test_tar_filenames.c revision 228763 
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#include "test.h"
26__FBSDID("$FreeBSD: head/contrib/libarchive/libarchive/test/test_tar_filenames.c 228763 2011-12-21 11:13:29Z mm $");
27
28/*
29 * Exercise various lengths of filenames in tar archives,
30 * especially around the magic sizes where ustar breaks
31 * filenames into prefix/suffix.
32 */
33
34static void
35test_filename(const char *prefix, int dlen, int flen)
36{
37	char buff[8192];
38	char filename[400];
39	char dirname[400];
40	struct archive_entry *ae;
41	struct archive *a;
42	size_t used;
43	char *p;
44	int i;
45
46	p = filename;
47	if (prefix) {
48		strcpy(filename, prefix);
49		p += strlen(p);
50	}
51	if (dlen > 0) {
52		for (i = 0; i < dlen; i++)
53			*p++ = 'a';
54		*p++ = '/';
55	}
56	for (i = 0; i < flen; i++)
57		*p++ = 'b';
58	*p = '\0';
59
60	strcpy(dirname, filename);
61
62	/* Create a new archive in memory. */
63	assert((a = archive_write_new()) != NULL);
64	assertA(0 == archive_write_set_format_pax_restricted(a));
65	assertA(0 == archive_write_set_compression_none(a));
66	assertA(0 == archive_write_set_bytes_per_block(a,0));
67	assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
68
69	/*
70	 * Write a file to it.
71	 */
72	assert((ae = archive_entry_new()) != NULL);
73	archive_entry_copy_pathname(ae, filename);
74	archive_entry_set_mode(ae, S_IFREG | 0755);
75	failure("Pathname %d/%d", dlen, flen);
76	assertA(0 == archive_write_header(a, ae));
77	archive_entry_free(ae);
78
79	/*
80	 * Write a dir to it (without trailing '/').
81	 */
82	assert((ae = archive_entry_new()) != NULL);
83	archive_entry_copy_pathname(ae, dirname);
84	archive_entry_set_mode(ae, S_IFDIR | 0755);
85	failure("Dirname %d/%d", dlen, flen);
86	assertA(0 == archive_write_header(a, ae));
87	archive_entry_free(ae);
88
89	/* Tar adds a '/' to directory names. */
90	strcat(dirname, "/");
91
92	/*
93	 * Write a dir to it (with trailing '/').
94	 */
95	assert((ae = archive_entry_new()) != NULL);
96	archive_entry_copy_pathname(ae, dirname);
97	archive_entry_set_mode(ae, S_IFDIR | 0755);
98	failure("Dirname %d/%d", dlen, flen);
99	assertA(0 == archive_write_header(a, ae));
100	archive_entry_free(ae);
101
102	/* Close out the archive. */
103	assertA(0 == archive_write_close(a));
104#if ARCHIVE_VERSION_NUMBER < 2000000
105	archive_write_finish(a);
106#else
107	assertA(0 == archive_write_finish(a));
108#endif
109
110	/*
111	 * Now, read the data back.
112	 */
113	assert((a = archive_read_new()) != NULL);
114	assertA(0 == archive_read_support_format_all(a));
115	assertA(0 == archive_read_support_compression_all(a));
116	assertA(0 == archive_read_open_memory(a, buff, used));
117
118	/* Read the file and check the filename. */
119	assertA(0 == archive_read_next_header(a, &ae));
120#if ARCHIVE_VERSION_NUMBER < 1009000
121	skipping("Leading '/' preserved on long filenames");
122#else
123	assertEqualString(filename, archive_entry_pathname(ae));
124#endif
125	assertEqualInt((S_IFREG | 0755), archive_entry_mode(ae));
126
127	/*
128	 * Read the two dirs and check the names.
129	 *
130	 * Both dirs should read back with the same name, since
131	 * tar should add a trailing '/' to any dir that doesn't
132	 * already have one.  We only report the first such failure
133	 * here.
134	 */
135	assertA(0 == archive_read_next_header(a, &ae));
136#if ARCHIVE_VERSION_NUMBER < 1009000
137	skipping("Trailing '/' preserved on dirnames");
138#else
139	assertEqualString(dirname, archive_entry_pathname(ae));
140#endif
141	assert((S_IFDIR | 0755) == archive_entry_mode(ae));
142
143	assertA(0 == archive_read_next_header(a, &ae));
144#if ARCHIVE_VERSION_NUMBER < 1009000
145	skipping("Trailing '/' added to dir names");
146#else
147	assertEqualString(dirname, archive_entry_pathname(ae));
148#endif
149	assert((S_IFDIR | 0755) == archive_entry_mode(ae));
150
151	/* Verify the end of the archive. */
152	assert(1 == archive_read_next_header(a, &ae));
153	assert(0 == archive_read_close(a));
154#if ARCHIVE_VERSION_NUMBER < 2000000
155	archive_read_finish(a);
156#else
157	assert(0 == archive_read_finish(a));
158#endif
159}
160
161DEFINE_TEST(test_tar_filenames)
162{
163	int dlen, flen;
164
165	/* Repeat the following for a variety of dir/file lengths. */
166	for (dlen = 45; dlen < 55; dlen++) {
167		for (flen = 45; flen < 55; flen++) {
168			test_filename(NULL, dlen, flen);
169			test_filename("/", dlen, flen);
170		}
171	}
172
173	for (dlen = 0; dlen < 140; dlen += 10) {
174		for (flen = 98; flen < 102; flen++) {
175			test_filename(NULL, dlen, flen);
176			test_filename("/", dlen, flen);
177		}
178	}
179
180	for (dlen = 140; dlen < 160; dlen++) {
181		for (flen = 95; flen < 105; flen++) {
182			test_filename(NULL, dlen, flen);
183			test_filename("/", dlen, flen);
184		}
185	}
186}
187