1272343Sngie/* $NetBSD: t_linkat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $ */ 2272343Sngie 3272343Sngie/*- 4272343Sngie * Copyright (c) 2012 The NetBSD Foundation, Inc. 5272343Sngie * All rights reserved. 6272343Sngie * 7272343Sngie * This code is derived from software contributed to The NetBSD Foundation 8272343Sngie * by Emmanuel Dreyfus. 9272343Sngie * 10272343Sngie * Redistribution and use in source and binary forms, with or without 11272343Sngie * modification, are permitted provided that the following conditions 12272343Sngie * are met: 13272343Sngie * 1. Redistributions of source code must retain the above copyright 14272343Sngie * notice, this list of conditions and the following disclaimer. 15272343Sngie * 2. Redistributions in binary form must reproduce the above copyright 16272343Sngie * notice, this list of conditions and the following disclaimer in the 17272343Sngie * documentation and/or other materials provided with the distribution. 18272343Sngie * 19272343Sngie * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20272343Sngie * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21272343Sngie * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22272343Sngie * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23272343Sngie * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24272343Sngie * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25272343Sngie * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26272343Sngie * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27272343Sngie * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28272343Sngie * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29272343Sngie * POSSIBILITY OF SUCH DAMAGE. 30272343Sngie */ 31272343Sngie#include <sys/cdefs.h> 32272343Sngie__RCSID("$NetBSD: t_linkat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $"); 33272343Sngie 34272343Sngie#include <atf-c.h> 35272343Sngie#include <errno.h> 36272343Sngie#include <fcntl.h> 37272343Sngie#include <limits.h> 38272343Sngie#include <paths.h> 39272343Sngie#include <stdio.h> 40272343Sngie#include <string.h> 41272343Sngie#include <unistd.h> 42272343Sngie#include <sys/param.h> 43272343Sngie#include <sys/stat.h> 44272343Sngie 45272343Sngie#define ODIR "olddir" 46272343Sngie#define NDIR "newdir" 47272343Sngie#define FILE "olddir/old" 48272343Sngie#define BASEFILE "old" 49272343Sngie#define RELFILE "../olddir/old" 50272343Sngie#define TARGET "newdir/new" 51272343Sngie#define BASETARGET "new" 52272343Sngie#define LINK "olddir/symlink" 53272343Sngie#define BASELINK "symlink" 54272343Sngie#define FILEERR "olddir/olderr" 55272343Sngie 56272343SngieATF_TC(linkat_fd); 57272343SngieATF_TC_HEAD(linkat_fd, tc) 58272343Sngie{ 59272343Sngie atf_tc_set_md_var(tc, "descr", "See that linkat works with fd"); 60272343Sngie} 61272343SngieATF_TC_BODY(linkat_fd, tc) 62272343Sngie{ 63272343Sngie int ofd, nfd, fd; 64272343Sngie struct stat ost, nst; 65272343Sngie 66272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 67272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 68272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 69272343Sngie ATF_REQUIRE(close(fd) != -1); 70272343Sngie 71272343Sngie ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1); 72272343Sngie ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1); 73272343Sngie ATF_REQUIRE(linkat(ofd, BASEFILE, nfd, BASETARGET, 0) == 0); 74272343Sngie ATF_REQUIRE(close(ofd) == 0); 75272343Sngie ATF_REQUIRE(close(nfd) == 0); 76272343Sngie 77272343Sngie ATF_REQUIRE(stat(FILE, &ost) == 0); 78272343Sngie ATF_REQUIRE(stat(TARGET, &nst) == 0); 79272343Sngie ATF_REQUIRE(ost.st_ino == nst.st_ino); 80272343Sngie} 81272343Sngie 82272343SngieATF_TC(linkat_fdcwd); 83272343SngieATF_TC_HEAD(linkat_fdcwd, tc) 84272343Sngie{ 85272343Sngie atf_tc_set_md_var(tc, "descr", 86272343Sngie "See that linkat works with fd as AT_FDCWD"); 87272343Sngie} 88272343SngieATF_TC_BODY(linkat_fdcwd, tc) 89272343Sngie{ 90272343Sngie int fd; 91272343Sngie struct stat ost, nst; 92272343Sngie 93272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 94272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 95272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 96272343Sngie ATF_REQUIRE(close(fd) != -1); 97272343Sngie 98272343Sngie ATF_REQUIRE(linkat(AT_FDCWD, FILE, AT_FDCWD, TARGET, 0) == 0); 99272343Sngie 100272343Sngie ATF_REQUIRE(stat(FILE, &ost) == 0); 101272343Sngie ATF_REQUIRE(stat(TARGET, &nst) == 0); 102272343Sngie ATF_REQUIRE(ost.st_ino == nst.st_ino); 103272343Sngie} 104272343Sngie 105272343SngieATF_TC(linkat_fdcwderr); 