dummy_time_t_tag +{ + mz_uint32 m_dummy1; + mz_uint32 m_dummy2; +} mz_dummy_time_t; +#define MZ_TIME_T mz_dummy_time_t +#else +#define MZ_TIME_T time_t +#endif + +#define MZ_ASSERT(x) assert(x) + +#ifdef MINIZ_NO_MALLOC +#define MZ_MALLOC(x) NULL +#define MZ_FREE(x) (void)x, ((void)0) +#define MZ_REALLOC(p, x) NULL +#else +#define MZ_MALLOC(x) malloc(x) +#define MZ_FREE(x) free(x) +#define MZ_REALLOC(p, x) realloc(p, x) +#endif + +#define MZ_MAX(a, b) (((a) > (b)) ? (a) : (b)) +#define MZ_MIN(a, b) (((a) < (b)) ? (a) : (b)) +#define MZ_CLEAR_OBJ(obj) memset(&(obj), 0, sizeof(obj)) +#define MZ_CLEAR_ARR(obj) memset((obj), 0, sizeof(obj)) +#define MZ_CLEAR_PTR(obj) memset((obj), 0, sizeof(*obj)) + +#if MINIZ_USE_UNALIGNED_LOADS_AND_STORES && MINIZ_LITTLE_ENDIAN +#define MZ_READ_LE16(p) *((const mz_uint16 *)(p)) +#define MZ_READ_LE32(p) *((const mz_uint32 *)(p)) +#else +#define MZ_READ_LE16(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U)) +#define MZ_READ_LE32(p) ((mz_uint32)(((const mz_uint8 *)(p))[0]) | ((mz_uint32)(((const mz_uint8 *)(p))[1]) << 8U) | ((mz_uint32)(((const mz_uint8 *)(p))[2]) << 16U) | ((mz_uint32)(((const mz_uint8 *)(p))[3]) << 24U)) +#endif + +#define MZ_READ_LE64(p) (((mz_uint64)MZ_READ_LE32(p)) | (((mz_uint64)MZ_READ_LE32((const mz_uint8 *)(p) + sizeof(mz_uint32))) << 32U)) + +#ifdef _MSC_VER +#define MZ_FORCEINLINE __forceinline +#elif defined(__GNUC__) +#define MZ_FORCEINLINE __inline__ __attribute__((__always_inline__)) +#else +#define MZ_FORCEINLINE inline +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +extern MINIZ_EXPORT void *miniz_def_alloc_func(void *opaque, size_t items, size_t size); +extern MINIZ_EXPORT void miniz_def_free_func(void *opaque, void *address); +extern MINIZ_EXPORT void *miniz_def_realloc_func(void *opaque, void *address, size_t items, size_t size); + +#define MZ_UINT16_MAX (0xFFFFU) +#define MZ_UINT32_MAX (0xFFFFFFFFU) + +#ifdef __cplusplus +} +#endif + #pragma once + + +#ifndef MINIZ_NO_DEFLATE_APIS + +#ifdef __cplusplus +extern "C" { +#endif +/* ------------------- Low-level Compression API Definitions */ + +/* Set TDEFL_LESS_MEMORY to 1 to use less memory (compression will be slightly slower, and raw/dynamic blocks will be output more frequently). */ +#define TDEFL_LESS_MEMORY 0 + +/* tdefl_init() compression flags logically OR'd together (low 12 bits contain the max. number of probes per dictionary search): */ +/* TDEFL_DEFAULT_MAX_PROBES: The compressor defaults to 128 dictionary probes per dictionary search. 0=Huffman only, 1=Huffman+LZ (fastest/crap compression), 4095=Huffman+LZ (slowest/best compression). */ +enum +{ + TDEFL_HUFFMAN_ONLY = 0, + TDEFL_DEFAULT_MAX_PROBES = 128, + TDEFL_MAX_PROBES_MASK = 0xFFF +}; + +/* TDEFL_WRITE_ZLIB_HEADER: If set, the compressor outputs a zlib header before the deflate data, and the Adler-32 of the source data at the end. Otherwise, you'll get raw deflate data. */ +/* TDEFL_COMPUTE_ADLER32: Always compute the adler-32 of the input data (even when not writing zlib headers). */ +/* TDEFL_GREEDY_PARSING_FLAG: Set to use faster greedy parsing, instead of more efficient lazy parsing. */ +/* TDEFL_NONDETERMINISTIC_PARSING_FLAG: Enable to decrease the compressor's initialization time to the minimum, but the output may vary from run to run given the same input (depending on the contents of memory). */ +/* TDEFL_RLE_MATCHES: Only look for RLE matches (matches with a distance of 1) */ +/* TDEFL_FILTER_MATCHES: Discards matches <= 5 chars if enabled. */ +/* TDEFL_FORCE_ALL_STATIC_BLOCKS: Disable usage of optimized Huffman tables. */ +/* TDEFL_FORCE_ALL_RAW_BLOCKS: Only use raw (uncompressed) deflate blocks. */ +/* The low 12 bits are reserved to control the max # of hash probes per dictionary lookup (see TDEFL_MAX_PROBES_MASK). */ +enum +{ + TDEFL_WRITE_ZLIB_HEADER = 0x01000, + TDEFL_COMPUTE_ADLER32 = 0x02000, + TDEFL_GREEDY_PARSING_FLAG = 0x04000, + TDEFL_NONDETERMINISTIC_PARSING_FLAG = 0x08000, + TDEFL_RLE_MATCHES = 0x10000, + TDEFL_FILTER_MATCHES = 0x20000, + TDEFL_FORCE_ALL_STATIC_BLOCKS = 0x40000, + TDEFL_FORCE_ALL_RAW_BLOCKS = 0x80000 +}; + +/* High level compression functions: */ +/* tdefl_compress_mem_to_heap() compresses a block in memory to a heap block allocated via malloc(). */ +/* On entry: */ +/* pSrc_buf, src_buf_len: Pointer and size of source block to compress. */ +/* flags: The max match finder probes (default is 128) logically OR'd against the above flags. Higher probes are slower but improve compression. */ +/* On return: */ +/* Function returns a pointer to the compressed data, or NULL on failure. */ +/* *pOut_len will be set to the compressed data's size, which could be larger than src_buf_len on uncompressible data. */ +/* The caller must free() the returned block when it's no longer needed. */ +MINIZ_EXPORT void *tdefl_compress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); + +/* tdefl_compress_mem_to_mem() compresses a block in memory to another block in memory. */ +/* Returns 0 on failure. */ +MINIZ_EXPORT size_t tdefl_compress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags); + +/* Compresses an image to a compressed PNG file in memory. */ +/* On entry: */ +/* pImage, w, h, and num_chans describe the image to compress. num_chans may be 1, 2, 3, or 4. */ +/* The image pitch in bytes per scanline will be w*num_chans. The leftmost pixel on the top scanline is stored first in memory. */ +/* level may range from [0,10], use MZ_NO_COMPRESSION, MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc. or a decent default is