]> CyberLeo.Net >> Repos - FreeBSD/stable/10.git/blob - contrib/libarchive/libarchive/test/test_read_position.c
MFC r368207,368607:
[FreeBSD/stable/10.git] / contrib / libarchive / libarchive / test / test_read_position.c
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("$FreeBSD$");
27
28 static unsigned char nulls[1000];
29 static unsigned char tmp[1000];
30 static unsigned char  buff[10000];
31 size_t data_sizes[] = {0, 5, 511, 512, 513};
32
33 static void verify_read_positions(struct archive *a);
34
35 static void
36 verify_read_positions(struct archive *a)
37 {
38         struct archive_entry *ae;
39         intmax_t read_position = 0;
40         size_t j;
41
42         /* Initial header position is zero. */
43         assert(read_position == (intmax_t)archive_read_header_position(a));
44         for (j = 0; j < sizeof(data_sizes)/sizeof(data_sizes[0]); ++j) {
45                 assertA(0 == archive_read_next_header(a, &ae));
46                 assertEqualInt(read_position,
47                     (intmax_t)archive_read_header_position(a));
48                 /* Every other entry: read, then skip */
49                 if (j & 1)
50                         assertEqualInt(1,
51                             archive_read_data(a, tmp, 1));
52                 assertA(0 == archive_read_data_skip(a));
53                 /* read_data_skip() doesn't change header_position */
54                 assertEqualInt(read_position,
55                     (intmax_t)archive_read_header_position(a));
56
57                 read_position += 512; /* Size of header. */
58                 read_position += (data_sizes[j] + 511) & ~511;
59         }
60
61         assertA(1 == archive_read_next_header(a, &ae));
62         assertEqualInt(read_position, (intmax_t)archive_read_header_position(a));
63         assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a));
64         assertEqualInt(read_position, (intmax_t)archive_read_header_position(a));
65 }
66
67 /* Check that header_position tracks correctly on read. */
68 DEFINE_TEST(test_read_position)
69 {
70         struct archive *a;
71         struct archive_entry *ae;
72         size_t write_pos;
73         size_t i;
74
75         /* Sanity test */
76         assert(sizeof(nulls) + 512 + 1024 <= sizeof(buff));
77
78         /* Create an archive. */
79         assert(NULL != (a = archive_write_new()));
80         assertA(0 == archive_write_set_format_pax_restricted(a));
81         assertA(0 == archive_write_set_bytes_per_block(a, 512));
82         assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &write_pos));
83
84         for (i = 0; i < sizeof(data_sizes)/sizeof(data_sizes[0]); ++i) {
85                 /* Create a simple archive_entry. */
86                 assert((ae = archive_entry_new()) != NULL);
87                 archive_entry_set_pathname(ae, "testfile");
88                 archive_entry_set_mode(ae, S_IFREG);
89                 archive_entry_set_size(ae, data_sizes[i]);
90                 assertA(0 == archive_write_header(a, ae));
91                 archive_entry_free(ae);
92                 assertA(data_sizes[i]
93                     == (size_t)archive_write_data(a, nulls, sizeof(nulls)));
94         }
95         assertEqualIntA(a, ARCHIVE_OK, archive_write_close(a));
96         assertEqualInt(ARCHIVE_OK, archive_write_free(a));
97
98         /* Read the archive back with a skip function. */
99         assert(NULL != (a = archive_read_new()));
100         assertA(0 == archive_read_support_format_tar(a));
101         assertA(0 == read_open_memory(a, buff, sizeof(buff), 512));
102         verify_read_positions(a);
103         archive_read_free(a);
104
105         /* Read the archive back without a skip function. */
106         assert(NULL != (a = archive_read_new()));
107         assertA(0 == archive_read_support_format_tar(a));
108         assertA(0 == read_open_memory_minimal(a, buff, sizeof(buff), 512));
109         verify_read_positions(a);
110         archive_read_free(a);
111
112 }