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, by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29/*
30 * win_wchn.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
40static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/win_wchn.c 1.1 1995/06/14 15:26:05 ant Exp $";
41#endif
42#endif
43
44#include <private.h>
45
46int
47win_wchnstr(w, ccs, n)
48WINDOW *w;
49cchar_t *ccs;
50int n;
51{
52	int x, eol;
53	cchar_t *cp, null = { 0 };
54
55#ifdef M_CURSES_TRACE
56	__m_trace("win_wchnstr(%p, %p, %d)", w, ccs, n);
57#endif
58
59	eol = (n < 0 || w->_maxx < w->_curx + n) ? w->_maxx : w->_curx + n;
60
61        for (cp = w->_line[w->_cury], x = w->_curx; x < eol; ++ccs) {
62		*ccs = *cp;
63		ccs->_f = 1;
64
65		x = __m_cc_next(w, w->_cury, x);
66	}
67
68	/* For an unbounded buffer or a buffer with room remaining,
69	 * null terminate the buffer.
70	 */
71	if (n < 0 || eol < w->_curx + n)
72		*ccs = null;
73
74	return __m_return_code("win_wchnstr", OK);
75}
76