1 /* $OpenBSD: t_access.c,v 1.2 2019/11/22 15:59:53 bluhm Exp $ */ 2 /* $NetBSD: t_access.c,v 1.3 2019/07/16 17:29:18 martin Exp $ */ 3 4 /*- 5 * Copyright (c) 2011 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jukka Ruohonen. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "macros.h" 34 35 #include <sys/cdefs.h> 36 __RCSID("$NetBSD: t_access.c,v 1.3 2019/07/16 17:29:18 martin Exp $"); 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, 0600); 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 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