/* Test for ,ccs= handling in fopen.

   Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001.

   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 <errno.h>

#include <locale.h>

#include <mcheck.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <wchar.h>

#include <sys/resource.h>

static const char inputfile[] = "../iconvdata/testdata/ISO-8859-1";

static int do_test(void);

#define TEST_FUNCTION do_test ()

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

static int

do_bz17916 (void)

{

  /* BZ #17916 -- check invalid large ccs= case.  */

  struct rlimit rl;

  getrlimit (RLIMIT_STACK, &rl);

  rl.rlim_cur = 1024 * 1024;

  setrlimit (RLIMIT_STACK, &rl);

  const size_t sz = 2 * 1024 * 1024;

  char *ccs = xmalloc (sz);

  strcpy (ccs, "r,ccs=");

  memset (ccs + 6, 'A', sz - 6 - 1);

  ccs[sz - 1] = '\0';

  FILE *fp = fopen (inputfile, ccs);

  if (fp != NULL)

    {

      printf ("unxpected success\n");

      return 1;

    }

  free (ccs);

  return 0;

}

static int

do_test (void)

{

  FILE *fp;

  mtrace ();

  setlocale (LC_ALL, "de_DE.UTF-8");

  fp = fopen (inputfile, "r,ccs=ISO-8859-1");

  if (fp == NULL)

    {

      printf ("cannot open \"%s\": %s\n", inputfile, strerror (errno));

      exit (1);

    }

  while (! feof_unlocked (fp))

    {

      wchar_t buf[200];

      if (fgetws_unlocked (buf, sizeof (buf) / sizeof (buf[0]), fp) == NULL)

	break;

      fputws (buf, stdout);

    }

  fclose (fp);

  return do_bz17916 ();

}