xref: /minix3/external/bsd/libarchive/dist/libarchive/archive_read_support_compression_all.c (revision 543adbed3a3a783ed36434adafbc258b6bde442d)
1 /*-
2  * Copyright (c) 2003-2007 Tim Kientzle
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17  * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #include "archive_platform.h"
27 __FBSDID("$FreeBSD: head/lib/libarchive/archive_read_support_compression_all.c 201248 2009-12-30 06:12:03Z kientzle $");
28 
29 #include "archive.h"
30 
31 int
archive_read_support_compression_all(struct archive * a)32 archive_read_support_compression_all(struct archive *a)
33 {
34 	/* Bzip falls back to "bunzip2" command-line */
35 	archive_read_support_compression_bzip2(a);
36 	/* The decompress code doesn't use an outside library. */
37 	archive_read_support_compression_compress(a);
38 	/* Gzip decompress falls back to "gunzip" command-line. */
39 	archive_read_support_compression_gzip(a);
40 	/* The LZMA file format has a very weak signature, so it
41 	 * may not be feasible to keep this here, but we'll try.
42 	 * This will come back out if there are problems. */
43 	/* Lzma falls back to "unlzma" command-line program. */
44 	archive_read_support_compression_lzma(a);
45 	/* Xz falls back to "unxz" command-line program. */
46 	archive_read_support_compression_xz(a);
47 	/* The decode code doesn't use an outside library. */
48 	archive_read_support_compression_uu(a);
49 	/* The decode code doesn't use an outside library. */
50 	archive_read_support_compression_rpm(a);
51 
52 	/* Note: We always return ARCHIVE_OK here, even if some of the
53 	 * above return ARCHIVE_WARN.  The intent here is to enable
54 	 * "as much as possible."  Clients who need specific
55 	 * compression should enable those individually so they can
56 	 * verify the level of support. */
57 	/* Clear any warning messages set by the above functions. */
58 	archive_clear_error(a);
59 	return (ARCHIVE_OK);
60 }
61