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 * winchn.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[] = "$Header: /rd/src/libc/xcurses/rcs/winchn.c 1.1 "
43 "1995/06/13 20:54:33 ant Exp $";
44 #endif
45 #endif
46
47 #include <private.h>
48
49 int
winchnstr(WINDOW * w,chtype * chs,int n)50 winchnstr(WINDOW *w, chtype *chs, int n)
51 {
52 int x, eol;
53 cchar_t *cp;
54
55 eol = (n < 0 || w->_maxx < w->_curx + n) ? w->_maxx : w->_curx + n;
56
57 for (cp = w->_line[w->_cury], x = w->_curx; x < eol; ++x, ++chs) {
58 if ((*chs = __m_cc_chtype(&cp[x])) == (chtype) ERR)
59 return (ERR);
60 }
61
62 /*
63 * For an unbounded buffer or a buffer with room remaining,
64 * null terminate the buffer.
65 */
66 if (n < 0 || eol < w->_curx + n)
67 *chs = 0;
68
69 return (OK);
70 }
71