testcases/kernel/syscalls/utime/utime06.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: utime06
  *
  * Test Description:
  * 1. Verify that the system call utime() fails to set the modification
  *    and access times of a file to the current time, under the following
  *    constraints,
  *	 - The times argument is null.
  *	 - The user ID of the process is not "root".
  *	 - The file is not owned by the user ID of the process.
  *	 - The user ID of the process does not have write access to the
  *	   file.
  * 2. Verify that the system call utime() fails to set the modification
  *    and access times of a file if the specified file doesn't exist.
  *
  * Expected Result:
  * 1. utime should fail with -1 return value and sets errno EACCES.
  * 2. utime should fail with -1 return value and sets errno ENOENT.
  *
  * 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)
  *   	if errno set == expected errno
  *   		Issue sys call fails with expected return value and errno.
  *   	Otherwise,
  *		Issue sys call fails with unexpected errno.
  *   Otherwise,
  *	Issue sys call returns unexpected value.
  *
  *  Cleanup:
  *   Print errno log and/or timing stats if options given
  *   Delete the temporary directory(s)/file(s) created.
  *
  * Usage:  <for command-line>
  *  utime06 [-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 John George
  *		-Ported
  *
  * Restrictions:
  *  This test must be executed by root.
  *   nobody and bin must be valid users.
  */

 #include <errno.h>
 #include <fcntl.h>
 #include <pwd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
 #include <string.h>
 #include <unistd.h>
 #include <utime.h>
 #include <wait.h>
 #include <sys/stat.h>
 #include <sys/types.h>

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

 #define LTPUSER1        "nobody"
 #define LTPUSER2        "bin"
 #define TEMP_FILE	"tmp_file"
 #define FILE_MODE	S_IRUSR | S_IRGRP | S_IROTH

 char *TCID="utime06";		/* Test program identifier.    */
 int TST_TOTAL=2;		/* Total number of test cases. */
 extern int Tst_count;		/* Test Case counter for tst_* routines */
 time_t curr_time;		/* current time in seconds */
 time_t tloc;			/* argument var. for time() */
 int exp_enos[]={EACCES, ENOENT, 0};

 struct passwd *ltpuser;         /* password struct for ltpusers */
 uid_t user_uid;                 /* user id of ltpuser */
 gid_t group_gid;                /* group id of ltpuser */
 int status;

 int setup1();			/* setup function to test error EACCES */
 int no_setup();

 struct test_case_t {		/* test case struct. to hold ref. test cond's*/
 	char *pathname;
 	char *desc;
 	int exp_errno;
 	int (*setupfunc)();
 } Test_cases[] = {
 	{ TEMP_FILE, "Permission denied to modify file time", EACCES, setup1 },
 	{ "", "Specified file doesn't exist", ENOENT, no_setup },
 	{ NULL, NULL, 0, NULL}
 };

 void setup();			/* Main setup function of test */
 void cleanup();			/* cleanup function for the test */

 int
 main(int ac, char **av)
 {
 	int lc;			/* loop counter */
 	char *msg;		/* message returned from parse_opts */
 	char *file_name;	/* testfile name */
 	char *test_desc;	/* test specific error message */
 	int ind;		/* counter to test different test conditions */
 	int pid;

 	/* 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();

 	/* set the expected errnos... */
 	TEST_EXP_ENOS(exp_enos);

 	pid = FORK_OR_VFORK();

 	if (pid == -1) {
 		tst_brkm(TBROK, cleanup, "fork() failed");
 		/*NOTREACHED*/
 	} else if (pid == 0) {
 		if ((ltpuser = getpwnam(LTPUSER1)) == NULL) {
 			tst_brkm(TBROK,cleanup,"%s not found in /etc/passwd",
 				LTPUSER1);
 			/*NOTREACHED*/
 		}

 		/* get uid of user */
 		user_uid = ltpuser->pw_uid;

 		seteuid(user_uid);

 		/* 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;

 			for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
 				file_name = Test_cases[ind].pathname;
 				test_desc = Test_cases[ind].desc;

