diff options
Diffstat (limited to '')
| -rw-r--r-- | src/Makefile.am | 4 | ||||
| -rw-r--r-- | src/archive/iso_plugin.c | 258 | ||||
| -rw-r--r-- | src/archive_list.c | 4 |
3 files changed, 266 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am index 3408ef723..0ec95ee82 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -183,6 +183,10 @@ if HAVE_ZIP mpd_SOURCES += archive/zip_plugin.c endif +if HAVE_ISO +mpd_SOURCES += archive/iso_plugin.c +endif + # decoder plugins if HAVE_MAD diff --git a/src/archive/iso_plugin.c b/src/archive/iso_plugin.c new file mode 100644 index 000000000..b374b9dfe --- /dev/null +++ b/src/archive/iso_plugin.c @@ -0,0 +1,258 @@ +/* the Music Player Daemon (MPD) + * Copyright (C) 2008 Viliam Mateicka <viliam.mateicka@gmail.com> + * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +/** + * iso archive handling (requires cdio, and iso9660) + */ + +#include "archive_api.h" +#include "input_stream.h" +#include "utils.h" + +#include <cdio/cdio.h> +#include <cdio/iso9660.h> + +#include <glib.h> +#include <string.h> + +#define CEILING(x, y) ((x+(y-1))/y) + +typedef struct { + iso9660_t *iso; + iso9660_stat_t *statbuf; + size_t cur_ofs; + size_t max_blocks; + GSList *list; + GSList *iter; +} iso_context; + +static const struct input_plugin iso_inputplugin; + +/* archive open && listing routine */ + +static void +listdir_recur(const char *psz_path, iso_context *context) +{ + iso9660_t *iso = context->iso; + CdioList_t *entlist; + CdioListNode_t *entnode; + iso9660_stat_t *statbuf; + char pathname[4096]; + + entlist = iso9660_ifs_readdir (iso, psz_path); + if (!entlist) { + return; + } + /* Iterate over the list of nodes that iso9660_ifs_readdir gives */ + _CDIO_LIST_FOREACH (entnode, entlist) { + statbuf = (iso9660_stat_t *) _cdio_list_node_data (entnode); + + strcpy(pathname, psz_path); + strcat(pathname, statbuf->filename); + + if (_STAT_DIR == statbuf->type ) { + if (strcmp(statbuf->filename, ".") && strcmp(statbuf->filename, "..")) { + strcat(pathname, "/"); + listdir_recur(pathname, context); + } + } else { + //remove leading / + context->list = g_slist_prepend( context->list, + xstrdup(pathname+1)); + } + } + _cdio_list_free (entlist, true); +} + +static struct archive_file * +iso_open(char * pathname) +{ + iso_context *context = g_malloc(sizeof(iso_context)); + + context->list = NULL; + + /* open archive */ + context->iso = iso9660_open (pathname); + if (context->iso == NULL) { + g_warning("iso %s open failed\n", pathname); + return NULL; + } + + listdir_recur("/", context); + + return (struct archive_file *)context; +} + +static void +iso_scan_reset(struct archive_file *file) +{ + iso_context *context = (iso_context *) file; + //reset iterator + context->iter = context->list; +} + +static char * +iso_scan_next(struct archive_file *file) +{ + iso_context *context = (iso_context *) file; + char *data = NULL; + if (context->iter != NULL) { + ///fetch data and goto next + data = context->iter->data; + context->iter = g_slist_next(context->iter); + } + return data; +} + +static void +iso_close(struct archive_file *file) +{ + iso_context *context = (iso_context *) file; + GSList *tmp; + if (context->list) { + //free list + for (tmp = context->list; tmp != NULL; tmp = g_slist_next(tmp)) + g_free(tmp->data); + g_slist_free(context->list); + } + //close archive + iso9660_close(context->iso); + context->iso = NULL; +} + +/* single archive handling */ + +static void +iso_setup_stream(struct archive_file *file, struct input_stream *is) +{ + iso_context *context = (iso_context *) file; + //setup file ops + is->plugin = &iso_inputplugin; + //insert back reference + is->archive = context; + //we are not seekable + is->seekable = false; +} + + +static bool +iso_is_open(struct input_stream *is, const char *pathname) +{ + iso_context *context = (iso_context *) is->archive; + + context->statbuf = iso9660_ifs_stat_translate (context->iso, pathname); + + if (context->statbuf == NULL) { + g_warning("file %s not found in iso\n", pathname); + return false; + } + context->cur_ofs = 0; + context->max_blocks = CEILING(context->statbuf->size, ISO_BLOCKSIZE); + return true; +} + +static void +iso_is_close(struct input_stream *is) +{ + iso_context *context = (iso_context *) is->archive; + g_free(context->statbuf); +} + + +static size_t +iso_is_read(struct input_stream *is, void *ptr, size_t size) +{ + iso_context *context = (iso_context *) is->archive; + int toread, readed = 0; + int no_blocks, cur_block; + size_t left_bytes = context->statbuf->size - context->cur_ofs; + + size = (size * ISO_BLOCKSIZE) / ISO_BLOCKSIZE; + + if (left_bytes < size) { + toread = left_bytes; + no_blocks = CEILING(left_bytes,ISO_BLOCKSIZE); + } else { + toread = size; + no_blocks = toread / ISO_BLOCKSIZE; + } + if (no_blocks > 0) { + + cur_block = context->cur_ofs / ISO_BLOCKSIZE; + + readed = iso9660_iso_seek_read (context->iso, ptr, + context->statbuf->lsn + cur_block, no_blocks); + + if (readed != no_blocks * ISO_BLOCKSIZE) { + g_warning("error reading ISO file at lsn %lu\n", + (long unsigned int) cur_block ); + return -1; + } + if (left_bytes < size) { + readed = left_bytes; + } + context->cur_ofs += readed; + } + return readed; +} + +static bool +iso_is_eof(struct input_stream *is) +{ + iso_context *context = (iso_context *) is->archive; + return (context->cur_ofs == context->statbuf->size); +} + +static bool +iso_is_seek(G_GNUC_UNUSED struct input_stream *is, + G_GNUC_UNUSED off_t offset, G_GNUC_UNUSED int whence) +{ + return false; +} + +static int +iso_is_buffer(G_GNUC_UNUSED struct input_stream *is) +{ + return 0; +} + +/* exported structures */ + +static const char *const iso_extensions[] = { + "iso", + NULL +}; + +static const struct input_plugin iso_inputplugin = { + .open = iso_is_open, + .close = iso_is_close, + .read = iso_is_read, + .eof = iso_is_eof, + .seek = iso_is_seek, + .buffer = iso_is_buffer +}; + +const struct archive_plugin iso_plugin = { + .name = "iso", + .open = iso_open, + .scan_reset = iso_scan_reset, + .scan_next = iso_scan_next, + .setup_stream = iso_setup_stream, + .close = iso_close, + .suffixes = iso_extensions +}; diff --git a/src/archive_list.c b/src/archive_list.c index 9f0dca6a9..046c6dbe4 100644 --- a/src/archive_list.c +++ b/src/archive_list.c @@ -29,6 +29,7 @@ extern const struct archive_plugin bz2_plugin; extern const struct archive_plugin zip_plugin; +extern const struct archive_plugin iso_plugin; static const struct archive_plugin *const archive_plugins[] = { #ifdef HAVE_BZ2 @@ -37,6 +38,9 @@ static const struct archive_plugin *const archive_plugins[] = { #ifdef HAVE_ZIP &zip_plugin, #endif +#ifdef HAVE_ISO + &iso_plugin, +#endif NULL }; |