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/* Test for integer/buffer overflow in strtod.
Copyright (C) 2012-2021 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"
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