 				/*
 				 * Call utime(2) to test different test
 				 * conditions. Verify that it fails with -1
 				 * return value and sets appropriate errno.
 				 */
 				TEST(utime(file_name, NULL));

 				/* Check return code from utime(2) */
 				if (TEST_RETURN == -1) {
 					TEST_ERROR_LOG(TEST_ERRNO);
 					if (TEST_ERRNO ==
 						Test_cases[ind].exp_errno) {
 						tst_resm(TPASS, "utime() "
 							"fails, %s, errno:%d",
 							test_desc, TEST_ERRNO);
 					} else {
 						tst_resm(TFAIL, "utime(2) "
 							"fails, %s, errno:%d, "
 							"expected errno:%d",
 							test_desc, TEST_ERRNO,
 							Test_cases[ind].exp_errno);
 					}
 				} else {
 					tst_resm(TFAIL, "utime(2) returned %d, "
 						"expected -1, errno:%d",
 						TEST_RETURN,
 						Test_cases[ind].exp_errno);
 				}
 			}	/* End of TEST CASE LOOPING. */

 			Tst_count++;		/* incr TEST_LOOP counter */

 		}	/* End for TEST_LOOPING */
 	} else {
 		waitpid(pid, &status, 0);
 		_exit(0);       /*
 				 * Exit here and let the child clean up.
 				 * This allows the errno information set
 				 * by the TEST_ERROR_LOG macro and the
 				 * PASS/FAIL status to be preserved for
 				 * use during cleanup.
 				 */
 	}
 	/* Call cleanup() to undo setup done for the test. */
 	cleanup();
 	/*NOTREACHED*/


   return 0;

 }	/* End main */

 /*
  * void
  * setup() - performs all ONE TIME setup for this test.
  *  Create a temporary directory and change directory to it.
  *  Invoke individual test setup functions according to the order
  *  set in test struct. definition.
  */
 void
 setup()
 {
 	int ind;			/* counter for setup functions */

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

 	/* Check that the test process id is non-super/root  */
 	if (geteuid() != 0) {
 		tst_brkm(TBROK, NULL, "Must be root for this test!");
 		tst_exit();
 	}

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

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

 	/* call individual setup functions */
 	for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
 		Test_cases[ind].setupfunc();
 	}
 }	/* End setup() */

 /*
  * int
  * no_setup() - Some test conditions for utime(2) do not any setup.
  *              Hence, this function just returns 0.
  */
 int
 no_setup()
 {
 	return 0;
 }

 /*
  * int
  * setup1() - setup function for a test condition for which utime(2)
  *		returns -1 and sets errno to EACCES.
  *  Create a testfile under temporary directory and change the ownership of
  *  testfile to "bin".
  */
 int
 setup1()
 {
 	int fildes;			/* file handle for temp file */

 	/* Creat a temporary file under above directory */
 	if ((fildes = creat(TEMP_FILE, FILE_MODE)) == -1) {
 		tst_brkm(TBROK, cleanup, "creat(%s, %#o) Failed, errno=%d :%s",
 			 TEMP_FILE, FILE_MODE, errno, strerror(errno));
 	}

 	/* Close the temporary file created */
 	if (close(fildes) < 0) {
 		tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s:",
 				 TEMP_FILE, errno, strerror(errno));
 	}

 	if ((ltpuser = getpwnam(LTPUSER2)) == NULL) {
 		tst_brkm(TBROK, cleanup, "%s not found in /etc/passwd",
 				LTPUSER2);
 		/*NOTREACHED*/
 	}

 	/* get uid/gid of user accordingly */
 	user_uid = ltpuser->pw_uid;
 	group_gid = ltpuser->pw_gid;

 	if (chown(TEMP_FILE, user_uid, group_gid) < 0) {
 		tst_brkm(TBROK, cleanup, "chown() of %s failed, error %d",
 			TEMP_FILE, errno);
 		/*NOTREACHED*/
 	}

 	return 0;
 }	/* End of setup1 */

 /*
  * void
  * cleanup() - performs all ONE TIME cleanup for this test at
  *             completion or premature exit.
  *  Remove the test directory and testfile created in the setup.
  */
 void
 cleanup()
 {
 	seteuid(0);
 	/*
 	 * print timing stats if that option was specified.
 	 * print errno log if that option was specified.
 	 */
 	TEST_CLEANUP;

