1 /* $NetBSD: t_pipe2.c,v 1.8 2012/05/16 13:54:28 jruoho Exp $ */
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the NetBSD
21 * Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 * contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
38 #include <sys/cdefs.h>
39 __RCSID("$NetBSD: t_pipe2.c,v 1.8 2012/05/16 13:54:28 jruoho Exp $");
46 #include <sys/resource.h>
53 while ((i = open("/", O_RDONLY)) < 3)
59 ATF_REQUIRE(fcntl(3, F_CLOSEM) != -1);
62 ATF_REQUIRE(pipe2(fd, flags) == 0);
64 ATF_REQUIRE(fd[0] == 3);
65 ATF_REQUIRE(fd[1] == 4);
67 if (flags & O_CLOEXEC) {
68 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
69 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
71 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
72 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
75 if (flags & O_NONBLOCK) {
76 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
77 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
79 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
80 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
84 if (flags & O_NOSIGPIPE) {
85 ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) != 0);
86 ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) != 0);
88 ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) == 0);
89 ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) == 0);
93 ATF_REQUIRE(close(fd[0]) != -1);
94 ATF_REQUIRE(close(fd[1]) != -1);
98 ATF_TC_HEAD(pipe2_basic, tc)
100 atf_tc_set_md_var(tc, "descr", "A basic test of pipe2(2)");
103 ATF_TC_BODY(pipe2_basic, tc)
108 ATF_TC(pipe2_consume);
109 ATF_TC_HEAD(pipe2_consume, tc)
111 atf_tc_set_md_var(tc, "descr", "Test that consuming file descriptors "
112 "with pipe2(2) does not crash the system (PR kern/46457)");
115 ATF_TC_BODY(pipe2_consume, tc)
124 err = fcntl(4, F_CLOSEM);
125 ATF_REQUIRE(err == 0);
128 err = getrlimit(RLIMIT_NOFILE, &rl);
129 ATF_REQUIRE(err == 0);
131 * The heart of this test is to run against the number of open
132 * file descriptor limit in the middle of a pipe2() call - i.e.
133 * before the call only a single descriptor may be openend.
139 err = setrlimit(RLIMIT_NOFILE, &rl);
140 ATF_REQUIRE(err == 0);
142 err = pipe2(filedes, O_CLOEXEC);
143 ATF_REQUIRE(err == -1);
146 err = setrlimit(RLIMIT_NOFILE, &rl);
150 ATF_TC(pipe2_nonblock);
151 ATF_TC_HEAD(pipe2_nonblock, tc)
153 atf_tc_set_md_var(tc, "descr", "A non-blocking test of pipe2(2)");
156 ATF_TC_BODY(pipe2_nonblock, tc)
161 ATF_TC(pipe2_cloexec);
162 ATF_TC_HEAD(pipe2_cloexec, tc)
164 atf_tc_set_md_var(tc, "descr", "A close-on-exec test of pipe2(2)");
167 ATF_TC_BODY(pipe2_cloexec, tc)
173 ATF_TC(pipe2_nosigpipe);
174 ATF_TC_HEAD(pipe2_nosigpipe, tc)
176 atf_tc_set_md_var(tc, "descr", "A no sigpipe test of pipe2(2)");
179 ATF_TC_BODY(pipe2_nosigpipe, tc)
185 ATF_TC(pipe2_einval);
186 ATF_TC_HEAD(pipe2_einval, tc)
188 atf_tc_set_md_var(tc, "descr", "A error check of pipe2(2)");
191 ATF_TC_BODY(pipe2_einval, tc)
194 ATF_REQUIRE_ERRNO(EINVAL, pipe2(fd, O_ASYNC) == -1);
200 ATF_TP_ADD_TC(tp, pipe2_basic);
201 ATF_TP_ADD_TC(tp, pipe2_consume);
202 ATF_TP_ADD_TC(tp, pipe2_nonblock);
203 ATF_TP_ADD_TC(tp, pipe2_cloexec);
205 ATF_TP_ADD_TC(tp, pipe2_nosigpipe);
207 ATF_TP_ADD_TC(tp, pipe2_einval);
209 return atf_no_error();