1 /* $NetBSD: t_mknodat.c,v 1.3 2013/03/17 04:46:06 jmmv 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 1.3 2013/03/17 04:46:06 jmmv 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(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 ATF_TC_BODY(mknodat_fd, tc) 71 { 72 int dfd; 73 int fd; 74 dev_t dev; 75 mode_t mode = S_IFCHR|0600; 76 77 ATF_REQUIRE((dev = get_devnull()) != NODEV); 78 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 79 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 80 ATF_REQUIRE((fd = mknodat(dfd, BASEFILE, mode, dev)) != -1); 81 ATF_REQUIRE(close(fd) == 0); 82 ATF_REQUIRE(access(FILE, F_OK) == 0); 83 #ifdef __FreeBSD__ 84 (void)close(dfd); 85 #endif 86 } 87 88 ATF_TC(mknodat_fdcwd); 89 ATF_TC_HEAD(mknodat_fdcwd, tc) 90 { 91 atf_tc_set_md_var(tc, "descr", 92 "See that mknodat works with fd as AT_FDCWD"); 93 atf_tc_set_md_var(tc, "require.user", "root"); 94 } 95 ATF_TC_BODY(mknodat_fdcwd, tc) 96 { 97 int fd; 98 dev_t dev; 99 mode_t mode = S_IFCHR|0600; 100 101 ATF_REQUIRE((dev = get_devnull()) != NODEV); 102 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 103 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILE, mode, dev)) != -1); 104 ATF_REQUIRE(close(fd) == 0); 105 ATF_REQUIRE(access(FILE, F_OK) == 0); 106 } 107 108 ATF_TC(mknodat_fdcwderr); 109 ATF_TC_HEAD(mknodat_fdcwderr, tc) 110 { 111 atf_tc_set_md_var(tc, "descr", 112 "See that mknodat fails with fd as AT_FDCWD and bad path"); 113 atf_tc_set_md_var(tc, "require.user", "root"); 114 } 115 ATF_TC_BODY(mknodat_fdcwderr, tc) 116 { 117 int fd; 118 dev_t dev; 119 mode_t mode = S_IFCHR|0600; 120 121 ATF_REQUIRE((dev = get_devnull()) != NODEV); 122 ATF_REQUIRE((fd = mknodat(AT_FDCWD, FILEERR, mode, dev)) == -1); 123 } 124 125 ATF_TC(mknodat_fderr); 126 ATF_TC_HEAD(mknodat_fderr, tc) 127 { 128 atf_tc_set_md_var(tc, "descr", "See that mknodat fails with fd as -1"); 129 atf_tc_set_md_var(tc, "require.user", "root"); 130 } 131 ATF_TC_BODY(mknodat_fderr, tc) 132 { 133 int fd; 134 dev_t dev; 135 mode_t mode = S_IFCHR|0600; 136 137 ATF_REQUIRE((dev = get_devnull()) != NODEV); 138 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 139 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 140 ATF_REQUIRE(close(fd) == 0); 141 ATF_REQUIRE((fd = mknodat(-1, FILE, mode, dev)) == -1); 142 } 143 144 ATF_TP_ADD_TCS(tp) 145 { 146 147 ATF_TP_ADD_TC(tp, mknodat_fd); 148 ATF_TP_ADD_TC(tp, mknodat_fdcwd); 149 ATF_TP_ADD_TC(tp, mknodat_fdcwderr); 150 ATF_TP_ADD_TC(tp, mknodat_fderr); 151 152 return atf_no_error(); 153 } 154