xref: /netbsd-src/tests/lib/libc/gen/t_getcwd.c (revision 1b9578b8c2c1f848eeb16dabbfd7d1f0d9fdefbd)
1 /*	$NetBSD: t_getcwd.c,v 1.2 2011/06/16 15:33:25 joerg Exp $ */
2 
3 /*-
4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jukka Ruohonen.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 #include <sys/cdefs.h>
32 __RCSID("$NetBSD: t_getcwd.c,v 1.2 2011/06/16 15:33:25 joerg Exp $");
33 
34 #include <sys/param.h>
35 #include <sys/stat.h>
36 
37 #include <atf-c.h>
38 #include <errno.h>
39 #include <fts.h>
40 #include <limits.h>
41 #include <string.h>
42 #include <unistd.h>
43 
44 ATF_TC(getcwd_err);
45 ATF_TC_HEAD(getcwd_err, tc)
46 {
47 	atf_tc_set_md_var(tc, "descr", "Test error conditions in getcwd(3)");
48 }
49 
50 ATF_TC_BODY(getcwd_err, tc)
51 {
52 	char buf[MAXPATHLEN];
53 
54 	errno = 0;
55 
56 	ATF_REQUIRE(getcwd(buf, 0) == NULL);
57 	ATF_REQUIRE(errno == EINVAL);
58 
59 	errno = 0;
60 
61 	ATF_REQUIRE(getcwd((void *)-1, sizeof(buf)) == NULL);
62 	ATF_REQUIRE(errno == EFAULT);
63 }
64 
65 ATF_TC(getcwd_fts);
66 ATF_TC_HEAD(getcwd_fts, tc)
67 {
68 	atf_tc_set_md_var(tc, "descr", "A basic test of getcwd(3)");
69 }
70 
71 ATF_TC_BODY(getcwd_fts, tc)
72 {
73 	const char *str = NULL;
74 	const short depth = 3;
75 	char buf[MAXPATHLEN];
76 	char *argv[2];
77 	FTSENT *ftse;
78 	FTS *fts;
79 	int ops;
80 
81 	argv[1] = NULL;
82 	argv[0] = __UNCONST("/");
83 
84 	/*
85 	 * Test that getcwd(3) works with basic
86 	 * system directories. Note that having
87 	 * no FTS_NOCHDIR specified should ensure
88 	 * that the current directory is visited.
89 	 */
90 	ops = FTS_PHYSICAL | FTS_NOSTAT;
91 	fts = fts_open(argv, ops, NULL);
92 
93 	if (fts == NULL) {
94 		str = "failed to initialize fts(3)";
95 		goto out;
96 	}
97 
98 	while ((ftse = fts_read(fts)) != NULL) {
99 
100 		if (ftse->fts_level < 1)
101 			continue;
102 
103 		if (ftse->fts_level > depth) {
104 			(void)fts_set(fts, ftse, FTS_SKIP);
105 			continue;
106 		}
107 
108 		switch(ftse->fts_info) {
109 
110 		case FTS_DP:
111 
112 			(void)memset(buf, 0, sizeof(buf));
113 
114 			if (getcwd(buf, sizeof(buf)) == NULL) {
115 				str = "getcwd(3) failed";
116 				goto out;
117 			}
118 
119 			if (strstr(ftse->fts_path, buf) == NULL) {
120 				str = "getcwd(3) returned incorrect path";
121 				goto out;
122 			}
123 
124 			break;
125 
126 		default:
127 			break;
128 		}
129 	}
130 
131 out:
132 	if (fts != NULL)
133 		(void)fts_close(fts);
134 
135 	if (str != NULL)
136 		atf_tc_fail("%s", str);
137 }
138 
139 ATF_TP_ADD_TCS(tp)
140 {
141 
142 	ATF_TP_ADD_TC(tp, getcwd_err);
143 	ATF_TP_ADD_TC(tp, getcwd_fts);
144 
145 	return atf_no_error();
146 }
147