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/* Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <dlfcn.h>
#include <gconv.h>
#include <stdio.h>
#include <string.h>
#include <wchar.h>
#include <wcsmbsload.h>
int
wctob (c)
wint_t c;
{
char buf[MB_LEN_MAX];
struct __gconv_step_data data;
wchar_t inbuf[1];
wchar_t *inptr = inbuf;
size_t dummy;
int status;
/* Tell where we want the result. */
data.__outbuf = buf;
data.__outbufend = buf + MB_LEN_MAX;
data.__invocation_counter = 0;
data.__internal_use = 1;
data.__flags = __GCONV_IS_LAST;
data.__statep = &data.__state;
data.__trans = NULL;
/* Make sure we start in the initial state. */
memset (&data.__state, '\0', sizeof (mbstate_t));
/* Make sure we use the correct function. */
update_conversion_ptrs ();
/* Create the input string. */
inbuf[0] = c;
status = DL_CALL_FCT (__wcsmbs_gconv_fcts.tomb->__fct,
(__wcsmbs_gconv_fcts.tomb, &data,
(const unsigned char **) &inptr,
(const unsigned char *) &inbuf[1],
NULL, &dummy, 0, 1));
/* The conversion failed or the output is too long. */
if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT
&& status != __GCONV_EMPTY_INPUT)
|| data.__outbuf != (unsigned char *) (buf + 1))
return EOF;
return (unsigned char) buf[0];
}
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