xref: /illumos-gate/usr/src/lib/libcurses/screen/mbstowcs.c (revision 1da57d551424de5a9d469760be7c4b4d4f10a755)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*  Copyright (c) 1988 AT&T */
28 /*    All Rights Reserved   */
29 
30 #include <widec.h>
31 #include <sys/types.h>
32 #include <stdlib.h>
33 #include "curses_inc.h"
34 
35 size_t
_curs_mbstowcs(wchar_t * pwcs,const char * s,size_t n)36 _curs_mbstowcs(wchar_t *pwcs, const char *s, size_t n)
37 {
38 	int	i, val;
39 
40 	for (i = 0; i < n; i++) {
41 		if ((val = _curs_mbtowc(pwcs++, s, MB_CUR_MAX)) == -1)
42 			return (val);
43 		if (val == 0)
44 			break;
45 		s += val;
46 	}
47 	return (i);
48 }
49