xref: /freebsd/contrib/libarchive/libarchive/test/test_write_open_memory.c (revision e9b411d273336647e61704213964b995952a44fd)
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. */
28 static unsigned char buff[16384];
29 
30 DEFINE_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