xref: /freebsd/contrib/netbsd-tests/lib/libc/gen/t_getcwd.c (revision 57718be8fa0bd5edc11ab9a72e68cc71982939a6)
1 /*	$NetBSD: t_getcwd.c,v 1.3 2011/07/27 05:04:11 jruoho 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 1.3 2011/07/27 05:04:11 jruoho 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 	char buf[MAXPATHLEN];
75 	char *argv[2];
76 	FTSENT *ftse;
77 	FTS *fts;
78 	int ops;
79 	short depth;
80 
81 	/*
82 	 * Do not traverse too deep; cf. PR bin/45180.
83 	 */
84 	depth = 2;
85 
86 	argv[1] = NULL;
87 	argv[0] = __UNCONST("/");
88 
89 	/*
90 	 * Test that getcwd(3) works with basic
91 	 * system directories. Note that having
92 	 * no FTS_NOCHDIR specified should ensure
93 	 * that the current directory is visited.
94 	 */
95 	ops = FTS_PHYSICAL | FTS_NOSTAT;
96 	fts = fts_open(argv, ops, NULL);
97 
98 	if (fts == NULL) {
99 		str = "failed to initialize fts(3)";
100 		goto out;
101 	}
102 
103 	while ((ftse = fts_read(fts)) != NULL) {
104 
105 		if (ftse->fts_level < 1)
106 			continue;
107 
108 		if (ftse->fts_level > depth) {
109 			(void)fts_set(fts, ftse, FTS_SKIP);
110 			continue;
111 		}
112 
113 		switch(ftse->fts_info) {
114 
115 		case FTS_DP:
116 
117 			(void)memset(buf, 0, sizeof(buf));
118 
119 			if (getcwd(buf, sizeof(buf)) == NULL) {
120 				str = "getcwd(3) failed";
121 				goto out;
122 			}
123 
124 			if (strstr(ftse->fts_path, buf) == NULL) {
125 				str = "getcwd(3) returned incorrect path";
126 				goto out;
127 			}
128 
129 			break;
130 
131 		default:
132 			break;
133 		}
134 	}
135 
136 out:
137 	if (fts != NULL)
138 		(void)fts_close(fts);
139 
140 	if (str != NULL)
141 		atf_tc_fail("%s", str);
142 }
143 
144 ATF_TP_ADD_TCS(tp)
145 {
146 
147 	ATF_TP_ADD_TC(tp, getcwd_err);
148 	ATF_TP_ADD_TC(tp, getcwd_fts);
149 
150 	return atf_no_error();
151 }
152