102 lines
2.1 KiB
C
102 lines
2.1 KiB
C
/*
|
|
* Copyright (c) 2014 Fujitsu Ltd.
|
|
* Author: Zeng Linggang <zenglg.jy@cn.fujitsu.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of version 2 of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
/*
|
|
* DESCRIPTION
|
|
* Check sbrk() with error condition that should produce ENOMEM.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include "test.h"
|
|
|
|
#define INC 16*1024*1024
|
|
|
|
char *TCID = "sbrk02";
|
|
int TST_TOTAL = 1;
|
|
|
|
static void setup(void);
|
|
static void sbrk_verify(void);
|
|
static void cleanup(void);
|
|
|
|
static long increment = INC;
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int lc;
|
|
int i;
|
|
|
|
tst_parse_opts(argc, argv, NULL, NULL);
|
|
|
|
setup();
|
|
|
|
for (lc = 0; TEST_LOOPING(lc); lc++) {
|
|
tst_count = 0;
|
|
for (i = 0; i < TST_TOTAL; i++)
|
|
sbrk_verify();
|
|
}
|
|
|
|
cleanup();
|
|
tst_exit();
|
|
}
|
|
|
|
static void setup(void)
|
|
{
|
|
void *ret = NULL;
|
|
|
|
tst_sig(NOFORK, DEF_HANDLER, cleanup);
|
|
|
|
TEST_PAUSE;
|
|
|
|
/* call sbrk until it fails or increment overflows */
|
|
while (ret != (void *)-1 && increment > 0) {
|
|
ret = sbrk(increment);
|
|
increment += INC;
|
|
}
|
|
tst_resm(TINFO | TERRNO, "setup() bailing inc: %ld, ret: %p, sbrk: %p",
|
|
increment, ret, sbrk(0));
|
|
|
|
errno = 0;
|
|
}
|
|
|
|
static void sbrk_verify(void)
|
|
{
|
|
void *tret;
|
|
|
|
tret = sbrk(increment);
|
|
TEST_ERRNO = errno;
|
|
|
|
if (tret != (void *)-1) {
|
|
tst_resm(TFAIL,
|
|
"sbrk(%ld) returned %p, expected (void *)-1, errno=%d",
|
|
increment, tret, ENOMEM);
|
|
return;
|
|
}
|
|
|
|
if (TEST_ERRNO == ENOMEM) {
|
|
tst_resm(TPASS | TTERRNO, "sbrk(%ld) failed as expected",
|
|
increment);
|
|
} else {
|
|
tst_resm(TFAIL | TTERRNO,
|
|
"sbrk(%ld) failed unexpectedly; expected: %d - %s",
|
|
increment, ENOMEM, strerror(ENOMEM));
|
|
}
|
|
}
|
|
|
|
static void cleanup(void)
|
|
{
|
|
}
|