testcases/kernel/syscalls/set_thread_area/set_thread_area02.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *									
 ************************************************************************/
/************************************************************************/
/*									*/
/* File:	set_thread_area_02.c					*/
/*									*/
/* Description: This test checks for propper error code on syscalls	*/
/*		1) get__thread_area():					*/
/*		  get_thread_area returns an entry in the current	*/
/*		  thread's Thread Local Storage (TLS) array.		*/
/*		  get_thread_area returns 0 on success. Otherwise,	*/
/*		  it returns -1						*/
/*		2)  set_thread_area():					*/
/*		 set_thread_area() sets an entry in the current		*/
/*		 thread's Thread Local. When set_thread_area() is	*/
/*		 passed an entry_number of -1, it uses a free TLS	*/
/*		 entry. set_thread_area() returns 0 on success, and	*/
/*		 -1 on failure with errno set appropriately.		*/
/*									*/
/*									*/
/* Usage:  <for command-line>						*/
/* set_thread_area_02 [-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: 3							*/
/*									*/
/* Test Name:   set_thread_area_02					*/
/* History:	 Porting from Crackerjack to LTP is done by		*/
/*		Manas Kumar Nayak maknayak@in.ibm.com>			*/
/************************************************************************/
#include "set_thread_area.h"

/* Global Variables */
char *TCID = "set_thread_area_02";  /* Test program identifier.*/
int  testno;
int  TST_TOTAL = 3;		   /* total number of tests in this file.   */

#if defined(HAVE_ASM_LDT_H) && defined(HAVE_STRUCT_USER_DESC)
/* Extern Global Variables */
extern int Tst_count;	   /* counter for tst_xxx routines.	 */
extern char *TESTDIR;	   /* temporary dir created by tst_tmpdir() */

/* 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.  */
/*										*/
/******************************************************************************/
extern void cleanup() {
	/* Remove tmp dir and all files in it */
	TEST_CLEANUP;
	tst_rmdir();

	/* Exit with appropriate return code. */
	tst_exit();
}

/* 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() {
	/* Capture signals if any */
	/* Create temporary directories */
	TEST_PAUSE;
	tst_tmpdir();
}

int main(int ac, char **av) {
	
	thread_area_s u_info;
	int lc;		 /* loop counter */
	char *msg;		  /* message returned from parse_opts */
	
	/* parse standard options */
	if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL){
		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
		tst_exit();
	}

	setup();

	/* Check looping state if -i option given */
	for (lc = 0; TEST_LOOPING(lc); ++lc) {

		Tst_count = 0;

		for (testno = 0; testno < TST_TOTAL; ++testno) {

			u_info.entry_number = 6;
	
			/*
			 * This call to get_thread_area function should be sucessful.
			 */

			TEST(syscall(__NR_get_thread_area, &u_info));	 //call get_thread_area()
			if(TEST_RETURN == -1) {
				tst_resm(TFAIL | TTERRNO, "call get_thread_area() failed");
				cleanup();
				tst_exit();
			}
			 
			u_info.entry_number = -2;
			/*
			 * This call to set_thread_area function with invalid entry_number should be FAILED.
			 */

			TEST(syscall(__NR_set_thread_area, &u_info));	 //call set_thread_area()
			if(TEST_RETURN == -1) {

				if (TEST_ERRNO == EINVAL) {
					tst_resm(TPASS, "Call to set_thread_area call failed with invalid entry_number  errno = %d (expected EINVAL)",TEST_ERRNO);
				} else {
			 		tst_resm(TFAIL,"Call to set_thread_area with invalid entry_number got unexpected errno = %d (expected EINVAL)",TEST_ERRNO);
				}

			} else {
		   		tst_resm(TFAIL,"Call to set_thread_area with invalid entry_number succeed,but should fail" );
				cleanup();
				tst_exit();
			}

			/*
			 * This call to set_thread_area function with an invalid pointer should be FAILED with EFAULT.
			 */

			TEST(syscall(__NR_set_thread_area,(struct user_desc *)-9));	 //call set_thread_area()
			if (TEST_RETURN == -1) {
				if(TEST_ERRNO == EFAULT){
					tst_resm(TPASS, "Call to set_thread_area call with invalid entry_number errno = %d (got expected error EFAULT)",TEST_ERRNO);
				} else {
					tst_resm(TFAIL,"Call to set_thread_area with invalid entry_number got unexpected errno = %d (expected EFAULT)",TEST_ERRNO);
				}
			} else {
				tst_resm(TFAIL,"Call to set_thread_area with invalid entry_number succeed,but should fail" );
				tst_exit();
			}
		}
	}
	cleanup();
	tst_exit();
}
#else
int main(void) {
	tst_resm(TCONF, "is not available for this architecture");
	tst_exit();
}
#endif