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/*
* 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.
*/
#include "config.h"
#include "input/archive_input_plugin.h"
#include "archive_api.h"
#include "archive_list.h"
#include "input_plugin.h"
#include <glib.h>
/**
* select correct archive plugin to handle the input stream
* may allow stacking of archive plugins. for example for handling
* tar.gz a gzip handler opens file (through inputfile stream)
* then it opens a tar handler and sets gzip inputstream as
* parent_stream so tar plugin fetches file data from gzip
* plugin and gzip fetches file from disk
*/
static struct input_stream *
input_archive_open(const char *pathname,
GMutex *mutex, GCond *cond,
GError **error_r)
{
const struct archive_plugin *arplug;
struct archive_file *file;
char *archive, *filename, *suffix, *pname;
struct input_stream *is;
if (!g_path_is_absolute(pathname))
return NULL;
pname = g_strdup(pathname);
// archive_lookup will modify pname when true is returned
if (!archive_lookup(pname, &archive, &filename, &suffix)) {
g_debug("not an archive, lookup %s failed\n", pname);
g_free(pname);
return NULL;
}
//check which archive plugin to use (by ext)
arplug = archive_plugin_from_suffix(suffix);
if (!arplug) {
g_warning("can't handle archive %s\n",archive);
g_free(pname);
return NULL;
}
file = archive_file_open(arplug, archive, error_r);
if (file == NULL) {
g_free(pname);
return NULL;
}
//setup fileops
is = archive_file_open_stream(file, filename, mutex, cond,
error_r);
archive_file_close(file);
g_free(pname);
return is;
}
const struct input_plugin input_plugin_archive = {
.name = "archive",
.open = input_archive_open,
};
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