/* Test for fmemopen implementation.

   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Hanno Mueller, kontakt@hanno.de, 2000.

   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/>.  */

static char buffer[] = "foobar";

#include <errno.h>

#include <stdio.h>

#include <string.h>

#include <errno.h>

#include <mcheck.h>

static int

do_bz18820 (void)

{

  char ch;

  FILE *stream;

  errno = 0;

  stream = fmemopen (&ch, 1, "?");

  if (stream)

    {

      printf ("fmemopen: expected NULL, got %p\n", stream);

      fclose (stream);

      return 1;

    }

  if (errno != EINVAL)

    {

      printf ("fmemopen: got %i, expected EINVAL (%i)\n", errno, EINVAL);

      return 10;

    }

  stream = fmemopen (NULL, 42, "?");

  if (stream)

    {

      printf ("fmemopen: expected NULL, got %p\n", stream);

      fclose (stream);

      return 2;

    }

  errno = 0;

  stream = fmemopen (NULL, ~0, "w");

  if (stream)

    {

      printf ("fmemopen: expected NULL, got %p\n", stream);

      fclose (stream);

      return 3;

    }

  if (errno != ENOMEM)

    {

      printf ("fmemopen: got %i, expected ENOMEM (%i)\n", errno, ENOMEM);

      return 20;

    }

  return 0;

}

static int

do_test (void)

{

  int ch;

  FILE *stream;

  int ret = 0;

  mtrace ();

  stream = fmemopen (buffer, strlen (buffer), "r+");

  while ((ch = fgetc (stream)) != EOF)

    printf ("Got %c\n", ch);

  fputc ('1', stream);

  if (fflush (stream) != EOF || errno != ENOSPC)

    {

      printf ("fflush didn't fail with ENOSPC\n");

      ret = 1;

    }

  fclose (stream);

  return ret + do_bz18820 ();

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"