1*2c2f96dcSApple OSS Distributions /*
2*2c2f96dcSApple OSS Distributions * Copyright (c) 2019 Apple Computer, Inc. All rights reserved.
3*2c2f96dcSApple OSS Distributions *
4*2c2f96dcSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*2c2f96dcSApple OSS Distributions *
6*2c2f96dcSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*2c2f96dcSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*2c2f96dcSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*2c2f96dcSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*2c2f96dcSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*2c2f96dcSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*2c2f96dcSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*2c2f96dcSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*2c2f96dcSApple OSS Distributions *
15*2c2f96dcSApple OSS Distributions * Please obtain a copy of the License at
16*2c2f96dcSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*2c2f96dcSApple OSS Distributions *
18*2c2f96dcSApple OSS Distributions * The Original Code and all software distributed under the License are
19*2c2f96dcSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*2c2f96dcSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*2c2f96dcSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*2c2f96dcSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*2c2f96dcSApple OSS Distributions * Please see the License for the specific language governing rights and
24*2c2f96dcSApple OSS Distributions * limitations under the License.
25*2c2f96dcSApple OSS Distributions *
26*2c2f96dcSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*2c2f96dcSApple OSS Distributions */
28*2c2f96dcSApple OSS Distributions
29*2c2f96dcSApple OSS Distributions #include <darwintest.h>
30*2c2f96dcSApple OSS Distributions #include <darwintest_multiprocess.h>
31*2c2f96dcSApple OSS Distributions #include <stdio.h>
32*2c2f96dcSApple OSS Distributions #include <unistd.h>
33*2c2f96dcSApple OSS Distributions #include <sys/wait.h>
34*2c2f96dcSApple OSS Distributions #include <pthread.h>
35*2c2f96dcSApple OSS Distributions #include <stdlib.h>
36*2c2f96dcSApple OSS Distributions #include <signal.h>
37*2c2f96dcSApple OSS Distributions
38*2c2f96dcSApple OSS Distributions static void
signal_handler(int sig,siginfo_t * sip __unused,void * ucontext __unused)39*2c2f96dcSApple OSS Distributions signal_handler(int sig, siginfo_t *sip __unused, void *ucontext __unused)
40*2c2f96dcSApple OSS Distributions {
41*2c2f96dcSApple OSS Distributions if (sig == SIGPIPE) {
42*2c2f96dcSApple OSS Distributions T_FAIL("Received SIGPIPE");
43*2c2f96dcSApple OSS Distributions }
44*2c2f96dcSApple OSS Distributions
45*2c2f96dcSApple OSS Distributions exit(141);
46*2c2f96dcSApple OSS Distributions }
47*2c2f96dcSApple OSS Distributions
48*2c2f96dcSApple OSS Distributions static void *
thread_read(void * arg)49*2c2f96dcSApple OSS Distributions thread_read(void *arg)
50*2c2f96dcSApple OSS Distributions {
51*2c2f96dcSApple OSS Distributions int fd = (int) (uintptr_t)arg;
52*2c2f96dcSApple OSS Distributions char buf[10];
53*2c2f96dcSApple OSS Distributions
54*2c2f96dcSApple OSS Distributions read(fd, buf, 10);
55*2c2f96dcSApple OSS Distributions T_LOG("thread returned from read");
56*2c2f96dcSApple OSS Distributions return 0;
57*2c2f96dcSApple OSS Distributions }
58*2c2f96dcSApple OSS Distributions
59*2c2f96dcSApple OSS Distributions T_DECL(pipe_drain,
60*2c2f96dcSApple OSS Distributions "test a pipe with multiple read descriptor could close one descriptor and drain that descriptor")
61*2c2f96dcSApple OSS Distributions {
62*2c2f96dcSApple OSS Distributions int pipe_fd[2];
63*2c2f96dcSApple OSS Distributions int dup_fd;
64*2c2f96dcSApple OSS Distributions int ret;
65*2c2f96dcSApple OSS Distributions char buf[10] = "Hello";
66*2c2f96dcSApple OSS Distributions pthread_t thread;
67*2c2f96dcSApple OSS Distributions
68*2c2f96dcSApple OSS Distributions /* Install the signal handler for SIGPIPE */
69*2c2f96dcSApple OSS Distributions
70*2c2f96dcSApple OSS Distributions struct sigaction sa = {
71*2c2f96dcSApple OSS Distributions .sa_sigaction = signal_handler,
72*2c2f96dcSApple OSS Distributions .sa_flags = SA_SIGINFO
73*2c2f96dcSApple OSS Distributions };
74*2c2f96dcSApple OSS Distributions sigfillset(&sa.sa_mask);
75*2c2f96dcSApple OSS Distributions
76*2c2f96dcSApple OSS Distributions T_QUIET; T_ASSERT_POSIX_ZERO(sigaction(SIGPIPE, &sa, NULL), NULL);
77*2c2f96dcSApple OSS Distributions
78*2c2f96dcSApple OSS Distributions ret = pipe(pipe_fd);
79*2c2f96dcSApple OSS Distributions T_EXPECT_EQ(ret, 0, NULL);
80*2c2f96dcSApple OSS Distributions
81*2c2f96dcSApple OSS Distributions dup_fd = dup(pipe_fd[0]);
82*2c2f96dcSApple OSS Distributions T_EXPECT_GE(dup_fd, 0, NULL);
83*2c2f96dcSApple OSS Distributions
84*2c2f96dcSApple OSS Distributions pthread_create(&thread, NULL, thread_read, (void *) (uintptr_t) pipe_fd[0]);
85*2c2f96dcSApple OSS Distributions
86*2c2f96dcSApple OSS Distributions sleep(5);
87*2c2f96dcSApple OSS Distributions
88*2c2f96dcSApple OSS Distributions close(pipe_fd[0]);
89*2c2f96dcSApple OSS Distributions ret = (int)write(pipe_fd[1], buf, strlen(buf) + 1);
90*2c2f96dcSApple OSS Distributions T_EXPECT_EQ(ret, (int)strlen(buf) + 1, NULL);
91*2c2f96dcSApple OSS Distributions }
92