/* Test for fnmatch not reading past the end of the pattern.

   Copyright (C) 2014-2018 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 <fnmatch.h>

#include <sys/mman.h>

#include <string.h>

#include <unistd.h>

int

do_bz18036 (void)

{

  const char p[] = "**(!()";

  const int pagesize = getpagesize ();

  char *pattern = mmap (0, 2 * pagesize, PROT_READ|PROT_WRITE,

                        MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);

  if (pattern == MAP_FAILED) return 1;

  mprotect (pattern + pagesize, pagesize, PROT_NONE);

  memset (pattern, ' ', pagesize);

  strcpy (pattern, p);

  return fnmatch (pattern, p, FNM_EXTMATCH);

}

int

do_test (void)

{

  if (fnmatch ("[[:alpha:]'[:alpha:]\0]", "a", 0) != FNM_NOMATCH)

    return 1;

  if (fnmatch ("[a[.\0.]]", "a", 0) != FNM_NOMATCH)

    return 1;

  return do_bz18036 ();

}

#define TEST_FUNCTION do_test ()

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