testcases/kernel/syscalls/fstat/fstat02.c - platform/external/ltp - Gitiles

 /*
  *
  *   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
  */

 /*
  * Test Name: fstat02
  *
  * Test Description:
  *  Verify that, fstat(2) succeeds to get the status of a file and fills
  *  the stat structure elements though file pointed to by file descriptor
  *  not opened for reading.
  *
  * Expected Result:
  *  fstat() should return value 0 on success and the stat structure elements
  *  should be filled with specified 'file' information.
  *
  * Algorithm:
  *  Setup:
  *   Setup signal handling.
  *   Create temporary directory.
  *   Pause for SIGUSR1 if option specified.
  *
  *  Test:
  *   Loop if the proper options are given.
  *   Execute system call
  *   Check return code, if system call failed (return=-1)
  *   	Log the errno and Issue a FAIL message.
  *   Otherwise,
  *   	Verify the Functionality of system call
  *      if successful,
  *      	Issue Functionality-Pass message.
  *      Otherwise,
  *		Issue Functionality-Fail message.
  *  Cleanup:
  *   Print errno log and/or timing stats if options given
  *   Delete the temporary directory created.
  *
  * Usage:  <for command-line>
  *  fstat02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
  *     where,  -c n : Run n copies concurrently.
  *             -f   : Turn off functionality Testing.
  *	       -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:
  *
  */
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/fcntl.h>
 #include <sys/stat.h>
 #include <errno.h>
 #include <string.h>
 #include <signal.h>
 #include <pwd.h>

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

 #define FILE_MODE	0644
 #define TESTFILE	"testfile"
 #define FILE_SIZE       1024
 #define BUF_SIZE	256
 #define MASK		0777

 char *TCID="fstat02"; 		/* Test program identifier.    */
 int TST_TOTAL=1;    		/* Total number of test cases. */
 extern int Tst_count;		/* Test Case counter for tst_* routines */
 uid_t User_id;			/* user id/group id of test process */
 gid_t Group_id;
 int fildes;			/* File descriptor of testfile */

 char nobody_uid[] = "nobody";
 struct passwd *ltpuser;


 void setup();			/* Setup function for the test */
 void cleanup();			/* Cleanup function for the test */

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

 	/* Parse standard options given to run the test. */
 	msg = parse_opts(ac, av, (option_t *) NULL, NULL);
 	if (msg != (char *) NULL) {
 		tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
 		tst_exit();
 	}

 	/* Perform global setup for test */
 	setup();

 	/* 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;

 		/*
 		 * Call fstat(2) to get the status of
 		 * specified 'file' pointed to by 'fd'
 		 * into stat structure.
 		 */
 		TEST(fstat(fildes, &stat_buf));

 		/* check return code of fstat(2) */
 		if (TEST_RETURN == -1) {
 			tst_resm(TFAIL,
 				 "fstat on %s Failed, errno=%d : %s",
 				 TESTFILE, TEST_ERRNO, strerror(TEST_ERRNO));
 			continue;
 		}
 		/*
 		 * Perform functional verification if test
 		 * executed without (-f) option.
 		 */
 		if (STD_FUNCTIONAL_TEST) {
 			/*
 			 * Verify the data returned by fstat(2)
 			 * aganist the expected data.
 			 */
 			if ((stat_buf.st_uid != User_id) ||
 			    (stat_buf.st_gid != Group_id) ||
 			    (stat_buf.st_size != FILE_SIZE) ||
 			    ((stat_buf.st_mode & MASK) != FILE_MODE)) {
 				tst_resm(TFAIL, "Functionality of fstat(2) on "
 					 "'%s' Failed", TESTFILE);
 			} else {
 				tst_resm(TPASS, "Functionality of fstat(2) on "
 					 "'%s' Succcessful", TESTFILE);
 			}
 		} else {
 			tst_resm(TPASS, "call succeeded");
 		}
 	}	/* End for TEST_LOOPING */

 	/* Call cleanup() to undo setup done for the test. */
 	cleanup();

 	/*NOTREACHED*/
 	return 0;
 }	/* End main */

 /*
  * void
  * setup() -  Performs setup function for the test.
  *  Creat a temporary directory and chdir to it.
  *  Creat a temporary file and write some known data into it.
  *  Get the effective uid/gid of test process.
  */
 void
 setup()
 {
 	int i;
 	char tst_buff[BUF_SIZE];
 	int wbytes;
 	int write_len = 0;

