t_mktemp.c revision 1.2
1 /* $NetBSD: t_mktemp.c,v 1.2 2020/07/01 05:37:25 jruoho 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 1.2 2020/07/01 05:37:25 jruoho 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 struct stat sa; 140 int fd; 141 142 (void)memset(&sa, 0, sizeof(struct stat)); 143 144 fd = mkstemps(template, 3); 145 146 ATF_REQUIRE(fd != -1); 147 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 148 149 char *str = strchr(template, 'y'); 150 151 ATF_REQUIRE(strcmp(str, "yyy") == 0); 152 ATF_REQUIRE(write(fd, "X", 1) == 1); 153 ATF_REQUIRE(fstat(fd, &sa) == 0); 154 ATF_REQUIRE(check_mode(sa, 0600, 0) == 0); 155 ATF_REQUIRE(close(fd) == 0); 156 ATF_REQUIRE(unlink(template) == 0); 157 } 158 159 ATF_TC(mkdtemp_basic); 160 ATF_TC_HEAD(mkdtemp_basic, tc) 161 { 162 atf_tc_set_md_var(tc, "descr", "A basic test of mkdtemp(3)"); 163 } 164 165 ATF_TC_BODY(mkdtemp_basic, tc) 166 { 167 char template[] = "/tmp/mktemp.XXXXXX"; 168 char *path = mkdtemp(template); 169 struct stat sa; 170 171 (void)memset(&sa, 0, sizeof(struct stat)); 172 173 ATF_REQUIRE(path != NULL); 174 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 175 ATF_REQUIRE(stat(path, &sa) == 0); 176 ATF_REQUIRE(check_mode(sa, 0700, 1) == 0); 177 ATF_REQUIRE(rmdir(path) == 0); 178 } 179 180 ATF_TC(mkostemp_basic); 181 ATF_TC_HEAD(mkostemp_basic, tc) 182 { 183 atf_tc_set_md_var(tc, "descr", "A basic test of mkostemp(3)"); 184 } 185 186 ATF_TC_BODY(mkostemp_basic, tc) 187 { 188 static const int flags[] = { 189 O_APPEND, O_DIRECT, 190 O_SHLOCK, O_EXLOCK, 191 O_SYNC, O_CLOEXEC 192 }; 193 194 char template[] = "/tmp/mktemp.XXXXXX"; 195 struct stat sa; 196 size_t i; 197 int fd; 198 199 for (i = 0; i < __arraycount(flags); i++) { 200 201 (void)memset(&sa, 0, sizeof(struct stat)); 202 203 fd = mkostemp(template, flags[i]); 204 205 ATF_REQUIRE(fd != -1); 206 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 207 ATF_REQUIRE(write(fd, "X", 1) == 1); 208 ATF_REQUIRE(fstat(fd, &sa) == 0); 209 ATF_REQUIRE(check_mode(sa, 0600 | flags[i], 0) == 0); 210 ATF_REQUIRE(close(fd) == 0); 211 ATF_REQUIRE(unlink(template) == 0); 212 } 213 } 214 215 ATF_TC(mkostemps_basic); 216 ATF_TC_HEAD(mkostemps_basic, tc) 217 { 218 atf_tc_set_md_var(tc, "descr", "A basic test of mkostemps(3)"); 219 } 220 221 ATF_TC_BODY(mkostemps_basic, tc) 222 { 223 static const int flags[] = { 224 O_APPEND, O_DIRECT, 225 O_SHLOCK, O_EXLOCK, 226 O_SYNC, O_CLOEXEC 227 }; 228 229 char template[] = "/tmp/mktemp.XXXyyy"; 230 struct stat sa; 231 size_t i; 232 int fd; 233 234 for (i = 0; i < __arraycount(flags); i++) { 235 236 (void)memset(&sa, 0, sizeof(struct stat)); 237 238 fd = mkostemps(template, 3, flags[i]); 239 240 ATF_REQUIRE(fd != -1); 241 ATF_REQUIRE(strncmp(template, "/tmp/mktemp.", 12) == 0); 242 243 char *str = strchr(template, 'y'); 244 245 ATF_REQUIRE(strcmp(str, "yyy") == 0); 246 ATF_REQUIRE(write(fd, "X", 1) == 1); 247 ATF_REQUIRE(fstat(fd, &sa) == 0); 248 ATF_REQUIRE(check_mode(sa, 0600 | flags[i], 0) == 0); 249 ATF_REQUIRE(close(fd) == 0); 250 ATF_REQUIRE(unlink(template) == 0); 251 } 252 } 253 254 ATF_TP_ADD_TCS(tp) 255 { 256 257 ATF_TP_ADD_TC(tp, mktemp_not_exist); 258 ATF_TP_ADD_TC(tp, mktemp_large_template); 259 ATF_TP_ADD_TC(tp, mkstemp_basic); 260 ATF_TP_ADD_TC(tp, mkstemps_basic); 261 ATF_TP_ADD_TC(tp, mkdtemp_basic); 262 ATF_TP_ADD_TC(tp, mkostemp_basic); 263 ATF_TP_ADD_TC(tp, mkostemps_basic); 264 265 return atf_no_error(); 266 } 267
Indexes created Wed Sep 24 15:09:51 GMT 2025