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 49 static const char path[] = "access"; 50 static const int mode[4] = { R_OK, W_OK, X_OK, F_OK }; 51 52 ATF_TC_WITH_CLEANUP(access_access); 53 ATF_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 59 ATF_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 83 ATF_TC_CLEANUP(access_access, tc) 84 { 85 (void)unlink(path); 86 } 87 88 ATF_TC(access_fault); 89 ATF_TC_HEAD(access_fault, tc) 90 { 91 atf_tc_set_md_var(tc, "descr", "Test access(2) for EFAULT"); 92 } 93 94 ATF_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 } 111 112 ATF_TC(access_inval); 113 ATF_TC_HEAD(access_inval, tc) 114 { 115 atf_tc_set_md_var(tc, "descr", "Test access(2) for EINVAL"); 116 } 117 118 ATF_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 } 130 131 ATF_TC(access_notdir); 132 ATF_TC_HEAD(access_notdir, tc) 133 { 134 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOTDIR"); 135 } 136 137 ATF_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 } 159 160 ATF_TC(access_notexist); 161 ATF_TC_HEAD(access_notexist, tc) 162 { 163 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENOENT"); 164 } 165 166 ATF_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 } 178 179 ATF_TC(access_toolong); 180 ATF_TC_HEAD(access_toolong, tc) 181 { 182 atf_tc_set_md_var(tc, "descr", "Test access(2) for ENAMETOOLONG"); 183 } 184 185 ATF_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 } 208 209 ATF_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