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: src/lib/libarchive/test/test_read_truncated.c,v 1.4 2008/09/01 05:38:33 kientzle Exp $");
27
28char buff[1000000];
29char buff2[100000];
30
31DEFINE_TEST(test_read_truncated)
32{
33	struct archive_entry *ae;
34	struct archive *a;
35	unsigned int i;
36	size_t used;
37
38	/* Create a new archive in memory. */
39	assert((a = archive_write_new()) != NULL);
40	assertA(0 == archive_write_set_format_ustar(a));
41	assertA(0 == archive_write_set_compression_none(a));
42	assertA(0 == archive_write_open_memory(a, buff, sizeof(buff), &used));
43
44	/*
45	 * Write a file to it.
46	 */
47	assert((ae = archive_entry_new()) != NULL);
48	archive_entry_copy_pathname(ae, "file");
49	archive_entry_set_mode(ae, S_IFREG | 0755);
50	for (i = 0; i < sizeof(buff2); i++)
51		buff2[i] = (unsigned char)rand();
52	archive_entry_set_size(ae, sizeof(buff2));
53	assertA(0 == archive_write_header(a, ae));
54	archive_entry_free(ae);
55	assertA((int)sizeof(buff2) == archive_write_data(a, buff2, sizeof(buff2)));
56
57	/* Close out the archive. */
58	assertA(0 == archive_write_close(a));
59#if ARCHIVE_VERSION_NUMBER < 2000000
60	archive_write_finish(a);
61#else
62	assertA(0 == archive_write_finish(a));
63#endif
64
65	/* Now, read back a truncated version of the archive and
66	 * verify that we get an appropriate error. */
67	for (i = 1; i < used + 100; i += 100) {
68		assert((a = archive_read_new()) != NULL);
69		assertA(0 == archive_read_support_format_all(a));
70		assertA(0 == archive_read_support_compression_all(a));
71		assertA(0 == archive_read_open_memory(a, buff, i));
72
73		if (i < 512) {
74			assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae));
75			goto wrap_up;
76		} else {
77			assertA(0 == archive_read_next_header(a, &ae));
78		}
79
80		if (i < 512 + sizeof(buff2)) {
81			assertA(ARCHIVE_FATAL == archive_read_data(a, buff2, sizeof(buff2)));
82			goto wrap_up;
83		} else {
84			assertA((int)sizeof(buff2) == archive_read_data(a, buff2, sizeof(buff2)));
85		}
86
87		/* Verify the end of the archive. */
88		/* Archive must be long enough to capture a 512-byte
89		 * block of zeroes after the entry.  (POSIX requires a
90		 * second block of zeros to be written but libarchive
91		 * does not return an error if it can't consume
92		 * it.) */
93		if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) {
94			assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae));
95		} else {
96			assertA(ARCHIVE_EOF == archive_read_next_header(a, &ae));
97		}
98	wrap_up:
99		assert(0 == archive_read_close(a));
100#if ARCHIVE_VERSION_NUMBER < 2000000
101		archive_read_finish(a);
102#else
103		assert(0 == archive_read_finish(a));
104#endif
105	}
106
107
108
109	/* Same as above, except skip the body instead of reading it. */
110	for (i = 1; i < used + 100; i += 100) {
111		assert((a = archive_read_new()) != NULL);
112		assertA(0 == archive_read_support_format_all(a));
113		assertA(0 == archive_read_support_compression_all(a));
114		assertA(0 == archive_read_open_memory(a, buff, i));
115
116		if (i < 512) {
117			assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae));
118			goto wrap_up2;
119		} else {
120			assertA(0 == archive_read_next_header(a, &ae));
121		}
122
123		if (i < 512 + 512*((sizeof(buff2)+511)/512)) {
124			assertA(ARCHIVE_FATAL == archive_read_data_skip(a));
125			goto wrap_up2;
126		} else {
127			assertA(ARCHIVE_OK == archive_read_data_skip(a));
128		}
129
130		/* Verify the end of the archive. */
131		/* Archive must be long enough to capture a 512-byte
132		 * block of zeroes after the entry.  (POSIX requires a
133		 * second block of zeros to be written but libarchive
134		 * does not return an error if it can't consume
135		 * it.) */
136		if (i < 512 + 512*((sizeof(buff2) + 511)/512) + 512) {
137			assertA(ARCHIVE_FATAL == archive_read_next_header(a, &ae));
138		} else {
139			assertA(ARCHIVE_EOF == archive_read_next_header(a, &ae));
140		}
141	wrap_up2:
142		assert(0 == archive_read_close(a));
143#if ARCHIVE_VERSION_NUMBER < 2000000
144		archive_read_finish(a);
145#else
146		assert(0 == archive_read_finish(a));
147#endif
148	}
149}
150