wcrtomb.c revision 102050 
1235267Sgabor/*-
2235267Sgabor * Copyright (c) 2002 Tim J. Robbins.
3235267Sgabor * All rights reserved.
4235267Sgabor *
5235434Sgabor * Redistribution and use in source and binary forms, with or without
6235267Sgabor * modification, are permitted provided that the following conditions
7235434Sgabor * are met:
8235267Sgabor * 1. Redistributions of source code must retain the above copyright
9235434Sgabor *    notice, this list of conditions and the following disclaimer.
10235434Sgabor * 2. Redistributions in binary form must reproduce the above copyright
11235434Sgabor *    notice, this list of conditions and the following disclaimer in the
12235434Sgabor *    documentation and/or other materials provided with the distribution.
13235434Sgabor *
14235434Sgabor * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15235434Sgabor * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16235434Sgabor * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/lib/libc/locale/wcrtomb.c 102050 2002-08-18 06:30:10Z tjr $");
29
30#include <errno.h>
31#include <rune.h>
32#include <stdlib.h>
33#include <wchar.h>
34
35size_t
36wcrtomb(char *__restrict s, wchar_t wc, mbstate_t *__restrict ps __unused)
37{
38	char *e;
39
40	sputrune(wc, s, MB_CUR_MAX, &e);
41	if (e == NULL) {
42		errno = EILSEQ;
43		return ((size_t)-1);
44	}
45	return ((size_t)(e - s));
46}
47