test_read_truncated_filter.c revision 232153 
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__FBSDID("$FreeBSD$");
29
30/*
31 * Check that we generate an error message when reading a truncated
32 * gzip, bzip2, compress, xz, lzma, or lzip file.
33 */
34
35static void
36test_truncation(const char *compression, int (*set_compression)(struct archive *))
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, j, r;
44
45	buffsize = 2000000;
46	assert(NULL != (buff = (char *)malloc(buffsize)));
47
48	datasize = 10000;
49	assert(NULL != (data = (char *)malloc(datasize)));
50	memset(data, 0, datasize);
51
52	/*
53	 * Write a bunch of files with semi-random data.
54	 */
55	assert((a = archive_write_new()) != NULL);
56	assertEqualIntA(a, ARCHIVE_OK, archive_write_set_format_ustar(a));
57	assertEqualIntA(a, ARCHIVE_OK,
58	    archive_write_set_compression_compress(a));
59	r = (*set_compression)(a);
60	if (r == ARCHIVE_FATAL) {
61		skipping("%s writing not supported on this platform", compression);
62		assertEqualInt(ARCHIVE_OK, archive_write_free(a));
63		return;
64	}
65	assertEqualIntA(a, ARCHIVE_OK,
66	    archive_write_set_bytes_per_block(a, 10));
67	assertEqualIntA(a, ARCHIVE_OK, archive_write_open_memory(a, buff, buffsize, &used1));
68	assert((ae = archive_entry_new()) != NULL);
69	archive_entry_set_filetype(ae, AE_IFREG);
70	archive_entry_set_size(ae, datasize);
71	for (i = 0; i < 100; i++) {
72		sprintf(path, "%s%d", compression, i);
73		archive_entry_copy_pathname(ae, path);
74		failure(path);
75		if (!assertEqualIntA(a, ARCHIVE_OK, archive_write_header(a, ae))) {
76			archive_write_free(a);
77			free(data);
78			free(buff);
79			return;
80		}
81		for (j = 0; j < (int)datasize; ++j) {
82			data[j] = (char)(rand() % 256);
83		}
84		failure(path);
85		if (!assertEqualIntA(a, datasize, archive_write_data(a, data, datasize))) {
86			archive_write_free(a);
87			free(data);
88			free(buff);
89			return;
90		}
91	}
92	archive_entry_free(ae);
93	assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
94	assertEqualInt(ARCHIVE_OK, archive_write_free(a));
95
96	assert((a = archive_read_new()) != NULL);
97	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
98	assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_all(a));
99
100	assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, buff, used1 - used1/64));
101	for (i = 0; i < 100; i++) {
102		if (ARCHIVE_OK != archive_read_next_header(a, &ae)) {
103			failure("Should have non-NULL error message for %s",
104			    compression);
105			assert(NULL != archive_error_string(a));
106			break;
107		}
108		sprintf(path, "%s%d", compression, i);
109		assertEqualString(path, archive_entry_pathname(ae));
110		if (datasize != (size_t)archive_read_data(a, data, datasize)) {
111			failure("Should have non-NULL error message for %s",
112			    compression);
113			assert(NULL != archive_error_string(a));
114			break;
115		}
116	}
117	assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
118	assertEqualInt(ARCHIVE_OK, archive_read_free(a));
119
120	free(data);
121	free(buff);
122}
123
124DEFINE_TEST(test_read_truncated_filter)
125{
126	test_truncation("bzip2", archive_write_set_compression_bzip2);
127	test_truncation("compress", archive_write_set_compression_compress);
128	test_truncation("gzip", archive_write_set_compression_gzip);
129	test_truncation("lzip", archive_write_set_compression_lzip);
130	test_truncation("lzma", archive_write_set_compression_lzma);
131	test_truncation("xz", archive_write_set_compression_xz);
132}
133