/* Test for integer/buffer overflow in strtod.

   Copyright (C) 2012-2018 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

   <http://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"