99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
/*
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* Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "tests.h"
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#include <assert.h>
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#include <signal.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <sys/resource.h>
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int
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main(void)
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{
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int fds[2];
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int s;
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pid_t pid;
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struct rusage rusage = {};
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siginfo_t info = {};
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(void) close(0);
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(void) close(1);
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if (pipe(fds))
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perror_msg_and_fail("pipe");
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pid = fork();
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if (pid < 0)
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perror_msg_and_fail("fork");
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if (!pid) {
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char c;
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(void) close(1);
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assert(read(0, &c, sizeof(c)) == 1);
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return 42;
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}
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(void) close(0);
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assert(wait4(pid, &s, WNOHANG | __WALL, NULL) == 0);
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assert(waitid(P_PID, pid, &info, WNOHANG | WEXITED) == 0);
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assert(write(1, "", 1) == 1);
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(void) close(1);
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assert(wait4(pid, &s, 0, &rusage) == pid);
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assert(WIFEXITED(s) && WEXITSTATUS(s) == 42);
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pid = fork();
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if (pid < 0)
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perror_msg_and_fail("fork");
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if (!pid) {
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(void) raise(SIGUSR1);
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return 1;
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}
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assert(wait4(pid, &s, __WALL, NULL) == pid);
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assert(WIFSIGNALED(s) && WTERMSIG(s) == SIGUSR1);
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pid = fork();
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if (pid < 0)
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perror_msg_and_fail("fork");
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if (!pid) {
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raise(SIGSTOP);
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return 0;
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}
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assert(wait4(pid, &s, WUNTRACED, NULL) == pid);
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assert(WIFSTOPPED(s) && WSTOPSIG(s) == SIGSTOP);
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assert(kill(pid, SIGCONT) == 0);
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assert(waitid(P_PID, pid, &info, WEXITED | WSTOPPED) == 0);
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assert(info.si_code == CLD_EXITED && info.si_status == 0);
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assert(wait4(-1, &s, WNOHANG | WUNTRACED | __WALL, &rusage) == -1);
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return 0;
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}
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