 	/* 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: utime06
	*
	* Test Description:
	* 1. Verify that the system call utime() fails to set the modification
	* and access times of a file to the current time, under the following
	* constraints,
	* - The times argument is null.
	* - The user ID of the process is not "root".
	* - The file is not owned by the user ID of the process.
	* - The user ID of the process does not have write access to the
	* file.
	* 2. Verify that the system call utime() fails to set the modification
	* and access times of a file if the specified file doesn't exist.
	*
	* Expected Result:
	* 1. utime should fail with -1 return value and sets errno EACCES.
	* 2. utime should fail with -1 return value and sets errno ENOENT.
	*
	* 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)
	* if errno set == expected errno
	* Issue sys call fails with expected return value and errno.
	* Otherwise,
	* Issue sys call fails with unexpected errno.
	* Otherwise,
	* Issue sys call returns unexpected value.
	*
	* Cleanup:
	* Print errno log and/or timing stats if options given
	* Delete the temporary directory(s)/file(s) created.
	*
	* Usage: <for command-line>
	* utime06 [-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 John George
	* -Ported
	*
	* Restrictions:
	* This test must be executed by root.
	* nobody and bin must be valid users.
	*/

	#include <errno.h>
	#include <fcntl.h>
	#include <pwd.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <signal.h>
	#include <string.h>
	#include <unistd.h>
	#include <utime.h>
	#include <wait.h>
	#include <sys/stat.h>
	#include <sys/types.h>

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

	#define LTPUSER1 "nobody"
	#define LTPUSER2 "bin"
	#define TEMP_FILE "tmp_file"
	#define FILE_MODE S_IRUSR \| S_IRGRP \| S_IROTH

	char TCID="utime06"; / Test program identifier. */
	int TST_TOTAL=2; /* Total number of test cases. */
	extern int Tst_count; /* Test Case counter for tst_* routines */
	time_t curr_time; /* current time in seconds */
	time_t tloc; /* argument var. for time() */
	int exp_enos[]={EACCES, ENOENT, 0};

	struct passwd ltpuser; / password struct for ltpusers */
	uid_t user_uid; /* user id of ltpuser */
	gid_t group_gid; /* group id of ltpuser */
	int status;

	int setup1(); /* setup function to test error EACCES */
	int no_setup();

	struct test_case_t { /* test case struct. to hold ref. test cond's*/
	char *pathname;
	char *desc;
	int exp_errno;
	int (*setupfunc)();
	} Test_cases[] = {
	{ TEMP_FILE, "Permission denied to modify file time", EACCES, setup1 },
	{ "", "Specified file doesn't exist", ENOENT, no_setup },
	{ NULL, NULL, 0, NULL}
	};

	void setup(); /* Main setup function of test */
	void cleanup(); /* cleanup function for the test */

	int
	main(int ac, char **av)
	{
	int lc; /* loop counter */
	char msg; / message returned from parse_opts */
	char file_name; / testfile name */
	char test_desc; / test specific error message */
	int ind; /* counter to test different test conditions */
	int pid;

	/* 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();

	/* set the expected errnos... */
	TEST_EXP_ENOS(exp_enos);

	pid = FORK_OR_VFORK();

	if (pid == -1) {
	tst_brkm(TBROK, cleanup, "fork() failed");
	/NOTREACHED/
	} else if (pid == 0) {
	if ((ltpuser = getpwnam(LTPUSER1)) == NULL) {
	tst_brkm(TBROK,cleanup,"%s not found in /etc/passwd",
	LTPUSER1);
	/NOTREACHED/
	}

	/* get uid of user */
	user_uid = ltpuser->pw_uid;

	seteuid(user_uid);

	/* 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;

	for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
	file_name = Test_cases[ind].pathname;
	test_desc = Test_cases[ind].desc;

	/*
	* Call utime(2) to test different test
	* conditions. Verify that it fails with -1
	* return value and sets appropriate errno.
	*/
	TEST(utime(file_name, NULL));

