t_readlinkat.c revision 1.2.2.3
1 1.2.2.3 yamt /* $NetBSD: t_readlinkat.c,v 1.2.2.3 2014/05/22 11:42:20 yamt Exp $ */ 2 1.2.2.2 yamt 3 1.2.2.2 yamt /*- 4 1.2.2.2 yamt * Copyright (c) 2012 The NetBSD Foundation, Inc. 5 1.2.2.2 yamt * All rights reserved. 6 1.2.2.2 yamt * 7 1.2.2.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.2.2 yamt * by Emmanuel Dreyfus. 9 1.2.2.2 yamt * 10 1.2.2.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.2.2 yamt * modification, are permitted provided that the following conditions 12 1.2.2.2 yamt * are met: 13 1.2.2.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.2.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.2.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.2.2 yamt * 19 1.2.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.2.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.2.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.2.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.2.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.2.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.2.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.2.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.2.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.2.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.2.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.2.2 yamt */ 31 1.2.2.2 yamt #include <sys/cdefs.h> 32 1.2.2.3 yamt __RCSID("$NetBSD: t_readlinkat.c,v 1.2.2.3 2014/05/22 11:42:20 yamt Exp $"); 33 1.2.2.2 yamt 34 1.2.2.2 yamt #include <atf-c.h> 35 1.2.2.2 yamt #include <errno.h> 36 1.2.2.2 yamt #include <fcntl.h> 37 1.2.2.2 yamt #include <limits.h> 38 1.2.2.2 yamt #include <paths.h> 39 1.2.2.2 yamt #include <stdio.h> 40 1.2.2.2 yamt #include <string.h> 41 1.2.2.2 yamt #include <unistd.h> 42 1.2.2.2 yamt #include <sys/param.h> 43 1.2.2.2 yamt 44 1.2.2.2 yamt #define DIR "dir" 45 1.2.2.2 yamt #define FILE "dir/readlinkat" 46 1.2.2.2 yamt #define BASEFILE "readlinkat" 47 1.2.2.2 yamt #define LINK "dir/symlink" 48 1.2.2.2 yamt #define BASELINK "symlink" 49 1.2.2.2 yamt #define FILEERR "dir/readlinkaterr" 50 1.2.2.2 yamt 51 1.2.2.3 yamt ATF_TC(readlinkat_fd); 52 1.2.2.2 yamt ATF_TC_HEAD(readlinkat_fd, tc) 53 1.2.2.2 yamt { 54 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", "See that readlinkat works with fd"); 55 1.2.2.2 yamt } 56 1.2.2.2 yamt ATF_TC_BODY(readlinkat_fd, tc) 57 1.2.2.2 yamt { 58 1.2.2.2 yamt int dfd; 59 1.2.2.2 yamt int fd; 60 1.2.2.2 yamt ssize_t len; 61 1.2.2.2 yamt char buf[MAXPATHLEN]; 62 1.2.2.2 yamt 63 1.2.2.2 yamt ATF_REQUIRE(mkdir(DIR, 0755) == 0); 64 1.2.2.2 yamt ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 65 1.2.2.2 yamt ATF_REQUIRE(close(fd) == 0); 66 1.2.2.2 yamt ATF_REQUIRE(symlink(FILE, LINK) == 0); 67 1.2.2.2 yamt 68 1.2.2.2 yamt ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 69 1.2.2.2 yamt len = readlinkat(dfd, BASELINK, buf, sizeof(buf)-1); 70 1.2.2.2 yamt ATF_REQUIRE(len != -1); 71 1.2.2.2 yamt buf[len] = 0; 72 1.2.2.2 yamt ATF_REQUIRE(close(dfd) == 0); 73 1.2.2.2 yamt 74 1.2.2.2 yamt ATF_REQUIRE(strcmp(buf, FILE) == 0); 75 1.2.2.2 yamt } 76 1.2.2.2 yamt 77 1.2.2.3 yamt ATF_TC(readlinkat_fdcwd); 78 1.2.2.2 yamt