1 /* $NetBSD: t_unlinkat.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_unlinkat.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/unlinkat" 47 #define BASEFILE "unlinkat" 48 #define FILEERR "dir/unlinkaterr" 49 50 ATF_TC(unlinkat_fd); 51 ATF_TC_HEAD(unlinkat_fd, tc) 52 { 53 atf_tc_set_md_var(tc, "descr", "See that unlinkat works with fd"); 54 } 55 ATF_TC_BODY(unlinkat_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(unlinkat(dfd, BASEFILE, 0) == 0); 66 ATF_REQUIRE(close(dfd) == 0); 67 } 68 69 ATF_TC(unlinkat_fdcwd); 70 ATF_TC_HEAD(unlinkat_fdcwd, tc) 71 { 72 atf_tc_set_md_var(tc, "descr", 73 "See that unlinkat works with fd as AT_FDCWD"); 74 } 75 ATF_TC_BODY(unlinkat_fdcwd, tc) 76 { 77 int fd; 78 79 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 80 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 81 ATF_REQUIRE(close(fd) == 0); 82 83 ATF_REQUIRE(chdir(DIR) == 0); 84 ATF_REQUIRE(unlinkat(AT_FDCWD, BASEFILE, 0) == 0); 85 } 86 87 ATF_TC(unlinkat_fdcwderr); 88 ATF_TC_HEAD(unlinkat_fdcwderr, tc) 89 { 90 atf_tc_set_md_var(tc, "descr", 91 "See that unlinkat fails with fd as AT_FDCWD and bad path"); 92 } 93 ATF_TC_BODY(unlinkat_fdcwderr, tc) 94 { 95 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 96 ATF_REQUIRE(unlinkat(AT_FDCWD, FILEERR, 0) == -1); 97 } 98 99 ATF_TC(unlinkat_fderr1); 100 ATF_TC_HEAD(unlinkat_fderr1, tc) 101 { 102 atf_tc_set_md_var(tc, "descr", "See that unlinkat fail with bad path"); 103 } 104 ATF_TC_BODY(unlinkat_fderr1, tc) 105 { 106 int dfd; 107 108 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 109 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 110 ATF_REQUIRE(unlinkat(dfd, FILEERR, 0) == -1); 111 ATF_REQUIRE(close(dfd) == 0); 112 } 113 114 ATF_TC(unlinkat_fderr2); 115 ATF_TC_HEAD(unlinkat_fderr2, tc) 116 { 117 atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with bad fdat"); 118 } 119 ATF_TC_BODY(unlinkat_fderr2, tc) 120 { 121 int dfd; 122 int fd; 123 char cwd[MAXPATHLEN]; 124 125 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 126 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 127 ATF_REQUIRE(close(fd) == 0); 128 129 ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1); 130 ATF_REQUIRE(unlinkat(dfd, BASEFILE, 0) == -1); 131 ATF_REQUIRE(close(dfd) == 0); 132 } 133 134 ATF_TC(unlinkat_fderr3); 135 ATF_TC_HEAD(unlinkat_fderr3, tc) 136 { 137 atf_tc_set_md_var(tc, "descr", "See that unlinkat fails with fd as -1"); 138 } 139 ATF_TC_BODY(unlinkat_fderr3, tc) 140 { 141 int fd; 142 143 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 144 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 145 ATF_REQUIRE(close(fd) == 0); 146 147 ATF_REQUIRE(unlinkat(-1, FILE, 0) == -1); 148 } 149 150 ATF_TC(unlinkat_dir); 151 ATF_TC_HEAD(unlinkat_dir, tc) 152 { 153 atf_tc_set_md_var(tc, "descr", 154 "See that unlinkat can remove directories"); 155 } 156 ATF_TC_BODY(unlinkat_dir, tc) 157 { 158 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 159 160 ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, 0) == -1); 161 ATF_REQUIRE(errno == EPERM); 162 ATF_REQUIRE(unlinkat(AT_FDCWD, DIR, AT_REMOVEDIR) == 0); 163 } 164 165 ATF_TP_ADD_TCS(tp) 166 { 167 168 ATF_TP_ADD_TC(tp, unlinkat_fd); 169 ATF_TP_ADD_TC(tp, unlinkat_fdcwd); 170 ATF_TP_ADD_TC(tp, unlinkat_fdcwderr); 171 ATF_TP_ADD_TC(tp, unlinkat_fderr1); 172 ATF_TP_ADD_TC(tp, unlinkat_fderr2); 173 ATF_TP_ADD_TC(tp, unlinkat_fderr3); 174 ATF_TP_ADD_TC(tp, unlinkat_dir); 175 176 return atf_no_error(); 177 } 178