test/ipc/semget/semget06.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  *      semget06.c
  23  *
  24  * DESCRIPTION
  25  *      semget06 - test for EINVAL error
  26  *
  27  * ALGORITHM
  28  *      loop if that option was specified
  29  *      call semget() using two different invalid cases - too many and too
  30  *         few primitive semaphores
  31  *      check the errno value
  32  *        issue a PASS message if we get EINVAL
  33  *      otherwise, the tests fails
  34  *        issue a FAIL message
  35  *      call cleanup
  36  *
  37  * USAGE:  <for command-line>
  38  *  semget06 [-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 = "semget06";
  56 int TST_TOTAL = 2;
  57 extern int Tst_count;
  58
  59 #define LARGENUM        1024 * 32
  60 #define SMALLNUM        -1
  61
  62 int exp_enos[] = {EINVAL, 0};   /* 0 terminated list of expected errnos */
  63
  64 int sem_id_1 = -1;
  65
  66 int num_sems[] = {LARGENUM, SMALLNUM};
  67
  68
  69 int main(int ac, char **av)
  70 {
  71         int lc;                         /* loop counter */
  72         char *msg;                      /* message returned from parse_opts */
  73         int i;
  74
  75         /* parse standard options */
  76         if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
  77                 tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
  78         }
  79
  80         setup();                        /* global setup */
  81
  82         /* The following loop checks looping state if -i option given */
  83
  84         for (lc = 0; TEST_LOOPING(lc); lc++) {
  85                 /* reset Tst_count in case we are looping */
  86                 Tst_count = 0;
  87
  88                 /* loop through the test cases */
  89
  90                 for (i=0; i<TST_TOTAL; i++) {
  91                         TEST(semget(semkey, num_sems[i],
  92                                     IPC_CREAT | IPC_EXCL | SEM_RA));
  93
  94                         if (TEST_RETURN != -1) {
  95                                 sem_id_1 = TEST_RETURN;
  96                                 tst_resm(TFAIL, "call succeeded");
  97                                 continue;
  98                         }
  99
 100                         TEST_ERROR_LOG(TEST_ERRNO);
 101
 102                         switch(TEST_ERRNO) {
 103                         case EINVAL:
 104                                 tst_resm(TPASS, "expected failure - errno "
 105                                          "= %d : %s", TEST_ERRNO,
 106                                          strerror(TEST_ERRNO));
 107                                 break;
 108                         default:
 109                                 tst_resm(TFAIL, "unexpected error - %d : %s",
 110                                          TEST_ERRNO, strerror(TEST_ERRNO));
 111                                 break;
 112                         }
 113                 }
 114         }
 115
 116         cleanup();
 117
 118         /*NOTREACHED*/
 119         return(0);
 120 }
 121
 122 /*
 123  * setup() - performs all the ONE TIME setup for this test.
 124  */
 125 void
 126 setup(void)
 127 {
 128         /* capture signals */
 129         tst_sig(NOFORK, DEF_HANDLER, cleanup);
 130
 131         /* Set up the expected error numbers for -e option */
 132         TEST_EXP_ENOS(exp_enos);
 133
 134         /* Pause if that option was specified */
 135         TEST_PAUSE;
 136
 137         /*
 138          * Create a temporary directory and cd into it.
 139          * This helps to ensure that a unique msgkey is created.
 140          * See ../lib/libipc.c for more information.
 141          */
 142         tst_tmpdir();
 143
 144         /* get an IPC resource key */
 145         semkey = getipckey();
 146 }
 147
 148 /*
 149  * cleanup() - performs all the ONE TIME cleanup for this test at completion
 150  *             or premature exit.
 151  */
 152 void
 153 cleanup(void)
 154 {
 155         /* if it exists, remove the semaphore resource */
 156         rm_sema(sem_id_1);
 157
 158         /* Remove the temporary directory */
 159         tst_rmdir();
 160
 161         /*
 162          * print timing stats if that option was specified.
 163          * print errno log if that option was specified.
 164          */
 165         TEST_CLEANUP;
 166
 167         /* exit with return code appropriate for results */
 168         tst_exit();
 169 }
 170