MZ_DEFAULT_LEVEL */ +/* If flip is true, the image will be flipped on the Y axis (useful for OpenGL apps). */ +/* On return: */ +/* Function returns a pointer to the compressed data, or NULL on failure. */ +/* *pLen_out will be set to the size of the PNG image file. */ +/* The caller must mz_free() the returned heap block (which will typically be larger than *pLen_out) when it's no longer needed. */ +MINIZ_EXPORT void *tdefl_write_image_to_png_file_in_memory_ex(const void *pImage, int w, int h, int num_chans, size_t *pLen_out, mz_uint level, mz_bool flip); +MINIZ_EXPORT void *tdefl_write_image_to_png_file_in_memory(const void *pImage, int w, int h, int num_chans, size_t *pLen_out); + +/* Output stream interface. The compressor uses this interface to write compressed data. It'll typically be called TDEFL_OUT_BUF_SIZE at a time. */ +typedef mz_bool (*tdefl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser); + +/* tdefl_compress_mem_to_output() compresses a block to an output stream. The above helpers use this function internally. */ +MINIZ_EXPORT mz_bool tdefl_compress_mem_to_output(const void *pBuf, size_t buf_len, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags); + +enum +{ + TDEFL_MAX_HUFF_TABLES = 3, + TDEFL_MAX_HUFF_SYMBOLS_0 = 288, + TDEFL_MAX_HUFF_SYMBOLS_1 = 32, + TDEFL_MAX_HUFF_SYMBOLS_2 = 19, + TDEFL_LZ_DICT_SIZE = 32768, + TDEFL_LZ_DICT_SIZE_MASK = TDEFL_LZ_DICT_SIZE - 1, + TDEFL_MIN_MATCH_LEN = 3, + TDEFL_MAX_MATCH_LEN = 258 +}; + +/* TDEFL_OUT_BUF_SIZE MUST be large enough to hold a single entire compressed output block (using static/fixed Huffman codes). */ +#if TDEFL_LESS_MEMORY +enum +{ + TDEFL_LZ_CODE_BUF_SIZE = 24 * 1024, + TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, + TDEFL_MAX_HUFF_SYMBOLS = 288, + TDEFL_LZ_HASH_BITS = 12, + TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, + TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, + TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS +}; +#else +enum +{ + TDEFL_LZ_CODE_BUF_SIZE = 64 * 1024, + TDEFL_OUT_BUF_SIZE = (TDEFL_LZ_CODE_BUF_SIZE * 13) / 10, + TDEFL_MAX_HUFF_SYMBOLS = 288, + TDEFL_LZ_HASH_BITS = 15, + TDEFL_LEVEL1_HASH_SIZE_MASK = 4095, + TDEFL_LZ_HASH_SHIFT = (TDEFL_LZ_HASH_BITS + 2) / 3, + TDEFL_LZ_HASH_SIZE = 1 << TDEFL_LZ_HASH_BITS +}; +#endif + +/* The low-level tdefl functions below may be used directly if the above helper functions aren't flexible enough. The low-level functions don't make any heap allocations, unlike the above helper functions. */ +typedef enum { + TDEFL_STATUS_BAD_PARAM = -2, + TDEFL_STATUS_PUT_BUF_FAILED = -1, + TDEFL_STATUS_OKAY = 0, + TDEFL_STATUS_DONE = 1 +} tdefl_status; + +/* Must map to MZ_NO_FLUSH, MZ_SYNC_FLUSH, etc. enums */ +typedef enum { + TDEFL_NO_FLUSH = 0, + TDEFL_SYNC_FLUSH = 2, + TDEFL_FULL_FLUSH = 3, + TDEFL_FINISH = 4 +} tdefl_flush; + +/* tdefl's compression state structure. */ +typedef struct +{ + tdefl_put_buf_func_ptr m_pPut_buf_func; + void *m_pPut_buf_user; + mz_uint m_flags, m_max_probes[2]; + int m_greedy_parsing; + mz_uint m_adler32, m_lookahead_pos, m_lookahead_size, m_dict_size; + mz_uint8 *m_pLZ_code_buf, *m_pLZ_flags, *m_pOutput_buf, *m_pOutput_buf_end; + mz_uint m_num_flags_left, m_total_lz_bytes, m_lz_code_buf_dict_pos, m_bits_in, m_bit_buffer; + mz_uint m_saved_match_dist, m_saved_match_len, m_saved_lit, m_output_flush_ofs, m_output_flush_remaining, m_finished, m_block_index, m_wants_to_finish; + tdefl_status m_prev_return_status; + const void *m_pIn_buf; + void *m_pOut_buf; + size_t *m_pIn_buf_size, *m_pOut_buf_size; + tdefl_flush m_flush; + const mz_uint8 *m_pSrc; + size_t m_src_buf_left, m_out_buf_ofs; + mz_uint8 m_dict[TDEFL_LZ_DICT_SIZE + TDEFL_MAX_MATCH_LEN - 1]; + mz_uint16 m_huff_count[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; + mz_uint16 m_huff_codes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; + mz_uint8 m_huff_code_sizes[TDEFL_MAX_HUFF_TABLES][TDEFL_MAX_HUFF_SYMBOLS]; + mz_uint8 m_lz_code_buf[TDEFL_LZ_CODE_BUF_SIZE]; + mz_uint16 m_next[TDEFL_LZ_DICT_SIZE]; + mz_uint16 m_hash[TDEFL_LZ_HASH_SIZE]; + mz_uint8 m_output_buf[TDEFL_OUT_BUF_SIZE]; +} tdefl_compressor; + +/* Initializes the compressor. */ +/* There is no corresponding deinit() function because the tdefl API's do not dynamically allocate memory. */ +/* pBut_buf_func: If NULL, output data will be supplied to the specified callback. In this case, the user should call the tdefl_compress_buffer() API for compression. */ +/* If pBut_buf_func is NULL the user should always call the tdefl_compress() API. */ +/* flags: See the above enums (TDEFL_HUFFMAN_ONLY, TDEFL_WRITE_ZLIB_HEADER, etc.) */ +MINIZ_EXPORT tdefl_status tdefl_init(tdefl_compressor *d, tdefl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags); + +/* Compresses a block of data, consuming as much of the specified input buffer as possible, and writing as much compressed data to the specified output buffer as possible. */ +MINIZ_EXPORT tdefl_status tdefl_compress(tdefl_compressor *d, const void *pIn_buf, size_t *pIn_buf_size, void *pOut_buf, size_t *pOut_buf_size, tdefl_flush flush); + +/* tdefl_compress_buffer() is only usable when the tdefl_init() is called with a non-NULL tdefl_put_buf_func_ptr. */ +/* tdefl_compress_buffer() always consumes the entire input buffer. */ +MINIZ_EXPORT tdefl_status tdefl_compress_buffer(tdefl_compressor *d, const void *pIn_buf, size_t in_buf_size, tdefl_flush flush); + +MINIZ_EXPORT tdefl_status tdefl_get_prev_return_status(tdefl_compressor *d); +MINIZ_EXPORT mz_uint32 tdefl_get_adler32(tdefl_compressor *d); + +/* Create tdefl_compress() flags given zlib-style compression parameters. */ +/* level may range from [0,10] (where 10 is absolute max compression, but may be much slower on some files) */ +/* window_bits may be -15 (raw deflate) or 15 (zlib) */ +/* strategy may be either MZ_DEFAULT_STRATEGY, MZ_FILTERED, MZ_HUFFMAN_ONLY, MZ_RLE, or MZ_FIXED */ +MINIZ_EXPORT mz_uint tdefl_create_comp_flags_from_zip_params(int level, int window_bits, int strategy); + +#ifndef MINIZ_NO_MALLOC +/* Allocate the tdefl_compressor structure in C so that */ +/* non-C language bindings to tdefl_ API don't need to worry about */ +/* structure size and allocation mechanism. */ +MINIZ_EXPORT tdefl_compressor *tdefl_compressor_alloc(void); +MINIZ_EXPORT void tdefl_compressor_free(tdefl_compressor *pComp); +#endif + +#ifdef __cplusplus +} +#endif + +#endif /*#ifndef MINIZ_NO_DEFLATE_APIS*/ + #pragma once + +/* ------------------- Low-level Decompression API Definitions */ + +#ifndef MINIZ_NO_INFLATE_APIS + +#ifdef __cplusplus +extern "C" { +#endif +/* Decompression flags used by tinfl_decompress(). */ +/* TINFL_FLAG_PARSE_ZLIB_HEADER: If set, the input has a valid zlib header and ends with an adler32 checksum (it's a valid zlib stream). Otherwise, the input is a raw deflate stream. */ +/* TINFL_FLAG_HAS_MORE_INPUT: If set, there are more input bytes available beyond the end of the supplied input buffer. If clear, the input buffer contains all remaining input. */ +/* TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF: If set, the output buffer is large enough to hold the entire decompressed stream. If clear, the output buffer is at least the size of the dictionary (typically 32KB). */ +/* TINFL_FLAG_COMPUTE_ADLER32: Force adler-32 checksum computation of the decompressed bytes. */ +enum +{ + TINFL_FLAG_PARSE_ZLIB_HEADER = 1, + TINFL_FLAG_HAS_MORE_INPUT = 2, + TINFL_FLAG_USING_NON_WRAPPING_OUTPUT_BUF = 4, + TINFL_FLAG_COMPUTE_ADLER32 = 8 +}; + +/* High level decompression functions: */ +/* tinfl_decompress_mem_to_heap() decompresses a block in memory to a heap block allocated via malloc(). */ +/* On entry: */ +/* pSrc_buf, src_buf_len: Pointer and size of the Deflate or zlib source data to decompress. */ +/* On return: */ +/* Function returns a pointer to the decompressed data, or NULL on failure. */ +/* *pOut_len will be set to the decompressed data's size, which could be larger than src_buf_len on uncompressible data. */ +/* The caller must call mz_free() on the returned block when it's no longer needed. */ +MINIZ_EXPORT void *tinfl_decompress_mem_to_heap(const void *pSrc_buf, size_t src_buf_len, size_t *pOut_len, int flags); + +/* tinfl_decompress_mem_to_mem() decompresses a block in memory to another block in memory. */ +/* Returns TINFL_DECOMPRESS_MEM_TO_MEM_FAILED on failure, or the number of bytes written on success. */ +#define TINFL_DECOMPRESS_MEM_TO_MEM_FAILED ((size_t)(-1)) +MINIZ_EXPORT size_t tinfl_decompress_mem_to_mem(void *pOut_buf, size_t out_buf_len, const void *pSrc_buf, size_t src_buf_len, int flags); + +/* tinfl_decompress_mem_to_callback() decompresses a block in memory to an internal 32KB buffer, and a user provided callback function will be called to flush the buffer. */ +/* Returns 1 on success or 0 on failure. */ +typedef int (*tinfl_put_buf_func_ptr)(const void *pBuf, int len, void *pUser); +MINIZ_EXPORT int tinfl_decompress_mem_to_callback(const void *pIn_buf, size_t *pIn_buf_size, tinfl_put_buf_func_ptr pPut_buf_func, void *pPut_buf_user, int flags); + +struct tinfl_decompressor_tag; +typedef struct tinfl_decompressor_tag tinfl_decompressor; + +#ifndef MINIZ_NO_MALLOC +/* Allocate the tinfl_decompressor structure in C so that */ +/* non-C language bindings to tinfl_ API don't need to worry about */ +/* structure size and allocation mechanism. */ +MINIZ_EXPORT tinfl_decompressor *tinfl_decompressor_alloc(void); +MINIZ_EXPORT void tinfl_decompressor_free(tinfl_decompressor *pDecomp); +#endif + +/* Max size of LZ dictionary. */ +#define TINFL_LZ_DICT_SIZE 32768 + +/* Return status. */ +typedef enum { + /* This flags indicates the inflator needs 1 or more input bytes to make forward progress, but the caller is indicating that no more are available. The compressed data */ + /* is probably corrupted. If you call the inflator again with more bytes it'll try to continue processing the input but this is a BAD sign (either the data is corrupted or you called it incorrectly). */ + /* If you call it again with no input you'll just get TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS again. */ + TINFL_STATUS_FAILED_CANNOT_MAKE_PROGRESS = -4, + + /* This flag indicates that one or more of the input parameters was obviously bogus. (You can try calling it again, but if you get this error the calling code is wrong.) */ + TINFL_STATUS_BAD_PARAM = -3, + + /* This flags indicate the inflator is finished but the adler32 check of the uncompressed data didn't match. If you call it again it'll return TINFL_STATUS_DONE. */ + TINFL_STATUS_ADLER32_MISMATCH = -2, + + /* This flags indicate the inflator has somehow failed (bad code, corrupted input, etc.). If you call it again without resetting via tinfl_init() it it'll just keep on returning the same status failure code. */ + TINFL_STATUS_FAILED = -1, + + /* Any status code less than TINFL_STATUS_DONE must indicate a failure. */ + + /* This flag indicates the inflator has returned every byte of uncompressed data that it can, has consumed every byte that it needed, has successfully reached the end of the deflate