testcases/kernel/syscalls/capget/capget01.c

/*
 * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */
/**********************************************************
 *
 *    TEST IDENTIFIER	: capget01
 *
 *    EXECUTED BY	: anyone
 *
 *    TEST TITLE	: Basic test for capget(2)
 *
 *    TEST CASE TOTAL	: 1
 *
 *    AUTHOR		: Saji Kumar.V.R <saji.kumar@wipro.com>
 *
 *    SIGNALS
 * 	Uses SIGUSR1 to pause before test if option set.
 * 	(See the parse_opts(3) man page).
 *
 *    DESCRIPTION
 *	This is a Phase I test for the capget(2) system call.
 *	It is intended to provide a limited exposure of the system call.
 *
 * 	Setup:
 * 	  Setup signal handling.
 *	  Pause for SIGUSR1 if option specified.
 *
 * 	Test:
 *	 Loop if the proper options are given.
 * 	  call capget()
 *	  if return value == 0
 *		Test passed
 *	  Otherwise
 *		Test failed
 *
 * 	Cleanup:
 * 	  Print errno log and/or timing stats if options given
 *
 * USAGE:  <for command-line>
 * capget01 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-f] [-p]
 *			where,  -c n : Run n copies concurrently.
 *				-e   : Turn on errno logging.
 *				-h   : Show help screen
 *				-f   : Turn off functional testing
 *				-i n : Execute test n times.
 *				-I x : Execute test for x seconds.
 *				-p   : Pause for SIGUSR1 before starting
 *				-P x : Pause for x seconds between iterations.
 *				-t   : Turn on syscall timing.
 ****************************************************************/

#include <errno.h>
#include <unistd.h>
#include "test.h"
#include "usctest.h"
#include "linux_syscall_numbers.h"

#include <linux/capability.h>

static void setup();
static void cleanup();

char *TCID = "capget01";
int TST_TOTAL = 1;

static struct __user_cap_header_struct header;	/* cap_user_header_t is a pointer
						   to __user_cap_header_struct */

static struct __user_cap_data_struct data;	/* cap_user_data_t is a pointer to
						   __user_cap_data_struct */

int main(int ac, char **av)
{

	int lc;
	char *msg;

	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);

	setup();

	/* header.version must be _LINUX_CAPABILITY_VERSION */
	header.version = _LINUX_CAPABILITY_VERSION;

	for (lc = 0; TEST_LOOPING(lc); lc++) {

		tst_count = 0;

		TEST(ltp_syscall(__NR_capget, &header, &data));

		if (TEST_RETURN == 0) {
			tst_resm(TPASS, "capget() returned %ld", TEST_RETURN);
		} else {
			tst_resm(TFAIL | TTERRNO,
				 "Test Failed, capget() returned %ld",
				 TEST_RETURN);
		}
	}

	cleanup();

	tst_exit();
}

void setup(void)
{

	tst_sig(NOFORK, DEF_HANDLER, cleanup);

	TEST_PAUSE;

}

void cleanup(void)
{
	TEST_CLEANUP;
}