1/*-
2 * Copyright (c) 2007-2010 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 *    in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "test.h"
28
29/*
30 * Check that we generate an error message when reading a truncated
31 * gzip, bzip2, compress, xz, lzma, or lzip file.
32 */
33
34static void
35test_truncation(const char *compression,
36    int (*set_compression)(struct archive *), int can_prog)
37{
38	struct archive_entry *ae;
39	struct archive* a;
40	char path[16];
41	char *buff, *data;
42	size_t buffsize, datasize, used1;
43	int i, r, use_prog;
44
45	buffsize = 2000000;
46	assert(NULL != (buff = (char *)malloc(buffsize)));
47	if (buff == NULL)
48		return;
49
50	datasize = 10000;
51	assert(NULL != (data = (char *)malloc(datasize)));
52	if (data == NULL) {
53		free(buff);
54		return;
55	}
56	memset(data, 0, datasize);
57
58	/*
59	 * Write a bunch of files with semi-random data.
60	 */
61	assert((a = archive_write_new()) != NULL);
62	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a));
63	assertEqualIntA(a, ARCHIVE_OK,
64	    archive_write_add_filter_compress(a));
65	r = (*set_compression)(a);
66	if (r != ARCHIVE_OK && !can_prog) {
67		skipping("%s writing not supported on this platform",
68		    compression);
69		assertEqualInt(ARCHIVE_OK, archive_write_free(a));
70		free(buff);
71		free(data);
72		return;
73	}
74	use_prog = (r == ARCHIVE_WARN && can_prog);
75	assertEqualIntA(a, ARCHIVE_OK,
76	    archive_write_set_bytes_per_block(a, 10));
77	assertEqualIntA(a, ARCHIVE_OK,
78	    archive_write_open_memory(a, buff, buffsize, &used1));
79	assert((ae = archive_entry_new()) != NULL);
80	archive_entry_set_filetype(ae, AE_IFREG);
81	archive_entry_set_size(ae, datasize);
82	for (i = 0; i < 100; i++) {
83		snprintf(path, sizeof(path), "%s%d", compression, i);
84		archive_entry_copy_pathname(ae, path);
85		failure("%s", path);
86		if (!assertEqualIntA(a, ARCHIVE_OK,
87		    archive_write_header(a, ae))) {
88			archive_write_free(a);
89			free(data);
90			free(buff);
91			return;
92		}
93		fill_with_pseudorandom_data(data, datasize);
94		failure("%s", path);
95		if (!assertEqualIntA(a, datasize,
96		    archive_write_data(a, data, datasize))) {
97			archive_write_free(a);
98			free(data);
99			free(buff);
100			return;
101		}
102	}
103	archive_entry_free(ae);
104	assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
105	assertEqualInt(ARCHIVE_OK, archive_write_free(a));
106
107	assert((a = archive_read_new()) != NULL);
108	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
109	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
110
111	r = archive_read_open_memory(a, buff, used1 - used1/64);
112	if (r != ARCHIVE_OK) {
113		assertEqualStringA(a, "truncated bzip2 input",
114		    archive_error_string(a));
115		    goto out;
116	}
117
118	for (i = 0; i < 100; i++) {
119		if (ARCHIVE_OK != archive_read_next_header(a, &ae)) {
120			failure("Should have non-NULL error message for %s",
121			    compression);
122			assert(NULL != archive_error_string(a));
123			break;
124		}
125		snprintf(path, sizeof(path), "%s%d", compression, i);
126		assertEqualString(path, archive_entry_pathname(ae));
127		if (datasize != (size_t)archive_read_data(a, data, datasize)) {
128			failure("Should have non-NULL error message for %s",
129			    compression);
130			assert(NULL != archive_error_string(a));
131			break;
132		}
133	}
134	assertEqualIntA(a, (use_prog)?ARCHIVE_WARN:ARCHIVE_OK,
135	    archive_read_close(a));
136	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
137
138out:
139	free(data);
140	free(buff);
141}
142
143DEFINE_TEST(test_read_truncated_filter_bzip2)
144{
145	test_truncation("bzip2", archive_write_add_filter_bzip2, canBzip2());
146}
147
148DEFINE_TEST(test_read_truncated_filter_compress)
149{
150	test_truncation("compress", archive_write_add_filter_compress, 0);
151}
152
153DEFINE_TEST(test_read_truncated_filter_gzip)
154{
155	test_truncation("gzip", archive_write_add_filter_gzip, canGzip());
156}
157
158DEFINE_TEST(test_read_truncated_filter_lzip)
159{
160	test_truncation("lzip", archive_write_add_filter_lzip, canLzip());
161}
162
163DEFINE_TEST(test_read_truncated_filter_lzma)
164{
165	test_truncation("lzma", archive_write_add_filter_lzma, canLzma());
166}
167
168DEFINE_TEST(test_read_truncated_filter_lzop)
169{
170	test_truncation("lzop", archive_write_add_filter_lzop, canLzop());
171}
172
173DEFINE_TEST(test_read_truncated_filter_xz)
174{
175	test_truncation("xz", archive_write_add_filter_xz, canXz());
176}
177