 	/* capture signals */
 	tst_sig(NOFORK, DEF_HANDLER, cleanup);

 	/* Switch to nobody user for correct error code collection */
         if (geteuid() != 0) {
                 tst_brkm(TBROK, tst_exit, "Test must be run as root");
         }
          ltpuser = getpwnam(nobody_uid);
          if (setuid(ltpuser->pw_uid) == -1) {
                 tst_resm(TINFO, "setuid failed to "
                          "to set the effective uid to %d",
                          ltpuser->pw_uid);
                 perror("setuid");
          }


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

 	/* make a temp directory and cd to it */
 	tst_tmpdir();

 	if ((fildes = open(TESTFILE, O_WRONLY|O_CREAT, FILE_MODE)) == -1) {
 		tst_brkm(TBROK, cleanup,
 			 "open(%s, O_RDWR|O_CREAT, %#o) Failed, errno=%d : %s",
 			 TESTFILE, FILE_MODE, errno, strerror(errno));
 	}

 	/* Fill the test buffer with the known data */
 	for (i = 0; i < BUF_SIZE; i++) {
 		tst_buff[i] = 'a';
 	}

 	/* Write to the file 1k data from the buffer */
 	while (write_len < FILE_SIZE) {
 		if ((wbytes = write(fildes, tst_buff, sizeof(tst_buff))) <= 0) {
 			tst_brkm(TBROK, cleanup,
 				 "write(2) on %s Failed, errno=%d : %s",
 				 TESTFILE, errno, strerror(errno));
 		} else {
 			write_len += wbytes;
 		}
 	}

 	/* Get the uid/gid of the process */
 	User_id = getuid();
 	Group_id = getgid();

 }	/* End setup() */

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

 	/* Close the test file */
 	if (close(fildes) == -1) {
 		tst_brkm(TFAIL, NULL, "close(%s) Failed, errno=%d : %s",
 			 TESTFILE, errno, strerror(errno));
 	}

 	/* Remove tmp dir and all files in it */
 	tst_rmdir();

 	/* exit with return code appropriate for results */
 	tst_exit();
 }	/* End cleanup() */
	/*
	*
	* 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
	*/

	/*
	* Test Name: fstat02
	*
	* Test Description:
	* Verify that, fstat(2) succeeds to get the status of a file and fills
	* the stat structure elements though file pointed to by file descriptor
	* not opened for reading.
	*
	* Expected Result:
	* fstat() should return value 0 on success and the stat structure elements
	* should be filled with specified 'file' information.
	*
	* Algorithm:
	* Setup:
	* Setup signal handling.
	* Create temporary directory.
	* Pause for SIGUSR1 if option specified.
	*
	* Test:
	* Loop if the proper options are given.
	* Execute system call
	* Check return code, if system call failed (return=-1)
	* Log the errno and Issue a FAIL message.
	* Otherwise,
	* Verify the Functionality of system call
	* if successful,
	* Issue Functionality-Pass message.
	* Otherwise,
	* Issue Functionality-Fail message.
	* Cleanup:
	* Print errno log and/or timing stats if options given
	* Delete the temporary directory created.
	*
	* Usage: <for command-line>
	* fstat02 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
	* where, -c n : Run n copies concurrently.
	* -f : Turn off functionality Testing.
	* -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:
	*
	*/
	#include <stdio.h>
	#include <sys/types.h>
	#include <sys/fcntl.h>
	#include <sys/stat.h>
	#include <errno.h>
	#include <string.h>
	#include <signal.h>
	#include <pwd.h>

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

	#define FILE_MODE 0644
	#define TESTFILE "testfile"
	#define FILE_SIZE 1024
	#define BUF_SIZE 256
	#define MASK 0777

	char TCID="fstat02"; / Test program identifier. */
	int TST_TOTAL=1; /* Total number of test cases. */
	extern int Tst_count; /* Test Case counter for tst_* routines */
	uid_t User_id; /* user id/group id of test process */
	gid_t Group_id;
	int fildes; /* File descriptor of testfile */

	char nobody_uid[] = "nobody";
	struct passwd *ltpuser;


	void setup(); /* Setup function for the test */
	void cleanup(); /* Cleanup function for the test */

