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