1 /* $NetBSD: t_openat.c,v 1.3 2017/01/10 15:13:56 christos 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_openat.c,v 1.3 2017/01/10 15:13:56 christos Exp $"); 33 34 #include <sys/param.h> 35 #include <sys/stat.h> 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 #define DIR "dir" 46 #define FILE "dir/openat" 47 #define BASEFILE "openat" 48 #define FILEERR "dir/openaterr" 49 50 ATF_TC(openat_fd); 51 ATF_TC_HEAD(openat_fd, tc) 52 { 53 atf_tc_set_md_var(tc, "descr", "See that openat works with fd"); 54 } 55 ATF_TC_BODY(openat_fd, tc) 56 { 57 int dfd; 58 int fd; 59 60 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 61 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 62 ATF_REQUIRE(close(fd) == 0); 63 64 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 65 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) != -1); 66 ATF_REQUIRE(close(dfd) == 0); 67 ATF_REQUIRE(close(fd) == 0); 68 } 69 70 ATF_TC(openat_fdcwd); 71 ATF_TC_HEAD(openat_fdcwd, tc) 72 { 73 atf_tc_set_md_var(tc, "descr", 74 "See that openat works with fd as AT_FDCWD"); 75 } 76 ATF_TC_BODY(openat_fdcwd, tc) 77 { 78 int fd; 79 80 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 81 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 82 ATF_REQUIRE(close(fd) == 0); 83 84 ATF_REQUIRE(chdir(DIR) == 0); 85 ATF_REQUIRE((fd = openat(AT_FDCWD, BASEFILE, O_RDONLY, 0)) != -1); 86 ATF_REQUIRE(close(fd) == 0); 87 } 88 89 ATF_TC(openat_fdcwderr); 90 ATF_TC_HEAD(openat_fdcwderr, tc) 91 { 92 atf_tc_set_md_var(tc, "descr", 93 "See that openat fails with fd as AT_FDCWD and bad path"); 94 } 95 ATF_TC_BODY(openat_fdcwderr, tc) 96 { 97 int fd; 98 99 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 100 ATF_REQUIRE((fd = openat(AT_FDCWD, FILEERR, O_RDONLY, 0)) == -1); 101 } 102 103 ATF_TC(openat_fderr1); 104 ATF_TC_HEAD(openat_fderr1, tc) 105 { 106 atf_tc_set_md_var(tc, "descr", "See that openat fail with bad path"); 107 } 108 ATF_TC_BODY(openat_fderr1, tc) 109 { 110 int dfd; 111 int fd; 112 113 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 114 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 115 ATF_REQUIRE((fd = openat(dfd, FILEERR, O_RDONLY, 0)) == -1); 116 ATF_REQUIRE(close(dfd) == 0); 117 } 118 119 ATF_TC(openat_fderr2); 120 ATF_TC_HEAD(openat_fderr2, tc) 121 { 122 atf_tc_set_md_var(tc, "descr", "See that openat fails with bad fdat"); 123 } 124 ATF_TC_BODY(openat_fderr2, tc) 125 { 126 int dfd; 127 int fd; 128 char cwd[MAXPATHLEN]; 129 130 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 131 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 132 ATF_REQUIRE(close(fd) == 0); 133 134 ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1); 135 ATF_REQUIRE((fd = openat(dfd, BASEFILE, O_RDONLY, 0)) == -1); 136 ATF_REQUIRE(close(dfd) == 0); 137 } 138 139 ATF_TC(openat_fderr3); 140 ATF_TC_HEAD(openat_fderr3, tc) 141 { 142 atf_tc_set_md_var(tc, "descr", "See that openat fails with fd as -1"); 143 } 144 ATF_TC_BODY(openat_fderr3, tc) 145 { 146 int fd; 147 148 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 149 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 150 ATF_REQUIRE(close(fd) == 0); 151 152 ATF_REQUIRE((fd = openat(-1, FILE, O_RDONLY, 0)) == -1); 153 } 154 155 ATF_TP_ADD_TCS(tp) 156 { 157 158 ATF_TP_ADD_TC(tp, openat_fd); 159 ATF_TP_ADD_TC(tp, openat_fdcwd); 160 ATF_TP_ADD_TC(tp, openat_fdcwderr); 161 ATF_TP_ADD_TC(tp, openat_fderr1); 162 ATF_TP_ADD_TC(tp, openat_fderr2); 163 ATF_TP_ADD_TC(tp, openat_fderr3); 164 165 return atf_no_error(); 166 } 167