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/*
*
* Copyright (c) International Business Machines Corp., 2001
* Copyright (c) 2012 Cyril Hrubis <chrubis@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* wait402 - check for ECHILD errno when using an illegal pid value
*/
#include "test.h"
#include <errno.h>
#define _USE_BSD
#include <sys/types.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <string.h>
char *TCID = "wait402";
int TST_TOTAL = 1;
static void cleanup(void);
static void setup(void);
static long get_pid_max(void)
{
long pid_max;
SAFE_FILE_SCANF(NULL, "/proc/sys/kernel/pid_max", "%ld", &pid_max);
return pid_max;
}
int main(int ac, char **av)
{
int lc;
pid_t epid = get_pid_max() + 1;
int status = 1;
struct rusage rusage;
tst_parse_opts(ac, av, NULL, NULL);
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
TEST(wait4(epid, &status, 0, &rusage));
if (TEST_RETURN == 0) {
tst_brkm(TFAIL, cleanup,
"call failed to produce expected error - errno = %d - %s",
TEST_ERRNO, strerror(TEST_ERRNO));
}
switch (TEST_ERRNO) {
case ECHILD:
tst_resm(TPASS,
"received expected failure - errno = %d - %s",
TEST_ERRNO, strerror(TEST_ERRNO));
break;
default:
tst_brkm(TFAIL, cleanup,
"call failed to produce expected "
"error - errno = %d - %s", TEST_ERRNO,
strerror(TEST_ERRNO));
}
}
cleanup();
tst_exit();
}
static void setup(void)
{
tst_sig(FORK, DEF_HANDLER, cleanup);
TEST_PAUSE;
}
static void cleanup(void)
{
}
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