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
28static void
29test_empty_file1(void)
30{
31	struct archive* a = archive_read_new();
32
33	/* Try opening an empty file with the raw handler. */
34	assertEqualInt(ARCHIVE_OK, archive_read_support_format_raw(a));
35	assertEqualInt(0, archive_errno(a));
36	assertEqualString(NULL, archive_error_string(a));
37
38	/* Raw handler doesn't support empty files. */
39	assertEqualInt(ARCHIVE_FATAL, archive_read_open_filename(a, "emptyfile", 0));
40	assert(NULL != archive_error_string(a));
41
42	archive_read_free(a);
43}
44
45static void
46test_empty_file2_check(struct archive* a)
47{
48	struct archive_entry* e;
49	assertEqualInt(0, archive_errno(a));
50	assertEqualString(NULL, archive_error_string(a));
51
52	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, "emptyfile", 0));
53	assertEqualInt(0, archive_errno(a));
54	assertEqualString(NULL, archive_error_string(a));
55
56	assertEqualInt(ARCHIVE_EOF, archive_read_next_header(a, &e));
57	assertEqualInt(0, archive_errno(a));
58	assertEqualString(NULL, archive_error_string(a));
59
60	archive_read_free(a);
61}
62
63static void
64test_empty_file2(void)
65{
66	struct archive* a = archive_read_new();
67
68	/* Try opening an empty file with raw and empty handlers. */
69	assertEqualInt(ARCHIVE_OK, archive_read_support_format_raw(a));
70	assertEqualInt(ARCHIVE_OK, archive_read_support_format_empty(a));
71	test_empty_file2_check(a);
72
73	a = archive_read_new();
74	assertEqualInt(ARCHIVE_OK, archive_read_support_format_by_code(a, ARCHIVE_FORMAT_EMPTY));
75	test_empty_file2_check(a);
76
77	a = archive_read_new();
78	assertEqualInt(ARCHIVE_OK, archive_read_set_format(a, ARCHIVE_FORMAT_EMPTY));
79	test_empty_file2_check(a);
80}
81
82static void
83test_empty_tarfile(void)
84{
85	struct archive* a = archive_read_new();
86	struct archive_entry* e;
87
88	/* Try opening an empty file with raw and empty handlers. */
89	assertEqualInt(ARCHIVE_OK, archive_read_support_format_tar(a));
90	assertEqualInt(0, archive_errno(a));
91	assertEqualString(NULL, archive_error_string(a));
92
93	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, "empty.tar", 0));
94	assertEqualInt(0, archive_errno(a));
95	assertEqualString(NULL, archive_error_string(a));
96
97	assertEqualInt(ARCHIVE_EOF, archive_read_next_header(a, &e));
98	assertEqualInt(0, archive_errno(a));
99	assertEqualString(NULL, archive_error_string(a));
100
101	archive_read_free(a);
102}
103
104/* 512 zero bytes. */
105static char nulls[512];
106
107DEFINE_TEST(test_archive_read_next_header_empty)
108{
109	FILE *f;
110
111	/* Create an empty file. */
112	f = fopen("emptyfile", "wb");
113	fclose(f);
114
115	/* Create a file with 512 zero bytes. */
116	f = fopen("empty.tar", "wb");
117	assertEqualInt(512, fwrite(nulls, 1, 512, f));
118	fclose(f);
119
120	test_empty_file1();
121	test_empty_file2();
122	test_empty_tarfile();
123
124}
125