xref: /illumos-gate/usr/src/lib/libc/port/locale/wcstombs.c (revision 2c5ec7a875dcd76853e6618614e990f1e8cdd56d)
1 /*
2  * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3  * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
4  * Copyright (c) 2002-2004 Tim J. Robbins.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include "lint.h"
30 #include <limits.h>
31 #include <stdlib.h>
32 #include <wchar.h>
33 #include "mblocal.h"
34 #include "localeimpl.h"
35 #include "lctype.h"
36 
37 size_t
38 wcstombs_l(char *_RESTRICT_KYWD s, const wchar_t *_RESTRICT_KYWD pwcs,
39     size_t n, locale_t loc)
40 {
41 	static const mbstate_t initial = { 0 };
42 	mbstate_t mbs;
43 	const wchar_t *pwcsp;
44 
45 	mbs = initial;
46 	pwcsp = pwcs;
47 	return (loc->ctype->lc_wcsnrtombs(s, &pwcsp, ULONG_MAX, n, &mbs));
48 }
49 
50 size_t
51 wcstombs(char *_RESTRICT_KYWD s, const wchar_t *_RESTRICT_KYWD pwcs, size_t n)
52 {
53 	return (wcstombs_l(s, pwcs, n, uselocale(NULL)));
54 }
55