diff options
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/sys/t_pipe2.c')
| -rw-r--r-- | contrib/netbsd-tests/lib/libc/sys/t_pipe2.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/lib/libc/sys/t_pipe2.c b/contrib/netbsd-tests/lib/libc/sys/t_pipe2.c new file mode 100644 index 0000000..8208cf7 --- /dev/null +++ b/contrib/netbsd-tests/lib/libc/sys/t_pipe2.c @@ -0,0 +1,210 @@ +/* $NetBSD: t_pipe2.c,v 1.8 2012/05/16 13:54:28 jruoho Exp $ */ + +/*- + * Copyright (c) 2011 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#include <sys/cdefs.h> +__RCSID("$NetBSD: t_pipe2.c,v 1.8 2012/05/16 13:54:28 jruoho Exp $"); + +#include <atf-c.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/resource.h> + +static void +run(int flags) +{ + int fd[2], i; + + while ((i = open("/", O_RDONLY)) < 3) + ATF_REQUIRE(i != -1); + +#ifdef __FreeBSD__ + closefrom(3); +#else + ATF_REQUIRE(fcntl(3, F_CLOSEM) != -1); +#endif + + ATF_REQUIRE(pipe2(fd, flags) == 0); + + ATF_REQUIRE(fd[0] == 3); + ATF_REQUIRE(fd[1] == 4); + + if (flags & O_CLOEXEC) { + ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0); + ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0); + } else { + ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0); + ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0); + } + + if (flags & O_NONBLOCK) { + ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0); + ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0); + } else { + ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0); + ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0); + } + +#ifndef __FreeBSD__ + if (flags & O_NOSIGPIPE) { + ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) != 0); + ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) != 0); + } else { + ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) == 0); + ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) == 0); + } +#endif + + ATF_REQUIRE(close(fd[0]) != -1); + ATF_REQUIRE(close(fd[1]) != -1); +} + +ATF_TC(pipe2_basic); +ATF_TC_HEAD(pipe2_basic, tc) +{ + atf_tc_set_md_var(tc, "descr", "A basic test of pipe2(2)"); +} + +ATF_TC_BODY(pipe2_basic, tc) +{ + run(0); +} + +ATF_TC(pipe2_consume); +ATF_TC_HEAD(pipe2_consume, tc) +{ + atf_tc_set_md_var(tc, "descr", "Test that consuming file descriptors " + "with pipe2(2) does not crash the system (PR kern/46457)"); +} + +ATF_TC_BODY(pipe2_consume, tc) +{ + struct rlimit rl; + int err, filedes[2]; +#ifdef __FreeBSD__ + int old; + + closefrom(4); +#else + err = fcntl(4, F_CLOSEM); + ATF_REQUIRE(err == 0); +#endif + + err = getrlimit(RLIMIT_NOFILE, &rl); + ATF_REQUIRE(err == 0); + /* + * The heart of this test is to run against the number of open + * file descriptor limit in the middle of a pipe2() call - i.e. + * before the call only a single descriptor may be openend. + */ +#ifdef __FreeBSD__ + old = rl.rlim_cur; +#endif + rl.rlim_cur = 4; + err = setrlimit(RLIMIT_NOFILE, &rl); + ATF_REQUIRE(err == 0); + + err = pipe2(filedes, O_CLOEXEC); + ATF_REQUIRE(err == -1); +#ifdef __FreeBSD__ + rl.rlim_cur = old; + err = setrlimit(RLIMIT_NOFILE, &rl); +#endif +} + +ATF_TC(pipe2_nonblock); +ATF_TC_HEAD(pipe2_nonblock, tc) +{ + atf_tc_set_md_var(tc, "descr", "A non-blocking test of pipe2(2)"); +} + +ATF_TC_BODY(pipe2_nonblock, tc) +{ + run(O_NONBLOCK); +} + +ATF_TC(pipe2_cloexec); +ATF_TC_HEAD(pipe2_cloexec, tc) +{ + atf_tc_set_md_var(tc, "descr", "A close-on-exec test of pipe2(2)"); +} + +ATF_TC_BODY(pipe2_cloexec, tc) +{ + run(O_CLOEXEC); +} + +#ifdef __NetBSD__ +ATF_TC(pipe2_nosigpipe); +ATF_TC_HEAD(pipe2_nosigpipe, tc) +{ + atf_tc_set_md_var(tc, "descr", "A no sigpipe test of pipe2(2)"); +} + +ATF_TC_BODY(pipe2_nosigpipe, tc) +{ + run(O_NOSIGPIPE); +} +#endif + +ATF_TC(pipe2_einval); +ATF_TC_HEAD(pipe2_einval, tc) +{ + atf_tc_set_md_var(tc, "descr", "A error check of pipe2(2)"); +} + +ATF_TC_BODY(pipe2_einval, tc) +{ + int fd[2]; + ATF_REQUIRE_ERRNO(EINVAL, pipe2(fd, O_ASYNC) == -1); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, pipe2_basic); + ATF_TP_ADD_TC(tp, pipe2_consume); + ATF_TP_ADD_TC(tp, pipe2_nonblock); + ATF_TP_ADD_TC(tp, pipe2_cloexec); +#ifdef __NetBSD__ + ATF_TP_ADD_TC(tp, pipe2_nosigpipe); +#endif + ATF_TP_ADD_TC(tp, pipe2_einval); + + return atf_no_error(); +} |
