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