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
27 /*
28 * tar -x -P should follow existing symlinks for dirs, but not other
29 * content. Plain tar -x should remove symlinks when they're in the
30 * way of a dir extraction.
31 */
32
DEFINE_TEST(test_symlink_dir)33 DEFINE_TEST(test_symlink_dir)
34 {
35 assertUmask(0);
36
37 assertMakeDir("source", 0755);
38 assertMakeFile("source/file", 0755, "a");
39 assertMakeFile("source/file2", 0755, "ab");
40 assertMakeDir("source/dir", 0755);
41 assertMakeDir("source/dir/d", 0755);
42 assertMakeFile("source/dir/f", 0755, "abc");
43 assertMakeDir("source/dir2", 0755);
44 assertMakeDir("source/dir2/d2", 0755);
45 assertMakeFile("source/dir2/f2", 0755, "abcd");
46 assertMakeDir("source/dir3", 0755);
47 assertMakeDir("source/dir3/d3", 0755);
48 assertMakeFile("source/dir3/f3", 0755, "abcde");
49 assertMakeDir("source/dir4", 0755);
50 assertMakeFile("source/dir4/file3", 0755, "abcdef");
51 assertMakeHardlink("source/dir4/file4", "source/dir4/file3");
52
53 assertEqualInt(0,
54 systemf("%s -cf test.tar -C source dir dir2 dir3 file file2",
55 testprog));
56
57 /* Second archive with hardlinks */
58 assertEqualInt(0,
59 systemf("%s -cf test2.tar -C source dir4", testprog));
60
61 /*
62 * Extract with -x and without -P.
63 */
64 assertMakeDir("dest1", 0755);
65 /* "dir" is a symlink to an existing "dest1/real_dir" */
66 assertMakeDir("dest1/real_dir", 0755);
67 if (canSymlink()) {
68 assertMakeSymlink("dest1/dir", "real_dir", 1);
69 /* "dir2" is a symlink to a non-existing "real_dir2" */
70 assertMakeSymlink("dest1/dir2", "real_dir2", 1);
71 } else {
72 skipping("Symlinks are not supported on this platform");
73 }
74 /* "dir3" is a symlink to an existing "non_dir3" */
75 assertMakeFile("dest1/non_dir3", 0755, "abcdef");
76 if (canSymlink())
77 assertMakeSymlink("dest1/dir3", "non_dir3", 1);
78 /* "file" is a symlink to existing "real_file" */
79 assertMakeFile("dest1/real_file", 0755, "abcdefg");
80 if (canSymlink()) {
81 assertMakeSymlink("dest1/file", "real_file", 0);
82 /* "file2" is a symlink to non-existing "real_file2" */
83 assertMakeSymlink("dest1/file2", "real_file2", 0);
84 }
85 assertEqualInt(0, systemf("%s -xf test.tar -C dest1", testprog));
86
87 /* dest1/dir symlink should be replaced */
88 failure("symlink to dir was followed when it shouldn't be");
89 assertIsDir("dest1/dir", -1);
90 /* dest1/dir2 symlink should be replaced */
91 failure("Broken symlink wasn't replaced with dir");
92 assertIsDir("dest1/dir2", -1);
93 /* dest1/dir3 symlink should be replaced */
94 failure("Symlink to non-dir wasn't replaced with dir");
95 assertIsDir("dest1/dir3", -1);
96 /* dest1/file symlink should be replaced */
97 failure("Symlink to existing file should be replaced");
98 assertIsReg("dest1/file", -1);
99 /* dest1/file2 symlink should be replaced */
100 failure("Symlink to non-existing file should be replaced");
101 assertIsReg("dest1/file2", -1);
102
103 /*
104 * Extract with both -x and -P
105 */
106 assertMakeDir("dest2", 0755);
107 /* "dir" is a symlink to existing "real_dir" */
108 assertMakeDir("dest2/real_dir", 0755);
109 if (canSymlink())
110 assertMakeSymlink("dest2/dir", "real_dir", 1);
111 /* "dir2" is a symlink to a non-existing "real_dir2" */
112 if (canSymlink())
113 assertMakeSymlink("dest2/dir2", "real_dir2", 1);
114 /* "dir3" is a symlink to an existing "non_dir3" */
115 assertMakeFile("dest2/non_dir3", 0755, "abcdefgh");
116 if (canSymlink())
117 assertMakeSymlink("dest2/dir3", "non_dir3", 1);
118 /* "file" is a symlink to existing "real_file" */
119 assertMakeFile("dest2/real_file", 0755, "abcdefghi");
120 if (canSymlink())
121 assertMakeSymlink("dest2/file", "real_file", 0);
122 /* "file2" is a symlink to non-existing "real_file2" */
123 if (canSymlink())
124 assertMakeSymlink("dest2/file2", "real_file2", 0);
125 assertEqualInt(0, systemf("%s -xPf test.tar -C dest2", testprog));
126
127 /* "dir4" is a symlink to existing "real_dir" */
128 if (canSymlink())
129 assertMakeSymlink("dest2/dir4", "real_dir", 1);
130 assertEqualInt(0, systemf("%s -xPf test2.tar -C dest2", testprog));
131
132 /* dest2/dir and dest2/dir4 symlinks should be followed */
133 if (canSymlink()) {
134 assertIsSymlink("dest2/dir", "real_dir", 1);
135 assertIsSymlink("dest2/dir4", "real_dir", 1);
136 assertIsDir("dest2/real_dir", -1);
137 }
138
139 /* Contents of 'dir' should be restored */
140 assertIsDir("dest2/dir/d", -1);
141 assertIsReg("dest2/dir/f", -1);
142 assertFileSize("dest2/dir/f", 3);
143 /* dest2/dir2 symlink should be removed */
144 failure("Broken symlink wasn't replaced with dir");
145 assertIsDir("dest2/dir2", -1);
146 /* dest2/dir3 symlink should be removed */
147 failure("Symlink to non-dir wasn't replaced with dir");
148 assertIsDir("dest2/dir3", -1);
149 /* dest2/file symlink should be removed;
150 * even -P shouldn't follow symlinks for files */
151 failure("Symlink to existing file should be removed");
152 assertIsReg("dest2/file", -1);
153 /* dest2/file2 symlink should be removed */
154 failure("Symlink to non-existing file should be removed");
155 assertIsReg("dest2/file2", -1);
156
157 /* dest2/dir4/file3 and dest2/dir4/file4 should be hard links */
158 assertIsHardlink("dest2/dir4/file3", "dest2/dir4/file4");
159 }
160