82cfce76eb
The open_stream() method opens the input_stream. This allows the archive plugin to do its own initialization, and it also allows it to use input_stream.data. We can remove input_stream.archive now, which was unnatural to have in the first place.
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/* the Music Player Daemon (MPD)
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* Copyright (C) 2008 Viliam Mateicka <viliam.mateicka@gmail.com>
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* This project's homepage is: http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "input_archive.h"
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#include "archive_api.h"
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#include "archive_list.h"
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#include "input_stream.h"
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#include <glib.h>
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/**
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* select correct archive plugin to handle the input stream
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* may allow stacking of archive plugins. for example for handling
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* tar.gz a gzip handler opens file (through inputfile stream)
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* then it opens a tar handler and sets gzip inputstream as
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* parent_stream so tar plugin fetches file data from gzip
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* plugin and gzip fetches file from disk
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*/
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static bool
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input_archive_open(struct input_stream *is, const char *pathname)
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{
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const struct archive_plugin *arplug;
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struct archive_file *file;
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char *archive, *filename, *suffix, *pname;
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bool opened;
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if (pathname[0] != '/')
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return false;
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pname = g_strdup(pathname);
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// archive_lookup will modify pname when true is returned
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if (!archive_lookup(pname, &archive, &filename, &suffix)) {
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g_debug("not an archive, lookup %s failed\n", pname);
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g_free(pname);
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return false;
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}
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//check which archive plugin to use (by ext)
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arplug = archive_plugin_from_suffix(suffix);
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if (!arplug) {
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g_warning("can't handle archive %s\n",archive);
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g_free(pname);
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return false;
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}
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file = arplug->open(archive);
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//setup fileops
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opened = arplug->open_stream(file, is, filename);
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if (!opened) {
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g_warning("open inarchive file %s failed\n\n",filename);
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} else {
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is->ready = true;
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}
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g_free(pname);
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return opened;
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}
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const struct input_plugin input_plugin_archive = {
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.open = input_archive_open,
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};
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