| /* |
| * |
| * Copyright (c) International Business Machines Corp., 2001 |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * NAME |
| * msgrcv02.c |
| * |
| * DESCRIPTION |
| * msgrcv02 - test for EACCES and EFAULT errors |
| * |
| * ALGORITHM |
| * create a message queue with read/write permissions |
| * initialize a message buffer with a known message and type |
| * enqueue the message |
| * create another message queue without read/write permissions |
| * loop if that option was specified |
| * call msgrcv() using two different invalid cases |
| * check the errno value |
| * issue a PASS message if we get EACCES or EFAULT |
| * otherwise, the tests fails |
| * issue a FAIL message |
| * call cleanup |
| * |
| * USAGE: <for command-line> |
| * msgrcv02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] |
| * where, -c n : Run n copies concurrently. |
| * -e : Turn on errno logging. |
| * -i n : Execute test n times. |
| * -I x : Execute test for x seconds. |
| * -P x : Pause for x seconds between iterations. |
| * -t : Turn on syscall timing. |
| * |
| * HISTORY |
| * 03/2001 - Written by Wayne Boyer |
| * 14/03/2008 Matthieu Fertré (Matthieu.Fertre@irisa.fr) |
| * - Fix concurrency issue. The second key used for this test could |
| * conflict with the key from another task. |
| |
| * |
| * RESTRICTIONS |
| * none |
| */ |
| |
| #include <pwd.h> |
| |
| #include "test.h" |
| #include "usctest.h" |
| |
| #include "ipcmsg.h" |
| |
| void cleanup(void); |
| void setup(void); |
| |
| char *TCID = "msgrcv02"; |
| int TST_TOTAL = 2; |
| |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| int exp_enos[] = { EACCES, EFAULT, 0 }; |
| |
| int msg_q_1 = -1; /* The message queue ID created in setup */ |
| int msg_q_2 = -1; /* Another message queue ID created in setup */ |
| MSGBUF snd_buf, rcv_buf; |
| |
| struct test_case_t { |
| int *queue_id; |
| MSGBUF *mbuf; |
| int error; |
| } TC[] = { |
| /* EACCES - the queue has no read access */ |
| { |
| &msg_q_2, &rcv_buf, EACCES}, |
| /* EFAULT - the message buffer address is invalid */ |
| { |
| &msg_q_1, (MSGBUF *) - 1, EFAULT} |
| }; |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| char *msg; |
| int i; |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| } |
| |
| setup(); /* global setup */ |
| |
| /* The following loop checks looping state if -i option given */ |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| /* reset Tst_count in case we are looping */ |
| Tst_count = 0; |
| |
| for (i = 0; i < TST_TOTAL; i++) { |
| |
| /* |
| * Use the TEST macro to make the call |
| */ |
| |
| TEST(msgrcv(*(TC[i].queue_id), TC[i].mbuf, MSGSIZE, |
| 1, IPC_NOWAIT)); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded unexpectedly"); |
| continue; |
| } |
| |
| TEST_ERROR_LOG(TEST_ERRNO); |
| |
| if (TEST_ERRNO == TC[i].error) { |
| tst_resm(TPASS, "expected failure - errno = " |
| "%d : %s", TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| } else { |
| tst_resm(TFAIL, "call failed with an " |
| "unexpected error - %d : %s", |
| TEST_ERRNO, strerror(TEST_ERRNO)); |
| } |
| } |
| } |
| |
| cleanup(); |
| |
| tst_exit(); |
| } |
| |
| /* |
| * setup() - performs all the ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| key_t msgkey2; |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Set up the expected error numbers for -e option */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| TEST_PAUSE; |
| |
| /* Switch to nobody user for correct error code collection */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, NULL, "Test must be run as root"); |
| } |
| ltpuser = getpwnam(nobody_uid); |
| if (setuid(ltpuser->pw_uid) == -1) { |
| tst_resm(TINFO, "setuid failed to " |
| "to set the effective uid to %d", ltpuser->pw_uid); |
| perror("setuid"); |
| } |
| |
| /* |
| * Create a temporary directory and cd into it. |
| * This helps to ensure that a unique msgkey is created. |
| * See ../lib/libipc.c for more information. |
| */ |
| tst_tmpdir(); |
| |
| msgkey = getipckey(); |
| |
| /* Get an new IPC resource key. */ |
| msgkey2 = getipckey(); |
| |
| /* create a message queue with read/write permission */ |
| if ((msg_q_1 = msgget(msgkey, IPC_CREAT | IPC_EXCL | MSG_RW)) == -1) { |
| tst_brkm(TBROK, cleanup, "Can't create message queue #1"); |
| } |
| |
| /* initialize a message buffer */ |
| init_buf(&snd_buf, MSGTYPE, MSGSIZE); |
| |
| /* put it on msq_q_1 */ |
| if (msgsnd(msg_q_1, &snd_buf, MSGSIZE, IPC_NOWAIT) == -1) { |
| tst_brkm(TBROK, cleanup, "Couldn't put message on queue"); |
| } |
| |
| /* create a message queue without read/write permission */ |
| if ((msg_q_2 = msgget(msgkey2, IPC_CREAT | IPC_EXCL)) == -1) { |
| tst_brkm(TBROK, cleanup, "Can't create message queue #2"); |
| } |
| } |
| |
| /* |
| * cleanup() - performs all the ONE TIME cleanup for this test at completion |
| * or premature exit. |
| */ |
| void cleanup(void) |
| { |
| /* if it exists, remove the message queue #1 */ |
| rm_queue(msg_q_1); |
| |
| /* if it exists, remove the message queue #2 */ |
| rm_queue(msg_q_2); |
| |
| tst_rmdir(); |
| |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| } |