t_mknodat.c revision 1.1.2.3
1 /* $NetBSD: t_mknodat.c,v 1.1.2.3 2013/02/25 00:30:22 tls Exp $ */ 2 3 /*- 4 * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Emmanuel Dreyfus. 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_mknodat.c,v 1.1.2.3 2013/02/25 00:30:22 tls Exp $"); 33 34 #include <atf-c.h> 35 #include <errno.h> 36 #include <fcntl.h> 37 #include <limits.h> 38 #include <paths.h> 39 #include <stdio.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <sys/param.h> 43 #include <sys/stat.h> 44 45 #define DIR "dir" 46 #define FILE "dir/openat" 47 #define BASEFILE "openat" 48 #define FILEERR "dir/openaterr" 49 50 static dev_t get_devnull(void); 51 52 static dev_t 53 get_devnull(void) 54 { 55 struct stat st; 56 57 if (stat(_PATH_DEVNULL, &st) != 0) 58 return NODEV; 59 60 return st.st_rdev; 61 } 62 63 64 ATF_TC_WITH_CLEANUP(mknodat_fd); 65 ATF_TC_HEAD(mknodat_fd, tc) 66 { 67 atf_tc_set_md_var(tc, "descr", "See that mknodat works with fd"); 68 atf_tc_set_md_var(tc, "require.user", "root"); 69 } 70 71 ATF_TC_BODY(mknodat_fd, tc) 72 { 73 int dfd; 74 int fd; 75 dev_t dev; 76 mode_t mode = S_IFCHR|0600; 77 78 ATF_REQUIRE((dev = get_devnull()) != NODEV); 79 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 80 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 81 ATF_REQUIRE((fd = mknodat(dfd, BASEFILE, mode, dev)) != -1); 82 ATF_REQUIRE(close(fd) == 0); 83 ATF_REQUIRE(access(FILE, F_OK) == 0); 84 } 85 86 ATF_TC_CLEANUP(mknodat_fd, tc) 87 { 88 (void)unlink(FILE); 89 (void)unlink(FILEERR); 90 (void)rmdir(DIR); 91 } 92 93 94 ATF_TC_WITH_CLEANUP(mknodat_fdcwd); 95 ATF_TC_HEAD(mknodat_fdcwd, tc) 96 { 97 atf_tc_set_md_var(tc, "descr", 98 "See that mknodat works with fd as AT_FDCWD"); 99 atf_tc_set_md_var(tc, "require.user", "root"); 100 } 101 102 ATF_TC_BODY(mknodat_fdcwd, tc) 103 { 104 int fd; 105 dev_t dev; 106 mode_t mode = S_IFCHR|0600; 107 108 ATF_REQUIRE((dev = get_devnull()) != NODEV); 109 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 110 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILE, mode, dev)) != -1); 111 ATF_REQUIRE(close(fd) == 0); 112 ATF_REQUIRE(access(FILE, F_OK) == 0); 113 } 114 115 ATF_TC_CLEANUP(mknodat_fdcwd, tc) 116 { 117 (void)unlink(FILE); 118 (void)unlink(FILEERR); 119 (void)rmdir(DIR); 120 } 121 122 ATF_TC_WITH_CLEANUP(mknodat_fdcwderr); 123 ATF_TC_HEAD(mknodat_fdcwderr, tc) 124 { 125 atf_tc_set_md_var(tc, "descr", 126 "See that mknodat fails with fd as AT_FDCWD and bad path"); 127 atf_tc_set_md_var(tc, "require.user", "root"); 128 } 129 130 ATF_TC_BODY(mknodat_fdcwderr, tc) 131 { 132 int fd; 133 dev_t dev; 134 mode_t mode = S_IFCHR|0600; 135 136 ATF_REQUIRE((dev = get_devnull()) != NODEV); 137 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILEERR, mode, dev)) == -1); 138 } 139 140 ATF_TC_CLEANUP(mknodat_fdcwderr, tc) 141 { 142 (void)unlink(FILE); 143 (void)unlink(FILEERR); 144 (void)rmdir(DIR); 145 } 146 147 ATF_TC_WITH_CLEANUP(mknodat_fderr); 148 ATF_TC_HEAD(mknodat_fderr, tc) 149 { 150 atf_tc_set_md_var(tc, "descr", "See that mknodat fails with fd as -1"); 151 atf_tc_set_md_var(tc, "require.user", "root"); 152 } 153 154 ATF_TC_BODY(mknodat_fderr, tc) 155 { 156 int fd; 157 dev_t dev; 158 mode_t mode = S_IFCHR|0600; 159 160 ATF_REQUIRE((dev = get_devnull()) != NODEV); 161 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 162 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 163 ATF_REQUIRE(close(fd) == 0); 164 ATF_REQUIRE((fd = mknodat(-1, FILE, mode, dev)) == -1); 165 } 166 167 ATF_TC_CLEANUP(mknodat_fderr, tc) 168 { 169 (void)unlink(FILE); 170 (void)unlink(FILEERR); 171 (void)rmdir(DIR); 172 } 173 174 175 ATF_TP_ADD_TCS(tp) 176 { 177 178 ATF_TP_ADD_TC(tp, mknodat_fd); 179 ATF_TP_ADD_TC(tp, mknodat_fdcwd); 180 ATF_TP_ADD_TC(tp, mknodat_fdcwderr); 181 ATF_TP_ADD_TC(tp, mknodat_fderr); 182 183 return atf_no_error(); 184 } 185
Indexes created Thu Oct 02 14:10:14 GMT 2025