xref: /illumos-gate/usr/src/lib/libc/port/locale/mbrtowc.c (revision 0ac311ba)
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 <wchar.h>
31 #include "mblocal.h"
32 #include "localeimpl.h"
33 #include "lctype.h"
34 
35 size_t
mbrtowc_l(wchar_t * _RESTRICT_KYWD pwc,const char * _RESTRICT_KYWD s,size_t n,mbstate_t * _RESTRICT_KYWD ps,locale_t loc)36 mbrtowc_l(wchar_t *_RESTRICT_KYWD pwc, const char *_RESTRICT_KYWD s,
37     size_t n, mbstate_t *_RESTRICT_KYWD ps, locale_t loc)
38 {
39 	static mbstate_t mbs;
40 
41 	if (ps == NULL)
42 		ps = &mbs;
43 	return (loc->ctype->lc_mbrtowc(pwc, s, n, ps, B_FALSE));
44 }
45 
46 size_t
mbrtowc(wchar_t * _RESTRICT_KYWD pwc,const char * _RESTRICT_KYWD s,size_t n,mbstate_t * _RESTRICT_KYWD ps)47 mbrtowc(wchar_t *_RESTRICT_KYWD pwc, const char *_RESTRICT_KYWD s,
48     size_t n, mbstate_t *_RESTRICT_KYWD ps)
49 {
50 	return (mbrtowc_l(pwc, s, n, ps, uselocale(NULL)));
51 }
52 
53 size_t
mbrtowc_nz_l(wchar_t * _RESTRICT_KYWD pwc,const char * _RESTRICT_KYWD s,size_t n,mbstate_t * _RESTRICT_KYWD ps,locale_t loc)54 mbrtowc_nz_l(wchar_t *_RESTRICT_KYWD pwc, const char *_RESTRICT_KYWD s,
55     size_t n, mbstate_t *_RESTRICT_KYWD ps, locale_t loc)
56 {
57 	static mbstate_t mbs;
58 
59 	if (ps == NULL)
60 		ps = &mbs;
61 	return (loc->ctype->lc_mbrtowc(pwc, s, n, ps, B_TRUE));
62 }
63 
64 size_t
mbrtowc_nz(wchar_t * _RESTRICT_KYWD pwc,const char * _RESTRICT_KYWD s,size_t n,mbstate_t * _RESTRICT_KYWD ps)65 mbrtowc_nz(wchar_t *_RESTRICT_KYWD pwc, const char *_RESTRICT_KYWD s,
66     size_t n, mbstate_t *_RESTRICT_KYWD ps)
67 {
68 	return (mbrtowc_nz_l(pwc, s, n, ps, uselocale(NULL)));
69 }
70