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 * winchn.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[] = "$Header: /rd/src/libc/xcurses/rcs/winchn.c 1.1 "
41 "1995/06/13 20:54:33 ant Exp $";
42 #endif
43 #endif
44
45 #include <private.h>
46
47 int
winchnstr(WINDOW * w,chtype * chs,int n)48 winchnstr(WINDOW *w, chtype *chs, int n)
49 {
50 int x, eol;
51 cchar_t *cp;
52
53 eol = (n < 0 || w->_maxx < w->_curx + n) ? w->_maxx : w->_curx + n;
54
55 for (cp = w->_line[w->_cury], x = w->_curx; x < eol; ++x, ++chs) {
56 if ((*chs = __m_cc_chtype(&cp[x])) == (chtype) ERR)
57 return (ERR);
58 }
59
60 /*
61 * For an unbounded buffer or a buffer with room remaining,
62 * null terminate the buffer.
63 */
64 if (n < 0 || eol < w->_curx + n)
65 *chs = 0;
66
67 return (OK);
68 }
69