2 * Copyright (c) 2003-2007 Tim Kientzle
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
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23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 __FBSDID("$FreeBSD$");
28 DEFINE_TEST(test_strip_components)
30 assertMakeDir("d0", 0755);
32 assertMakeDir("d1", 0755);
33 assertMakeDir("d1/d2", 0755);
34 assertMakeDir("d1/d2/d3", 0755);
35 assertMakeFile("d1/d2/f1", 0644, "");
36 assertMakeHardlink("l1", "d1/d2/f1");
37 assertMakeHardlink("d1/l2", "d1/d2/f1");
39 assertMakeSymlink("s1", "d1/d2/f1", 0);
40 assertMakeSymlink("d1/s2", "d2/f1", 0);
45 * Test 1: Strip components when extracting archives.
48 assertEqualInt(0, systemf("%s -cf test.tar d0/l1 d0/s1 d0/d1",
51 assertEqualInt(0, systemf("%s -cf test.tar d0/l1 d0/d1",
54 assertMakeDir("target", 0755);
55 assertEqualInt(0, systemf("%s -x -C target --strip-components 2 "
56 "-f test.tar", testprog));
58 failure("d0/ is too short and should not get restored");
59 assertFileNotExists("target/d0");
60 failure("d0/d1/ is too short and should not get restored");
61 assertFileNotExists("target/d1");
62 failure("d0/s1 is too short and should not get restored");
63 assertFileNotExists("target/s1");
64 failure("d0/d1/s2 is a symlink to something that won't be extracted");
65 /* If platform supports symlinks, target/s2 is a broken symlink. */
66 /* If platform does not support symlink, target/s2 doesn't exist. */
68 assertIsSymlink("target/s2", "d2/f1", 0);
70 assertFileNotExists("target/s2");
71 failure("d0/d1/d2 should be extracted");
72 assertIsDir("target/d2", -1);
75 * Test 1b: Strip components extracting archives involving hardlinks.
77 * This next is a complicated case. d0/l1, d0/d1/l2, and
78 * d0/d1/d2/f1 are all hardlinks to the same file; d0/l1 can't
79 * be extracted with --strip-components=2 and the other two
80 * can. Remember that tar normally stores the first file with
81 * a body and the other as hardlink entries to the first
82 * appearance. So the final result depends on the order in
83 * which these three names get archived. If d0/l1 is first,
84 * none of the three can be restored. If either of the longer
85 * names are first, then the two longer ones can both be
86 * restored. Note that the "tar -cf" command above explicitly
87 * lists d0/l1 before d0/d1.
89 * It may be worth extending this test to exercise other
92 * Of course, this is all totally different for cpio and newc
93 * formats because the hardlink management is different.
94 * TODO: Rename this to test_strip_components_tar and create
95 * parallel tests for cpio and newc formats.
97 failure("d0/l1 is too short and should not get restored");
98 assertFileNotExists("target/l1");
99 failure("d0/d1/l2 is a hardlink to file whose name was too short");
100 assertFileNotExists("target/l2");
101 failure("d0/d1/d2/f1 is a hardlink to file whose name was too short");
102 assertFileNotExists("target/d2/f1");
105 * Test 2: Strip components when creating archives.
108 assertEqualInt(0, systemf("%s --strip-components 2 -cf test2.tar "
109 "d0/l1 d0/s1 d0/d1", testprog));
111 assertEqualInt(0, systemf("%s --strip-components 2 -cf test2.tar "
112 "d0/l1 d0/d1", testprog));
114 assertMakeDir("target2", 0755);
115 assertEqualInt(0, systemf("%s -x -C target2 -f test2.tar", testprog));
117 failure("d0/ is too short and should not have been archived");
118 assertFileNotExists("target2/d0");
119 failure("d0/d1/ is too short and should not have been archived");
120 assertFileNotExists("target2/d1");
121 failure("d0/s1 is too short and should not get restored");
122 assertFileNotExists("target/s1");
123 /* If platform supports symlinks, target/s2 is included. */
125 failure("d0/d1/s2 is a symlink to something included in archive");
126 assertIsSymlink("target2/s2", "d2/f1", 0);
128 failure("d0/d1/d2 should be archived");
129 assertIsDir("target2/d2", -1);
132 * Test 2b: Strip components creating archives involving hardlinks.
134 failure("d0/l1 is too short and should not have been archived");
135 assertFileNotExists("target/l1");
136 failure("d0/d1/l2 is a hardlink to file whose name was too short");
137 assertFileNotExists("target/l2");
138 failure("d0/d1/d2/f1 is a hardlink to file whose name was too short");
139 assertFileNotExists("target/d2/f1");