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("$FreeBSD$");
27 
28 /*
29  * Exercise symlink recreation.
30  */
31 DEFINE_TEST(test_write_disk_symlink)
32 {
33 	static const char data[]="abcdefghijklmnopqrstuvwxyz";
34 	struct archive *ad;
35 	struct archive_entry *ae;
36 	int r;
37 
38 	if (!canSymlink()) {
39 		skipping("Symlinks not supported");
40 		return;
41 	}
42 
43 	/* Write entries to disk. */
44 	assert((ad = archive_write_disk_new()) != NULL);
45 
46 	/*
47 	 * First, create a regular file then a symlink to that file.
48 	 */
49 
50 	/* Regular file: link1a */
51 	assert((ae = archive_entry_new()) != NULL);
52 	archive_entry_copy_pathname(ae, "link1a");
53 	archive_entry_set_mode(ae, AE_IFREG | 0755);
54 	archive_entry_set_size(ae, sizeof(data));
55 	assertEqualIntA(ad, 0, archive_write_header(ad, ae));
56 	assertEqualInt(sizeof(data),
57 	    archive_write_data(ad, data, sizeof(data)));
58 	assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
59 	archive_entry_free(ae);
60 
61 	/* Symbolic Link: link1b -> link1a */
62 	assert((ae = archive_entry_new()) != NULL);
63 	archive_entry_copy_pathname(ae, "link1b");
64 	archive_entry_set_mode(ae, AE_IFLNK | 0642);
65 	archive_entry_set_size(ae, 0);
66 	archive_entry_copy_symlink(ae, "link1a");
67 	assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
68 	if (r >= ARCHIVE_WARN)
69 		assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
70 	archive_entry_free(ae);
71 
72 	/*
73 	 * We should be able to do this in the other order as well,
74 	 * of course.
75 	 */
76 
77 	/* Symbolic link: link2b -> link2a */
78 	assert((ae = archive_entry_new()) != NULL);
79 	archive_entry_copy_pathname(ae, "link2b");
80 	archive_entry_set_mode(ae, AE_IFLNK | 0642);
81 	archive_entry_unset_size(ae);
82 	archive_entry_copy_symlink(ae, "link2a");
83 	assertEqualIntA(ad, 0, r = archive_write_header(ad, ae));
84 	if (r >= ARCHIVE_WARN) {
85 		assertEqualInt(ARCHIVE_WARN,
86 		    archive_write_data(ad, data, sizeof(data)));
87 		assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
88 	}
89 	archive_entry_free(ae);
90 
91 	/* File: link2a */
92 	assert((ae = archive_entry_new()) != NULL);
93 	archive_entry_copy_pathname(ae, "link2a");
94 	archive_entry_set_mode(ae, AE_IFREG | 0755);
95 	archive_entry_set_size(ae, sizeof(data));
96 	assertEqualIntA(ad, 0, archive_write_header(ad, ae));
97 	assertEqualInt(sizeof(data),
98 	    archive_write_data(ad, data, sizeof(data)));
99 	assertEqualIntA(ad, 0, archive_write_finish_entry(ad));
100 	archive_entry_free(ae);
101 
102 	assertEqualInt(ARCHIVE_OK, archive_write_free(ad));
103 
104 	/* Test the entries on disk. */
105 
106 	/* Test #1 */
107 	assertIsReg("link1a", -1);
108 	assertFileSize("link1a", sizeof(data));
109 	assertFileNLinks("link1a", 1);
110 	assertIsSymlink("link1b", "link1a");
111 
112 	/* Test #2: Should produce identical results to test #1 */
113 	assertIsReg("link2a", -1);
114 	assertFileSize("link2a", sizeof(data));
115 	assertFileNLinks("link2a", 1);
116 	assertIsSymlink("link2b", "link2a");
117 }
118