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      1 /*
      2  *
      3  *   Copyright (c) International Business Machines  Corp., 2001
      4  *
      5  *   This program is free software;  you can redistribute it and/or modify
      6  *   it under the terms of the GNU General Public License as published by
      7  *   the Free Software Foundation; either version 2 of the License, or
      8  *   (at your option) any later version.
      9  *
     10  *   This program is distributed in the hope that it will be useful,
     11  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
     12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
     13  *   the GNU General Public License for more details.
     14  *
     15  *   You should have received a copy of the GNU General Public License
     16  *   along with this program;  if not, write to the Free Software
     17  *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     18  */
     19 
     20 /*
     21  * Test Name: utime01
     22  *
     23  * Test Description:
     24  *  Verify that the system call utime() successfully sets the modification
     25  *  and access times of a file to the current time, if the times argument
     26  *  is null, and the user ID of the process is "root".
     27  *
     28  * Expected Result:
     29  *  utime succeeds returning zero and sets the access and modification
     30  *  times of the file to the current time.
     31  *
     32  * Algorithm:
     33  *  Setup:
     34  *   Setup signal handling.
     35  *   Create temporary directory.
     36  *   Pause for SIGUSR1 if option specified.
     37  *
     38  *  Test:
     39  *   Loop if the proper options are given.
     40  *   Execute system call
     41  *   Check return code, if system call failed (return=-1)
     42  *	Log the errno and Issue a FAIL message.
     43  *   Otherwise,
     44  *	Verify the Functionality of system call
     45  *      if successful,
     46  *		Issue Functionality-Pass message.
     47  *      Otherwise,
     48  *		Issue Functionality-Fail message.
     49  *  Cleanup:
     50  *   Print errno log and/or timing stats if options given
     51  *   Delete the temporary directory created.
     52  *
     53  * Usage:  <for command-line>
     54  *  utime01 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t]
     55  *		where,  -c n : Run n copies concurrently.
     56  *			-e   : Turn on errno logging.
     57  *			-f   : Turn off functionality Testing.
     58  *			-i n : Execute test n times.
     59  *			-I x : Execute test for x seconds.
     60  *			-P x : Pause for x seconds between iterations.
     61  *			-t   : Turn on syscall timing.
     62  *
     63  * History
     64  *	07/2001 John George
     65  *		-Ported
     66  *
     67  * Restrictions:
     68  *  This test should be run by 'super-user' (root) only.
     69  *
     70  */
     71 
     72 #include <stdio.h>
     73 #include <unistd.h>
     74 #include <sys/types.h>
     75 #include <errno.h>
     76 #include <fcntl.h>
     77 #include <utime.h>
     78 #include <string.h>
     79 #include <sys/stat.h>
     80 #include <signal.h>
     81 #include <time.h>
     82 
     83 #include "test.h"
     84 #include "safe_macros.h"
     85 
     86 #define TEMP_FILE	"tmp_file"
     87 #define FILE_MODE	S_IRUSR | S_IRGRP | S_IROTH
     88 
     89 char *TCID = "utime01";
     90 int TST_TOTAL = 1;
     91 time_t curr_time;		/* current time in seconds */
     92 
     93 void setup();			/* Main setup function of test */
     94 void cleanup();			/* cleanup function for the test */
     95 
     96 int main(int ac, char **av)
     97 {
     98 	struct stat stat_buf;	/* struct buffer to hold file info. */
     99 	int lc;
    100 	long type;
    101 	time_t modf_time, access_time;
    102 	time_t pres_time;	/* file modification/access/present time */
    103 
    104 	tst_parse_opts(ac, av, NULL, NULL);
    105 
    106 	setup();
    107 
    108 	switch ((type = tst_fs_type(cleanup, "."))) {
    109 	case TST_NFS_MAGIC:
    110 		if (tst_kvercmp(2, 6, 18) < 0)
    111 			tst_brkm(TCONF, cleanup, "Cannot do utime on a file"
    112 				" on %s filesystem before 2.6.18",
    113 				 tst_fs_type_name(type));
    114 		break;
    115 	case TST_V9FS_MAGIC:
    116 		tst_brkm(TCONF, cleanup,
    117 			 "Cannot do utime on a file on %s filesystem",
    118 			 tst_fs_type_name(type));
    119 		break;
    120 	}
    121 
    122 	for (lc = 0; TEST_LOOPING(lc); lc++) {
    123 
    124 		tst_count = 0;
    125 
    126 		/*
    127 		 * Invoke utime(2) to set TEMP_FILE access and
    128 		 * modification times to the current time.
    129 		 */
    130 		TEST(utime(TEMP_FILE, NULL));
    131 
    132 		if (TEST_RETURN == -1) {
    133 			tst_resm(TFAIL|TTERRNO, "utime(%s) failed", TEMP_FILE);
    134 		} else {
    135 			/*
    136 			 * Sleep for a second so that mod time and
    137 			 * access times will be different from the
    138 			 * current time
    139 			 */
    140 			sleep(2);
    141 
    142 			/*
    143 			 * Get the current time now, after calling
    144 			 * utime(2)
    145 			 */
    146 			pres_time = time(NULL);
    147 
    148 			/*
    149 			 * Get the modification and access times of
    150 			 * temporary file using stat(2).
    151 			 */
    152 			SAFE_STAT(cleanup, TEMP_FILE, &stat_buf);
    153 			modf_time = stat_buf.st_mtime;
    154 			access_time = stat_buf.st_atime;
    155 
    156 			/* Now do the actual verification */
    157 			if (modf_time <= curr_time ||
    158 			    modf_time >= pres_time ||
    159 			    access_time <= curr_time ||
    160 			    access_time >= pres_time) {
    161 				tst_resm(TFAIL, "%s access and "
    162 					 "modification times not set",
    163 					 TEMP_FILE);
    164 			} else {
    165 				tst_resm(TPASS, "Functionality of "
    166 					 "utime(%s, NULL) successful",
    167 					 TEMP_FILE);
    168 			}
    169 		}
    170 		tst_count++;
    171 	}
    172 
    173 	cleanup();
    174 	tst_exit();
    175 }
    176 
    177 /*
    178  * void
    179  * setup() - performs all ONE TIME setup for this test.
    180  *  Create a temporary directory and change directory to it.
    181  *  Create a test file under temporary directory and close it
    182  */
    183 void setup(void)
    184 {
    185 	int fildes;		/* file handle for temp file */
    186 
    187 	tst_require_root();
    188 
    189 	tst_sig(FORK, DEF_HANDLER, cleanup);
    190 
    191 	TEST_PAUSE;
    192 
    193 	tst_tmpdir();
    194 
    195 	/* Creat a temporary file under above directory */
    196 	fildes = SAFE_CREAT(cleanup, TEMP_FILE, FILE_MODE);
    197 
    198 	/* Close the temporary file created */
    199 	SAFE_CLOSE(cleanup, fildes);
    200 
    201 	/* Get the current time */
    202 	curr_time = time(NULL);
    203 
    204 	/*
    205 	 * Sleep for a second so that mod time and access times will be
    206 	 * different from the current time
    207 	 */
    208 	sleep(2);		/* sleep(1) on IA64 sometimes sleeps < 1 sec!! */
    209 
    210 }
    211 
    212 /*
    213  * void
    214  * cleanup() - performs all ONE TIME cleanup for this test at
    215  *             completion or premature exit.
    216  *  Remove the test directory and testfile created in the setup.
    217  */
    218 void cleanup(void)
    219 {
    220 
    221 	tst_rmdir();
    222 
    223 }
    224