Home | History | Annotate | Download | only in sysfs 
      1 /*
      2  * Copyright (c) Wipro Technologies Ltd, 2002.  All Rights Reserved.
      3  *
      4  * This program is free software; you can redistribute it and/or modify it
      5  * under the terms of version 2 of the GNU General Public License as
      6  * published by the Free Software Foundation.
      7  *
      8  * This program is distributed in the hope that it would be useful, but
      9  * WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
     11  *
     12  * You should have received a copy of the GNU General Public License along
     13  * with this program; if not, write the Free Software Foundation, Inc.,
     14  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
     15  *
     16  */
     17 /**************************************************************************
     18  *
     19  *    TEST IDENTIFIER	: sysfs02
     20  *
     21  *    EXECUTED BY	: anyone
     22  *
     23  *    TEST TITLE	: Basic test for sysfs(2)
     24  *
     25  *    TEST CASE TOTAL	: 1
     26  *
     27  *    AUTHOR		: Aniruddha Marathe <aniruddha.marathe (at) wipro.com>
     28  *
     29  *    SIGNALS
     30  *	Uses SIGUSR1 to pause before test if option set.
     31  *	(See the parse_opts(3) man page).
     32  *
     33  *    DESCRIPTION
     34  *    This is a Phase I test for the sysfs(2) system call.
     35  *    It is intended to provide a limited exposure of the system call.
     36  *    This test is run for option 2 for sysfs(2)
     37  *
     38  *	Setup:
     39  *	  Setup signal handling.
     40  *	  Pause for SIGUSR1 if option specified.
     41  *
     42  *	Test:
     43  *	 Loop if the proper options are given.
     44  *	  Execute system call
     45  *	  Check return code, if system call failed (return=-1)
     46  *		Log the errno and Issue a FAIL message.
     47  *	  Otherwise, Issue a PASS message.
     48  *
     49  *	Cleanup:
     50  *	  Print errno log and/or timing stats if options given
     51  *
     52  * USAGE:  <for command-line>
     53  * sysfs02  [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-h] [-t] [-p] [-f]
     54  * where:
     55  *	-c n : run n copies simultaneously
     56  *	-e   : Turn on errno logging.
     57  *	-i n : Execute test n times.
     58  *	-I x : Execute test for x seconds.
     59  *	-p   : Pause for SIGUSR1 before starting
     60  *	-P x : Pause for x seconds between iterations.
     61  *	-t   : Turn on syscall timing.
     62  *
     63  *RESTRICTIONS:
     64  *There is no glibc or libc support
     65  *****************************************************************************/
     66 
     67 #include <errno.h>
     68 #include <unistd.h>
     69 #include <sys/syscall.h>
     70 #include "test.h"
     71 #include "lapi/syscalls.h"
     72 
     73 static void setup();
     74 static void cleanup();
     75 
     76 char *TCID = "sysfs02";
     77 int TST_TOTAL = 1;
     78 
     79 int main(int ac, char **av)
     80 {
     81 	int lc;
     82 	char buf[40];		/* 40 bytes suffice to store fs name */
     83 
     84 	tst_parse_opts(ac, av, NULL, NULL);
     85 
     86 	setup();
     87 
     88 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     89 
     90 		tst_count = 0;
     91 
     92 		/*option 2 buf holds fs name */
     93 		TEST(ltp_syscall(__NR_sysfs, 2, 0, buf));
     94 
     95 		/* check return code */
     96 		if (TEST_RETURN == -1) {
     97 			tst_resm(TFAIL, "sysfs(2) Failed for "
     98 				 "option 2 and returned"
     99 				 " %d as error number", TEST_ERRNO);
    100 		} else {
    101 			tst_resm(TPASS, "sysfs(2) Passed for option 2");
    102 		}
    103 	}			/*End of TEST_LOOPING */
    104 
    105 	/*Clean up and exit */
    106 	cleanup();
    107 
    108 	tst_exit();
    109 }
    110 
    111 /* setup() - performs all ONE TIME setup for this test */
    112 void setup(void)
    113 {
    114 
    115 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    116 
    117 	TEST_PAUSE;
    118 }
    119 
    120 /*
    121  * cleanup() - Performs one time cleanup for this test at
    122  * completion or premature exit
    123  */
    124 void cleanup(void)
    125 {
    126 
    127 }
    128