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

	/* Parse standard options given to run the test. */
	msg = parse_opts(ac, av, (option_t *) NULL, NULL);
	if (msg != (char *) NULL) {
	tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
	tst_exit();
	}

	/* Perform global setup for test */
	setup();

	/* 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;

	/*
	* Call fstat(2) to get the status of
	* specified 'file' pointed to by 'fd'
	* into stat structure.
	*/
	TEST(fstat(fildes, &stat_buf));

	/* check return code of fstat(2) */
	if (TEST_RETURN == -1) {
	tst_resm(TFAIL,
	"fstat on %s Failed, errno=%d : %s",
	TESTFILE, TEST_ERRNO, strerror(TEST_ERRNO));
	continue;
	}
	/*
	* Perform functional verification if test
	* executed without (-f) option.
	*/
	if (STD_FUNCTIONAL_TEST) {
	/*
	* Verify the data returned by fstat(2)
	* aganist the expected data.
	*/
	if ((stat_buf.st_uid != User_id) \|\|
	(stat_buf.st_gid != Group_id) \|\|
	(stat_buf.st_size != FILE_SIZE) \|\|
	((stat_buf.st_mode & MASK) != FILE_MODE)) {
	tst_resm(TFAIL, "Functionality of fstat(2) on "
	"'%s' Failed", TESTFILE);
	} else {
	tst_resm(TPASS, "Functionality of fstat(2) on "
	"'%s' Succcessful", TESTFILE);
	}
	} else {
	tst_resm(TPASS, "call succeeded");
	}
	} /* End for TEST_LOOPING */

	/* Call cleanup() to undo setup done for the test. */
	cleanup();

	/NOTREACHED/
	return 0;
	} /* End main */

	/*
	* void
	* setup() - Performs setup function for the test.
	* Creat a temporary directory and chdir to it.
	* Creat a temporary file and write some known data into it.
	* Get the effective uid/gid of test process.
	*/
	void
	setup()
	{
	int i;
	char tst_buff[BUF_SIZE];
	int wbytes;
	int write_len = 0;

	/* capture signals */
	tst_sig(NOFORK, DEF_HANDLER, cleanup);

	/* Switch to nobody user for correct error code collection */
	if (geteuid() != 0) {
	tst_brkm(TBROK, tst_exit, "Test must be run as root");
	}
	ltpuser = getpwnam(nobody_uid);
	if (setuid(ltpuser->pw_uid) == -1) {
	tst_resm(TINFO, "setuid failed to "
	"to set the effective uid to %d",
	ltpuser->pw_uid);
	perror("setuid");
	}


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

	/* make a temp directory and cd to it */
	tst_tmpdir();

	if ((fildes = open(TESTFILE, O_WRONLY\|O_CREAT, FILE_MODE)) == -1) {
	tst_brkm(TBROK, cleanup,
	"open(%s, O_RDWR\|O_CREAT, %#o) Failed, errno=%d : %s",
	TESTFILE, FILE_MODE, errno, strerror(errno));
	}

	/* Fill the test buffer with the known data */
	for (i = 0; i < BUF_SIZE; i++) {
	tst_buff[i] = 'a';
	}

	/* Write to the file 1k data from the buffer */
	while (write_len < FILE_SIZE) {
	if ((wbytes = write(fildes, tst_buff, sizeof(tst_buff))) <= 0) {
	tst_brkm(TBROK, cleanup,
	"write(2) on %s Failed, errno=%d : %s",
	TESTFILE, errno, strerror(errno));
	} else {
	write_len += wbytes;
	}
	}

	/* Get the uid/gid of the process */
	User_id = getuid();
	Group_id = getgid();

	} /* End setup() */

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

	/* Close the test file */
	if (close(fildes) == -1) {
	tst_brkm(TFAIL, NULL, "close(%s) Failed, errno=%d : %s",
	TESTFILE, errno, strerror(errno));
	}

	/* Remove tmp dir and all files in it */
	tst_rmdir();

	/* exit with return code appropriate for results */
	tst_exit();
	} /* End cleanup() */