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/*
* This file is part of attach-p-cmd strace test.
*
* Copyright (c) 2016-2017 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "tests.h"
#include <errno.h>
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
#include "attach-p-cmd.h"
static void
write_pidfile(const pid_t pid)
{
FILE *fp = fopen(pidfile, "w");
if (!fp)
perror_msg_and_fail("fopen: %s", pidfile);
if (fprintf(fp, "%d", pid) < 0)
perror_msg_and_fail("fprintf: %s", pidfile);
if (fclose(fp))
perror_msg_and_fail("fclose: %s", pidfile);
}
static void
wait_for_peer_invocation(void)
{
/* wait for the lock directory to be created by peer */
while (rmdir(lockdir)) {
if (ENOENT != errno)
perror_msg_and_fail("rmdir: %s", lockdir);
}
}
int
main(void)
{
const pid_t pid = getpid();
write_pidfile(pid);
wait_for_peer_invocation();
static const char dir[] = "attach-p-cmd.test cmd";
int rc = chdir(dir);
printf("%-5d chdir(\"%s\") = %s\n"
"%-5d +++ exited with 0 +++\n",
pid, dir, sprintrc(rc), pid);
return 0;
}
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