t_fchmodat.c revision 1.5
1 /* $NetBSD: t_fchmodat.c,v 1.5 2024/07/10 19:23:56 rillig 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_fchmodat.c,v 1.5 2024/07/10 19:23:56 rillig 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/fchmodat" 47 #define BASEFILE "fchmodat" 48 #define LINK "dir/symlink" 49 #define BASELINK "symlink" 50 #define FILEERR "dir/fchmodaterr" 51 52 ATF_TC(fchmodat_fd); 53 ATF_TC_HEAD(fchmodat_fd, tc) 54 { 55 atf_tc_set_md_var(tc, "descr", "See that fchmodat works with fd"); 56 } 57 ATF_TC_BODY(fchmodat_fd, tc) 58 { 59 int dfd; 60 int fd; 61 struct stat st; 62 63 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 64 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 65 ATF_REQUIRE(close(fd) == 0); 66 67 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 68 ATF_REQUIRE(fchmodat(dfd, BASEFILE, 0600, 0) == 0); 69 ATF_REQUIRE(close(dfd) == 0); 70 71 ATF_REQUIRE(stat(FILE, &st) == 0); 72 ATF_REQUIRE(st.st_mode == 0600); 73 } 74 75 ATF_TC(fchmodat_fdcwd); 76 ATF_TC_HEAD(fchmodat_fdcwd, tc) 77 { 78 atf_tc_set_md_var(tc, "descr", 79 "See that fchmodat works with fd as AT_FDCWD"); 80 } 81 ATF_TC_BODY(fchmodat_fdcwd, tc) 82 { 83 int fd; 84 struct stat st; 85 86 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 87 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 88 ATF_REQUIRE(close(fd) == 0); 89 90 ATF_REQUIRE(chdir(DIR) == 0); 91 ATF_REQUIRE(fchmodat(AT_FDCWD, BASEFILE, 0600, 0) == 0); 92 93 ATF_REQUIRE(stat(BASEFILE, &st) == 0); 94 ATF_REQUIRE(st.st_mode == 0600); 95 } 96 97 ATF_TC(fchmodat_fdcwderr); 98 ATF_TC_HEAD(fchmodat_fdcwderr, tc) 99 { 100 atf_tc_set_md_var(tc, "descr", 101 "See that fchmodat fails with fd as AT_FDCWD and bad path"); 102 } 103 ATF_TC_BODY(fchmodat_fdcwderr, tc) 104 { 105 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 106 ATF_REQUIRE(fchmodat(AT_FDCWD, FILEERR, 0600, 0) == -1); 107 } 108 109 ATF_TC(fchmodat_fderr1); 110 ATF_TC_HEAD(fchmodat_fderr1, tc) 111 { 112 atf_tc_set_md_var(tc, "descr", "See that fchmodat fail with bad path"); 113 } 114 ATF_TC_BODY(fchmodat_fderr1, tc) 115 { 116 int dfd; 117 118 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 119 ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1); 120 ATF_REQUIRE(fchmodat(dfd, FILEERR, 0600, 0) == -1); 121 ATF_REQUIRE(close(dfd) == 0); 122 } 123 124 ATF_TC(fchmodat_fderr2); 125 ATF_TC_HEAD(fchmodat_fderr2, tc) 126 { 127 atf_tc_set_md_var(tc, "descr", "See that fchmodat fails with bad fdat"); 128 } 129 ATF_TC_BODY(fchmodat_fderr2, tc) 130 { 131 int dfd; 132 int fd; 133 char cwd[MAXPATHLEN]; 134 135 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 136 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 137 ATF_REQUIRE(close(fd) == 0); 138 139 ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1); 140 ATF_REQUIRE(fchmodat(dfd, BASEFILE, 0600, 0) == -1); 141 ATF_REQUIRE(close(dfd) == 0); 142 } 143 144 ATF_TC(fchmodat_fderr3); 145 ATF_TC_HEAD(fchmodat_fderr3, tc) 146 { 147 atf_tc_set_md_var(tc, "descr", "See that fchmodat fails with fd as -1"); 148 } 149 ATF_TC_BODY(fchmodat_fderr3, tc) 150 { 151 int fd; 152 153 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 154 ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 155 ATF_REQUIRE(close(fd) == 0); 156 157 ATF_REQUIRE(fchmodat(-1, FILE, 0600, 0) == -1); 158 } 159 160 ATF_TC(fchmodat_fdlink); 161 ATF_TC_HEAD(fchmodat_fdlink, tc) 162 { 163 atf_tc_set_md_var(tc, "descr", "See that fchmodat works on symlink"); 164 } 165 ATF_TC_BODY(fchmodat_fdlink, tc) 166 { 167 int dfdlink; 168 struct stat st; 169 170 ATF_REQUIRE(mkdir(DIR, 0755) == 0); 171 ATF_REQUIRE(symlink(FILE, LINK) == 0); 172 173 ATF_REQUIRE((dfdlink = open(DIR, O_RDONLY, 0)) != -1); 174 175 ATF_REQUIRE(fchmodat(dfdlink, BASELINK, 0600, 0) == -1); 176 ATF_REQUIRE(errno == ENOENT); 177 178 ATF_REQUIRE(fchmodat(dfdlink, BASELINK, 0600, AT_SYMLINK_NOFOLLOW) == 0); 179 180 ATF_REQUIRE(close(dfdlink) == 0); 181 182 ATF_REQUIRE(lstat(LINK, &st) == 0); 183 ATF_REQUIRE(st.st_mode == 0600); 184 } 185 186 ATF_TP_ADD_TCS(tp) 187 { 188 189 ATF_TP_ADD_TC(tp, fchmodat_fd); 190 ATF_TP_ADD_TC(tp, fchmodat_fdcwd); 191 ATF_TP_ADD_TC(tp, fchmodat_fdcwderr); 192 ATF_TP_ADD_TC(tp, fchmodat_fderr1); 193 ATF_TP_ADD_TC(tp, fchmodat_fderr2); 194 ATF_TP_ADD_TC(tp, fchmodat_fderr3); 195 ATF_TP_ADD_TC(tp, fchmodat_fdlink); 196 197 return atf_no_error(); 198 } 199
Indexes created Tue Sep 30 11:09:46 GMT 2025