t_access.c revision 313535 
1/* $NetBSD: t_access.c,v 2.2 2017/01/10 22:36:29 christos 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 1.2 2017/01/10 22:36:29 christos Exp $");
33
34#ifdef __FreeBSD__
35#include <sys/param.h> /* For __FreeBSD_version */
36#endif
37
38#include <atf-c.h>
39
40#include <sys/stat.h>
41
42#include <errno.h>
43#include <fcntl.h>
44#include <limits.h>
45#include <stdint.h>
46#include <stdlib.h>
47#include <unistd.h>
48
49static const char path[] = "access";
50static const int mode[4] = { R_OK, W_OK, X_OK, F_OK };
51
52ATF_TC_WITH_CLEANUP(access_access);
53ATF_TC_HEAD(access_access, tc)
54{
55	atf_tc_set_md_var(tc, "descr", "Test access(2) for EACCES");
56	atf_tc_set_md_var(tc, "require.user", "unprivileged");
57}
58
59ATF_TC_BODY(access_access, tc)
60{
61	const int perm[3] = { 0200, 0400, 0000 };
62	size_t i;
63	int fd;
64
65	fd = open(path, O_RDONLY | O_CREAT);
66
67	if (fd < 0)
68		return;
69
70	for (i = 0; i < __arraycount(mode) - 1; i++) {
71
72		ATF_REQUIRE(fchmod(fd, perm[i]) == 0);
73
74		errno = 0;
75
76		ATF_REQUIRE(access(path, mode[i]) != 0);
77		ATF_REQUIRE(errno == EACCES);
78	}
79
80	ATF_REQUIRE(close(fd) == 0);
81}
82
83ATF_TC_CLEANUP(access_access, tc)
84{
85	(void)unlink(path);
86}
87
88ATF_TC(access_fault);
89ATF_TC_HEAD(access_fault, tc)
90{
91	atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT");
92}
93
94ATF_TC_BODY(access_fault, tc)
95{
96	size_t i;
97
98	for (i = 0; i < __arraycount(mode); i++) {
99
100		errno = 0;
101
102		ATF_REQUIRE(access(NULL, mode[i]) != 0);
103		ATF_REQUIRE(errno == EFAULT);
104
105		errno = 0;
106
107		ATF_REQUIRE(access((char *)-1, mode[i]) != 0);
108		ATF_REQUIRE(errno == EFAULT);
109	}
110}
111
112ATF_TC(access_inval);
113ATF_TC_HEAD(access_inval, tc)
114{
115	atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL");
116}
117
118ATF_TC_BODY(access_inval, tc)
119{
120
121#if defined(__FreeBSD__) && __FreeBSD_version < 1100033
122	atf_tc_expect_fail("arguments to access aren't validated; see "
123	    "bug # 181155 for more details");
124#endif
125	errno = 0;
126
127	ATF_REQUIRE(access("/usr", -1) != 0);
128	ATF_REQUIRE(errno == EINVAL);
129}
130
131ATF_TC(access_notdir);
132ATF_TC_HEAD(access_notdir, tc)
133{
134	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR");
135}
136
137ATF_TC_BODY(access_notdir, tc)
138{
139	size_t i;
140
141	for (i = 0; i < __arraycount(mode); i++) {
142
143		errno = 0;
144
145		/*
146		 *  IEEE Std 1003.1-2008 about ENOTDIR:
147		 *
148		 *  "A component of the path prefix is not a directory,
149		 *   or the path argument contains at least one non-<slash>
150		 *   character and ends with one or more trailing <slash>
151		 *   characters and the last pathname component names an
152		 *   existing file that is neither a directory nor a symbolic
153		 *   link to a directory."
154		 */
155		ATF_REQUIRE(access("/etc/passwd//", mode[i]) != 0);
156		ATF_REQUIRE(errno == ENOTDIR);
157	}
158}
159
160ATF_TC(access_notexist);
161ATF_TC_HEAD(access_notexist, tc)
162{
163	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT");
164}
165
166ATF_TC_BODY(access_notexist, tc)
167{
168	size_t i;
169
170	for (i = 0; i < __arraycount(mode); i++) {
171
172		errno = 0;
173
174		ATF_REQUIRE(access("", mode[i]) != 0);
175		ATF_REQUIRE(errno == ENOENT);
176	}
177}
178
179ATF_TC(access_toolong);
180ATF_TC_HEAD(access_toolong, tc)
181{
182	atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG");
183}
184
185ATF_TC_BODY(access_toolong, tc)
186{
187	char *buf;
188	size_t i;
189
190	buf = malloc(PATH_MAX);
191
192	if (buf == NULL)
193		return;
194
195	for (i = 0; i < PATH_MAX; i++)
196		buf[i] = 'x';
197
198	for (i = 0; i < __arraycount(mode); i++) {
199
200		errno = 0;
201
202		ATF_REQUIRE(access(buf, mode[i]) != 0);
203		ATF_REQUIRE(errno == ENAMETOOLONG);
204	}
205
206	free(buf);
207}
208
209ATF_TP_ADD_TCS(tp)
210{
211
212	ATF_TP_ADD_TC(tp, access_access);
213	ATF_TP_ADD_TC(tp, access_fault);
214	ATF_TP_ADD_TC(tp, access_inval);
215	ATF_TP_ADD_TC(tp, access_notdir);
216	ATF_TP_ADD_TC(tp, access_notexist);
217	ATF_TP_ADD_TC(tp, access_toolong);
218
219	return atf_no_error();
220}
221