1 /* $NetBSD: t_symlinkat.c,v 1.2 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_symlinkat.c,v 1.2 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 ODIR "olddir" 46 #define NDIR "newdir" 47 #define FILE "olddir/old" 48 #define BASEFILE "old" 49 #define RELFILE "../olddir/old" 50 #define LINK "newdir/symlink" 51 #define BASELINK "symlink" 52 #define FILEERR "olddir/olderr" 53 54 ATF_TC(symlinkat_fd); 55 ATF_TC_HEAD(symlinkat_fd, tc) 56 { 57 atf_tc_set_md_var(tc, "descr", "See that symlinkat works with fd"); 58 } 59 ATF_TC_BODY(symlinkat_fd, tc) 60 { 61 int dfd, fd; 62 struct stat ost, nst; 63 64 ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 65 ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 66 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 67 ATF_REQUIRE(close(fd) != -1); 68 69 ATF_REQUIRE((dfd = open(NDIR, O_RDONLY, 0)) != -1); 70 ATF_REQUIRE(symlinkat(RELFILE, dfd, BASELINK) == 0); 71 ATF_REQUIRE(close(dfd) == 0); 72 73 ATF_REQUIRE(stat(FILE, &ost) == 0); 74 ATF_REQUIRE(stat(LINK, &nst) == 0); 75 ATF_REQUIRE(ost.st_ino == nst.st_ino); 76 } 77 78 ATF_TC(symlinkat_fdcwd); 79 ATF_TC_HEAD(symlinkat_fdcwd, tc) 80 { 81 atf_tc_set_md_var(tc, "descr", 82 "See that symlinkat works with fd as AT_FDCWD"); 83 } 84 ATF_TC_BODY(symlinkat_fdcwd, tc) 85 { 86 int fd; 87 struct stat ost, nst; 88 89 ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 90 ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 91 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 92 ATF_REQUIRE(close(fd) != -1); 93 94 ATF_REQUIRE(symlinkat(RELFILE, AT_FDCWD, LINK) == 0); 95 96 ATF_REQUIRE(stat(FILE, &ost) == 0); 97 ATF_REQUIRE(stat(LINK, &nst) == 0); 98 ATF_REQUIRE(ost.st_ino == nst.st_ino); 99 } 100 101 ATF_TC(symlinkat_fdcwderr); 102 ATF_TC_HEAD(symlinkat_fdcwderr, tc) 103 { 104 atf_tc_set_md_var(tc, "descr", 105 "See that symlinkat works with fd as AT_FDCWD and bad path"); 106 } 107 ATF_TC_BODY(symlinkat_fdcwderr, tc) 108 { 109 int fd; 110 struct stat st; 111 112 ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 113 ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 114 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 115 ATF_REQUIRE(close(fd) != -1); 116 117 ATF_REQUIRE(symlinkat(FILEERR, AT_FDCWD, LINK) == 0); 118 ATF_REQUIRE(lstat(LINK, &st) == 0); 119 ATF_REQUIRE(stat(LINK, &st) == -1); 120 ATF_REQUIRE(errno == ENOENT); 121 122 } 123 124 ATF_TC(symlinkat_fderr); 125 ATF_TC_HEAD(symlinkat_fderr, tc) 126 { 127 atf_tc_set_md_var(tc, "descr", "See that symlinkat fails with fd as -1"); 128 } 129 ATF_TC_BODY(symlinkat_fderr, tc) 130 { 131 int fd; 132 133 ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 134 ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 135 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 136 ATF_REQUIRE(close(fd) != -1); 137 138 ATF_REQUIRE(symlinkat(RELFILE, -1, LINK) == -1); 139 } 140 141 ATF_TP_ADD_TCS(tp) 142 { 143 144 ATF_TP_ADD_TC(tp, symlinkat_fd); 145 ATF_TP_ADD_TC(tp, symlinkat_fdcwd); 146 ATF_TP_ADD_TC(tp, symlinkat_fdcwderr); 147 ATF_TP_ADD_TC(tp, symlinkat_fderr); 148 149 return atf_no_error(); 150 } 151