t_getcwd.c revision 272458 
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
44ATF_TC(getcwd_err);
45ATF_TC_HEAD(getcwd_err, tc)
46{
47	atf_tc_set_md_var(tc, "descr", "Test error conditions in getcwd(3)");
48}
49
50ATF_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
65ATF_TC(getcwd_fts);
66ATF_TC_HEAD(getcwd_fts, tc)
67{
68	atf_tc_set_md_var(tc, "descr", "A basic test of getcwd(3)");
69}
70
71ATF_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
136out:
137	if (fts != NULL)
138		(void)fts_close(fts);
139
140	if (str != NULL)
141		atf_tc_fail("%s", str);
142}
143
144ATF_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