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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1995-1998 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /* LINTLIBRARY */
28 
29 /*
30  * winnwstr.c
31  *
32  * XCurses Library
33  *
34  * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
35  *
36  */
37 
38 #if M_RCSID
39 #ifndef lint
40 static char rcsID[] =
41 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
42 "libxcurses/src/libc/xcurses/rcs/winnwstr.c 1.4 1998/05/27 19:20:06 "
43 "cbates Exp $";
44 #endif
45 #endif
46 
47 #include <private.h>
48 
49 int
winnwstr(WINDOW * w,wchar_t * wcs,int n)50 winnwstr(WINDOW *w, wchar_t *wcs, int n)
51 {
52 	int	i, y, x;
53 	int	j = 0;
54 	cchar_t	*cp;
55 
56 	if (n < 0)
57 		n = w->_maxx;
58 
59 	for (x = w->_curx; x < w->_maxx && 0 < n; n -= i) {
60 		cp = &w->_line[y = w->_cury][x];
61 
62 		/* Will entire character fit into buffer? */
63 		if (n < cp->_n)
64 			break;
65 
66 		/* Copy only the character portion. */
67 		for (i = 0; i < cp->_n; ++i) {
68 			*wcs++ = cp->_wc[i];
69 			j++;
70 		}
71 
72 		x = __m_cc_next(w, y, x);
73 	}
74 
75 	/* Enough room to null terminate the buffer? */
76 	if (0 < n)
77 		*wcs = '\0';
78 
79 	return (j);
80 }
81