/* Copyright (C) 1991-2018 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 <stdlib.h>

#include <string.h>

#include <wchar.h>

#include <gconv.h>

#include <wcsmbs/wcsmbsload.h>

/* Shared with __wctomb_chk.  */

mbstate_t __wctomb_state attribute_hidden;

/* Convert WCHAR into its multibyte character representation,

   putting this in S and returning its length.

   Attention: this function should NEVER be intentionally used.

   The interface is completely stupid.  The state is shared between

   all conversion functions.  You should use instead the restartable

   version `wcrtomb'.  */

int

wctomb (char *s, wchar_t wchar)

{

  /* If S is NULL the function has to return null or not null

     depending on the encoding having a state depending encoding or

     not.  */

  if (s == NULL)

    {

      const struct gconv_fcts *fcts;

      /* Get the conversion functions.  */

      fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE));

      /* This is an extension in the Unix standard which does not directly

	 violate ISO C.  */

      memset (&__wctomb_state, '\0', sizeof __wctomb_state);

      return fcts->tomb->__stateful;

    }

  return __wcrtomb (s, wchar, &__wctomb_state);

}

libc_hidden_def (wctomb)