test/ipc/semctl/semctl03.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  *      semctl03.c
  23  *
  24  * DESCRIPTION
  25  *      semctl03 - test for EINVAL and EFAULT errors
  26  *
  27  * ALGORITHM
  28  *      create a semaphore set with read and alter permissions
  29  *      loop if that option was specified
  30  *      call semctl() using four different invalid cases
  31  *      check the errno value
  32  *        issue a PASS message if we get EINVAL or EFAULT
  33  *      otherwise, the tests fails
  34  *        issue a FAIL message
  35  *      call cleanup
  36  *
  37  * USAGE:  <for command-line>
  38  *  semctl03 [-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 "ipcsem.h"
  54
  55 #ifdef _XLC_COMPILER
  56 #define SEMUN_CAST
  57 #else
  58 #define SEMUN_CAST (union semun)
  59 #endif
  60
  61 char *TCID = "semctl03";
  62 int TST_TOTAL = 2;
  63 extern int Tst_count;
  64
  65 #ifdef _XLC_COMPILER
  66 #define SEMUN_CAST
  67 #else
  68 #define SEMUN_CAST (union semun)
  69 #endif
  70
  71 int exp_enos[] = {EINVAL, EFAULT, 0};
  72
  73 int sem_id_1 = -1;
  74 int bad_id = -1;
  75
  76 struct semid_ds sem_ds;
  77
  78 struct test_case_t {
  79         int *sem_id;
  80         int ipc_cmd;
  81         union semun arg;
  82         int error;
  83 } TC[4];
  84
  85 void setup_test_case(void)
  86 {
  87         /* EINVAL - the IPC command is not valid */
  88         /* {&sem_id_1, -1, SEMUN_CAST &sem_ds, EINVAL}, */
  89     TC[0].sem_id = &sem_id_1;
  90     TC[0].ipc_cmd = -1;
  91     TC[0].arg.buf = &sem_ds;
  92     TC[0].error = EINVAL;
  93
  94         /* EINVAL - the semaphore ID is not valid */
  95         /* {&bad_id, IPC_STAT, SEMUN_CAST &sem_ds, EINVAL}, */
  96     TC[1].sem_id = &bad_id;
  97     TC[1].ipc_cmd = IPC_STAT;
  98     TC[1].arg.buf = &sem_ds;
  99     TC[1].error = EINVAL;
 100
 101 #if 0
 102 /* EFAULT address can't be detected well in Minix. */
 103         /* EFAULT - the union arg is invalid when expecting "ushort *array" */
 104         /* {&sem_id_1, GETALL, SEMUN_CAST -1, EFAULT}, */
 105     TC[2].sem_id = &sem_id_1;
 106     TC[2].ipc_cmd = GETALL;
 107     TC[2].arg.val = -1;
 108     TC[2].error = EFAULT;
 109
 110         /* EFAULT - the union arg is invalid when expecting */
 111         /* "struct semid_ds *buf */
 112         /* {&sem_id_1, IPC_SET, SEMUN_CAST -1, EFAULT} */
 113     TC[3].sem_id = &sem_id_1;
 114     TC[3].ipc_cmd = IPC_SET;
 115     TC[3].arg.val = -1;
 116     TC[3].error = EFAULT;
 117 #endif
 118 }
 119
 120 int main(int ac, char **av)
 121 {
 122         int lc;                         /* loop counter */
 123         char *msg;                      /* message returned from parse_opts */
 124         int i;
 125
 126         /* parse standard options */
 127         if ((msg = parse_opts(ac, av, (option_t *)NULL, NULL)) != (char *)NULL){
 128                 tst_brkm(TBROK, cleanup, "OPTION PARSING ERROR - %s", msg);
 129         }
 130
 131         setup();                        /* global setup */
 132
 133         /* The following loop checks looping state if -i option given */
 134
 135         for (lc = 0; TEST_LOOPING(lc); lc++) {
 136                 /* reset Tst_count in case we are looping */
 137                 Tst_count = 0;
 138
 139                 for (i=0; i<TST_TOTAL; i++) {
 140
 141                         TEST(semctl(*(TC[i].sem_id), 0, TC[i].ipc_cmd,
 142                              TC[i].arg));
 143
 144                         if (TEST_RETURN != -1) {
 145                                 tst_resm(TFAIL, "call succeeded unexpectedly");
 146                                 continue;
 147                         }
 148
 149                         TEST_ERROR_LOG(TEST_ERRNO);
 150
 151                         if (TEST_ERRNO == TC[i].error) {
 152                                 tst_resm(TPASS, "expected failure - errno = %d"
 153                                          " : %s", TEST_ERRNO,
 154                                          strerror(TEST_ERRNO));
 155                         } else {
 156                                 tst_resm(TFAIL, "unexpected error - %d : %s",
 157                                          TEST_ERRNO, strerror(TEST_ERRNO));
 158                         }
 159                 }
 160         }
 161
 162         cleanup();
 163
 164         /*NOTREACHED*/
 165         return(0);
 166 }
 167
 168 /*
 169  * setup() - performs all the ONE TIME setup for this test.
 170  */
 171 void
 172 setup(void)
 173 {
 174     setup_test_case();
 175
 176         /* capture signals */
 177         tst_sig(NOFORK, DEF_HANDLER, cleanup);
 178
 179         /* Set up the expected error numbers for -e option */
 180         TEST_EXP_ENOS(exp_enos);
 181
 182         /* Pause if that option was specified */
 183         TEST_PAUSE;
 184
 185         /*
 186          * Create a temporary directory and cd into it.
 187          * This helps to ensure that a unique msgkey is created.
 188          * See ../lib/libipc.c for more information.
 189          */
 190         tst_tmpdir();
 191
 192         /* get an IPC resource key */
 193         semkey = getipckey();
 194
 195         /* create a semaphore set with read and alter permissions */
 196         if ((sem_id_1 =
 197              semget(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA)) == -1) {
 198                 tst_brkm(TBROK, cleanup, "couldn't create semaphore in setup");
 199         }
 200 }
 201
 202 /*
 203  * cleanup() - performs all the ONE TIME cleanup for this test at completion
 204  *             or premature exit.
 205  */
 206 void
 207 cleanup(void)
 208 {
 209         /* if it exists, remove the semaphore resouce */
 210         rm_sema(sem_id_1);
 211
 212         /* Remove the temporary directory */
 213         tst_rmdir();
 214
 215         /*
 216          * print timing stats if that option was specified.
 217          * print errno log if that option was specified.
 218          */
 219         TEST_CLEANUP;
 220
 221         /* exit with return code appropriate for results */
 222         tst_exit();
 223 }
 224