107 lines
2.7 KiB
Bash
Executable File
107 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2013 EMC Corp.
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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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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# wait4(2) / ptrace(2) regression test.
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > ptrace.c
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mycc -o ptrace -Wall -Wextra -g ptrace.c || exit 1
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rm -f ptrace.c
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cd $here
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/tmp/ptrace
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rm -f /tmp/ptrace
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exit
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EOF
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#include <sys/types.h>
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#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <strings.h>
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#include <sys/ptrace.h>
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#include <sys/wait.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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void
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test(void)
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{
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pid_t pid, rpid;
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struct rusage ru;
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int status;
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if ((pid = fork()) == 0) {
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usleep(2000);
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_exit(64);
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}
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if (pid == -1)
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err(1, "fork()");
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if (ptrace(PT_ATTACH, pid, NULL, 0) == -1)
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err(1, "ptrace(%d) attach", pid);
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if (wait(NULL) == -1)
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err(1, "wait");
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bzero(&ru, sizeof(ru));
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usleep(2000);
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if ((rpid = wait4(-1, &status, WNOHANG, &ru)) == -1) {
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if (errno == ECHILD)
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warn("FAIL");
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else
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err(1, "wait4");
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}
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if (rpid == 0) {
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// fprintf(stderr, "No rusage info.\n");
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if (ptrace(PT_DETACH, pid, NULL, 0) == -1)
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err(1, "ptrace(%d) detach", pid);
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if (wait(&status) == -1)
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err(1, "wait");
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} else {
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fprintf(stderr, "FAIL Got unexpected rusage.\n");
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if (ru.ru_utime.tv_sec != 0)
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fprintf(stderr, "FAIL tv_sec\n");
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}
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if (status != 0x4000)
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fprintf(stderr, "FAIL Child exit status 0x%x\n", status);
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_exit(0);
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}
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int
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main(void)
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{
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test();
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return (0);
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}
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