Few tests for mkfifo(2).
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jruoho
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fc8b9ddc0c
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9b1f3701bf
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@ -1,4 +1,4 @@
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# $NetBSD: mi,v 1.362 2011/07/04 08:09:11 jruoho Exp $
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# $NetBSD: mi,v 1.363 2011/07/04 15:46:09 jruoho Exp $
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#
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# Note: don't delete entries from here - mark them as "obsolete" instead.
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#
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@ -636,6 +636,7 @@
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./usr/libdata/debug/usr/tests/syscall/t_kill.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_link.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mincore.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mkfifo.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mknod.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mmap.debug tests-syscall-debug debug,atf
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./usr/libdata/debug/usr/tests/syscall/t_mprotect.debug tests-syscall-debug debug,atf
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@ -2388,6 +2389,7 @@
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./usr/tests/syscall/t_kill tests-syscall-tests atf
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./usr/tests/syscall/t_link tests-syscall-tests atf
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./usr/tests/syscall/t_mincore tests-syscall-tests atf
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./usr/tests/syscall/t_mkfifo tests-syscall-tests atf
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./usr/tests/syscall/t_mknod tests-syscall-tests atf
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./usr/tests/syscall/t_mmap tests-syscall-tests atf
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./usr/tests/syscall/t_mprotect tests-syscall-tests atf
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.39 2011/07/04 08:09:11 jruoho Exp $
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# $NetBSD: Makefile,v 1.40 2011/07/04 15:46:10 jruoho Exp $
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.include <bsd.own.mk>
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@ -8,7 +8,8 @@ TESTS_C+= t_access t_chroot t_cmsg t_dup t_fsync
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TESTS_C+= t_getgroups t_getlogin t_getpid
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TESTS_C+= t_getrusage t_getsid t_gettimeofday
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TESTS_C+= t_issetugid t_itimer t_kill t_link
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TESTS_C+= t_mincore t_mknod t_mmap t_mprotect t_msync t_nanosleep
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TESTS_C+= t_mincore t_mkfifo t_mknod t_mmap
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TESTS_C+= t_mprotect t_msync t_nanosleep
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TESTS_C+= t_poll t_pollts t_pselect t_revoke
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TESTS_C+= t_setrlimit t_setuid t_stat t_timer t_truncate
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TESTS_C+= t_umask t_unlink
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@ -0,0 +1,280 @@
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/* $NetBSD: t_mkfifo.c,v 1.1 2011/07/04 15:46:10 jruoho 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_mkfifo.c,v 1.1 2011/07/04 15:46:10 jruoho Exp $");
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#include <sys/stat.h>
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#include <sys/wait.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 <stdlib.h>
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#include <signal.h>
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#include <string.h>
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#include <unistd.h>
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static const char path[] = "fifo";
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static void support(void);
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static void
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support(void)
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{
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errno = 0;
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if (mkfifo(path, 0600) == 0) {
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ATF_REQUIRE(unlink(path) == 0);
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return;
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}
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if (errno == EOPNOTSUPP)
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atf_tc_skip("the kernel does not support FIFOs");
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else {
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atf_tc_fail("mkfifo(2) failed");
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}
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}
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ATF_TC_WITH_CLEANUP(mkfifo_block);
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ATF_TC_HEAD(mkfifo_block, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test that FIFOs block");
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}
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ATF_TC_BODY(mkfifo_block, tc)
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{
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int fd[2], sta;
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pid_t pid;
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support();
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fd[0] = fd[1] = -1;
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ATF_REQUIRE(mkfifo(path, 0600) == 0);
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pid = fork();
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ATF_REQUIRE(pid >= 0);
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if (pid == 0) {
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/*
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* If we open the FIFO as read-only (write-only),
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* the call should block until another process
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* opens the FIFO for writing (reading).
