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 static unsigned char nulls[1000];
28 static unsigned char tmp[1000];
29 static unsigned char buff[10000];
30 size_t data_sizes[] = {0, 5, 511, 512, 513};
31
32 static void verify_read_positions(struct archive *a);
33
34 static void
verify_read_positions(struct archive * a)35 verify_read_positions(struct archive *a)
36 {
37 struct archive_entry *ae;
38 intmax_t read_position = 0;
39 size_t j;
40
41 /* Initial header position is zero. */
42 assert(read_position == (intmax_t)archive_read_header_position(a));
43 for (j = 0; j < sizeof(data_sizes)/sizeof(data_sizes[0]); ++j) {
44 assertA(0 == archive_read_next_header(a, &ae));
45 assertEqualInt(read_position,
46 (intmax_t)archive_read_header_position(a));
47 /* Every other entry: read, then skip */
48 if (j & 1)
49 assertEqualInt(1,
50 archive_read_data(a, tmp, 1));
51 assertA(0 == archive_read_data_skip(a));
52 /* read_data_skip() doesn't change header_position */
53 assertEqualInt(read_position,
54 (intmax_t)archive_read_header_position(a));
55
56 read_position += 512; /* Size of header. */
57 read_position += (data_sizes[j] + 511) & ~511;
58 }
59
60 assertA(1 == archive_read_next_header(a, &ae));
61 assertEqualInt(read_position, (intmax_t)archive_read_header_position(a));
62 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
63 assertEqualInt(read_position, (intmax_t)archive_read_header_position(a));
64 }
65
66 /* Check that header_position tracks correctly on read. */
DEFINE_TEST(test_read_position)67 DEFINE_TEST(test_read_position)
68 {
69 struct archive *a;
70 struct archive_entry *ae;
71 size_t write_pos;
72 size_t i;
73
74 /* Sanity test */
75 assert(sizeof(nulls) + 512 + 1024 <= sizeof(buff));
76
77 /* Create an archive. */
78 assert(NULL != (a = archive_write_new()));
79 assertA(0 == archive_write_set_format_pax_restricted(a));
80 assertA(0 == archive_write_set_bytes_per_block(a, 512));
81 assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &write_pos));
82
83 for (i = 0; i < sizeof(data_sizes)/sizeof(data_sizes[0]); ++i) {
84 /* Create a simple archive_entry. */
85 assert((ae = archive_entry_new()) != NULL);
86 archive_entry_set_pathname(ae, "testfile");
87 archive_entry_set_mode(ae, S_IFREG);
88 archive_entry_set_size(ae, data_sizes[i]);
89 assertA(0 == archive_write_header(a, ae));
90 archive_entry_free(ae);
91 assertA(data_sizes[i]
92 == (size_t)archive_write_data(a, nulls, sizeof(nulls)));
93 }
94 assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
95 assertEqualInt(ARCHIVE_OK, archive_write_free(a));
96
97 /* Read the archive back with a skip function. */
98 assert(NULL != (a = archive_read_new()));
99 assertA(0 == archive_read_support_format_tar(a));
100 assertA(0 == read_open_memory(a, buff, sizeof(buff), 512));
101 verify_read_positions(a);
102 archive_read_free(a);
103
104 /* Read the archive back without a skip function. */
105 assert(NULL != (a = archive_read_new()));
106 assertA(0 == archive_read_support_format_tar(a));
107 assertA(0 == read_open_memory_minimal(a, buff, sizeof(buff), 512));
108 verify_read_positions(a);
109 archive_read_free(a);
110
111 }
112