1 /* $NetBSD: t_mktemp.c,v 1.3 2020/11/01 18:19:54 gson Exp $ */ 2 3 /*- 4 * Copyright (c) 2013, 2020 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas and 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_mktemp.c,v 1.3 2020/11/01 18:19:54 gson Exp $"); 33 34 #include <sys/stat.h> 35 36 #include <atf-c.h> 37 #include <fcntl.h> 38 #include <limits.h> 39 #include <stdio.h> 40 #include <stdlib.h> 41 #include <unistd.h> 42 43 static int 44 check_mode(struct stat sa, const int mode, const int dir) 45 { 46 47 if (dir == 0 && S_ISREG(sa.st_mode) == 0) 48 return -1; 49 50 if (dir != 0 && S_ISDIR(sa.st_mode) == 0) 51 return -1; 52 53 if ((sa.st_mode & mode) == 0) 54 return -1; 55 56 return 0; 57 } 58 59 ATF_TC(mktemp_not_exist); 60 ATF_TC_HEAD(mktemp_not_exist, tc) 61 { 62 atf_tc_set_md_var(tc, "descr", "Test that mktemp(3)" 63 " does not fail on a path that does not exist"); 64 } 65 66 ATF_TC_BODY(mktemp_not_exist, tc) 67 { 68 char template[] = "I will barf/XXXXXX"; 69 ATF_REQUIRE(mktemp(template) != NULL); 70 } 71 72 ATF_TC(mktemp_large_template); 73 ATF_TC_HEAD(mktemp_large_template, tc) 74 { 75 atf_tc_set_md_var(tc, "descr", "Test that mktemp " 76 "accepts arbitrarily large templates (PR lib/55441)"); 77 } 78 79 ATF_TC_BODY(mktemp_large_template, tc) 80 { 81 const char *path = "/tmp/mktemp.XXXXXX"; 82 char template[PATH_MAX] = { 0 }; 83 size_t i; 84 85 atf_tc_expect_fail("PR lib/55441"); 86 87 ATF_REQUIRE(strcpy(template, path) != NULL); 88 ATF_REQUIRE(mktemp(template) != NULL); 89 ATF_REQUIRE(strlen(template) == strlen(path)); 90 ATF_REQUIRE(strcmp(template, path) != 0); 91 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 92 93 (void)memset(template, '\0', sizeof(template)); 94 (void)strcpy(template, "/tmp/mktemp."); 95 96 for (i = 12; i < sizeof(template) - 1; i++) 97 template[i] = 'X'; 98 99 ATF_REQUIRE(mktemp(template) != NULL); 100 ATF_REQUIRE(strlen(template) == sizeof(template) - 1); 101 ATF_REQUIRE(strcmp(template, path) != 0); 102 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 103 } 104 105 ATF_TC(mkstemp_basic); 106 ATF_TC_HEAD(mkstemp_basic, tc) 107 { 108 atf_tc_set_md_var(tc, "descr", "A basic test of mkstemp(3)"); 109 } 110 111 ATF_TC_BODY(mkstemp_basic, tc) 112 { 113 char template[] = "/tmp/mktemp.XXXXXX"; 114 struct stat sa; 115 int fd; 116 117 (void)memset(&sa, 0, sizeof(struct stat)); 118 119 fd = mkstemp(template); 120 121 ATF_REQUIRE(fd != -1); 122 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 123 ATF_REQUIRE(write(fd, "X", 1) == 1); 124 ATF_REQUIRE(fstat(fd, &sa) == 0); 125 ATF_REQUIRE(check_mode(sa, 0600, 0) == 0); 126 ATF_REQUIRE(close(fd) == 0); 127 ATF_REQUIRE(unlink(template) == 0); 128 } 129 130 ATF_TC(mkstemps_basic); 131 ATF_TC_HEAD(mkstemps_basic, tc) 132 { 133 atf_tc_set_md_var(tc, "descr", "A basic test of mkstemps(3)"); 134 } 135 136 ATF_TC_BODY(mkstemps_basic, tc) 137 { 138 char template[] = "/tmp/mktemp.XXXyyy"; 139 char *suffix = strchr(template, 'y'); 140 struct stat sa; 141 int fd; 142 143 (void)memset(&sa, 0, sizeof(struct stat)); 144 145 fd = mkstemps(template, 