testcases/kernel/syscalls/rename/rename05.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
 *	rename05
 *
 * DESCRIPTION
 *	This test will verify that rename(2) fails with EISDIR
 *
 * ALGORITHM
 *	Setup:
 *		Setup signal handling.
 *		Create temporary directory.
 *		Pause for SIGUSR1 if option specified.
 *              create the "old" file and the "new" directory
 *              rename the "old" file to the "new" directory
 *
 *	Test:
 *		Loop if the proper options are given.
 *                  verify rename() failed and returned EISDIR
 *
 *	Cleanup:
 *		Print errno log and/or timing stats if options given
 *		Delete the temporary directory created.
 *
 * USAGE
 *	rename05 [-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 Ported by Wayne Boyer
 *
 * RESTRICTIONS
 *	None.
 */
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>

#include "test.h"
#include "usctest.h"

void setup();
void cleanup();
extern void do_file_setup(char *);

char *TCID="rename05";		/* Test program identifier.    */
int TST_TOTAL=1;		/* Total number of test cases. */
extern int Tst_count;		/* Test Case counter for tst_* routines */

int exp_enos[]={EISDIR, 0};     /* List must end with 0 */

int fd;
char fname[255],mdir[255];
struct stat buf1,buf2;
dev_t   olddev, olddev1;
ino_t   oldino, oldino1;

int
main(int ac, char **av)
{
	int lc;             /* loop counter */
	char *msg;          /* message returned from parse_opts */

	/*
	 * parse standard options
	 */
	if ((msg=parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL) {
		tst_brkm(TBROK, tst_exit, "OPTION PARSING ERROR - %s", msg);
	}

	/*
	 * perform global setup for test
	 */
	setup();
	
	/* set the expected errnos... */
	TEST_EXP_ENOS(exp_enos);
	
	/*
	 * check looping state if -i option given
	 */
	for (lc=0; TEST_LOOPING(lc); lc++) {
	  
		/* reset Tst_count in case we are looping. */
		Tst_count=0;

		/* attempt to rename a file to a directory */
		/* Call rename(2) */
		TEST(rename(fname, mdir));

		if (TEST_RETURN != -1) {
			tst_resm(TFAIL, "rename(%s, %s) succeed unexpected",
				 fname, mdir);
			continue;
		}

		TEST_ERROR_LOG(TEST_ERRNO);

		if (errno != EISDIR) {
			tst_resm(TFAIL, "Expected EISDIR got %d", TEST_ERRNO);
		} else {
			tst_resm(TPASS, "rename() returned EISDIR");
		}
	}   /* End for TEST_LOOPING */
	
	/*
	 * cleanup and exit
	 */
	cleanup();
	/*NOTREACHED*/	

  return 0;

}

/*
 * setup() - performs all ONE TIME setup for this test.
 */
void 
setup()
{
	/* capture signals */
	tst_sig(NOFORK, DEF_HANDLER, cleanup);

	/* Pause if that option was specified */
	TEST_PAUSE; 

	/* Create a temporary directory and make it current. */
	tst_tmpdir();
	
	sprintf(mdir,"./rndir_%d",getpid());
	sprintf(fname,"./tfile_%d",getpid());

	/* create "old" file */
	do_file_setup(fname);
	if (stat(fname, &buf1) == -1) {
		tst_brkm(TBROK, cleanup, "failed to stat file %s"
			 "in rename()",fname);
		/* NOTREACHED */
	}

	/* save "old"'s dev and ino */
	olddev = buf1.st_dev;
	oldino = buf1.st_ino;

	/* create another directory */
	if (stat(mdir, &buf2) != -1) {
		tst_brkm(TBROK, cleanup, "tmp directory %s found!", mdir);
		/*NOTREACHED*/
	}

	if (mkdir(mdir, 00770) == -1) {
		tst_brkm(TBROK, cleanup, "Could not create directory %s", mdir);
		/*NOTREACHED*/
	}

	if (stat(mdir, &buf2) == -1) {
		tst_brkm(TBROK, cleanup, "failed to stat directory %s "
			 "in rename()", mdir);	
		/* NOTREACHED */
	}

	/* save "new"'s dev and ino */
	olddev1 = buf2.st_dev;
	oldino1 = buf2.st_ino; 
}


/*
 * cleanup() - performs all ONE TIME cleanup for this test at
 *              completion or premature exit.
 */
void 
cleanup()
{
	/*
	 * print timing stats if that option was specified.
	 * print errno log if that option was specified.
	 */
	TEST_CLEANUP;

	/*
	 * Remove the temporary directory.
	 */
	tst_rmdir();
	
	/*
	 * Exit with return code appropriate for results.
	 */
	tst_exit();
}