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/*
*
* 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
*/
/*
* Test Name: msync03
*
* Test Description:
* Verify that, msync() fails, when the region to synchronize, is outside
* the address space of the process.
*
* Expected Result:
* msync() should fail with a return value of -1, and errno should be
* set to EINVAL.
*
* Algorithm:
* Setup:
* Setup signal handling.
* Pause for SIGUSR1 if option specified.
*
* Test:
* Loop if the proper options are given.
* Execute system call
* Check return code, if system call failed (return=-1)
* if errno set == expected errno
* Issue sys call fails with expected return value and errno.
* Otherwise,
* Issue sys call fails with unexpected errno.
* Otherwise,
* Issue sys call returns unexpected value.
*
* Cleanup:
* Print errno log and/or timing stats if options given
*
* Usage: <for command-line>
* msync03 [-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
* 07/2001 Ported by Wayne Boyer
*
* RESTRICTIONS:
* None.
*/
#include <errno.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/resource.h>
#include "test.h"
#include "usctest.h"
char *TCID = "msync03"; /* Test program identifier. */
int TST_TOTAL = 1; /* Total number of test cases. */
void *addr; /* addr of memory mapped region */
size_t page_sz; /* system page size */
int exp_enos[] = { EINVAL, 0 };
void setup(); /* Main setup function of test */
void cleanup(); /* cleanup function for the test */
int main(int ac, char **av)
{
int lc;
char *msg;
if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL)
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
setup();
TEST_EXP_ENOS(exp_enos);
for (lc = 0; TEST_LOOPING(lc); lc++) {
tst_count = 0;
TEST(msync(addr, page_sz, MS_ASYNC));
if (TEST_RETURN != -1) {
tst_resm(TFAIL, "msync() returns unexpected "
"value %ld, expected:-1", TEST_RETURN);
continue;
}
if (errno == EINVAL)
tst_resm(TPASS, "msync failed with EINVAL as expected");
else
tst_resm(TFAIL | TERRNO, "msync failed unexpectedly");
}
cleanup();
tst_exit();
}
void setup()
{
struct rlimit brkval;
tst_sig(NOFORK, DEF_HANDLER, cleanup);
TEST_PAUSE;
if ((page_sz = getpagesize()) == -1)
tst_brkm(TBROK | TERRNO, NULL, "getpagesize failed");
getrlimit(RLIMIT_DATA, &brkval);
addr = (void *)brkval.rlim_max;
}
void cleanup()
{
TEST_CLEANUP;
}