stream, and */ + /* if zlib headers and adler32 checking enabled that it has successfully checked the uncompressed data's adler32. If you call it again you'll just get TINFL_STATUS_DONE over and over again. */ + TINFL_STATUS_DONE = 0, + + /* This flag indicates the inflator MUST have more input data (even 1 byte) before it can make any more forward progress, or you need to clear the TINFL_FLAG_HAS_MORE_INPUT */ + /* flag on the next call if you don't have any more source data. If the source data was somehow corrupted it's also possible (but unlikely) for the inflator to keep on demanding input to */ + /* proceed, so be sure to properly set the TINFL_FLAG_HAS_MORE_INPUT flag. */ + TINFL_STATUS_NEEDS_MORE_INPUT = 1, + + /* This flag indicates the inflator definitely has 1 or more bytes of uncompressed data available, but it cannot write this data into the output buffer. */ + /* Note if the source compressed data was corrupted it's possible for the inflator to return a lot of uncompressed data to the caller. I've been assuming you know how much uncompressed data to expect */ + /* (either exact or worst case) and will stop calling the inflator and fail after receiving too much. In pure streaming scenarios where you have no idea how many bytes to expect this may not be possible */ + /* so I may need to add some code to address this. */ + TINFL_STATUS_HAS_MORE_OUTPUT = 2 +} tinfl_status; + +/* Initializes the decompressor to its initial state. */ +#define tinfl_init(r) \ + do \ + { \ + (r)->m_state = 0; \ + } \ + MZ_MACRO_END +#define tinfl_get_adler32(r) (r)->m_check_adler32 + +/* Main low-level decompressor coroutine function. This is the only function actually needed for decompression. All the other functions are just high-level helpers for improved usability. */ +/* This is a universal API, i.e. it can be used as a building block to build any desired higher level decompression API. In the limit case, it can be called once per every byte input or output. */ +MINIZ_EXPORT tinfl_status tinfl_decompress(tinfl_decompressor *r, const mz_uint8 *pIn_buf_next, size_t *pIn_buf_size, mz_uint8 *pOut_buf_start, mz_uint8 *pOut_buf_next, size_t *pOut_buf_size, const mz_uint32 decomp_flags); + +/* Internal/private bits follow. */ +enum +{ + TINFL_MAX_HUFF_TABLES = 3, + TINFL_MAX_HUFF_SYMBOLS_0 = 288, + TINFL_MAX_HUFF_SYMBOLS_1 = 32, + TINFL_MAX_HUFF_SYMBOLS_2 = 19, + TINFL_FAST_LOOKUP_BITS = 10, + TINFL_FAST_LOOKUP_SIZE = 1 << TINFL_FAST_LOOKUP_BITS +}; + +#if MINIZ_HAS_64BIT_REGISTERS +#define TINFL_USE_64BIT_BITBUF 1 +#else +#define TINFL_USE_64BIT_BITBUF 0 +#endif + +#if TINFL_USE_64BIT_BITBUF +typedef mz_uint64 tinfl_bit_buf_t; +#define TINFL_BITBUF_SIZE (64) +#else +typedef mz_uint32 tinfl_bit_buf_t; +#define TINFL_BITBUF_SIZE (32) +#endif + +struct tinfl_decompressor_tag +{ + mz_uint32 m_state, m_num_bits, m_zhdr0, m_zhdr1, m_z_adler32, m_final, m_type, m_check_adler32, m_dist, m_counter, m_num_extra, m_table_sizes[TINFL_MAX_HUFF_TABLES]; + tinfl_bit_buf_t m_bit_buf; + size_t m_dist_from_out_buf_start; + mz_int16 m_look_up[TINFL_MAX_HUFF_TABLES][TINFL_FAST_LOOKUP_SIZE]; + mz_int16 m_tree_0[TINFL_MAX_HUFF_SYMBOLS_0 * 2]; + mz_int16 m_tree_1[TINFL_MAX_HUFF_SYMBOLS_1 * 2]; + mz_int16 m_tree_2[TINFL_MAX_HUFF_SYMBOLS_2 * 2]; + mz_uint8 m_code_size_0[TINFL_MAX_HUFF_SYMBOLS_0]; + mz_uint8 m_code_size_1[TINFL_MAX_HUFF_SYMBOLS_1]; + mz_uint8 m_code_size_2[TINFL_MAX_HUFF_SYMBOLS_2]; + mz_uint8 m_raw_header[4], m_len_codes[TINFL_MAX_HUFF_SYMBOLS_0 + TINFL_MAX_HUFF_SYMBOLS_1 + 137]; +}; + +#ifdef __cplusplus +} +#endif + +#endif /*#ifndef MINIZ_NO_INFLATE_APIS*/ + +#pragma once + + +/* ------------------- ZIP archive reading/writing */ + +#ifndef MINIZ_NO_ARCHIVE_APIS + +#ifdef __cplusplus +extern "C" { +#endif + +enum +{ + /* Note: These enums can be reduced as needed to save memory or stack space - they are pretty conservative. */ + MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024, + MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 512, + MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 512 +}; + +typedef struct +{ + /* Central directory file index. */ + mz_uint32 m_file_index; + + /* Byte offset of this entry in the archive's central directory. Note we currently only support up to UINT_MAX or less bytes in the central dir. */ + mz_uint64 m_central_dir_ofs; + + /* These fields are copied directly from the zip's central dir. */ + mz_uint16 m_version_made_by; + mz_uint16 m_version_needed; + mz_uint16 m_bit_flag; + mz_uint16 m_method; + + /* CRC-32 of uncompressed data. */ + mz_uint32 m_crc32; + + /* File's compressed size. */ + mz_uint64 m_comp_size; + + /* File's uncompressed size. Note, I've seen some old archives where directory entries had 512 bytes for their uncompressed sizes, but when you try to unpack them you actually get 0 bytes. */ + mz_uint64 m_uncomp_size; + + /* Zip internal and external file attributes. */ + mz_uint16 m_internal_attr; + mz_uint32 m_external_attr; + + /* Entry's local header file offset in bytes. */ + mz_uint64 m_local_header_ofs; + + /* Size of comment in bytes. */ + mz_uint32 m_comment_size; + + /* MZ_TRUE if the entry appears to be a directory. */ + mz_bool m_is_directory; + + /* MZ_TRUE if the entry uses encryption/strong encryption (which miniz_zip doesn't support) */ + mz_bool m_is_encrypted; + + /* MZ_TRUE if the file is not encrypted, a patch file, and if it uses a compression method we support. */ + mz_bool m_is_supported; + + /* Filename. If string ends in '/' it's a subdirectory entry. */ + /* Guaranteed to be