218 lines
6.3 KiB
C
218 lines
6.3 KiB
C
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/* $NetBSD: t_linkat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $ */
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/*-
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* Copyright (c) 2012 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_linkat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $");
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#include <atf-c.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <paths.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#define ODIR "olddir"
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#define NDIR "newdir"
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#define FILE "olddir/old"
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#define BASEFILE "old"
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#define RELFILE "../olddir/old"
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#define TARGET "newdir/new"
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#define BASETARGET "new"
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#define LINK "olddir/symlink"
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#define BASELINK "symlink"
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#define FILEERR "olddir/olderr"
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ATF_TC(linkat_fd);
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ATF_TC_HEAD(linkat_fd, tc)
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{
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atf_tc_set_md_var(tc, "descr", "See that linkat works with fd");
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}
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ATF_TC_BODY(linkat_fd, tc)
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{
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int ofd, nfd, fd;
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struct stat ost, nst;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE(linkat(ofd, BASEFILE, nfd, BASETARGET, 0) == 0);
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ATF_REQUIRE(close(ofd) == 0);
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ATF_REQUIRE(close(nfd) == 0);
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ATF_REQUIRE(stat(FILE, &ost) == 0);
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ATF_REQUIRE(stat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino == nst.st_ino);
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}
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ATF_TC(linkat_fdcwd);
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ATF_TC_HEAD(linkat_fdcwd, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"See that linkat works with fd as AT_FDCWD");
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}
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ATF_TC_BODY(linkat_fdcwd, tc)
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{
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int fd;
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struct stat ost, nst;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE(linkat(AT_FDCWD, FILE, AT_FDCWD, TARGET, 0) == 0);
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ATF_REQUIRE(stat(FILE, &ost) == 0);
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ATF_REQUIRE(stat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino == nst.st_ino);
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}
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ATF_TC(linkat_fdcwderr);
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ATF_TC_HEAD(linkat_fdcwderr, tc)
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{
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atf_tc_set_md_var(tc, "descr",
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"See that linkat fails with fd as AT_FDCWD and bad path");
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}
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ATF_TC_BODY(linkat_fdcwderr, tc)
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{
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int fd;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE(linkat(AT_FDCWD, FILEERR, AT_FDCWD, TARGET, 0) == -1);
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}
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ATF_TC(linkat_fderr);
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ATF_TC_HEAD(linkat_fderr, tc)
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{
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atf_tc_set_md_var(tc, "descr", "See that linkat fails with fd as -1");
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}
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ATF_TC_BODY(linkat_fderr, tc)
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{
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int fd;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE(linkat(-1, FILE, AT_FDCWD, TARGET, 0) == -1);
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ATF_REQUIRE(linkat(AT_FDCWD, FILE, -1, TARGET, 0) == -1);
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ATF_REQUIRE(linkat(-1, FILE, -1, TARGET, 0) == -1);
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}
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ATF_TC(linkat_fdlink1);
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ATF_TC_HEAD(linkat_fdlink1, tc)
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{
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atf_tc_set_md_var(tc, "descr", "See that linkat works on symlink target");
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}
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ATF_TC_BODY(linkat_fdlink1, tc)
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{
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int ofd, nfd, fd;
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struct stat ost, nst;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE(symlink(RELFILE, LINK) == 0);
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ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE(linkat(ofd, BASELINK, nfd, BASETARGET,
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AT_SYMLINK_FOLLOW) == 0);
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ATF_REQUIRE(close(ofd) == 0);
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ATF_REQUIRE(close(nfd) == 0);
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ATF_REQUIRE(lstat(LINK, &ost) == 0);
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ATF_REQUIRE(lstat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino != nst.st_ino);
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ATF_REQUIRE(lstat(FILE, &ost) == 0);
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ATF_REQUIRE(lstat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino == nst.st_ino);
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}
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ATF_TC(linkat_fdlink2);
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ATF_TC_HEAD(linkat_fdlink2, tc)
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{
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atf_tc_set_md_var(tc, "descr", "See that linkat works on symlink source");
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}
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ATF_TC_BODY(linkat_fdlink2, tc)
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{
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int ofd, nfd, fd;
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struct stat ost, nst;
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ATF_REQUIRE(mkdir(ODIR, 0755) == 0);
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ATF_REQUIRE(mkdir(NDIR, 0755) == 0);
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ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
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ATF_REQUIRE(close(fd) != -1);
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ATF_REQUIRE(symlink(RELFILE, LINK) == 0);
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ATF_REQUIRE((ofd = open(ODIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE((nfd = open(NDIR, O_RDONLY, 0)) != -1);
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ATF_REQUIRE(linkat(ofd, BASELINK, nfd, BASETARGET, 0) == 0);
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ATF_REQUIRE(close(ofd) == 0);
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ATF_REQUIRE(close(nfd) == 0);
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ATF_REQUIRE(lstat(LINK, &ost) == 0);
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ATF_REQUIRE(lstat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino == nst.st_ino);
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ATF_REQUIRE(lstat(FILE, &ost) == 0);
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ATF_REQUIRE(lstat(TARGET, &nst) == 0);
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ATF_REQUIRE(ost.st_ino != nst.st_ino);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, linkat_fd);
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ATF_TP_ADD_TC(tp, linkat_fdcwd);
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ATF_TP_ADD_TC(tp, linkat_fdcwderr);
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ATF_TP_ADD_TC(tp, linkat_fderr);
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ATF_TP_ADD_TC(tp, linkat_fdlink1);
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ATF_TP_ADD_TC(tp, linkat_fdlink2);
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return atf_no_error();
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}
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