test/ipc/shmdt/shmdt02.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  *      shmdt02.c
  23  *
  24  * DESCRIPTION
  25  *      shmdt02 - check for EINVAL error
  26  *
  27  * ALGORITHM
  28  *      loop if that option was specified
  29  *        call shmdt() using an invalid shared memory address
  30  *        check the errno value
  31  *          issue a PASS message if we get EINVAL
  32  *        otherwise, the tests fails
  33  *          issue a FAIL message
  34  *      call cleanup
  35  *
  36  * USAGE:  <for command-line>
  37  *  shmdt02 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
  38  *     where,  -c n : Run n copies concurrently.
  39  *             -e   : Turn on errno logging.
  40  *             -i n : Execute test n times.
  41  *             -I x : Execute test for x seconds.
  42  *             -P x : Pause for x seconds between iterations.
  43  *             -t   : Turn on syscall timing.
  44  *
  45  * HISTORY
  46  *      03/2001 - Written by Wayne Boyer
  47  *
  48  * RESTRICTIONS
  49  *      none
  50  */
  51
  52 #include "ipcshm.h"
  53
  54 char *TCID = "shmdt02";
  55 int TST_TOTAL = 1;
  56 extern int Tst_count;
  57
  58 int exp_enos[] = {EINVAL, 0};   /* 0 terminated list of expected errnos */
  59
  60 int main(int ac, char **av)
  61 {
  62         int lc;                         /* loop counter */
  63         char *msg;                      /* message returned from parse_opts */
  64         int unshared;                   /* a local variable to use to produce */                                        /* the error in the shmdt() call */
  65
  66         /* parse standard options */
  67         if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
  68                 tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
  69         }
  70
  71         setup();                        /* global setup */
  72
  73         /* The following loop checks looping state if -i option given */
  74
  75         for (lc = 0; TEST_LOOPING(lc); lc++) {
  76                 /* reset Tst_count in case we are looping */
  77                 Tst_count = 0;
  78
  79                 /*
  80                  * make the call using the TEST() macro - attempt to
  81                  * remove an invalid shared memory address
  82                  */
  83
  84                 TEST(shmdt(&unshared));
  85
  86                 if (TEST_RETURN != -1) {
  87                         tst_brkm(TFAIL, cleanup, "call succeeded unexpectedly");
  88                 }
  89
  90                 TEST_ERROR_LOG(TEST_ERRNO);
  91
  92                 switch(TEST_ERRNO) {
  93                 case EINVAL:
  94                         tst_resm(TPASS, "expected failure - errno = %d : %s",
  95                                  TEST_ERRNO, strerror(TEST_ERRNO));
  96                         break;
  97                 default:
  98                         tst_resm(TFAIL, "call failed with an unexpected error "
  99                                  "- %d : %s", TEST_ERRNO, strerror(TEST_ERRNO));
 100
 101                 }
 102         }
 103
 104         cleanup();
 105
 106         /*NOTREACHED*/
 107         return(0);
 108 }
 109
 110 /*
 111  * setup() - performs all the ONE TIME setup for this test.
 112  */
 113 void
 114 setup(void)
 115 {
 116         /* capture signals */
 117         tst_sig(NOFORK, DEF_HANDLER, cleanup);
 118
 119         /* Set up the expected error numbers for -e option */
 120         TEST_EXP_ENOS(exp_enos);
 121
 122         /* Pause if that option was specified */
 123         TEST_PAUSE;
 124 }
 125
 126 /*
 127  * cleanup() - performs all the ONE TIME cleanup for this test at completion
 128  *             or premature exit.
 129  */
 130 void
 131 cleanup(void)
 132 {
 133         /*
 134          * print timing stats if that option was specified.
 135          * print errno log if that option was specified.
 136          */
 137         TEST_CLEANUP;
 138
 139         /* exit with return code appropriate for results */
 140         tst_exit();
 141 }
 142