| /* |
| * |
| * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * NAME |
| * msgget04.c |
| * |
| * DESCRIPTION |
| * msgget04 - test for an EACCES error by creating a message queue |
| * with no read or write permission and then attempting |
| * to access it with various permissions. |
| * |
| * ALGORITHM |
| * Create a message queue with no read or write permission |
| * loop if that option was specified |
| * Try to access the message queue with various permissions |
| * check the errno value |
| * issue a PASS message if we get EACCES |
| * otherwise, the tests fails |
| * issue a FAIL message |
| * break any remaining tests |
| * call cleanup |
| * |
| * USAGE: <for command-line> |
| * msgget04 [-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 |
| * |
| * RESTRICTIONS |
| * none |
| */ |
| #include <pwd.h> |
| #include "test.h" |
| #include "usctest.h" |
| |
| #include "ipcmsg.h" |
| |
| char *TCID = "msgget04"; |
| int TST_TOTAL = 3; |
| extern int Tst_count; |
| |
| char nobody_uid[] = "nobody"; |
| struct passwd *ltpuser; |
| |
| int exp_enos[] = { EACCES, 0 }; /* 0 terminated list of expected errnos */ |
| |
| int msg_q_1 = -1; /* to hold the message queue id */ |
| |
| int test_flags[] = { MSG_RD, MSG_WR, MSG_RD | MSG_WR }; |
| |
| int main(int ac, char **av) |
| { |
| int lc; /* loop counter */ |
| char *msg; /* message returned from parse_opts */ |
| int i; /* a counter */ |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) { |
| tst_brkm(TBROK, cleanup, "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; |
| |
| /* loop through the test cases */ |
| |
| for (i = 0; i < TST_TOTAL; i++) { |
| /* |
| * Try to access the message queue with specified |
| * permissions. |
| */ |
| |
| TEST(msgget(msgkey, test_flags[i])); |
| |
| if (TEST_RETURN != -1) { |
| tst_resm(TFAIL, "call succeeded " |
| "when EACCES error expected"); |
| continue; |
| } |
| |
| TEST_ERROR_LOG(TEST_ERRNO); |
| |
| switch (TEST_ERRNO) { |
| case EACCES: |
| tst_resm(TPASS, "expected failure - errno = " |
| "%d : %s", TEST_ERRNO, |
| strerror(TEST_ERRNO)); |
| break; |
| default: |
| tst_resm(TFAIL, "call failed with an " |
| "unexpected error - %d : %s", |
| TEST_ERRNO, strerror(TEST_ERRNO)); |
| break; |
| } |
| } |
| } |
| |
| cleanup(); |
| |
| /*NOTREACHED*/ return 0; |
| } |
| |
| /* |
| * setup() - performs all the ONE TIME setup for this test. |
| */ |
| void setup(void) |
| { |
| /* capture signals */ |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Set up the expected error numbers for -e option */ |
| TEST_EXP_ENOS(exp_enos); |
| |
| /* Pause if that option was specified */ |
| TEST_PAUSE; |
| |
| /* Switch to nobody user for correct error code collection */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, tst_exit, "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(); |
| |
| /* |
| * Create the message queue without specifying permissions. |
| */ |
| if ((msg_q_1 = msgget(msgkey, IPC_CREAT | IPC_EXCL)) == -1) { |
| tst_brkm(TBROK, cleanup, "Could not create message queue" |
| " - errno = %d : %s", errno, strerror(errno)); |
| } |
| } |
| |
| /* |
| * 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 */ |
| rm_queue(msg_q_1); |
| |
| /* Remove the temporary directory */ |
| tst_rmdir(); |
| |
| /* |
| * print timing stats if that option was specified. |
| * print errno log if that option was specified. |
| */ |
| TEST_CLEANUP; |
| |
| /* exit with return code appropriate for results */ |
| tst_exit(); |
| } |