xref: /titanic_41/usr/src/lib/libcurses/screen/wcstombs.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate  *
4*7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate  * with the License.
8*7c478bd9Sstevel@tonic-gate  *
9*7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate  *
14*7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate  *
20*7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate  */
22*7c478bd9Sstevel@tonic-gate /*  Copyright (c) 1988 AT&T */
23*7c478bd9Sstevel@tonic-gate /*    All Rights Reserved   */
24*7c478bd9Sstevel@tonic-gate 
25*7c478bd9Sstevel@tonic-gate 
26*7c478bd9Sstevel@tonic-gate /*
27*7c478bd9Sstevel@tonic-gate  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28*7c478bd9Sstevel@tonic-gate  *      All rights reserved.
29*7c478bd9Sstevel@tonic-gate  */
30*7c478bd9Sstevel@tonic-gate 
31*7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*7c478bd9Sstevel@tonic-gate 
33*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
34*7c478bd9Sstevel@tonic-gate 
35*7c478bd9Sstevel@tonic-gate #include <widec.h>
36*7c478bd9Sstevel@tonic-gate #include <limits.h>
37*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
38*7c478bd9Sstevel@tonic-gate #include "curses_inc.h"
39*7c478bd9Sstevel@tonic-gate 
40*7c478bd9Sstevel@tonic-gate size_t
_curs_wcstombs(char * s,const wchar_t * pwcs,size_t n)41*7c478bd9Sstevel@tonic-gate _curs_wcstombs(char *s, const wchar_t *pwcs, size_t n)
42*7c478bd9Sstevel@tonic-gate {
43*7c478bd9Sstevel@tonic-gate 	int	val;
44*7c478bd9Sstevel@tonic-gate 	int	total = 0;
45*7c478bd9Sstevel@tonic-gate 	char	temp[MB_LEN_MAX];
46*7c478bd9Sstevel@tonic-gate 	int	i;
47*7c478bd9Sstevel@tonic-gate 
48*7c478bd9Sstevel@tonic-gate 	for (; ; ) {
49*7c478bd9Sstevel@tonic-gate 		if (*pwcs == 0) {
50*7c478bd9Sstevel@tonic-gate 			*s = '\0';
51*7c478bd9Sstevel@tonic-gate 			break;
52*7c478bd9Sstevel@tonic-gate 		}
53*7c478bd9Sstevel@tonic-gate 		if ((val = _curs_wctomb(temp, *pwcs++)) == -1)
54*7c478bd9Sstevel@tonic-gate 			return (val);
55*7c478bd9Sstevel@tonic-gate 		if ((total += val) > n) {
56*7c478bd9Sstevel@tonic-gate 			total -= val;
57*7c478bd9Sstevel@tonic-gate 			break;
58*7c478bd9Sstevel@tonic-gate 		}
59*7c478bd9Sstevel@tonic-gate 		for (i = 0; i < val; i++)
60*7c478bd9Sstevel@tonic-gate 			*s++ = temp[i];
61*7c478bd9Sstevel@tonic-gate 	}
62*7c478bd9Sstevel@tonic-gate 	return (total);
63*7c478bd9Sstevel@tonic-gate }
64