	/* Check return code from utime(2) */
	if (TEST_RETURN == -1) {
	TEST_ERROR_LOG(TEST_ERRNO);
	if (TEST_ERRNO ==
	Test_cases[ind].exp_errno) {
	tst_resm(TPASS, "utime() "
	"fails, %s, errno:%d",
	test_desc, TEST_ERRNO);
	} else {
	tst_resm(TFAIL, "utime(2) "
	"fails, %s, errno:%d, "
	"expected errno:%d",
	test_desc, TEST_ERRNO,
	Test_cases[ind].exp_errno);
	}
	} else {
	tst_resm(TFAIL, "utime(2) returned %d, "
	"expected -1, errno:%d",
	TEST_RETURN,
	Test_cases[ind].exp_errno);
	}
	} /* End of TEST CASE LOOPING. */

	Tst_count++; /* incr TEST_LOOP counter */

	} /* End for TEST_LOOPING */
	} else {
	waitpid(pid, &status, 0);
	_exit(0); /*
	* Exit here and let the child clean up.
	* This allows the errno information set
	* by the TEST_ERROR_LOG macro and the
	* PASS/FAIL status to be preserved for
	* use during cleanup.
	*/
	}
	/* Call cleanup() to undo setup done for the test. */
	cleanup();
	/NOTREACHED/


	return 0;

	} /* End main */

	/*
	* void
	* setup() - performs all ONE TIME setup for this test.
	* Create a temporary directory and change directory to it.
	* Invoke individual test setup functions according to the order
	* set in test struct. definition.
	*/
	void
	setup()
	{
	int ind; /* counter for setup functions */

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

	/* Check that the test process id is non-super/root */
	if (geteuid() != 0) {
	tst_brkm(TBROK, NULL, "Must be root for this test!");
	tst_exit();
	}

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

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

	/* call individual setup functions */
	for (ind = 0; Test_cases[ind].desc != NULL; ind++) {
	Test_cases[ind].setupfunc();
	}
	} /* End setup() */

	/*
	* int
	* no_setup() - Some test conditions for utime(2) do not any setup.
	* Hence, this function just returns 0.
	*/
	int
	no_setup()
	{
	return 0;
	}

	/*
	* int
	* setup1() - setup function for a test condition for which utime(2)
	* returns -1 and sets errno to EACCES.
	* Create a testfile under temporary directory and change the ownership of
	* testfile to "bin".
	*/
	int
	setup1()
	{
	int fildes; /* file handle for temp file */

	/* Creat a temporary file under above directory */
	if ((fildes = creat(TEMP_FILE, FILE_MODE)) == -1) {
	tst_brkm(TBROK, cleanup, "creat(%s, %#o) Failed, errno=%d :%s",
	TEMP_FILE, FILE_MODE, errno, strerror(errno));
	}

	/* Close the temporary file created */
	if (close(fildes) < 0) {
	tst_brkm(TBROK, cleanup, "close(%s) Failed, errno=%d : %s:",
	TEMP_FILE, errno, strerror(errno));
	}

	if ((ltpuser = getpwnam(LTPUSER2)) == NULL) {
	tst_brkm(TBROK, cleanup, "%s not found in /etc/passwd",
	LTPUSER2);
	/NOTREACHED/
	}

	/* get uid/gid of user accordingly */
	user_uid = ltpuser->pw_uid;
	group_gid = ltpuser->pw_gid;

	if (chown(TEMP_FILE, user_uid, group_gid) < 0) {
	tst_brkm(TBROK, cleanup, "chown() of %s failed, error %d",
	TEMP_FILE, errno);
	/NOTREACHED/
	}

	return 0;
	} /* End of setup1 */

	/*
	* void
	* cleanup() - performs all ONE TIME cleanup for this test at
	* completion or premature exit.
	* Remove the test directory and testfile created in the setup.
	*/
	void
	cleanup()
	{
	seteuid(0);
	/*
	* print timing stats if that option was specified.
	* print errno log if that option was specified.
	*/
	TEST_CLEANUP;

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

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