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*/
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fd[0] = open(path, O_RDONLY);
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(void)pause();
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_exit(EXIT_SUCCESS); /* NOTREACHED */
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}
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(void)sleep(1);
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fd[1] = open(path, O_WRONLY);
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ATF_REQUIRE(kill(pid, SIGKILL) == 0);
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(void)wait(&sta);
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if (WIFSIGNALED(sta) == 0 || WTERMSIG(sta) != SIGKILL)
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atf_tc_fail("FIFO did not block");
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(void)close(fd[0]);
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(void)unlink(path);
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}
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ATF_TC_CLEANUP(mkfifo_block, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(mkfifo_err);
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ATF_TC_HEAD(mkfifo_err, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test erros from mkfifo(2)");
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}
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ATF_TC_BODY(mkfifo_err, tc)
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{
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char buf[PATH_MAX + 1];
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support();
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(void)memset(buf, 'x', sizeof(buf));
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ATF_REQUIRE(mkfifo(path, 0600) == 0);
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errno = 0;
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ATF_REQUIRE_ERRNO(EFAULT, mkfifo((char *)-1, 0600) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(EEXIST, mkfifo("/etc/passwd", 0600) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(EEXIST, mkfifo(path, 0600) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENAMETOOLONG, mkfifo(buf, 0600) == -1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENOENT, mkfifo("/a/b/c/d/e/f/g", 0600) == -1);
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ATF_REQUIRE(unlink(path) == 0);
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}
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ATF_TC_CLEANUP(mkfifo_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(mkfifo_nonblock);
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ATF_TC_HEAD(mkfifo_nonblock, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test O_NONBLOCK with FIFOs");
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}
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ATF_TC_BODY(mkfifo_nonblock, tc)
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{
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int fd, sta;
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pid_t pid;
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support();
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fd = -1;
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ATF_REQUIRE(mkfifo(path, 0600) == 0);
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pid = fork();
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ATF_REQUIRE(pid >= 0);
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if (pid == 0) {
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/*
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* If we open the FIFO as O_NONBLOCK, the O_RDONLY
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* call should return immediately, whereas the call
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* for write-only should fail with ENXIO.
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*/
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fd = open(path, O_RDONLY | O_NONBLOCK);
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if (fd >= 0)
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_exit(EXIT_SUCCESS);
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(void)pause(); /* NOTREACHED */
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}
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(void)sleep(1);
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errno = 0;
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ATF_REQUIRE_ERRNO(ENXIO, open(path, O_WRONLY | O_NONBLOCK) == -1);
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(void)kill(pid, SIGKILL);
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(void)wait(&sta);
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if (WIFSIGNALED(sta) != 0 || WTERMSIG(sta) == SIGKILL)
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atf_tc_fail("FIFO blocked for O_NONBLOCK open(2)");
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(void)close(fd);
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(void)unlink(path);
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}
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ATF_TC_CLEANUP(mkfifo_nonblock, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(mkfifo_perm);
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ATF_TC_HEAD(mkfifo_perm, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test permissions with mkfifo(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(mkfifo_perm, tc)
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{
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support();
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errno = 0;
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ATF_REQUIRE_ERRNO(EACCES, mkfifo("/root/fifo", 0600) == -1);
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ATF_REQUIRE(mkfifo(path, 0600) == 0);
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/*
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* For some reason this fails with EFTYPE...
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*/
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errno = 0;
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ATF_REQUIRE_ERRNO(EFTYPE, chmod(path, 1777) == -1);
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ATF_REQUIRE(unlink(path) == 0);
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}
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ATF_TC_CLEANUP(mkfifo_perm, tc)
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{
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(void)unlink(path);
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}
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ATF_TC_WITH_CLEANUP(mkfifo_stat);
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ATF_TC_HEAD(mkfifo_stat, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test mkfifo(2) with stat");
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}
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ATF_TC_BODY(mkfifo_stat, tc)
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{
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struct stat st;
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support();
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(void)memset(&st, 0, sizeof(struct stat));
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ATF_REQUIRE(mkfifo(path, 0600) == 0);
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ATF_REQUIRE(stat(path, &st) == 0);
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if (S_ISFIFO(st.st_mode) == 0)
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atf_tc_fail("invalid mode from mkfifo(2)");
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ATF_REQUIRE(unlink(path) == 0);
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}
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ATF_TC_CLEANUP(mkfifo_stat, 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, mkfifo_block);
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ATF_TP_ADD_TC(tp, mkfifo_err);
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ATF_TP_ADD_TC(tp, mkfifo_nonblock);
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ATF_TP_ADD_TC(tp, mkfifo_perm);
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ATF_TP_ADD_TC(tp, mkfifo_stat);
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return atf_no_error();
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}
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