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 #pragma ident "%Z%%M% %I% %E% SMI"
28
29 /* LINTLIBRARY */
30
31 /*
32 * win_wchn.c
33 *
34 * XCurses Library
35 *
36 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved.
37 *
38 */
39
40 #if M_RCSID
41 #ifndef lint
42 static char rcsID[] =
43 "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
44 "libxcurses/src/libc/xcurses/rcs/win_wchn.c 1.2 1998/05/22 17:57:05 "
45 "cbates Exp $";
46 #endif
47 #endif
48
49 #include <private.h>
50
51 int
win_wchnstr(WINDOW * w,cchar_t * ccs,int n)52 win_wchnstr(WINDOW *w, cchar_t *ccs, int n)
53 {
54 int x, eol;
55 cchar_t null = { 0 };
56
57 eol = (n < 0 || w->_maxx < w->_curx + n) ? w->_maxx : w->_curx + n;
58
59 for (x = w->_curx; x < eol; ++ccs) {
60 *ccs = w->_line[w->_cury][x];
61 ccs->_f = 1;
62
63 x = __m_cc_next(w, w->_cury, x);
64 }
65
66 /*
67 * For an unbounded buffer or a buffer with room remaining,
68 * null terminate the buffer.
69 */
70 if (n < 0 || eol < w->_curx + n) {
71 *ccs = null;
72 }
73
74 return (OK);
75 }
76