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: releng/10.3/contrib/libarchive/libarchive/test/test_write_open_memory.c 248616 2013-03-22 13:36:03Z mm $");
27
28/* Try to force archive_write_open_memory.c to write past the end of an array. */
29static unsigned char buff[16384];
30
31DEFINE_TEST(test_write_open_memory)
32{
33	unsigned int i;
34	struct archive *a;
35	struct archive_entry *ae;
36	const char *name="/tmp/test";
37
38	/* Create a simple archive_entry. */
39	assert((ae = archive_entry_new()) != NULL);
40	archive_entry_set_pathname(ae, name);
41	archive_entry_set_mode(ae, S_IFREG);
42	assertEqualString(archive_entry_pathname(ae), name);
43
44	/* Try writing with different buffer sizes. */
45	/* Make sure that we get failure on too-small buffers, success on
46	 * large enough ones. */
47	for (i = 100; i < 1600; i++) {
48		size_t used;
49		size_t blocksize = 94;
50		assert((a = archive_write_new()) != NULL);
51		assertEqualIntA(a, ARCHIVE_OK,
52		    archive_write_set_format_ustar(a));
53		assertEqualIntA(a, ARCHIVE_OK,
54		    archive_write_set_bytes_in_last_block(a, 1));
55		assertEqualIntA(a, ARCHIVE_OK,
56		    archive_write_set_bytes_per_block(a, (int)blocksize));
57		buff[i] = 0xAE;
58		assertEqualIntA(a, ARCHIVE_OK,
59		    archive_write_open_memory(a, buff, i, &used));
60		/* If buffer is smaller than a tar header, this should fail. */
61		if (i < (511/blocksize)*blocksize)
62			assertEqualIntA(a, ARCHIVE_FATAL,
63			    archive_write_header(a,ae));
64		else
65			assertEqualIntA(a, ARCHIVE_OK,
66			    archive_write_header(a, ae));
67		/* If buffer is smaller than a tar header plus 1024 byte
68		 * end-of-archive marker, then this should fail. */
69		failure("buffer size=%d\n", (int)i);
70		if (i < 1536)
71			assertEqualIntA(a, ARCHIVE_FATAL,
72			    archive_write_close(a));
73		else {
74			assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
75			assertEqualInt(used, archive_filter_bytes(a, -1));
76			assertEqualInt(archive_filter_bytes(a, -1),
77			    archive_filter_bytes(a, 0));
78		}
79		assertEqualInt(ARCHIVE_OK, archive_write_free(a));
80		assertEqualInt(buff[i], 0xAE);
81		assert(used <= i);
82	}
83	archive_entry_free(ae);
84}
85