xref: /freebsd/contrib/libarchive/libarchive/test/test_compat_gzip.c (revision f078c492a9b57877c723586db26d789cda1b98ea)
1 /*-
2  * Copyright (c) 2003-2008 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 #include "test.h"
26 __FBSDID("$FreeBSD$");
27 
28 /*
29  * Verify our ability to read sample files compatibly with gunzip.
30  *
31  * In particular:
32  *  * gunzip will read multiple gzip streams, concatenating the output
33  *  * gunzip will stop at the end of a stream if the following data
34  *    doesn't start with a gzip signature.
35  */
36 
37 /*
38  * All of the sample files have the same contents; they're just
39  * compressed in different ways.
40  */
41 static void
42 verify(const char *name)
43 {
44 	const char *n[7] = { "f1", "f2", "f3", "d1/f1", "d1/f2", "d1/f3", NULL };
45 	struct archive_entry *ae;
46 	struct archive *a;
47 	int i,r;
48 
49 	assert((a = archive_read_new()) != NULL);
50 	r = archive_read_support_filter_gzip(a);
51 	if (r == ARCHIVE_WARN) {
52 		skipping("gzip reading not fully supported on this platform");
53 		assertEqualInt(ARCHIVE_OK, archive_read_free(a));
54 		return;
55 	}
56 	assertEqualIntA(a, ARCHIVE_OK, r);
57 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
58 	extract_reference_file(name);
59 	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, name, 200));
60 
61 	/* Read entries, match up names with list above. */
62 	for (i = 0; i < 6; ++i) {
63 		failure("Could not read file %d (%s) from %s", i, n[i], name);
64 		assertEqualIntA(a, ARCHIVE_OK,
65 		    archive_read_next_header(a, &ae));
66 		if (r != ARCHIVE_OK) {
67 			archive_read_free(a);
68 			return;
69 		}
70 		assertEqualString(n[i], archive_entry_pathname(ae));
71 	}
72 
73 	/* Verify the end-of-archive. */
74 	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
75 
76 	/* Verify that the format detection worked. */
77 	assertEqualInt(archive_filter_code(a, 0), ARCHIVE_FILTER_GZIP);
78 	assertEqualString(archive_filter_name(a, 0), "gzip");
79 	assertEqualInt(archive_format(a), ARCHIVE_FORMAT_TAR_USTAR);
80 
81 	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
82 	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
83 }
84 
85 
86 DEFINE_TEST(test_compat_gzip)
87 {
88 	/* This sample has been 'split', each piece compressed separately,
89 	 * then concatenated.  Gunzip will emit the concatenated result. */
90 	/* Not supported in libarchive 2.6 and earlier */
91 	verify("test_compat_gzip_1.tgz");
92 	/* This sample has been compressed as a single stream, but then
93 	 * some unrelated garbage text has been appended to the end. */
94 	verify("test_compat_gzip_2.tgz");
95 }
96 
97 
98