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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  * NAME
     22  *	fsync03.c
     23  *
     24  * DESCRIPTION
     25  *	Testcase to check that fsync(2) sets errno correctly.
     26  *
     27  * ALGORITHM
     28  *	1. Call fsync() with an invalid fd, and test for EBADF.
     29  *	2. Call fsync() on a pipe(fd), and expect EINVAL.
     30  *
     31  * USAGE:  <for command-line>
     32  *  fsync03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
     33  *     where,  -c n : Run n copies concurrently.
     34  *             -e   : Turn on errno logging.
     35  *             -i n : Execute test n times.
     36  *             -I x : Execute test for x seconds.
     37  *             -P x : Pause for x seconds between iterations.
     38  *             -t   : Turn on syscall timing.
     39  *
     40  * HISTORY
     41  *	07/2001 Ported by Wayne Boyer
     42  *
     43  * RESTRICTIONS
     44  *	NONE
     45  */
     46 
     47 #include <unistd.h>
     48 #include <errno.h>
     49 #include "test.h"
     50 
     51 void setup(void);
     52 void cleanup(void);
     53 
     54 int fd[2];			/* fd's for the pipe() call in setup()  */
     55 int pfd;			/* holds the value for fd[1]            */
     56 int bfd = -1;			/* an invalid fd                        */
     57 
     58 struct test_case_t {
     59 	int *fd;
     60 	int error;
     61 } TC[] = {
     62 	/* EBADF - fd is invalid (-1) */
     63 	{
     64 	&bfd, EBADF},
     65 	    /* EINVAL - fsync() on pipe should not succeed. */
     66 	{
     67 	&pfd, EINVAL}
     68 };
     69 
     70 char *TCID = "fsync03";
     71 int TST_TOTAL = 2;
     72 
     73 int main(int ac, char **av)
     74 {
     75 	int lc;
     76 	int i;
     77 
     78 	tst_parse_opts(ac, av, NULL, NULL);
     79 
     80 	setup();
     81 
     82 	for (lc = 0; TEST_LOOPING(lc); lc++) {
     83 
     84 		tst_count = 0;
     85 
     86 		/* loop through the test cases */
     87 		for (i = 0; i < TST_TOTAL; i++) {
     88 
     89 			TEST(fsync(*(TC[i].fd)));
     90 
     91 			if (TEST_RETURN != -1) {
     92 				tst_resm(TFAIL, "call succeeded unexpectedly");
     93 				continue;
     94 			}
     95 
     96 			if (TEST_ERRNO == TC[i].error) {
     97 				tst_resm(TPASS, "expected failure - "
     98 					 "errno = %d : %s", TEST_ERRNO,
     99 					 strerror(TEST_ERRNO));
    100 			} else {
    101 				tst_resm(TFAIL, "unexpected error - %d : %s - "
    102 					 "expected %d", TEST_ERRNO,
    103 					 strerror(TEST_ERRNO), TC[i].error);
    104 			}
    105 		}
    106 	}
    107 	cleanup();
    108 
    109 	tst_exit();
    110 }
    111 
    112 /*
    113  * setup() - performs all ONE TIME setup for this test.
    114  */
    115 void setup(void)
    116 {
    117 
    118 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
    119 
    120 	TEST_PAUSE;
    121 
    122 	/* make a temporary directory and cd to it */
    123 	tst_tmpdir();
    124 
    125 	if (pipe(fd) < 0) {
    126 		tst_brkm(TBROK, cleanup, "pipe call failed");
    127 	}
    128 
    129 	pfd = fd[1];
    130 }
    131 
    132 /*
    133  * cleanup() - performs all ONE TIME cleanup for this test at
    134  *	       completion or premature exit.
    135  */
    136 void cleanup(void)
    137 {
    138 
    139 	/* delete the test directory created in setup() */
    140 	tst_rmdir();
    141 
    142 }
    143