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Diffstat (limited to '')
-rw-r--r-- | src/archive/bz2_archive_plugin.c | 314 |
1 files changed, 0 insertions, 314 deletions
diff --git a/src/archive/bz2_archive_plugin.c b/src/archive/bz2_archive_plugin.c deleted file mode 100644 index e2420048b..000000000 --- a/src/archive/bz2_archive_plugin.c +++ /dev/null @@ -1,314 +0,0 @@ -/* - * Copyright (C) 2003-2011 The Music Player Daemon Project - * http://www.musicpd.org - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -/** - * single bz2 archive handling (requires libbz2) - */ - -#include "config.h" -#include "archive/bz2_archive_plugin.h" -#include "archive_api.h" -#include "input_internal.h" -#include "input_plugin.h" -#include "refcount.h" - -#include <stdint.h> -#include <stddef.h> -#include <string.h> -#include <glib.h> -#include <bzlib.h> - -#ifdef HAVE_OLDER_BZIP2 -#define BZ2_bzDecompressInit bzDecompressInit -#define BZ2_bzDecompress bzDecompress -#endif - -struct bz2_archive_file { - struct archive_file base; - - struct refcount ref; - - char *name; - bool reset; - struct input_stream *istream; -}; - -struct bz2_input_stream { - struct input_stream base; - - struct bz2_archive_file *archive; - - bool eof; - - bz_stream bzstream; - - char buffer[5000]; -}; - -static const struct input_plugin bz2_inputplugin; - -static inline GQuark -bz2_quark(void) -{ - return g_quark_from_static_string("bz2"); -} - -/* single archive handling allocation helpers */ - -static bool -bz2_alloc(struct bz2_input_stream *data, GError **error_r) -{ - int ret; - - data->bzstream.bzalloc = NULL; - data->bzstream.bzfree = NULL; - data->bzstream.opaque = NULL; - - data->bzstream.next_in = (void *) data->buffer; - data->bzstream.avail_in = 0; - - ret = BZ2_bzDecompressInit(&data->bzstream, 0, 0); - if (ret != BZ_OK) { - g_free(data); - - g_set_error(error_r, bz2_quark(), ret, - "BZ2_bzDecompressInit() has failed"); - return false; - } - - return true; -} - -static void -bz2_destroy(struct bz2_input_stream *data) -{ - BZ2_bzDecompressEnd(&data->bzstream); -} - -/* archive open && listing routine */ - -#if GCC_CHECK_VERSION(4, 2) -/* workaround for a warning caused by G_STATIC_MUTEX_INIT */ -#pragma GCC diagnostic ignored "-Wmissing-field-initializers" -#endif - -static struct archive_file * -bz2_open(const char *pathname, GError **error_r) -{ - struct bz2_archive_file *context; - int len; - - context = g_malloc(sizeof(*context)); - archive_file_init(&context->base, &bz2_archive_plugin); - refcount_init(&context->ref); - - //open archive - static GStaticMutex mutex = G_STATIC_MUTEX_INIT; - context->istream = input_stream_open(pathname, - g_static_mutex_get_mutex(&mutex), - NULL, - error_r); - if (context->istream == NULL) { - g_free(context); - return NULL; - } - - context->name = g_path_get_basename(pathname); - - //remove suffix - len = strlen(context->name); - if (len > 4) { - context->name[len - 4] = 0; //remove .bz2 suffix - } - - return &context->base; -} - -static void -bz2_scan_reset(struct archive_file *file) -{ - struct bz2_archive_file *context = (struct bz2_archive_file *) file; - context->reset = true; -} - -static char * -bz2_scan_next(struct archive_file *file) -{ - struct bz2_archive_file *context = (struct bz2_archive_file *) file; - char *name = NULL; - - if (context->reset) { - name = context->name; - context->reset = false; - } - - return name; -} - -static void -bz2_close(struct archive_file *file) -{ - struct bz2_archive_file *context = (struct bz2_archive_file *) file; - - if (!refcount_dec(&context->ref)) - return; - - g_free(context->name); - - input_stream_close(context->istream); - g_free(context); -} - -/* single archive handling */ - -static struct input_stream * -bz2_open_stream(struct archive_file *file, const char *path, - GMutex *mutex, GCond *cond, - GError **error_r) -{ - struct bz2_archive_file *context = (struct bz2_archive_file *) file; - struct bz2_input_stream *bis = g_new(struct bz2_input_stream, 1); - - input_stream_init(&bis->base, &bz2_inputplugin, path, - mutex, cond); - - bis->archive = context; - - bis->base.ready = true; - bis->base.seekable = false; - - if (!bz2_alloc(bis, error_r)) { - input_stream_deinit(&bis->base); - g_free(bis); - return NULL; - } - - bis->eof = false; - - refcount_inc(&context->ref); - - return &bis->base; -} - -static void -bz2_is_close(struct input_stream *is) -{ - struct bz2_input_stream *bis = (struct bz2_input_stream *)is; - - bz2_destroy(bis); - - bz2_close(&bis->archive->base); - - input_stream_deinit(&bis->base); - g_free(bis); -} - -static bool -bz2_fillbuffer(struct bz2_input_stream *bis, GError **error_r) -{ - size_t count; - bz_stream *bzstream; - - bzstream = &bis->bzstream; - - if (bzstream->avail_in > 0) - return true; - - count = input_stream_read(bis->archive->istream, - bis->buffer, sizeof(bis->buffer), - error_r); - if (count == 0) - return false; - - bzstream->next_in = bis->buffer; - bzstream->avail_in = count; - return true; -} - -static size_t -bz2_is_read(struct input_stream *is, void *ptr, size_t length, - GError **error_r) -{ - struct bz2_input_stream *bis = (struct bz2_input_stream *)is; - bz_stream *bzstream; - int bz_result; - size_t nbytes = 0; - - if (bis->eof) - return 0; - - bzstream = &bis->bzstream; - bzstream->next_out = ptr; - bzstream->avail_out = length; - - do { - if (!bz2_fillbuffer(bis, error_r)) - return 0; - - bz_result = BZ2_bzDecompress(bzstream); - - if (bz_result == BZ_STREAM_END) { - bis->eof = true; - break; - } - - if (bz_result != BZ_OK) { - g_set_error(error_r, bz2_quark(), bz_result, - "BZ2_bzDecompress() has failed"); - return 0; - } - } while (bzstream->avail_out == length); - - nbytes = length - bzstream->avail_out; - is->offset += nbytes; - - return nbytes; -} - -static bool -bz2_is_eof(struct input_stream *is) -{ - struct bz2_input_stream *bis = (struct bz2_input_stream *)is; - - return bis->eof; -} - -/* exported structures */ - -static const char *const bz2_extensions[] = { - "bz2", - NULL -}; - -static const struct input_plugin bz2_inputplugin = { - .close = bz2_is_close, - .read = bz2_is_read, - .eof = bz2_is_eof, -}; - -const struct archive_plugin bz2_archive_plugin = { - .name = "bz2", - .open = bz2_open, - .scan_reset = bz2_scan_reset, - .scan_next = bz2_scan_next, - .open_stream = bz2_open_stream, - .close = bz2_close, - .suffixes = bz2_extensions -}; - |