1 /* $NetBSD: t_mknod.c,v 1.2 2012/03/18 07:00:52 jruoho 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_mknod.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $"); 33 34 #include <sys/stat.h> 35 36 #include <atf-c.h> 37 #include <errno.h> 38 #include <fcntl.h> 39 #include <limits.h> 40 #include <paths.h> 41 #include <stdio.h> 42 #include <string.h> 43 #include <unistd.h> 44 45 static char path[] = "node"; 46 47 ATF_TC_WITH_CLEANUP(mknod_err); 48 ATF_TC_HEAD(mknod_err, tc) 49 { 50 atf_tc_set_md_var(tc, "descr", 51 "Test error conditions of mknod(2) (PR kern/45111)"); 52 atf_tc_set_md_var(tc, "require.user", "root"); 53 } 54 55 ATF_TC_BODY(mknod_err, tc) 56 { 57 char buf[PATH_MAX + 1]; 58 59 (void)memset(buf, 'x', sizeof(buf)); 60 61 errno = 0; 62 ATF_REQUIRE_ERRNO(EINVAL, mknod(path, S_IFCHR, -1) == -1); 63 64 errno = 0; 65 ATF_REQUIRE_ERRNO(ENAMETOOLONG, mknod(buf, S_IFCHR, 0) == -1); 66 67 errno = 0; 68 ATF_REQUIRE_ERRNO(EFAULT, mknod((char *)-1, S_IFCHR, 0) == -1); 69 70 errno = 0; 71 ATF_REQUIRE_ERRNO(ENOENT, mknod("/a/b/c/d/e/f/g", S_IFCHR, 0) == -1); 72 } 73 74 ATF_TC_CLEANUP(mknod_err, tc) 75 { 76 (void)unlink(path); 77 } 78 79 ATF_TC_WITH_CLEANUP(mknod_exist); 80 ATF_TC_HEAD(mknod_exist, tc) 81 { 82 atf_tc_set_md_var(tc, "descr", "Test EEXIST from mknod(2)"); 83 atf_tc_set_md_var(tc, "require.user", "root"); 84 } 85 86 ATF_TC_BODY(mknod_exist, tc) 87 { 88 int fd; 89 90 fd = open("/etc/passwd", O_RDONLY); 91 92 if (fd >= 0) { 93 94 (void)close(fd); 95 96 errno = 0; 97 ATF_REQUIRE_ERRNO(EEXIST, 98 mknod("/etc/passwd", S_IFCHR, 0) == -1); 99 } 100 101 ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0); 102 103 errno = 0; 104 ATF_REQUIRE_ERRNO(EEXIST, mknod(path, S_IFCHR, 0) == -1); 105 106 ATF_REQUIRE(unlink(path) == 0); 107 } 108 109 ATF_TC_CLEANUP(mknod_exist, tc) 110 { 111 (void)unlink(path); 112 } 113 114 ATF_TC_WITH_CLEANUP(mknod_perm); 115 ATF_TC_HEAD(mknod_perm, tc) 116 { 117 atf_tc_set_md_var(tc, "descr", "Test permissions of mknod(2)"); 118 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 119 } 120 121 ATF_TC_BODY(mknod_perm, tc) 122 { 123 124 errno = 0; 125 ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFCHR, 0) == -1); 126 127 errno = 0; 128 ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFBLK, 0) == -1); 129 } 130 131 ATF_TC_CLEANUP(mknod_perm, tc) 132 { 133 (void)unlink(path); 134 } 135 136 ATF_TC_WITH_CLEANUP(mknod_stat); 137 ATF_TC_HEAD(mknod_stat, tc) 138 { 139 atf_tc_set_md_var(tc, "descr", "A basic test of mknod(2)"); 140 atf_tc_set_md_var(tc, "require.user", "root"); 141 } 142 143 ATF_TC_BODY(mknod_stat, tc) 144 { 145 struct stat st; 146 147 (void)memset(&st, 0, sizeof(struct stat)); 148 149 ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0); 150 ATF_REQUIRE(stat(path, &st) == 0); 151 152 if (S_ISCHR(st.st_mode) == 0) 153 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFCHR)"); 154 155 ATF_REQUIRE(unlink(path) == 0); 156 157 (void)memset(&st, 0, sizeof(struct stat)); 158 159 ATF_REQUIRE(mknod(path, S_IFBLK, 0) == 0); 160 ATF_REQUIRE(stat(path, &st) == 0); 161 162 if (S_ISBLK(st.st_mode) == 0) 163 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFBLK)"); 164 165 ATF_REQUIRE(unlink(path) == 0); 166 167 (void)memset(&st, 0, sizeof(struct stat)); 168 169 ATF_REQUIRE(mknod(path, S_IFREG, 0) == 0); 170 ATF_REQUIRE(stat(path, &st) == 0); 171 172 if (S_ISREG(st.st_mode) == 0) 173 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFREG)"); 174 175 ATF_REQUIRE(unlink(path) == 0); 176 } 177 178 ATF_TC_CLEANUP(mknod_stat, tc) 179 { 180 (void)unlink(path); 181 } 182 183 ATF_TP_ADD_TCS(tp) 184 { 185 186 ATF_TP_ADD_TC(tp, mknod_err); 187 ATF_TP_ADD_TC(tp, mknod_exist); 188 ATF_TP_ADD_TC(tp, mknod_perm); 189 ATF_TP_ADD_TC(tp, mknod_stat); 190 191 return atf_no_error(); 192 } 193
Indexes created Sat Sep 20 22:09:52 GMT 2025