204 lines
4.6 KiB
C
204 lines
4.6 KiB
C
/*
|
|
*
|
|
* Copyright (c) International Business Machines Corp., 2001
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* NAME
|
|
* wait402.c
|
|
*
|
|
* DESCRIPTION
|
|
* wait402 - check for ECHILD errno when using an illegal pid value
|
|
*
|
|
* ALGORITHM
|
|
* loop if that option was specified
|
|
* issue the system call with an illegal pid value
|
|
* check the errno value
|
|
* issue a PASS message if we get ECHILD
|
|
* otherwise, the tests fails
|
|
* issue a FAIL message
|
|
* break any remaining tests
|
|
* call cleanup
|
|
*
|
|
* USAGE: <for command-line>
|
|
* wait402 [-c n] [-e] [-i n] [-I x] [-p x] [-t]
|
|
* where, -c n : Run n copies concurrently.
|
|
* -e : Turn on errno logging.
|
|
* -i n : Execute test n times.
|
|
* -I x : Execute test for x seconds.
|
|
* -P x : Pause for x seconds between iterations.
|
|
* -t : Turn on syscall timing.
|
|
*
|
|
* History
|
|
* 07/2001 John George
|
|
* -Ported
|
|
*
|
|
* Restrictions
|
|
* none
|
|
*/
|
|
|
|
#include "test.h"
|
|
#include "usctest.h"
|
|
|
|
#include <errno.h>
|
|
#define _USE_BSD
|
|
#include <sys/types.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/wait.h>
|
|
|
|
/*
|
|
* See the Makefile for comments about the following preprocessor code.
|
|
*/
|
|
#if defined (__CYGWIN__)
|
|
#define PID_MAX 0xfffffffd
|
|
#else
|
|
#ifndef _LTP_TASKS_H
|
|
#include <linux/threads.h> /* for PID_MAX value - new */
|
|
#else
|
|
#include <linux/tasks.h> /* for PID_MAX value - old */
|
|
#endif
|
|
#endif
|
|
|
|
void cleanup(void) __attribute__((noreturn));
|
|
void setup(void);
|
|
|
|
const char *TCID= "wait402()";
|
|
int TST_TOTAL = 1;
|
|
extern int Tst_count;
|
|
|
|
int exp_enos[] = {10, 0};
|
|
|
|
int
|
|
main(int ac, char **av)
|
|
{
|
|
int lc; /* loop counter */
|
|
const char *msg; /* message returned from parse_opts */
|
|
pid_t pid;
|
|
pid_t epid = PID_MAX + 1;
|
|
int status = 1;
|
|
struct rusage *rusage=NULL;
|
|
|
|
/* parse standard options */
|
|
if ((msg = parse_opts(ac, av, (option_t *) NULL, NULL)) != (char *) NULL) {
|
|
tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
|
|
}
|
|
|
|
setup(); /* global setup */
|
|
|
|
/* The following loop checks looping state if -i option given */
|
|
|
|
for (lc = 0; TEST_LOOPING(lc); lc++) {
|
|
/* reset Tst_count in case we are looping */
|
|
Tst_count = 0;
|
|
|
|
|
|
/*
|
|
* Allocate some space for the rusage structure.
|
|
*/
|
|
|
|
if ((rusage = (struct rusage *)malloc(sizeof(struct rusage)))
|
|
== NULL) {
|
|
tst_brkm(TBROK, cleanup, "malloc() failed");
|
|
}
|
|
|
|
pid = fork();
|
|
|
|
if (pid == -1) {
|
|
tst_brkm(TBROK, cleanup, "fork() failed");
|
|
}
|
|
|
|
if (pid == 0) { /* this is the child */
|
|
/*
|
|
* sleep for a moment to let us do the test
|
|
*/
|
|
sleep(1);
|
|
exit(0);
|
|
} else { /* this is the parent */
|
|
/*
|
|
* call wait4 with the TEST() macro. epid is set
|
|
* to an illegal positive value. This should give
|
|
* an ECHILD error.
|
|
*/
|
|
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));
|
|
}
|
|
|
|
TEST_ERROR_LOG(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));
|
|
}
|
|
|
|
/*
|
|
* Clean up things in case we are looping.
|
|
*/
|
|
if (pid > 0) {
|
|
wait4(pid, &status, 0, rusage);
|
|
}
|
|
free(rusage);
|
|
rusage = NULL;
|
|
}
|
|
|
|
cleanup();
|
|
|
|
/*NOTREACHED*/
|
|
}
|
|
|
|
/*
|
|
* setup() - performs all the ONE TIME setup for this test.
|
|
*/
|
|
void
|
|
setup(void)
|
|
{
|
|
/* capture signals */
|
|
tst_sig(FORK, DEF_HANDLER, cleanup);
|
|
|
|
/* Set up the expected error numbers for -e option */
|
|
TEST_EXP_ENOS(exp_enos);
|
|
|
|
/* Pause if that option was specified */
|
|
TEST_PAUSE;
|
|
}
|
|
|
|
/*
|
|
* cleanup() - performs all the ONE TIME cleanup for this test at completion
|
|
* or premature exit.
|
|
*/
|
|
void
|
|
cleanup(void)
|
|
{
|
|
/*
|
|
* print timing stats if that option was specified.
|
|
* print errno log if that option was specified.
|
|
*/
|
|
TEST_CLEANUP;
|
|
|
|
/* exit with return code appropriate for results */
|
|
tst_exit();
|
|
}
|
|
|