159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
/* $NetBSD: t_unlink.c,v 1.4 2017/01/14 20:55:26 christos Exp $ */
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/*-
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* Copyright (c) 2011 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 Jukka Ruohonen.
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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_unlink.c,v 1.4 2017/01/14 20:55:26 christos Exp $");
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#include <sys/stat.h>
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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 <string.h>
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#include <unistd.h>
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static char path[] = "unlink";
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ATF_TC_WITH_CLEANUP(unlink_basic);
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ATF_TC_HEAD(unlink_basic, tc)
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{
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atf_tc_set_md_var(tc, "descr", "A basic test of unlink(2)");
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}
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ATF_TC_BODY(unlink_basic, tc)
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{
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const size_t n = 512;
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size_t i;
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int fd;
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for (i = 0; i < n; i++) {
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fd = open(path, O_RDWR | O_CREAT, 0666);
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ATF_REQUIRE(fd != -1);
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ATF_REQUIRE(close(fd) == 0);
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ATF_REQUIRE(unlink(path) == 0);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENOENT, open(path, O_RDONLY) == -1);
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}
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}
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ATF_TC_CLEANUP(unlink_basic, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(unlink_err);
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ATF_TC_HEAD(unlink_err, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test error conditions of unlink(2)");
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}
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ATF_TC_BODY(unlink_err, tc)
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{
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char buf[PATH_MAX + 1];
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(void)memset(buf, 'x', sizeof(buf));
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errno = 0;
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ATF_REQUIRE_ERRNO(EBUSY, unlink("/") == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENAMETOOLONG, unlink(buf) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENOENT, unlink("/a/b/c/d/e/f/g/h/i/j/k/l/m") == -1);
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}
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ATF_TC_CLEANUP(unlink_err, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(unlink_fifo);
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ATF_TC_HEAD(unlink_fifo, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test unlink(2) for a FIFO");
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}
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ATF_TC_BODY(unlink_fifo, tc)
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{
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ATF_REQUIRE(mkfifo(path, 0666) == 0);
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ATF_REQUIRE(unlink(path) == 0);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENOENT, open(path, O_RDONLY) == -1);
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}
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ATF_TC_CLEANUP(unlink_fifo, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(unlink_perm);
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ATF_TC_HEAD(unlink_perm, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test permissions with unlink(2)");
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atf_tc_set_md_var(tc, "require.user", "unprivileged");
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}
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ATF_TC_BODY(unlink_perm, tc)
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{
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int rv;
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errno = 0;
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rv = unlink("/etc");
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ATF_REQUIRE_MSG(rv == -1 && (errno == EACCES || errno == EPERM),
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"unlinking a directory did not fail with EPERM or EACCESS; "
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"unlink() returned %d, errno %d", rv, errno);
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errno = 0;
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ATF_REQUIRE_ERRNO(EACCES, unlink("/root/.profile") == -1);
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}
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ATF_TC_CLEANUP(unlink_perm, tc)
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{
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(void)unlink(path);
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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, unlink_basic);
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ATF_TP_ADD_TC(tp, unlink_err);
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ATF_TP_ADD_TC(tp, unlink_fifo);
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ATF_TP_ADD_TC(tp, unlink_perm);
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return atf_no_error();
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}
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