zero terminated, may be truncated to fit. */ + char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE]; + + /* Comment field. */ + /* Guaranteed to be zero terminated, may be truncated to fit. */ + char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE]; + +#ifdef MINIZ_NO_TIME + MZ_TIME_T m_padding; +#else + MZ_TIME_T m_time; +#endif +} mz_zip_archive_file_stat; + +typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs, void *pBuf, size_t n); +typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs, const void *pBuf, size_t n); +typedef mz_bool (*mz_file_needs_keepalive)(void *pOpaque); + +struct mz_zip_internal_state_tag; +typedef struct mz_zip_internal_state_tag mz_zip_internal_state; + +typedef enum { + MZ_ZIP_MODE_INVALID = 0, + MZ_ZIP_MODE_READING = 1, + MZ_ZIP_MODE_WRITING = 2, + MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3 +} mz_zip_mode; + +typedef enum { + MZ_ZIP_FLAG_CASE_SENSITIVE = 0x0100, + MZ_ZIP_FLAG_IGNORE_PATH = 0x0200, + MZ_ZIP_FLAG_COMPRESSED_DATA = 0x0400, + MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY = 0x0800, + MZ_ZIP_FLAG_VALIDATE_LOCATE_FILE_FLAG = 0x1000, /* if enabled, mz_zip_reader_locate_file() will be called on each file as its validated to ensure the func finds the file in the central dir (intended for testing) */ + MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY = 0x2000, /* validate the local headers, but don't decompress the entire file and check the crc32 */ + MZ_ZIP_FLAG_WRITE_ZIP64 = 0x4000, /* always use the zip64 file format, instead of the original zip file format with automatic switch to zip64. Use as flags parameter with mz_zip_writer_init*_v2 */ + MZ_ZIP_FLAG_WRITE_ALLOW_READING = 0x8000, + MZ_ZIP_FLAG_ASCII_FILENAME = 0x10000, + /*After adding a compressed file, seek back + to local file header and set the correct sizes*/ + MZ_ZIP_FLAG_WRITE_HEADER_SET_SIZE = 0x20000 +} mz_zip_flags; + +typedef enum { + MZ_ZIP_TYPE_INVALID = 0, + MZ_ZIP_TYPE_USER, + MZ_ZIP_TYPE_MEMORY, + MZ_ZIP_TYPE_HEAP, + MZ_ZIP_TYPE_FILE, + MZ_ZIP_TYPE_CFILE, + MZ_ZIP_TOTAL_TYPES +} mz_zip_type; + +/* miniz error codes. Be sure to update mz_zip_get_error_string() if you add or modify this enum. */ +typedef enum { + MZ_ZIP_NO_ERROR = 0, + MZ_ZIP_UNDEFINED_ERROR, + MZ_ZIP_TOO_MANY_FILES, + MZ_ZIP_FILE_TOO_LARGE, + MZ_ZIP_UNSUPPORTED_METHOD, + MZ_ZIP_UNSUPPORTED_ENCRYPTION, + MZ_ZIP_UNSUPPORTED_FEATURE, + MZ_ZIP_FAILED_FINDING_CENTRAL_DIR, + MZ_ZIP_NOT_AN_ARCHIVE, + MZ_ZIP_INVALID_HEADER_OR_CORRUPTED, + MZ_ZIP_UNSUPPORTED_MULTIDISK, + MZ_ZIP_DECOMPRESSION_FAILED, + MZ_ZIP_COMPRESSION_FAILED, + MZ_ZIP_UNEXPECTED_DECOMPRESSED_SIZE, + MZ_ZIP_CRC_CHECK_FAILED, + MZ_ZIP_UNSUPPORTED_CDIR_SIZE, + MZ_ZIP_ALLOC_FAILED, + MZ_ZIP_FILE_OPEN_FAILED, + MZ_ZIP_FILE_CREATE_FAILED, + MZ_ZIP_FILE_WRITE_FAILED, + MZ_ZIP_FILE_READ_FAILED, + MZ_ZIP_FILE_CLOSE_FAILED, + MZ_ZIP_FILE_SEEK_FAILED, + MZ_ZIP_FILE_STAT_FAILED, + MZ_ZIP_INVALID_PARAMETER, + MZ_ZIP_INVALID_FILENAME, + MZ_ZIP_BUF_TOO_SMALL, + MZ_ZIP_INTERNAL_ERROR, + MZ_ZIP_FILE_NOT_FOUND, + MZ_ZIP_ARCHIVE_TOO_LARGE, + MZ_ZIP_VALIDATION_FAILED, + MZ_ZIP_WRITE_CALLBACK_FAILED, + MZ_ZIP_TOTAL_ERRORS +} mz_zip_error; + +typedef struct +{ + mz_uint64 m_archive_size; + mz_uint64 m_central_directory_file_ofs; + + /* We only support up to UINT32_MAX files in zip64 mode. */ + mz_uint32 m_total_files; + mz_zip_mode m_zip_mode; + mz_zip_type m_zip_type; + mz_zip_error m_last_error; + + mz_uint64 m_file_offset_alignment; + + mz_alloc_func m_pAlloc; + mz_free_func m_pFree; + mz_realloc_func m_pRealloc; + void *m_pAlloc_opaque; + + mz_file_read_func m_pRead; + mz_file_write_func m_pWrite; + mz_file_needs_keepalive m_pNeeds_keepalive; + void *m_pIO_opaque; + + mz_zip_internal_state *m_pState; + +} mz_zip_archive; + +typedef struct +{ + mz_zip_archive *pZip; + mz_uint flags; + + int status; + + mz_uint64 read_buf_size, read_buf_ofs, read_buf_avail, comp_remaining, out_buf_ofs, cur_file_ofs; + mz_zip_archive_file_stat file_stat; + void *pRead_buf; + void *pWrite_buf; + + size_t out_blk_remain; + + tinfl_decompressor inflator; + +#ifdef MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS + mz_uint padding; +#else + mz_uint file_crc32; +#endif + +} mz_zip_reader_extract_iter_state; + +/* -------- ZIP reading */ + +/* Inits a ZIP archive reader. */ +/* These functions read and validate the archive's central directory. */ +MINIZ_EXPORT mz_bool mz_zip_reader_init(mz_zip_archive *pZip, mz_uint64 size, mz_uint flags); + +MINIZ_EXPORT mz_bool mz_zip_reader_init_mem(mz_zip_archive *pZip, const void *pMem, size_t size, mz_uint flags); + +#ifndef MINIZ_NO_STDIO +/* Read a archive from a disk file. */ +/* file_start_ofs is the file offset where the archive actually begins, or 0. */ +/* actual_archive_size is the true total size of the archive, which may be smaller than the file's actual size on disk. If zero the entire file is treated as the archive. */ +MINIZ_EXPORT mz_bool mz_zip_reader_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint32 flags); +MINIZ_EXPORT mz_bool mz_zip_reader_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags, mz_uint64 file_start_ofs, mz_uint64 archive_size); + +/* Read an archive from an already opened FILE, beginning at the current file position. */ +/* The archive is assumed to be archive_size bytes long. If archive_size is 0, then the entire rest of the file is assumed to contain the archive. */ +/* The FILE will NOT be closed when mz_zip_reader_end() is called. */ +MINIZ_EXPORT mz_bool mz_zip_reader_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint64 