t_access.c revision 276478 
1/* $NetBSD: t_access.c,v 1.1 2011/07/07 06:57:53 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_access.c,v 1.1 2011/07/07 06:57:53 jruoho Exp $");
33
34#include <errno.h>
35#include <fcntl.h>
36#include <limits.h>
37#include <stdint.h>
38#include <stdlib.h>
39#include <unistd.h>
40
41#include <atf-c.h>
42
43#ifdef __FreeBSD__
44#include <sys/param.h>
45#include <sys/stat.h>
46#endif
47
48static const char path[] = "access";
49static const int mode[4] = { R_OK, W_OK, X_OK, F_OK };
50
51ATF_TC_WITH_CLEANUP(access_access);
52ATF_TC_HEAD(access_access, tc)
53{
54	atf_tc_set_md_var(tc, "descr", "Test access(2) for EACCES");
55	atf_tc_set_md_var(tc, "require.user", "unprivileged");
56}
57
58ATF_TC_BODY(access_access, tc)
59{
60	const int perm[3] = { 0200, 0400, 0000 };
61	size_t i;
62	int fd;
63
64	fd = open(path, O_RDONLY | O_CREAT);
65
66	if (fd < 0)
67		return;
68
69	for (i = 0; i < __arraycount(mode) - 1; i++) {
70
71		ATF_REQUIRE(fchmod(fd, perm[i]) == 0);
72
73		errno = 0;
74
75		ATF_REQUIRE(access(path, mode[i]) != 0);
76		ATF_REQUIRE(errno == EACCES);
77	}
78
79	ATF_REQUIRE(close(fd) == 0);
80}
81
82ATF_TC_CLEANUP(access_access, tc)
83{
84	(void)unlink(path);
85}
86
87ATF_TC(access_fault);
88ATF_TC_HEAD(access_fault, tc)
89{
90	atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT");
91}
92
93ATF_TC_BODY(access_fault, tc)
94{
95	size_t i;
96
97	for (i = 0; i < __arraycount(mode); i++) {
98
99		errno = 0;
100
101		ATF_REQUIRE(access(NULL, mode[i]) != 0);
102		ATF_REQUIRE(errno == EFAULT);
103
104		errno = 0;
105
106		ATF_REQUIRE(access((char *)-1, mode[i]) != 0);
107		ATF_REQUIRE(errno == EFAULT);
108	}
109}
110
111ATF_TC(access_inval);
112ATF_TC_HEAD(access_inval, tc)
113{
114	atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL");
115}
116
117ATF_TC_BODY(access_inval, tc)
118{
119
120#if defined(__FreeBSD__) && __FreeBSD_version < 1100033
121	atf_tc_expect_fail("arguments to access aren't validated; see "
122	    "bug # 181155 for more details");
123#endif
124	errno = 0;
125
126	ATF_REQUIRE(access("/usr", -1) != 0);
127	ATF_REQUIRE(errno == EINVAL);
128}
129
130ATF_TC(access_notdir);
131ATF_TC_HEAD(access_notdir, tc)
132{
133	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR");
134}
135
136ATF_TC_BODY(access_notdir, tc)
137{
138	size_t i;
139
140	for (i = 0; i < __arraycount(mode); i++) {
141
142		errno = 0;
143
144		/*
145		 *  IEEE Std 1003.1-2008 about ENOTDIR:
146		 *
147		 *  "A component of the path prefix is not a directory,
148		 *   or the path argument contains at least one non-<slash>
149		 *   character and ends with one or more trailing <slash>
150		 *   characters and the last pathname component names an
151		 *   existing file that is neither a directory nor a symbolic
152		 *   link to a directory."
153		 */
154		ATF_REQUIRE(access("/etc/passwd//", mode[i]) != 0);
155		ATF_REQUIRE(errno == ENOTDIR);
156	}
157}
158
159ATF_TC(access_notexist);
160ATF_TC_HEAD(access_notexist, tc)
161{
162	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT");
163}
164
165ATF_TC_BODY(access_notexist, tc)
166{
167	size_t i;
168
169	for (i = 0; i < __arraycount(mode); i++) {
170
171		errno = 0;
172
173		ATF_REQUIRE(access("", mode[i]) != 0);
174		ATF_REQUIRE(errno == ENOENT);
175	}
176}
177
178ATF_TC(access_toolong);
179ATF_TC_HEAD(access_toolong, tc)
180{
181	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG");
182}
183
184ATF_TC_BODY(access_toolong, tc)
185{
186	char *buf;
187	size_t i;
188
189	buf = malloc(PATH_MAX);
190
191	if (buf == NULL)
192		return;
193
194	for (i = 0; i < PATH_MAX; i++)
195		buf[i] = 'x';
196
197	for (i = 0; i < __arraycount(mode); i++) {
198
199		errno = 0;
200
201		ATF_REQUIRE(access(buf, mode[i]) != 0);
202		ATF_REQUIRE(errno == ENAMETOOLONG);
203	}
204
205	free(buf);
206}
207
208ATF_TP_ADD_TCS(tp)
209{
210
211	ATF_TP_ADD_TC(tp, access_access);
212	ATF_TP_ADD_TC(tp, access_fault);
213	ATF_TP_ADD_TC(tp, access_inval);
214	ATF_TP_ADD_TC(tp, access_notdir);
215	ATF_TP_ADD_TC(tp, access_notexist);
216	ATF_TP_ADD_TC(tp, access_toolong);
217
218	return atf_no_error();
219}
220