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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /modules/libmar/src/mar_extract.c | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/libmar/src/mar_extract.c')
-rw-r--r-- | modules/libmar/src/mar_extract.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/modules/libmar/src/mar_extract.c b/modules/libmar/src/mar_extract.c new file mode 100644 index 0000000000..9b4a3fa26d --- /dev/null +++ b/modules/libmar/src/mar_extract.c @@ -0,0 +1,87 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <string.h> +#include <stdlib.h> +#include "mar_private.h" +#include "mar.h" + +#ifdef XP_WIN +# include <io.h> +# include <direct.h> +# define fdopen _fdopen +#endif + +/* Ensure that the directory containing this file exists */ +static int mar_ensure_parent_dir(const char* path) { + char* slash = strrchr(path, '/'); + if (slash) { + *slash = '\0'; + mar_ensure_parent_dir(path); +#ifdef XP_WIN + _mkdir(path); +#else + mkdir(path, 0755); +#endif + *slash = '/'; + } + return 0; +} + +static int mar_test_callback(MarFile* mar, const MarItem* item, void* unused) { + FILE* fp; + uint8_t buf[BLOCKSIZE]; + int fd, len, offset = 0; + + if (mar_ensure_parent_dir(item->name)) { + return -1; + } + +#ifdef XP_WIN + fd = _open(item->name, _O_BINARY | _O_CREAT | _O_TRUNC | _O_WRONLY, + item->flags); +#else + fd = creat(item->name, item->flags); +#endif + if (fd == -1) { + fprintf(stderr, "ERROR: could not create file in mar_test_callback()\n"); + perror(item->name); + return -1; + } + + fp = fdopen(fd, "wb"); + if (!fp) { + return -1; + } + + while ((len = mar_read(mar, item, offset, buf, sizeof(buf))) > 0) { + if (fwrite(buf, len, 1, fp) != 1) { + break; + } + offset += len; + } + + fclose(fp); + return len == 0 ? 0 : -1; +} + +int mar_extract(const char* path) { + MarFile* mar; + int rv; + + MarReadResult result = mar_open(path, &mar); + if (result != MAR_READ_SUCCESS) { + return -1; + } + + rv = mar_enum_items(mar, mar_test_callback, NULL); + + mar_close(mar); + return rv; +} |