testcases/kernel/syscalls/exit_group/exit_group01.c

/******************************************************************************/
/* Copyright (c) Crackerjack Project., 2007                                   */
/*                                                                            */
/* 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    */
/*                                                                            */
/******************************************************************************/
/******************************************************************************/
/*                                                                            */
/* File:        exit_group01.c                                           */
/*                                                                            */
/* Description: This tests the exit_group() syscall                      */
/*                                                                            */
/* Usage:  <for command-line>                                                 */
/* exit_group01 [-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.                                */
/*                                                                            */
/* Total Tests: 1                                                             */
/*                                                                            */
/* Test Name:   exit_group01                                             */
/* History:     Porting from Crackerjack to LTP is done by                    */
/*              Manas Kumar Nayak maknayak@in.ibm.com>                        */
/******************************************************************************/

#include <stdio.h>
#include <errno.h>
#include <linux/unistd.h>
#include <sys/wait.h>

#include "test.h"
#include "linux_syscall_numbers.h"

char *TCID = "exit_group01";
int testno;
int TST_TOTAL = 1;

/* Extern Global Functions */
/******************************************************************************/
/*                                                                            */
/* Function:    cleanup                                                       */
/*                                                                            */
/* Description: Performs all one time clean up for this test on successful    */
/*              completion,  premature exit or  failure. Closes all temporary */
/*              files, removes all temporary directories exits the test with  */
/*              appropriate return code by calling tst_exit() function.       */
/*                                                                            */
/* Input:       None.                                                         */
/*                                                                            */
/* Output:      None.                                                         */
/*                                                                            */
/* Return:      On failure - Exits calling tst_exit(). Non '0' return code.   */
/*              On success - Exits calling tst_exit(). With '0' return code.  */
/*                                                                            */
/******************************************************************************/
void cleanup(void)
{

	tst_rmdir();
}

/* Local  Functions */
/******************************************************************************/
/*                                                                            */
/* Function:    setup                                                         */
/*                                                                            */
/* Description: Performs all one time setup for this test. This function is   */
/*              typically used to capture signals, create temporary dirs      */
/*              and temporary files that may be used in the course of this    */
/*              test.                                                         */
/*                                                                            */
/* Input:       None.                                                         */
/*                                                                            */
/* Output:      None.                                                         */
/*                                                                            */
/* Return:      On failure - Exits by calling cleanup().                      */
/*              On success - returns 0.                                       */
/*                                                                            */
/******************************************************************************/
void setup(void)
{
	/* Capture signals if any */
	/* Create temporary directories */
	TEST_PAUSE;
	tst_tmpdir();
}

int main(int ac, char **av)
{
	int status;
	pid_t cpid, w;

	setup();

	cpid = fork();		//call exit_group()
	if (cpid == -1) {
		tst_brkm(TFAIL | TERRNO, cleanup, "fork failed");
	} else if (cpid == 0) {
		sleep(5);
		TEST(ltp_syscall(__NR_exit_group, 4));
	} else {
		w = wait(&status);
		if (w == -1)
			tst_brkm(TBROK | TERRNO, cleanup, "wait failed");
		if (WIFEXITED(status) && (WEXITSTATUS(status) == 4))
			tst_resm(TPASS, "exit_group succeeded");
		else {
			tst_resm(TFAIL | TERRNO,
				 "exit_group failed (wait status = %d)", w);
		}
	}
	cleanup();
	tst_exit();
}