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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: utime05
     22  *
     23  * Test Description:
     24  *  Verify that the system call utime() successfully sets the modification
     25  *  and access times of a file to the value specified by the times argument
     26  *  under the following constraints,
     27  *		- The times argument is not null,
     28  *		- The user ID of the process is not "root".
     29  *		- The file is owned by the user ID of the process.
     30  *
     31  * Expected Result:
     32  *  utime succeeds returning zero and sets the access and modification
     33  *  times of the file to that specified by the times argument.
     34  *
     35  * Algorithm:
     36  *  Setup:
     37  *   Setup signal handling.
     38  *   Create temporary directory.
     39  *   Pause for SIGUSR1 if option specified.
     40  *
     41  *  Test:
     42  *   Loop if the proper options are given.
     43  *   Execute system call
     44  *   Check return code, if system call failed (return=-1)
     45  *	Log the errno and Issue a FAIL message.
     46  *   Otherwise,
     47  *	Verify the Functionality of system call
     48  *      if successful,
     49  *		Issue Functionality-Pass message.
     50  *      Otherwise,
     51  *		Issue Functionality-Fail message.
     52  *  Cleanup:
     53  *   Print errno log and/or timing stats if options given
     54  *   Delete the temporary directory created.
     55  *
     56  * Usage:  <for command-line>
     57  *  utime05 [-c n] [-e] [-f] [-i n] [-I x] [-p x] [-t]
     58  *		where,	-c n : Run n copies concurrently.
     59  *			-e   : Turn on errno logging.
     60  *			-f   : Turn off functionality Testing.
     61  *			-i n : Execute test n times.
     62  *			-I x : Execute test for x seconds.
     63  *			-P x : Pause for x seconds between iterations.
     64  *			-t   : Turn on syscall timing.
     65  *
     66  * History
     67  *	07/2001 John George
     68  *		-Ported
     69  *
     70  * Restrictions:
     71  *
     72  */
     73 
     74 #include <stdio.h>
     75 #include <sys/types.h>
     76 #include <errno.h>
     77 #include <unistd.h>
     78 #include <fcntl.h>
     79 #include <utime.h>
     80 #include <string.h>
     81 #include <sys/stat.h>
     82 #include <signal.h>
     83 #include <pwd.h>
     84 
     85 #include "test.h"
     86 #include "safe_macros.h"
     87 
     88 #define TEMP_FILE	"tmp_file"
     89 #define FILE_MODE	S_IRUSR | S_IRGRP | S_IROTH
     90 #define NEW_TIME	10000
     91 
     92 char *TCID = "utime05";
     93 int TST_TOTAL = 1;
     94 
     95 char nobody_uid[] = "nobody";
     96 struct passwd *ltpuser;
     97 
     98 struct utimbuf times;		/* struct. buffer for utime() */
     99 
    100 void setup();			/* Main setup function of test */
    101 void cleanup();			/* cleanup function for the test */
    102 
    103 int main(int ac, char **av)
    104 {
    105 	struct stat stat_buf;	/* struct buffer to hold file info. */
    106 	int lc;
    107 	time_t modf_time, access_time;
    108 	/* file modification/access time */
    109 
    110 	tst_parse_opts(ac, av, NULL, NULL);
    111 
    112 	setup();
    113 
    114 	for (lc = 0; TEST_LOOPING(lc); lc++) {
    115 
    116 		tst_count = 0;
    117 
    118 		/*
    119 		 * Invoke utime(2) to set TEMP_FILE access and
    120 		 * modification times to that specified by
    121 		 * times argument.
    122 		 */
    123 		TEST(utime(TEMP_FILE, &times));
    124 
    125 		if (TEST_RETURN == -1) {
    126 			tst_resm(TFAIL|TTERRNO, "utime(%s) failed", TEMP_FILE);
    127 		} else {
    128 			/*
    129 			 * Get the modification and access times of
    130 			 * temporary file using stat(2).
    131 			 */
    132 			SAFE_STAT(cleanup, TEMP_FILE, &stat_buf);
    133 			modf_time = stat_buf.st_mtime;
    134 			access_time = stat_buf.st_atime;
    135 
    136 			/* Now do the actual verification */
    137 			if ((modf_time != NEW_TIME) ||
    138 			    (access_time != NEW_TIME)) {
    139 				tst_resm(TFAIL, "%s access and "
    140 					 "modification times not set",
    141 					 TEMP_FILE);
    142 			} else {
    143 				tst_resm(TPASS, "Functionality of "
    144 					 "utime(%s, &times) successful",
    145 					 TEMP_FILE);
    146 			}
    147 		}
    148 		tst_count++;	/* incr TEST_LOOP counter */
    149 	}
    150 
    151 	cleanup();
    152 	tst_exit();
    153 }
    154 
    155 /*
    156  * void
    157  * setup() - performs all ONE TIME setup for this test.
    158  *  Create a temporary directory and change directory to it.
    159  *  Create a test file under temporary directory and close it
    160  */
    161 void setup(void)
    162 {
    163 	int fildes;		/* file handle for temp file */
    164 
    165 	tst_require_root();
    166 
    167 	tst_sig(FORK, DEF_HANDLER, cleanup);
    168 
    169 	/* Switch to nobody user for correct error code collection */
    170 	ltpuser = SAFE_GETPWNAM(NULL, nobody_uid);
    171 	SAFE_SETUID(NULL, ltpuser->pw_uid);
    172 
    173 	TEST_PAUSE;
    174 
    175 	tst_tmpdir();
    176 
    177 	/* Creat a temporary file under above directory */
    178 	fildes = SAFE_CREAT(cleanup, TEMP_FILE, FILE_MODE);
    179 
    180 	/* Close the temporary file created */
    181 	SAFE_CLOSE(cleanup, fildes);
    182 
    183 	/* Initialize the modification and access time in the times arg */
    184 	times.actime = NEW_TIME;
    185 	times.modtime = NEW_TIME;
    186 
    187 }
    188 
    189 /*
    190  * void
    191  * cleanup() -	performs all ONE TIME cleanup for this test at
    192  *		completion or premature exit.
    193  *		Remove the test directory and testfile created in the setup.
    194  */
    195 void cleanup(void)
    196 {
    197 
    198 	tst_rmdir();
    199 
    200 }
    201