1 /*-
2  * Copyright (c) 2017 Sean Purcell
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 /*
27  * Verify our ability to read sample files compatibly with 'zstd -d'.
28  *
29  * In particular:
30  *  * zstd -d will read multiple zstd streams, concatenating the output
31  *  * zstd -d will skip over zstd skippable frames
32  */
33 
34 static void
35 compat_zstd(const char *name)
36 {
37 	const char *n[7] = { "f1", "f2", "f3", "d1/f1", "d1/f2", "d1/f3", NULL };
38 	struct archive_entry *ae;
39 	struct archive *a;
40 	int i, r;
41 
42 	assert((a = archive_read_new()) != NULL);
43 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
44 	r = archive_read_support_filter_zstd(a);
45 	if (r == ARCHIVE_WARN) {
46 		skipping("zstd reading not fully supported on this platform");
47 		assertEqualInt(ARCHIVE_OK, archive_read_free(a));
48 		return;
49 	}
50 	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
51 	extract_reference_file(name);
52 	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, name, 2));
53 
54 	/* Read entries, match up names with list above. */
55 	for (i = 0; i < 6; ++i) {
56 		failure("Could not read file %d (%s) from %s", i, n[i], name);
57 		assertEqualIntA(a, ARCHIVE_OK,
58 		    archive_read_next_header(a, &ae));
59 		assertEqualString(n[i], archive_entry_pathname(ae));
60 	}
61 
62 	/* Verify the end-of-archive. */
63 	assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
64 
65 	/* Verify that the format detection worked. */
66 	assertEqualInt(archive_filter_code(a, 0), ARCHIVE_FILTER_ZSTD);
67 	assertEqualString(archive_filter_name(a, 0), "zstd");
68 	assertEqualInt(archive_format(a), ARCHIVE_FORMAT_TAR_USTAR);
69 
70 	assertEqualInt(ARCHIVE_OK, archive_read_close(a));
71 	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
72 }
73 
74 
75 DEFINE_TEST(test_compat_zstd)
76 {
77 	/* This sample was compressed as 3 separate streams with a zstd skippable
78 	* frame placed in the middle */
79 	compat_zstd("test_compat_zstd_1.tar.zst");
80 
81 	/* The same sample compressed with pzstd */
82 	compat_zstd("test_compat_zstd_2.tar.zst");
83 }
84