106272343SngieATF_TC_HEAD(linkat_fdcwderr, tc) 107272343Sngie{ 108272343Sngie atf_tc_set_md_var(tc, "descr", 109272343Sngie "See that linkat fails with fd as AT_FDCWD and bad path"); 110272343Sngie} 111272343SngieATF_TC_BODY(linkat_fdcwderr, tc) 112272343Sngie{ 113272343Sngie int fd; 114272343Sngie 115272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 116272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 117272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 118272343Sngie ATF_REQUIRE(close(fd) != -1); 119272343Sngie 120272343Sngie ATF_REQUIRE(linkat(AT_FDCWD, FILEERR, AT_FDCWD, TARGET, 0) == -1); 121272343Sngie} 122272343Sngie 123272343SngieATF_TC(linkat_fderr); 124272343SngieATF_TC_HEAD(linkat_fderr, tc) 125272343Sngie{ 126272343Sngie atf_tc_set_md_var(tc, "descr", "See that linkat fails with fd as -1"); 127272343Sngie} 128272343SngieATF_TC_BODY(linkat_fderr, tc) 129272343Sngie{ 130272343Sngie int fd; 131272343Sngie 132272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 133272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 134272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 135272343Sngie ATF_REQUIRE(close(fd) != -1); 136272343Sngie 137272343Sngie ATF_REQUIRE(linkat(-1, FILE, AT_FDCWD, TARGET, 0) == -1); 138272343Sngie ATF_REQUIRE(linkat(AT_FDCWD, FILE, -1, TARGET, 0) == -1); 139272343Sngie ATF_REQUIRE(linkat(-1, FILE, -1, TARGET, 0) == -1); 140272343Sngie} 141272343Sngie 142272343SngieATF_TC(linkat_fdlink1); 143272343SngieATF_TC_HEAD(linkat_fdlink1, tc) 144272343Sngie{ 145272343Sngie atf_tc_set_md_var(tc, "descr", "See that linkat works on symlink target"); 146272343Sngie} 147272343SngieATF_TC_BODY(linkat_fdlink1, tc) 148272343Sngie{ 149272343Sngie int ofd, nfd, fd; 150272343Sngie struct stat ost, nst; 151272343Sngie 152272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 153272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 154272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 155272343Sngie ATF_REQUIRE(close(fd) != -1); 156272343Sngie ATF_REQUIRE(symlink(RELFILE, LINK) == 0); 157272343Sngie 158272343Sngie ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1); 159272343Sngie ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1); 160272343Sngie ATF_REQUIRE(linkat(ofd, BASELINK, nfd, BASETARGET, 161272343Sngie AT_SYMLINK_FOLLOW) == 0); 162272343Sngie ATF_REQUIRE(close(ofd) == 0); 163272343Sngie ATF_REQUIRE(close(nfd) == 0); 164272343Sngie 165272343Sngie ATF_REQUIRE(lstat(LINK, &ost) == 0); 166272343Sngie ATF_REQUIRE(lstat(TARGET, &nst) == 0); 167272343Sngie ATF_REQUIRE(ost.st_ino != nst.st_ino); 168272343Sngie 169272343Sngie ATF_REQUIRE(lstat(FILE, &ost) == 0); 170272343Sngie ATF_REQUIRE(lstat(TARGET, &nst) == 0); 171272343Sngie ATF_REQUIRE(ost.st_ino == nst.st_ino); 172272343Sngie} 173272343Sngie 174272343Sngie 175272343SngieATF_TC(linkat_fdlink2); 176272343SngieATF_TC_HEAD(linkat_fdlink2, tc) 177272343Sngie{ 178272343Sngie atf_tc_set_md_var(tc, "descr", "See that linkat works on symlink source"); 179272343Sngie} 180272343SngieATF_TC_BODY(linkat_fdlink2, tc) 181272343Sngie{ 182272343Sngie int ofd, nfd, fd; 183272343Sngie struct stat ost, nst; 184272343Sngie 185272343Sngie ATF_REQUIRE(mkdir(ODIR, 0755) == 0); 186272343Sngie ATF_REQUIRE(mkdir(NDIR, 0755) == 0); 187272343Sngie ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1); 188272343Sngie ATF_REQUIRE(close(fd) != -1); 189272343Sngie ATF_REQUIRE(symlink(RELFILE, LINK) == 0); 190272343Sngie 191272343Sngie ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1); 192272343Sngie ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1); 193272343Sngie ATF_REQUIRE(linkat(ofd, BASELINK, nfd, BASETARGET, 0) == 0); 194272343Sngie ATF_REQUIRE(close(ofd) == 0); 195272343Sngie ATF_REQUIRE(close(nfd) == 0); 196272343Sngie 197272343Sngie ATF_REQUIRE(lstat(LINK, &ost) == 0); 198272343Sngie ATF_REQUIRE(lstat(TARGET, &nst) == 0); 199272343Sngie ATF_REQUIRE(ost.st_ino == nst.st_ino); 200272343Sngie 201272343Sngie ATF_REQUIRE(lstat(FILE, &ost) == 0); 202272343Sngie ATF_REQUIRE(lstat(TARGET, &nst) == 0); 203272343Sngie ATF_REQUIRE(ost.st_ino != nst.st_ino); 204272343Sngie} 205272343Sngie 206272343SngieATF_TP_ADD_TCS(tp) 207272343Sngie{ 208272343Sngie 209272343Sngie ATF_TP_ADD_TC(tp, linkat_fd); 210272343Sngie ATF_TP_ADD_TC(tp, linkat_fdcwd); 211272343Sngie ATF_TP_ADD_TC(tp, linkat_fdcwderr); 212272343Sngie ATF_TP_ADD_TC(tp, linkat_fderr); 213272343Sngie ATF_TP_ADD_TC(tp, linkat_fdlink1); 214272343Sngie ATF_TP_ADD_TC(tp, linkat_fdlink2); 215272343Sngie 216272343Sngie return atf_no_error(); 217272343Sngie} 218