1/*-
2 * Copyright (c) 2003-2011 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
26#include "test.h"
27__FBSDID("$FreeBSD$");
28
29static void
30test_empty_file1(void)
31{
32	struct archive* a = archive_read_new();
33
34	/* Try opening an empty file with the raw handler. */
35	assertEqualInt(ARCHIVE_OK, archive_read_support_format_raw(a));
36	assertEqualInt(0, archive_errno(a));
37	assertEqualString(NULL, archive_error_string(a));
38
39	/* Raw handler doesn't support empty files. */
40	assertEqualInt(ARCHIVE_FATAL, archive_read_open_filename(a, "emptyfile", 0));
41	assert(NULL != archive_error_string(a));
42
43	archive_read_free(a);
44}
45
46static void
47test_empty_file2(void)
48{
49	struct archive* a = archive_read_new();
50	struct archive_entry* e;
51
52	/* Try opening an empty file with raw and empty handlers. */
53	assertEqualInt(ARCHIVE_OK, archive_read_support_format_raw(a));
54	assertEqualInt(ARCHIVE_OK, archive_read_support_format_empty(a));
55	assertEqualInt(0, archive_errno(a));
56	assertEqualString(NULL, archive_error_string(a));
57
58	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, "emptyfile", 0));
59	assertEqualInt(0, archive_errno(a));
60	assertEqualString(NULL, archive_error_string(a));
61
62	assertEqualInt(ARCHIVE_EOF, archive_read_next_header(a, &e));
63	assertEqualInt(0, archive_errno(a));
64	assertEqualString(NULL, archive_error_string(a));
65
66	archive_read_free(a);
67}
68
69static void
70test_empty_tarfile(void)
71{
72	struct archive* a = archive_read_new();
73	struct archive_entry* e;
74
75	/* Try opening an empty file with raw and empty handlers. */
76	assertEqualInt(ARCHIVE_OK, archive_read_support_format_tar(a));
77	assertEqualInt(0, archive_errno(a));
78	assertEqualString(NULL, archive_error_string(a));
79
80	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, "empty.tar", 0));
81	assertEqualInt(0, archive_errno(a));
82	assertEqualString(NULL, archive_error_string(a));
83
84	assertEqualInt(ARCHIVE_EOF, archive_read_next_header(a, &e));
85	assertEqualInt(0, archive_errno(a));
86	assertEqualString(NULL, archive_error_string(a));
87
88	archive_read_free(a);
89}
90
91/* 512 zero bytes. */
92static char nulls[512];
93
94DEFINE_TEST(test_archive_read_next_header_empty)
95{
96	FILE *f;
97
98	/* Create an empty file. */
99	f = fopen("emptyfile", "wb");
100	fclose(f);
101
102	/* Create a file with 512 zero bytes. */
103	f = fopen("empty.tar", "wb");
104	assertEqualInt(512, fwrite(nulls, 1, 512, f));
105	fclose(f);
106
107	test_empty_file1();
108	test_empty_file2();
109	test_empty_tarfile();
110
111}
112