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 #include <sys/sysctl.h>
42
43 #include <errno.h>
44 #include <fcntl.h>
45 #include <limits.h>
46 #include <stdint.h>
47 #include <stdio.h>
48 #include <stdlib.h>
49 #include <unistd.h>
50
51 static const char path[] = "access";
52 static const int mode[4] = { R_OK, W_OK, X_OK, F_OK };
53
54 ATF_TC_WITH_CLEANUP(access_access);
ATF_TC_HEAD(access_access,tc)55 ATF_TC_HEAD(access_access, tc)
56 {
57 atf_tc_set_md_var(tc, "descr", "Test access(2) for EACCES");
58 atf_tc_set_md_var(tc, "require.user", "unprivileged");
59 }
60
ATF_TC_BODY(access_access,tc)61 ATF_TC_BODY(access_access, tc)
62 {
63 const int perm[3] = { 0200, 0400, 0000 };
64 size_t i;
65 int fd;
66
67 fd = open(path, O_RDONLY | O_CREAT, 0600);
68
69 if (fd < 0)
70 return;
71
72 for (i = 0; i < __arraycount(mode) - 1; i++) {
73
74 ATF_REQUIRE(fchmod(fd, perm[i]) == 0);
75
76 errno = 0;
77
78 ATF_REQUIRE(access(path, mode[i]) != 0);
79 ATF_REQUIRE(errno == EACCES);
80 }
81
82 ATF_REQUIRE(close(fd) == 0);
83 }
84
ATF_TC_CLEANUP(access_access,tc)85 ATF_TC_CLEANUP(access_access, tc)
86 {
87 (void)unlink(path);
88 }
89
90 ATF_TC(access_fault);
ATF_TC_HEAD(access_fault,tc)91 ATF_TC_HEAD(access_fault, tc)
92 {
93 atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT");
94 }
95
ATF_TC_BODY(access_fault,tc)96 ATF_TC_BODY(access_fault, tc)
97 {
98 size_t i;
99
100 for (i = 0; i < __arraycount(mode); i++) {
101
102 errno = 0;
103
104 ATF_REQUIRE(access(NULL, mode[i]) != 0);
105 ATF_REQUIRE(errno == EFAULT);
106
107 errno = 0;
108
109 ATF_REQUIRE(access((char *)-1, mode[i]) != 0);
110 ATF_REQUIRE(errno == EFAULT);
111 }
112 }
113
114 ATF_TC(access_inval);
ATF_TC_HEAD(access_inval,tc)115 ATF_TC_HEAD(access_inval, tc)
116 {
117 atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL");
118 }
119
ATF_TC_BODY(access_inval,tc)120 ATF_TC_BODY(access_inval, tc)
121 {
122
123 #if defined(__FreeBSD__) && __FreeBSD_version < 1100033
124 atf_tc_expect_fail("arguments to access aren't validated; see "
125 "bug # 181155 for more details");
126 #endif
127 errno = 0;
128
129 ATF_REQUIRE(access("/usr", -1) != 0);
130 ATF_REQUIRE(errno == EINVAL);
131 }
132
133 ATF_TC(access_notdir);
ATF_TC_HEAD(access_notdir,tc)134 ATF_TC_HEAD(access_notdir, tc)
135 {
136 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR");
137 }
138
ATF_TC_BODY(access_notdir,tc)139 ATF_TC_BODY(access_notdir, tc)
140 {
141 size_t i;
142
143 for (i = 0; i < __arraycount(mode); i++) {
144
145 errno = 0;
146
147 /*
148 * IEEE Std 1003.1-2008 about ENOTDIR:
149 *
150 * "A component of the path prefix is not a directory,
151 * or the path argument contains at least one non-<slash>
152 * character and ends with one or more trailing <slash>
153 * characters and the last pathname component names an
154 * existing file that is neither a directory nor a symbolic
155 * link to a directory."
156 */
157 ATF_REQUIRE(access("/etc/passwd//", mode[i]) != 0);
158 ATF_REQUIRE(errno == ENOTDIR);
159 }
160 }
161
162 ATF_TC(access_notexist);
ATF_TC_HEAD(access_notexist,tc)163 ATF_TC_HEAD(access_notexist, tc)
164 {
165 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT");
166 }
167
ATF_TC_BODY(access_notexist,tc)168 ATF_TC_BODY(access_notexist, tc)
169 {
170 size_t i;
171
172 for (i = 0; i < __arraycount(mode); i++) {
173
174 errno = 0;
175
176 ATF_REQUIRE(access("", mode[i]) != 0);
177 ATF_REQUIRE(errno == ENOENT);
178 }
179 }
180
181 ATF_TC(access_text);
ATF_TC_HEAD(access_text,tc)182 ATF_TC_HEAD(access_text, tc)
183 {
184 atf_tc_set_md_var(tc, "descr", "Test access(2) for ETXTBSY");
185 }
186
ATF_TC_BODY(access_text,tc)187 ATF_TC_BODY(access_text, tc)
188 {
189 char path[PATH_MAX];
190 size_t sz;
191 int fd, name[4];
192
193 name[0] = CTL_KERN;
194 name[1] = KERN_PROC;
195 name[2] = KERN_PROC_PATHNAME;
196 name[3] = -1;
197
198 sz = sizeof(path);
199 ATF_REQUIRE(sysctl(name, 4, path, &sz, NULL, 0) == 0);
200
201 fd = open(path, O_RDONLY);
202 ATF_REQUIRE(fd >= 0);
203
204 ATF_REQUIRE(access(path, W_OK) != 0);
205 ATF_REQUIRE(errno == ETXTBSY);
206
207 ATF_REQUIRE(faccessat(AT_FDCWD, path, W_OK, 0) != 0);
208 ATF_REQUIRE(errno == ETXTBSY);
209
210 ATF_REQUIRE(close(fd) == 0);
211 }
212
213 ATF_TC(access_toolong);
ATF_TC_HEAD(access_toolong,tc)214 ATF_TC_HEAD(access_toolong, tc)
215 {
216 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG");
217 }
218
ATF_TC_BODY(access_toolong,tc)219 ATF_TC_BODY(access_toolong, tc)
220 {
221 char *buf;
222 size_t i;
223
224 buf = malloc(PATH_MAX);
225
226 if (buf == NULL)
227 return;
228
229 for (i = 0; i < PATH_MAX; i++)
230 buf[i] = 'x';
231
232 for (i = 0; i < __arraycount(mode); i++) {
233
234 errno = 0;
235
236 ATF_REQUIRE(access(buf, mode[i]) != 0);
237 ATF_REQUIRE(errno == ENAMETOOLONG);
238 }
239
240 free(buf);
241 }
242
ATF_TP_ADD_TCS(tp)243 ATF_TP_ADD_TCS(tp)
244 {
245
246 ATF_TP_ADD_TC(tp, access_access);
247 ATF_TP_ADD_TC(tp, access_fault);
248 ATF_TP_ADD_TC(tp, access_inval);
249 ATF_TP_ADD_TC(tp, access_notdir);
250 ATF_TP_ADD_TC(tp, access_notexist);
251 ATF_TP_ADD_TC(tp, access_text);
252 ATF_TP_ADD_TC(tp, access_toolong);
253
254 return atf_no_error();
255 }
256