mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-09 14:50:05 +00:00
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* Test for integer/buffer overflow in strtod.
|
|
Copyright (C) 2012-2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <support/blob_repeat.h>
|
|
#include <support/test-driver.h>
|
|
|
|
#define EXPONENT "e-2147483649"
|
|
#define SIZE 214748364
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct support_blob_repeat repeat = support_blob_repeat_allocate
|
|
("0", 1, 1 + SIZE + sizeof (EXPONENT));
|
|
if (repeat.size == 0)
|
|
{
|
|
puts ("warning: memory allocation failed, cannot test for overflow");
|
|
return EXIT_UNSUPPORTED;
|
|
}
|
|
char *p = repeat.start;
|
|
p[0] = '1';
|
|
memcpy (p + 1 + SIZE, EXPONENT, sizeof (EXPONENT));
|
|
double d = strtod (p, NULL);
|
|
if (d != 0)
|
|
{
|
|
printf ("error: strtod returned wrong value: %a\n", d);
|
|
return 1;
|
|
}
|
|
support_blob_repeat_free (&repeat);
|
|
return 0;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#define TIMEOUT 30
|
|
#include "../test-skeleton.c"
|