ATF_TC_HEAD(readlinkat_fdcwd, tc) 79 1.2.2.2 yamt { 80 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", 81 1.2.2.2 yamt "See that readlinkat works with fd as AT_FDCWD"); 82 1.2.2.2 yamt } 83 1.2.2.2 yamt ATF_TC_BODY(readlinkat_fdcwd, tc) 84 1.2.2.2 yamt { 85 1.2.2.2 yamt int fd; 86 1.2.2.2 yamt ssize_t len; 87 1.2.2.2 yamt char buf[MAXPATHLEN]; 88 1.2.2.2 yamt 89 1.2.2.2 yamt ATF_REQUIRE(mkdir(DIR, 0755) == 0); 90 1.2.2.2 yamt ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 91 1.2.2.2 yamt ATF_REQUIRE(close(fd) == 0); 92 1.2.2.2 yamt ATF_REQUIRE(symlink(FILE, LINK) == 0); 93 1.2.2.2 yamt 94 1.2.2.2 yamt len = readlinkat(AT_FDCWD, LINK, buf, sizeof(buf)-1); 95 1.2.2.2 yamt ATF_REQUIRE(len != -1); 96 1.2.2.2 yamt buf[len] = 0; 97 1.2.2.2 yamt 98 1.2.2.2 yamt ATF_REQUIRE(strcmp(buf, FILE) == 0); 99 1.2.2.2 yamt } 100 1.2.2.2 yamt 101 1.2.2.3 yamt ATF_TC(readlinkat_fdcwderr); 102 1.2.2.2 yamt ATF_TC_HEAD(readlinkat_fdcwderr, tc) 103 1.2.2.2 yamt { 104 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", 105 1.2.2.2 yamt "See that readlinkat fails with fd as AT_FDCWD and bad path"); 106 1.2.2.2 yamt } 107 1.2.2.2 yamt ATF_TC_BODY(readlinkat_fdcwderr, tc) 108 1.2.2.2 yamt { 109 1.2.2.2 yamt char buf[MAXPATHLEN]; 110 1.2.2.2 yamt 111 1.2.2.2 yamt ATF_REQUIRE(readlinkat(AT_FDCWD, LINK, buf, sizeof(buf)) == -1); 112 1.2.2.2 yamt } 113 1.2.2.2 yamt 114 1.2.2.3 yamt ATF_TC(readlinkat_fderr1); 115 1.2.2.2 yamt ATF_TC_HEAD(readlinkat_fderr1, tc) 116 1.2.2.2 yamt { 117 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", "See that readlinkat fail with bad path"); 118 1.2.2.2 yamt } 119 1.2.2.2 yamt ATF_TC_BODY(readlinkat_fderr1, tc) 120 1.2.2.2 yamt { 121 1.2.2.2 yamt int dfd; 122 1.2.2.2 yamt 123 1.2.2.2 yamt ATF_REQUIRE(mkdir(DIR, 0755) == 0); 124 1.2.2.2 yamt ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 125 1.2.2.2 yamt ATF_REQUIRE(readlinkat(dfd, FILEERR, F_OK, 0) == -1); 126 1.2.2.2 yamt ATF_REQUIRE(close(dfd) == 0); 127 1.2.2.2 yamt } 128 1.2.2.2 yamt 129 1.2.2.3 yamt ATF_TC(readlinkat_fderr2); 130 1.2.2.2 yamt ATF_TC_HEAD(readlinkat_fderr2, tc) 131 1.2.2.2 yamt { 132 1.2.2.2 yamt atf_tc_set_md_var(tc, "descr", "See that readlinkat fails with fd as -1"); 133 1.2.2.2 yamt } 134 1.2.2.2 yamt ATF_TC_BODY(readlinkat_fderr2, tc) 135 1.2.2.2 yamt { 136 1.2.2.2 yamt int fd; 137 1.2.2.2 yamt char buf[MAXPATHLEN]; 138 1.2.2.2 yamt 139 1.2.2.2 yamt ATF_REQUIRE(mkdir(DIR, 0755) == 0); 140 1.2.2.2 yamt ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 141 1.2.2.2 yamt ATF_REQUIRE(close(fd) == 0); 142 1.2.2.2 yamt ATF_REQUIRE(symlink(FILE, LINK) == 0); 143 1.2.2.2 yamt 144 1.2.2.2 yamt ATF_REQUIRE(readlinkat(-1, LINK, buf, sizeof(buf)) == -1); 145 1.2.2.2 yamt } 146 1.2.2.2 yamt 147 1.2.2.2 yamt ATF_TP_ADD_TCS(tp) 148 1.2.2.2 yamt { 149 1.2.2.2 yamt 150 1.2.2.2 yamt ATF_TP_ADD_TC(tp, readlinkat_fd); 151 1.2.2.2 yamt ATF_TP_ADD_TC(tp, readlinkat_fdcwd); 152 1.2.2.2 yamt ATF_TP_ADD_TC(tp, readlinkat_fdcwderr); 153 1.2.2.2 yamt ATF_TP_ADD_TC(tp, readlinkat_fderr1); 154 1.2.2.2 yamt ATF_TP_ADD_TC(tp, readlinkat_fderr2); 155 1.2.2.2 yamt 156 1.2.2.2 yamt return atf_no_error(); 157 1.2.2.2 yamt } 158
Indexes created Tue Sep 30 20:09:53 GMT 2025