aboutsummaryrefslogtreecommitdiff
path: root/tar/test/test_option_r.c
blob: 287e80939adf302c9d53fdfa00d95851ec7b5b97 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*-
 * Copyright (c) 2003-2007 Tim Kientzle
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#include "test.h"
__FBSDID("$FreeBSD$");

/*
 * Also see test_option_q for additional validation of -r support.
 */
DEFINE_TEST(test_option_r)
{
	char *buff;
	char *p0, *p1;
	size_t buff_size = 35000;
	size_t s, buff_size_rounded;
	int r, i;

	buff = NULL;
	p0 = NULL;
	p1 = NULL;

	/* Create an archive with one file. */
	assertMakeFile("f1", 0644, "abc");
	r = systemf("%s cf archive.tar --format=ustar f1 >step1.out 2>step1.err", testprog);
	failure("Error invoking %s cf archive.tar f1", testprog);
	assertEqualInt(r, 0);
	assertEmptyFile("step1.out");
	assertEmptyFile("step1.err");

	/* Do some basic validation of the constructed archive. */
	p0 = slurpfile(&s, "archive.tar");
	if (!assert(p0 != NULL))
		goto done;
	if (!assert(s >= 2048))
		goto done;
	assertEqualMem(p0 + 0, "f1", 3);
	assertEqualMem(p0 + 512, "abc", 3);
	assertEqualMem(p0 + 1024, "\0\0\0\0\0\0\0\0", 8);
	assertEqualMem(p0 + 1536, "\0\0\0\0\0\0\0\0", 8);

	/* Edit that file with a lot more data and update the archive with a new copy. */
	buff = malloc(buff_size);
	assert(buff != NULL);
	if (buff == NULL)
		goto done;

	for (i = 0; i < (int)buff_size; ++i)
		buff[i] = "abcdefghijklmnopqrstuvwxyz"[rand() % 26];
	buff[buff_size - 1] = '\0';
	assertMakeFile("f1", 0644, buff);
	r = systemf("%s rf archive.tar --format=ustar f1 >step2.out 2>step2.err", testprog);
	failure("Error invoking %s rf archive.tar f1", testprog);
	assertEqualInt(r, 0);
	assertEmptyFile("step2.out");
	assertEmptyFile("step2.err");

	/* The constructed archive should just have the new entry appended. */
	p1 = slurpfile(&s, "archive.tar");
	if (!assert(p1 != NULL))
		goto done;
	buff_size_rounded = ((buff_size + 511) / 512) * 512;
	assert(s >= 2560 + buff_size_rounded);
	/* Verify first entry is unchanged. */
	assertEqualMem(p0, p1, 1024);
	/* Verify that second entry is correct. */
	assertEqualMem(p1 + 1024, "f1", 3);
	assertEqualMem(p1 + 1536, buff, buff_size);
	/* Verify end-of-archive marker. */
	assertEqualMem(p1 + 1536 + buff_size_rounded, "\0\0\0\0\0\0\0\0", 8);
	assertEqualMem(p1 + 2048 + buff_size_rounded, "\0\0\0\0\0\0\0\0", 8);

	free(p0);
	p0 = p1;

	/* Update the archive by adding a different file. */
	assertMakeFile("f2", 0644, "f2");
	r = systemf("%s rf archive.tar --format=ustar f2 >step3.out 2>step3.err", testprog);
	failure("Error invoking %s rf archive.tar f2", testprog);
	assertEqualInt(r, 0);
	assertEmptyFile("step3.out");
	assertEmptyFile("step3.err");

	/* Validate the constructed archive. */
	p1 = slurpfile(&s, "archive.tar");
	if (!assert(p1 != NULL))
		goto done;
	assert(s >= 3584 + buff_size_rounded);
	/* Verify first two entries are unchanged. */
	assertEqualMem(p0, p1, 1536 + buff_size_rounded);
	/* Verify that new entry is correct. */
	assertEqualMem(p1 + 1536 + buff_size_rounded, "f2", 3);
	assertEqualMem(p1 + 2048 + buff_size_rounded, "f2", 3);
	/* Verify end-of-archive marker. */
	assertEqualMem(p1 + 2560 + buff_size_rounded, "\0\0\0\0\0\0\0\0", 8);
	assertEqualMem(p1 + 3072 + buff_size_rounded, "\0\0\0\0\0\0\0\0", 8);
	free(p1);

	/* Unpack everything */
	assertMakeDir("extract", 0775);
	assertChdir("extract");
	r = systemf("%s xf ../archive.tar >extract.out 2>extract.err", testprog);
	failure("Error invoking %s xf archive.tar", testprog);
	assertEqualInt(r, 0);
	assertEmptyFile("extract.out");
	assertEmptyFile("extract.err");

	/* Verify that the second copy of f1 overwrote the first. */
	assertFileContents(buff, (int)strlen(buff), "f1");
done:
	free(buff);
	free(p0);
}