t_access.c revision 272345 
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
43static const char path[] = "access";
44static const int mode[4] = { R_OK, W_OK, X_OK, F_OK };
45
46ATF_TC_WITH_CLEANUP(access_access);
47ATF_TC_HEAD(access_access, tc)
48{
49	atf_tc_set_md_var(tc, "descr", "Test access(2) for EACCES");
50	atf_tc_set_md_var(tc, "require.user", "unprivileged");
51}
52
53ATF_TC_BODY(access_access, tc)
54{
55	const int perm[3] = { 0200, 0400, 0000 };
56	size_t i;
57	int fd;
58
59	fd = open(path, O_RDONLY | O_CREAT);
60
61	if (fd < 0)
62		return;
63
64	for (i = 0; i < __arraycount(mode) - 1; i++) {
65
66		ATF_REQUIRE(fchmod(fd, perm[i]) == 0);
67
68		errno = 0;
69
70		ATF_REQUIRE(access(path, mode[i]) != 0);
71		ATF_REQUIRE(errno == EACCES);
72	}
73
74	ATF_REQUIRE(close(fd) == 0);
75}
76
77ATF_TC_CLEANUP(access_access, tc)
78{
79	(void)unlink(path);
80}
81
82ATF_TC(access_fault);
83ATF_TC_HEAD(access_fault, tc)
84{
85	atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT");
86}
87
88ATF_TC_BODY(access_fault, tc)
89{
90	size_t i;
91
92	for (i = 0; i < __arraycount(mode); i++) {
93
94		errno = 0;
95
96		ATF_REQUIRE(access(NULL, mode[i]) != 0);
97		ATF_REQUIRE(errno == EFAULT);
98
99		errno = 0;
100
101		ATF_REQUIRE(access((char *)-1, mode[i]) != 0);
102		ATF_REQUIRE(errno == EFAULT);
103	}
104}
105
106ATF_TC(access_inval);
107ATF_TC_HEAD(access_inval, tc)
108{
109	atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL");
110}
111
112ATF_TC_BODY(access_inval, tc)
113{
114
115	errno = 0;
116
117	ATF_REQUIRE(access("/usr", -1) != 0);
118	ATF_REQUIRE(errno == EINVAL);
119}
120
121ATF_TC(access_notdir);
122ATF_TC_HEAD(access_notdir, tc)
123{
124	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR");
125}
126
127ATF_TC_BODY(access_notdir, tc)
128{
129	size_t i;
130
131	for (i = 0; i < __arraycount(mode); i++) {
132
133		errno = 0;
134
135		/*
136		 *  IEEE Std 1003.1-2008 about ENOTDIR:
137		 *
138		 *  "A component of the path prefix is not a directory,
139		 *   or the path argument contains at least one non-<slash>
140		 *   character and ends with one or more trailing <slash>
141		 *   characters and the last pathname component names an
142		 *   existing file that is neither a directory nor a symbolic
143		 *   link to a directory."
144		 */
145		ATF_REQUIRE(access("/etc/passwd//", mode[i]) != 0);
146		ATF_REQUIRE(errno == ENOTDIR);
147	}
148}
149
150ATF_TC(access_notexist);
151ATF_TC_HEAD(access_notexist, tc)
152{
153	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT");
154}
155
156ATF_TC_BODY(access_notexist, tc)
157{
158	size_t i;
159
160	for (i = 0; i < __arraycount(mode); i++) {
161
162		errno = 0;
163
164		ATF_REQUIRE(access("", mode[i]) != 0);
165		ATF_REQUIRE(errno == ENOENT);
166	}
167}
168
169ATF_TC(access_toolong);
170ATF_TC_HEAD(access_toolong, tc)
171{
172	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG");
173}
174
175ATF_TC_BODY(access_toolong, tc)
176{
177	char *buf;
178	size_t i;
179
180	buf = malloc(PATH_MAX);
181
182	if (buf == NULL)
183		return;
184
185	for (i = 0; i < PATH_MAX; i++)
186		buf[i] = 'x';
187
188	for (i = 0; i < __arraycount(mode); i++) {
189
190		errno = 0;
191
192		ATF_REQUIRE(access(buf, mode[i]) != 0);
193		ATF_REQUIRE(errno == ENAMETOOLONG);
194	}
195
196	free(buf);
197}
198
199ATF_TP_ADD_TCS(tp)
200{
201
202	ATF_TP_ADD_TC(tp, access_access);
203	ATF_TP_ADD_TC(tp, access_fault);
204	ATF_TP_ADD_TC(tp, access_inval);
205	ATF_TP_ADD_TC(tp, access_notdir);
206	ATF_TP_ADD_TC(tp, access_notexist);
207	ATF_TP_ADD_TC(tp, access_toolong);
208
209	return atf_no_error();
210}
211