3); 146 147 ATF_REQUIRE(fd != -1); 148 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 149 ATF_REQUIRE(strcmp(suffix, "yyy") == 0); 150 ATF_REQUIRE(write(fd, "X", 1) == 1); 151 ATF_REQUIRE(fstat(fd, &sa) == 0); 152 ATF_REQUIRE(check_mode(sa, 0600, 0) == 0); 153 ATF_REQUIRE(close(fd) == 0); 154 ATF_REQUIRE(unlink(template) == 0); 155 } 156 157 ATF_TC(mkdtemp_basic); 158 ATF_TC_HEAD(mkdtemp_basic, tc) 159 { 160 atf_tc_set_md_var(tc, "descr", "A basic test of mkdtemp(3)"); 161 } 162 163 ATF_TC_BODY(mkdtemp_basic, tc) 164 { 165 char template[] = "/tmp/mktemp.XXXXXX"; 166 char *path = mkdtemp(template); 167 struct stat sa; 168 169 (void)memset(&sa, 0, sizeof(struct stat)); 170 171 ATF_REQUIRE(path != NULL); 172 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 173 ATF_REQUIRE(stat(path, &sa) == 0); 174 ATF_REQUIRE(check_mode(sa, 0700, 1) == 0); 175 ATF_REQUIRE(rmdir(path) == 0); 176 } 177 178 ATF_TC(mkostemp_basic); 179 ATF_TC_HEAD(mkostemp_basic, tc) 180 { 181 atf_tc_set_md_var(tc, "descr", "A basic test of mkostemp(3)"); 182 } 183 184 ATF_TC_BODY(mkostemp_basic, tc) 185 { 186 static const int flags[] = { 187 O_APPEND, O_DIRECT, 188 O_SHLOCK, O_EXLOCK, 189 O_SYNC, O_CLOEXEC 190 }; 191 192 char template[] = "/tmp/mktemp.XXXXXX"; 193 struct stat sa; 194 size_t i; 195 int fd; 196 197 for (i = 0; i < __arraycount(flags); i++) { 198 199 (void)memset(&sa, 0, sizeof(struct stat)); 200 201 fd = mkostemp(template, flags[i]); 202 203 ATF_REQUIRE(fd != -1); 204 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 205 ATF_REQUIRE(write(fd, "X", 1) == 1); 206 ATF_REQUIRE(fstat(fd, &sa) == 0); 207 ATF_REQUIRE(check_mode(sa, 0600 | flags[i], 0) == 0); 208 ATF_REQUIRE(close(fd) == 0); 209 ATF_REQUIRE(unlink(template) == 0); 210 } 211 } 212 213 ATF_TC(mkostemps_basic); 214 ATF_TC_HEAD(mkostemps_basic, tc) 215 { 216 atf_tc_set_md_var(tc, "descr", "A basic test of mkostemps(3)"); 217 } 218 219 ATF_TC_BODY(mkostemps_basic, tc) 220 { 221 static const int flags[] = { 222 O_APPEND, O_DIRECT, 223 O_SHLOCK, O_EXLOCK, 224 O_SYNC, O_CLOEXEC 225 }; 226 227 char template[] = "/tmp/mktemp.XXXyyy"; 228 char *suffix = strchr(template, 'y'); 229 struct stat sa; 230 size_t i; 231 int fd; 232 233 for (i = 0; i < __arraycount(flags); i++) { 234 235 (void)memset(&sa, 0, sizeof(struct stat)); 236 237 fd = mkostemps(template, 3, flags[i]); 238 239 ATF_REQUIRE(fd != -1); 240 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 241 ATF_REQUIRE(strcmp(suffix, "yyy") == 0); 242 ATF_REQUIRE(write(fd, "X", 1) == 1); 243 ATF_REQUIRE(fstat(fd, &sa) == 0); 244 ATF_REQUIRE(check_mode(sa, 0600 | flags[i], 0) == 0); 245 ATF_REQUIRE(close(fd) == 0); 246 ATF_REQUIRE(unlink(template) == 0); 247 } 248 } 249 250 ATF_TP_ADD_TCS(tp) 251 { 252 253 ATF_TP_ADD_TC(tp, mktemp_not_exist); 254 ATF_TP_ADD_TC(tp, mktemp_large_template); 255 ATF_TP_ADD_TC(tp, mkstemp_basic); 256 ATF_TP_ADD_TC(tp, mkstemps_basic); 257 ATF_TP_ADD_TC(tp, mkdtemp_basic); 258 ATF_TP_ADD_TC(tp, mkostemp_basic); 259 ATF_TP_ADD_TC(tp, mkostemps_basic); 260 261 return atf_no_error(); 262 } 263