archive_size, mz_uint flags); +#endif + +/* Ends archive reading, freeing all allocations, and closing the input archive file if mz_zip_reader_init_file() was used. */ +MINIZ_EXPORT mz_bool mz_zip_reader_end(mz_zip_archive *pZip); + +/* -------- ZIP reading or writing */ + +/* Clears a mz_zip_archive struct to all zeros. */ +/* Important: This must be done before passing the struct to any mz_zip functions. */ +MINIZ_EXPORT void mz_zip_zero_struct(mz_zip_archive *pZip); + +MINIZ_EXPORT mz_zip_mode mz_zip_get_mode(mz_zip_archive *pZip); +MINIZ_EXPORT mz_zip_type mz_zip_get_type(mz_zip_archive *pZip); + +/* Returns the total number of files in the archive. */ +MINIZ_EXPORT mz_uint mz_zip_reader_get_num_files(mz_zip_archive *pZip); + +MINIZ_EXPORT mz_uint64 mz_zip_get_archive_size(mz_zip_archive *pZip); +MINIZ_EXPORT mz_uint64 mz_zip_get_archive_file_start_offset(mz_zip_archive *pZip); +MINIZ_EXPORT MZ_FILE *mz_zip_get_cfile(mz_zip_archive *pZip); + +/* Reads n bytes of raw archive data, starting at file offset file_ofs, to pBuf. */ +MINIZ_EXPORT size_t mz_zip_read_archive_data(mz_zip_archive *pZip, mz_uint64 file_ofs, void *pBuf, size_t n); + +/* All mz_zip funcs set the m_last_error field in the mz_zip_archive struct. These functions retrieve/manipulate this field. */ +/* Note that the m_last_error functionality is not thread safe. */ +MINIZ_EXPORT mz_zip_error mz_zip_set_last_error(mz_zip_archive *pZip, mz_zip_error err_num); +MINIZ_EXPORT mz_zip_error mz_zip_peek_last_error(mz_zip_archive *pZip); +MINIZ_EXPORT mz_zip_error mz_zip_clear_last_error(mz_zip_archive *pZip); +MINIZ_EXPORT mz_zip_error mz_zip_get_last_error(mz_zip_archive *pZip); +MINIZ_EXPORT const char *mz_zip_get_error_string(mz_zip_error mz_err); + +/* MZ_TRUE if the archive file entry is a directory entry. */ +MINIZ_EXPORT mz_bool mz_zip_reader_is_file_a_directory(mz_zip_archive *pZip, mz_uint file_index); + +/* MZ_TRUE if the file is encrypted/strong encrypted. */ +MINIZ_EXPORT mz_bool mz_zip_reader_is_file_encrypted(mz_zip_archive *pZip, mz_uint file_index); + +/* MZ_TRUE if the compression method is supported, and the file is not encrypted, and the file is not a compressed patch file. */ +MINIZ_EXPORT mz_bool mz_zip_reader_is_file_supported(mz_zip_archive *pZip, mz_uint file_index); + +/* Retrieves the filename of an archive file entry. */ +/* Returns the number of bytes written to pFilename, or if filename_buf_size is 0 this function returns the number of bytes needed to fully store the filename. */ +MINIZ_EXPORT mz_uint mz_zip_reader_get_filename(mz_zip_archive *pZip, mz_uint file_index, char *pFilename, mz_uint filename_buf_size); + +/* Attempts to locates a file in the archive's central directory. */ +/* Valid flags: MZ_ZIP_FLAG_CASE_SENSITIVE, MZ_ZIP_FLAG_IGNORE_PATH */ +/* Returns -1 if the file cannot be found. */ +MINIZ_EXPORT int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_reader_locate_file_v2(mz_zip_archive *pZip, const char *pName, const char *pComment, mz_uint flags, mz_uint32 *file_index); + +/* Returns detailed information about an archive file entry. */ +MINIZ_EXPORT mz_bool mz_zip_reader_file_stat(mz_zip_archive *pZip, mz_uint file_index, mz_zip_archive_file_stat *pStat); + +/* MZ_TRUE if the file is in zip64 format. */ +/* A file is considered zip64 if it contained a zip64 end of central directory marker, or if it contained any zip64 extended file information fields in the central directory. */ +MINIZ_EXPORT mz_bool mz_zip_is_zip64(mz_zip_archive *pZip); + +/* Returns the total central directory size in bytes. */ +/* The current max supported size is <= MZ_UINT32_MAX. */ +MINIZ_EXPORT size_t mz_zip_get_central_dir_size(mz_zip_archive *pZip); + +/* Extracts a archive file to a memory buffer using no memory allocation. */ +/* There must be at least enough room on the stack to store the inflator's state (~34KB or so). */ +MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_mem_no_alloc(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_mem_no_alloc(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags, void *pUser_read_buf, size_t user_read_buf_size); + +/* Extracts a archive file to a memory buffer. */ +MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_mem(mz_zip_archive *pZip, mz_uint file_index, void *pBuf, size_t buf_size, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_mem(mz_zip_archive *pZip, const char *pFilename, void *pBuf, size_t buf_size, mz_uint flags); + +/* Extracts a archive file to a dynamically allocated heap buffer. */ +/* The memory will be allocated via the mz_zip_archive's alloc/realloc functions. */ +/* Returns NULL and sets the last error on failure. */ +MINIZ_EXPORT void *mz_zip_reader_extract_to_heap(mz_zip_archive *pZip, mz_uint file_index, size_t *pSize, mz_uint flags); +MINIZ_EXPORT void *mz_zip_reader_extract_file_to_heap(mz_zip_archive *pZip, const char *pFilename, size_t *pSize, mz_uint flags); + +/* Extracts a archive file using a callback function to output the file's data. */ +MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_callback(mz_zip_archive *pZip, mz_uint file_index, mz_file_write_func pCallback, void *pOpaque, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_callback(mz_zip_archive *pZip, const char *pFilename, mz_file_write_func pCallback, void *pOpaque, mz_uint flags); + +/* Extract a file iteratively */ +MINIZ_EXPORT mz_zip_reader_extract_iter_state* mz_zip_reader_extract_iter_new(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); +MINIZ_EXPORT