1 /* $NetBSD: t_mknod.c,v 1.1 2011/07/07 06:57:54 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 1.1 2011/07/07 06:57:54 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", "Test error conditions of mknod(2)"); 51 atf_tc_set_md_var(tc, "require.user", "root"); 52 } 53 54 ATF_TC_BODY(mknod_err, tc) 55 { 56 char buf[PATH_MAX + 1]; 57 58 (void)memset(buf, 'x', sizeof(buf)); 59 60 /* 61 * See the old PR kern/45111. 62 */ 63 errno = 0; 64 ATF_REQUIRE_ERRNO(EINVAL, mknod(path, S_IFCHR, -1) == -1); 65 66 errno = 0; 67 ATF_REQUIRE_ERRNO(ENAMETOOLONG, mknod(buf, S_IFCHR, 0) == -1); 68 69 errno = 0; 70 ATF_REQUIRE_ERRNO(EFAULT, mknod((char *)-1, S_IFCHR, 0) == -1); 71 72 errno = 0; 73 ATF_REQUIRE_ERRNO(ENOENT, mknod("/a/b/c/d/e/f/g", S_IFCHR, 0) == -1); 74 } 75 76 ATF_TC_CLEANUP(mknod_err, tc) 77 { 78 (void)unlink(path); 79 } 80 81 ATF_TC_WITH_CLEANUP(mknod_exist); 82 ATF_TC_HEAD(mknod_exist, tc) 83 { 84 atf_tc_set_md_var(tc, "descr", "Test EEXIST from mknod(2)"); 85 atf_tc_set_md_var(tc, "require.user", "root"); 86 } 87 88 ATF_TC_BODY(mknod_exist, tc) 89 { 90 int fd; 91 92 fd = open("/etc/passwd", O_RDONLY); 93 94 if (fd >= 0) { 95 96 (void)close(fd); 97 98 errno = 0; 99 ATF_REQUIRE_ERRNO(EEXIST, 100 mknod("/etc/passwd", S_IFCHR, 0) == -1); 101 } 102 103 ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0); 104 105 errno = 0; 106 ATF_REQUIRE_ERRNO(EEXIST, mknod(path, S_IFCHR, 0) == -1); 107 108 ATF_REQUIRE(unlink(path) == 0); 109 } 110 111 ATF_TC_CLEANUP(mknod_exist, tc) 112 { 113 (void)unlink(path); 114 } 115 116 ATF_TC_WITH_CLEANUP(mknod_perm); 117 ATF_TC_HEAD(mknod_perm, tc) 118 { 119 atf_tc_set_md_var(tc, "descr", "Test permissions of mknod(2)"); 120 atf_tc_set_md_var(tc, "require.user", "unprivileged"); 121 } 122 123 ATF_TC_BODY(mknod_perm, tc) 124 { 125 126 errno = 0; 127 ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFCHR, 0) == -1); 128 129 errno = 0; 130 ATF_REQUIRE_ERRNO(EPERM, mknod(path, S_IFBLK, 0) == -1); 131 } 132 133 ATF_TC_CLEANUP(mknod_perm, tc) 134 { 135 (void)unlink(path); 136 } 137 138 ATF_TC_WITH_CLEANUP(mknod_stat); 139 ATF_TC_HEAD(mknod_stat, tc) 140 { 141 atf_tc_set_md_var(tc, "descr", "A basic test of mknod(2)"); 142 atf_tc_set_md_var(tc, "require.user", "root"); 143 } 144 145 ATF_TC_BODY(mknod_stat, tc) 146 { 147 struct stat st; 148 149 (void)memset(&st, 0, sizeof(struct stat)); 150 151 ATF_REQUIRE(mknod(path, S_IFCHR, 0) == 0); 152 ATF_REQUIRE(stat(path, &st) == 0); 153 154 if (S_ISCHR(st.st_mode) == 0) 155 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFCHR)"); 156 157 ATF_REQUIRE(unlink(path) == 0); 158 159 (void)memset(&st, 0, sizeof(struct stat)); 160 161 ATF_REQUIRE(mknod(path, S_IFBLK, 0) == 0); 162 ATF_REQUIRE(stat(path, &st) == 0); 163 164 if (S_ISBLK(st.st_mode) == 0) 165 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFBLK)"); 166 167 ATF_REQUIRE(unlink(path) == 0); 168 169 (void)memset(&st, 0, sizeof(struct stat)); 170 171 ATF_REQUIRE(mknod(path, S_IFREG, 0) == 0); 172 ATF_REQUIRE(stat(path, &st) == 0); 173 174 if (S_ISREG(st.st_mode) == 0) 175 atf_tc_fail_nonfatal("invalid mode from mknod(2) (S_IFREG)"); 176 177 ATF_REQUIRE(unlink(path) == 0); 178 } 179 180 ATF_TC_CLEANUP(mknod_stat, tc) 181 { 182 (void)unlink(path); 183 } 184 185 ATF_TP_ADD_TCS(tp) 186 { 187 188 ATF_TP_ADD_TC(tp, mknod_err); 189 ATF_TP_ADD_TC(tp, mknod_exist); 190 ATF_TP_ADD_TC(tp, mknod_perm); 191 ATF_TP_ADD_TC(tp, mknod_stat); 192 193 return atf_no_error(); 194 } 195