test/ipc/semget/semget03.c

   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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  18  */
  19
  20 /*
  21  * NAME
  22  *      semget03.c
  23  *
  24  * DESCRIPTION
  25  *      semget03 - test for ENOENT error
  26  *
  27  * ALGORITHM
  28  *      loop if that option was specified
  29  *      call semget() with a valid key but with no associated semaphore set
  30  *         and IPC_CREAT is not asserted
  31  *      check the errno value
  32  *        issue a PASS message if we get ENOENT
  33  *      otherwise, the tests fails
  34  *        issue a FAIL message
  35  *      call cleanup
  36  *
  37  * USAGE:  <for command-line>
  38  *  semget03 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
  39  *     where,  -c n : Run n copies concurrently.
  40  *             -e   : Turn on errno logging.
  41  *             -i n : Execute test n times.
  42  *             -I x : Execute test for x seconds.
  43  *             -P x : Pause for x seconds between iterations.
  44  *             -t   : Turn on syscall timing.
  45  *
  46  * HISTORY
  47  *      03/2001 - Written by Wayne Boyer
  48  *
  49  * RESTRICTIONS
  50  *      none
  51  */
  52
  53 #include "../lib/ipcsem.h"
  54
  55 char *TCID = "semget03";
  56 int TST_TOTAL = 1;
  57 extern int Tst_count;
  58
  59 int exp_enos[] = {ENOENT, 0};   /* 0 terminated list of expected errnos */
  60
  61 int sem_id_1 = -1;
  62
  63 int main(int ac, char **av)
  64 {
  65         int lc;                         /* loop counter */
  66         char *msg;                      /* message returned from parse_opts */
  67
  68         /* parse standard options */
  69         if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
  70                 tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
  71         }
  72
  73         setup();                        /* global setup */
  74
  75         /* The following loop checks looping state if -i option given */
  76
  77         for (lc = 0; TEST_LOOPING(lc); lc++) {
  78                 /* reset Tst_count in case we are looping */
  79                 Tst_count = 0;
  80
  81                 /* use the TEST macro to make the call */
  82
  83                 TEST(semget(semkey, PSEMS, SEM_RA));
  84
  85                 if (TEST_RETURN != -1) {
  86                         sem_id_1 = TEST_RETURN;
  87                         tst_resm(TFAIL, "call succeeded when error expected");
  88                         continue;
  89                 }
  90
  91                 TEST_ERROR_LOG(TEST_ERRNO);
  92
  93                 switch(TEST_ERRNO) {
  94                 case ENOENT:
  95                         tst_resm(TPASS, "expected failure - errno "
  96                                  "= %d : %s", TEST_ERRNO, strerror(TEST_ERRNO));
  97                         break;
  98                 default:
  99                         tst_resm(TFAIL, "unexpected error - %d : %s",
 100                                  TEST_ERRNO, strerror(TEST_ERRNO));
 101                         break;
 102                 }
 103         }
 104
 105         cleanup();
 106
 107         /*NOTREACHED*/
 108         return(0);
 109 }
 110
 111 /*
 112  * setup() - performs all the ONE TIME setup for this test.
 113  */
 114 void
 115 setup(void)
 116 {
 117         /* capture signals */
 118         tst_sig(NOFORK, DEF_HANDLER, cleanup);
 119
 120         /* Set up the expected error numbers for -e option */
 121         TEST_EXP_ENOS(exp_enos);
 122
 123         /* Pause if that option was specified */
 124         TEST_PAUSE;
 125
 126         /*
 127          * Create a temporary directory and cd into it.
 128          * This helps to ensure that a unique msgkey is created.
 129          * See ../lib/libipc.c for more information.
 130          */
 131         tst_tmpdir();
 132
 133         /* get an IPC resource key */
 134         semkey = getipckey();
 135 }
 136
 137 /*
 138  * cleanup() - performs all the ONE TIME cleanup for this test at completion
 139  *             or premature exit.
 140  */
 141 void
 142 cleanup(void)
 143 {
 144         /* if it exists, remove the semaphore resource */
 145         rm_sema(sem_id_1);
 146
 147         /* Remove the temporary directory */
 148         tst_rmdir();
 149
 150         /*
 151          * print timing stats if that option was specified.
 152          * print errno log if that option was specified.
 153          */
 154         TEST_CLEANUP;
 155
 156         /* exit with return code appropriate for results */
 157         tst_exit();
 158 }
 159