mz_zip_reader_extract_iter_state* mz_zip_reader_extract_file_iter_new(mz_zip_archive *pZip, const char *pFilename, mz_uint flags); +MINIZ_EXPORT size_t mz_zip_reader_extract_iter_read(mz_zip_reader_extract_iter_state* pState, void* pvBuf, size_t buf_size); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_iter_free(mz_zip_reader_extract_iter_state* pState); + +#ifndef MINIZ_NO_STDIO +/* Extracts a archive file to a disk file and sets its last accessed and modified times. */ +/* This function only extracts files, not archive directory records. */ +MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_file(mz_zip_archive *pZip, mz_uint file_index, const char *pDst_filename, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_file(mz_zip_archive *pZip, const char *pArchive_filename, const char *pDst_filename, mz_uint flags); + +/* Extracts a archive file starting at the current position in the destination FILE stream. */ +MINIZ_EXPORT mz_bool mz_zip_reader_extract_to_cfile(mz_zip_archive *pZip, mz_uint file_index, MZ_FILE *File, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_reader_extract_file_to_cfile(mz_zip_archive *pZip, const char *pArchive_filename, MZ_FILE *pFile, mz_uint flags); +#endif + +#if 0 +/* TODO */ + typedef void *mz_zip_streaming_extract_state_ptr; + mz_zip_streaming_extract_state_ptr mz_zip_streaming_extract_begin(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); + mz_uint64 mz_zip_streaming_extract_get_size(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); + mz_uint64 mz_zip_streaming_extract_get_cur_ofs(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); + mz_bool mz_zip_streaming_extract_seek(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, mz_uint64 new_ofs); + size_t mz_zip_streaming_extract_read(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState, void *pBuf, size_t buf_size); + mz_bool mz_zip_streaming_extract_end(mz_zip_archive *pZip, mz_zip_streaming_extract_state_ptr pState); +#endif + +/* This function compares the archive's local headers, the optional local zip64 extended information block, and the optional descriptor following the compressed data vs. the data in the central directory. */ +/* It also validates that each file can be successfully uncompressed unless the MZ_ZIP_FLAG_VALIDATE_HEADERS_ONLY is specified. */ +MINIZ_EXPORT mz_bool mz_zip_validate_file(mz_zip_archive *pZip, mz_uint file_index, mz_uint flags); + +/* Validates an entire archive by calling mz_zip_validate_file() on each file. */ +MINIZ_EXPORT mz_bool mz_zip_validate_archive(mz_zip_archive *pZip, mz_uint flags); + +/* Misc utils/helpers, valid for ZIP reading or writing */ +MINIZ_EXPORT mz_bool mz_zip_validate_mem_archive(const void *pMem, size_t size, mz_uint flags, mz_zip_error *pErr); +#ifndef MINIZ_NO_STDIO +MINIZ_EXPORT mz_bool mz_zip_validate_file_archive(const char *pFilename, mz_uint flags, mz_zip_error *pErr); +#endif + +/* Universal end function - calls either mz_zip_reader_end() or mz_zip_writer_end(). */ +MINIZ_EXPORT mz_bool mz_zip_end(mz_zip_archive *pZip); + +/* -------- ZIP writing */ + +#ifndef MINIZ_NO_ARCHIVE_WRITING_APIS + +/* Inits a ZIP archive writer. */ +/*Set pZip->m_pWrite (and pZip->m_pIO_opaque) before calling mz_zip_writer_init or mz_zip_writer_init_v2*/ +/*The output is streamable, i.e. file_ofs in mz_file_write_func always increases only by n*/ +MINIZ_EXPORT mz_bool mz_zip_writer_init(mz_zip_archive *pZip, mz_uint64 existing_size); +MINIZ_EXPORT mz_bool mz_zip_writer_init_v2(mz_zip_archive *pZip, mz_uint64 existing_size, mz_uint flags); + +MINIZ_EXPORT mz_bool mz_zip_writer_init_heap(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size); +MINIZ_EXPORT mz_bool mz_zip_writer_init_heap_v2(mz_zip_archive *pZip, size_t size_to_reserve_at_beginning, size_t initial_allocation_size, mz_uint flags); + +#ifndef MINIZ_NO_STDIO +MINIZ_EXPORT mz_bool mz_zip_writer_init_file(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning); +MINIZ_EXPORT mz_bool mz_zip_writer_init_file_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint64 size_to_reserve_at_beginning, mz_uint flags); +MINIZ_EXPORT mz_bool mz_zip_writer_init_cfile(mz_zip_archive *pZip, MZ_FILE *pFile, mz_uint flags); +#endif + +/* Converts a ZIP archive reader object into a writer object, to allow efficient in-place file appends to occur on an existing archive. */ +/* For archives opened using mz_zip_reader_init_file, pFilename must be the archive's filename so it can be reopened for writing. If the file can't be reopened, mz_zip_reader_end() will be called. */ +/* For archives opened using mz_zip_reader_init_mem, the memory block must be growable using the realloc callback (which defaults to realloc unless you've overridden it). */ +/* Finally, for archives opened using mz_zip_reader_init, the mz_zip_archive's user provided m_pWrite function cannot be NULL. */ +/* Note: In-place archive modification is not recommended unless you know what you're doing, because if execution stops or something goes wrong before */ +/* the archive is finalized the file's central directory will be hosed. */ +MINIZ_EXPORT mz_bool mz_zip_writer_init_from_reader(mz_zip_archive *pZip, const char *pFilename); +MINIZ_EXPORT mz_bool mz_zip_writer_init_from_reader_v2(mz_zip_archive *pZip, const char *pFilename, mz_uint flags); + +/* Adds the contents of a memory buffer to an archive. These functions record the current local time into the archive. */ +/* To add a directory entry, call this method with an archive name ending in a forwardslash with an empty buffer. */ +/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */ +MINIZ_EXPORT mz_bool mz_zip_writer_add_mem(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, mz_uint level_and_flags); + +/* Like mz_zip_writer_add_mem(), except you can specify a file comment field, and optionally supply the function with already compressed data. */ +/* uncomp_size/uncomp_crc32 are only used if the MZ_ZIP_FLAG_COMPRESSED_DATA flag is specified. */ +MINIZ_EXPORT mz_bool mz_zip_writer_add_mem_ex(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, + mz_uint64 uncomp_size, mz_uint32 uncomp_crc32); + +MINIZ_EXPORT mz_bool mz_zip_writer_add_mem_ex_v2(mz_zip_archive *pZip, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, + mz_uint64 uncomp_size, mz_uint32 uncomp_crc32, MZ_TIME_T *last_modified, const char *user_extra_data_local, mz_uint user_extra_data_local_len, + const char *user_extra_data_central, mz_uint user_extra_data_central_len); + +/* Adds the contents of a file to an archive. This function also records the disk file's modified time into the archive. */ +/* File data is supplied via a read callback function. User mz_zip_writer_add_(c)file to add a file directly.*/ +MINIZ_EXPORT mz_bool mz_zip_writer_add_read_buf_callback(mz_zip_archive *pZip, const char *pArchive_name, mz_file_read_func read_callback, void* callback_opaque, mz_uint64 max_size, + const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char *user_extra_data_local, mz_uint user_extra_data_local_len, + const char *user_extra_data_central, mz_uint user_extra_data_central_len); + + +#ifndef MINIZ_NO_STDIO +/* Adds the contents of a disk file to an archive. This function also records the disk file's modified time into the archive. */ +/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */ +MINIZ_EXPORT mz_bool mz_zip_writer_add_file(mz_zip_archive *pZip, const char *pArchive_name, const char *pSrc_filename, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags); + +/* Like mz_zip_writer_add_file(), except the file data is read from the specified FILE stream. */ +MINIZ_EXPORT mz_bool mz_zip_writer_add_cfile(mz_zip_archive *pZip, const char *pArchive_name, MZ_FILE *pSrc_file, mz_uint64 max_size, + const MZ_TIME_T *pFile_time, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, const char *user_extra_data_local, mz_uint user_extra_data_local_len, + const char *user_extra_data_central, mz_uint user_extra_data_central_len); +#endif + +/* Adds a file to an archive by fully cloning the data from another archive. */ +/* This function fully clones the source file's compressed data (no recompression), along with its full filename, extra data (it may add or modify the zip64 local header extra data field), and the optional descriptor following the compressed data. */ +MINIZ_EXPORT mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *pSource_zip, mz_uint src_file_index); + +/* Finalizes the archive by writing the central directory records followed by the end of central directory record. */ +/* After an archive is finalized, the only valid call on the mz_zip_archive struct is mz_zip_writer_end(). */ +/* An archive must be manually finalized by calling this function for it to be valid. */ +MINIZ_EXPORT mz_bool mz_zip_writer_finalize_archive(mz_zip_archive *pZip); + +/* Finalizes a heap archive, returning a pointer to the heap block and its size. */ +/* The heap block will be allocated using the mz_zip_archive's alloc/realloc callbacks. */ +MINIZ_EXPORT mz_bool mz_zip_writer_finalize_heap_archive(mz_zip_archive *pZip, void **ppBuf, size_t *pSize); + +/* Ends archive writing, freeing all allocations, and closing the output file if mz_zip_writer_init_file() was used. */ +/* Note for the archive to be valid, it *must* have been finalized before ending (this function will not do it for you). */ +MINIZ_EXPORT mz_bool mz_zip_writer_end(mz_zip_archive *pZip); + +/* -------- Misc. high-level helper functions: */ + +/* mz_zip_add_mem_to_archive_file_in_place() efficiently (but not atomically) appends a memory blob to a ZIP archive. */ +/* Note this is NOT a fully safe operation. If it crashes or dies in some way your archive can be left in a screwed up state (without a central directory). */ +/* level_and_flags - compression level (0-10, see MZ_BEST_SPEED, MZ_BEST_COMPRESSION, etc.) logically OR'd with zero or more mz_zip_flags, or just set to MZ_DEFAULT_COMPRESSION. */ +/* TODO: Perhaps add an option to leave the existing central dir in place in case the add dies? We could then truncate the file (so the old central dir would be at the end) if something goes wrong. */ +MINIZ_EXPORT mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags); +MINIZ_EXPORT mz_bool mz_zip_add_mem_to_archive_file_in_place_v2(const char *pZip_filename, const char *pArchive_name, const void *pBuf, size_t buf_size, const void *pComment, mz_uint16 comment_size, mz_uint level_and_flags, mz_zip_error *pErr); + +#ifndef MINIZ_NO_STDIO +/* Reads a single file from an archive into a heap block. */ +/* If pComment is not NULL, only the file with the specified comment will be extracted. */ +/* Returns NULL on failure. */ +MINIZ_EXPORT void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const char *pArchive_name, size_t *pSize, mz_uint flags); +MINIZ_EXPORT void *mz_zip_extract_archive_file_to_heap_v2(const char *pZip_filename, const char *pArchive_name, const char *pComment, size_t *pSize, mz_uint flags, mz_zip_error *pErr); +#endif + +#endif /* #ifndef MINIZ_NO_ARCHIVE_WRITING_APIS */ + +#ifdef __cplusplus +} +#endif + +#endif /* MINIZ_NO_ARCHIVE_APIS */