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author | Max Kellermann <max@duempel.org> | 2014-01-24 16:18:21 +0100 |
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committer | Max Kellermann <max@duempel.org> | 2014-01-24 16:33:33 +0100 |
commit | f8bfea8bae44134e8002db869fd4ec137d1c0d6e (patch) | |
tree | d370391baccbbc4c23306656aec3751a7ffc95ae /src/input/plugins/ArchiveInputPlugin.cxx | |
parent | e199c33c6e9eb2f1aa588073f49f44de274985d5 (diff) | |
download | mpd-f8bfea8bae44134e8002db869fd4ec137d1c0d6e.tar.gz mpd-f8bfea8bae44134e8002db869fd4ec137d1c0d6e.tar.xz mpd-f8bfea8bae44134e8002db869fd4ec137d1c0d6e.zip |
Input*: move to input/
Diffstat (limited to 'src/input/plugins/ArchiveInputPlugin.cxx')
-rw-r--r-- | src/input/plugins/ArchiveInputPlugin.cxx | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/src/input/plugins/ArchiveInputPlugin.cxx b/src/input/plugins/ArchiveInputPlugin.cxx new file mode 100644 index 000000000..df1a72585 --- /dev/null +++ b/src/input/plugins/ArchiveInputPlugin.cxx @@ -0,0 +1,99 @@ +/* + * Copyright (C) 2003-2014 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 "ArchiveInputPlugin.hxx" +#include "archive/ArchiveDomain.hxx" +#include "archive/ArchiveLookup.hxx" +#include "archive/ArchiveList.hxx" +#include "archive/ArchivePlugin.hxx" +#include "archive/ArchiveFile.hxx" +#include "../InputPlugin.hxx" +#include "fs/Traits.hxx" +#include "util/Alloc.hxx" +#include "Log.hxx" + +#include <stdlib.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 InputStream * +input_archive_open(const char *pathname, + Mutex &mutex, Cond &cond, + Error &error) +{ + const struct archive_plugin *arplug; + InputStream *is; + + if (!PathTraitsFS::IsAbsolute(pathname)) + return nullptr; + + char *pname = strdup(pathname); + // archive_lookup will modify pname when true is returned + const char *archive, *filename, *suffix; + if (!archive_lookup(pname, &archive, &filename, &suffix)) { + FormatDebug(archive_domain, + "not an archive, lookup %s failed", pname); + free(pname); + return nullptr; + } + + //check which archive plugin to use (by ext) + arplug = archive_plugin_from_suffix(suffix); + if (!arplug) { + FormatWarning(archive_domain, + "can't handle archive %s", archive); + free(pname); + return nullptr; + } + + auto file = archive_file_open(arplug, archive, error); + if (file == nullptr) { + free(pname); + return nullptr; + } + + //setup fileops + is = file->OpenStream(filename, mutex, cond, error); + free(pname); + file->Close(); + + return is; +} + +const InputPlugin input_plugin_archive = { + "archive", + nullptr, + nullptr, + input_archive_open, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, + nullptr, +}; |