1 /* $NetBSD: t_pipe2.c,v 1.9 2017/01/13 21:19:45 christos 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 1.9 2017/01/13 21:19:45 christos Exp $");
46 #include <sys/resource.h>
53 while ((i = open("/", O_RDONLY)) < 3)
59 ATF_REQUIRE_MSG(closefrom(3) != -1, "closefrom failed: %s",
63 ATF_REQUIRE(pipe2(fd, flags) == 0);
65 ATF_REQUIRE(fd[0] == 3);
66 ATF_REQUIRE(fd[1] == 4);
68 if (flags & O_CLOEXEC) {
69 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) != 0);
70 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) != 0);
72 ATF_REQUIRE((fcntl(fd[0], F_GETFD) & FD_CLOEXEC) == 0);
73 ATF_REQUIRE((fcntl(fd[1], F_GETFD) & FD_CLOEXEC) == 0);
76 if (flags & O_NONBLOCK) {
77 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) != 0);
78 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) != 0);
80 ATF_REQUIRE((fcntl(fd[0], F_GETFL) & O_NONBLOCK) == 0);
81 ATF_REQUIRE((fcntl(fd[1], F_GETFL) & O_NONBLOCK) == 0);
85 if (flags & O_NOSIGPIPE) {
86 ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) != 0);
87 ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) != 0);
89 ATF_REQUIRE(fcntl(fd[0], F_GETNOSIGPIPE) == 0);
90 ATF_REQUIRE(fcntl(fd[1], F_GETNOSIGPIPE) == 0);
94 ATF_REQUIRE(close(fd[0]) != -1);
95 ATF_REQUIRE(close(fd[1]) != -1);
99 ATF_TC_HEAD(pipe2_basic, tc)
101 atf_tc_set_md_var(tc, "descr", "A basic test of pipe2(2)");
104 ATF_TC_BODY(pipe2_basic, tc)
109 ATF_TC(pipe2_consume);
110 ATF_TC_HEAD(pipe2_consume, tc)
112 atf_tc_set_md_var(tc, "descr", "Test that consuming file descriptors "
113 "with pipe2(2) does not crash the system (PR kern/46457)");
116 ATF_TC_BODY(pipe2_consume, tc)
125 ATF_REQUIRE_MSG(closefrom(4) != -1, "closefrom failed: %s",
129 err = getrlimit(RLIMIT_NOFILE, &rl);
130 ATF_REQUIRE(err == 0);
132 * The heart of this test is to run against the number of open
133 * file descriptor limit in the middle of a pipe2() call - i.e.
134 * before the call only a single descriptor may be openend.
138 err = setrlimit(RLIMIT_NOFILE, &rl);
139 ATF_REQUIRE(err == 0);
141 err = pipe2(filedes, O_CLOEXEC);
142 ATF_REQUIRE(err == -1);
144 err = setrlimit(RLIMIT_NOFILE, &rl);
147 ATF_TC(pipe2_nonblock);
148 ATF_TC_HEAD(pipe2_nonblock, tc)
150 atf_tc_set_md_var(tc, "descr", "A non-blocking test of pipe2(2)");
153 ATF_TC_BODY(pipe2_nonblock, tc)
158 ATF_TC(pipe2_cloexec);
159 ATF_TC_HEAD(pipe2_cloexec, tc)
161 atf_tc_set_md_var(tc, "descr", "A close-on-exec test of pipe2(2)");
164 ATF_TC_BODY(pipe2_cloexec, tc)
170 ATF_TC(pipe2_nosigpipe);
171 ATF_TC_HEAD(pipe2_nosigpipe, tc)
173 atf_tc_set_md_var(tc, "descr", "A no sigpipe test of pipe2(2)");
176 ATF_TC_BODY(pipe2_nosigpipe, tc)
182 ATF_TC(pipe2_einval);
183 ATF_TC_HEAD(pipe2_einval, tc)
185 atf_tc_set_md_var(tc, "descr", "A error check of pipe2(2)");
188 ATF_TC_BODY(pipe2_einval, tc)
191 ATF_REQUIRE_ERRNO(EINVAL, pipe2(fd, O_ASYNC) == -1);
197 ATF_TP_ADD_TC(tp, pipe2_basic);
198 ATF_TP_ADD_TC(tp, pipe2_consume);
199 ATF_TP_ADD_TC(tp, pipe2_nonblock);
200 ATF_TP_ADD_TC(tp, pipe2_cloexec);
202 ATF_TP_ADD_TC(tp, pipe2_nosigpipe);
204 ATF_TP_ADD_TC(tp, pipe2_einval);
206 return atf_no_error();