xref: /titanic_44/usr/src/lib/libcurses/screen/wgetwch.c (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
1 *7c478bd9Sstevel@tonic-gate /*
2 *7c478bd9Sstevel@tonic-gate  * CDDL HEADER START
3 *7c478bd9Sstevel@tonic-gate  *
4 *7c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5 *7c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6 *7c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7 *7c478bd9Sstevel@tonic-gate  * with the License.
8 *7c478bd9Sstevel@tonic-gate  *
9 *7c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 *7c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11 *7c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
12 *7c478bd9Sstevel@tonic-gate  * and limitations under the License.
13 *7c478bd9Sstevel@tonic-gate  *
14 *7c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15 *7c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 *7c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17 *7c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18 *7c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19 *7c478bd9Sstevel@tonic-gate  *
20 *7c478bd9Sstevel@tonic-gate  * CDDL HEADER END
21 *7c478bd9Sstevel@tonic-gate  */
22 *7c478bd9Sstevel@tonic-gate /*  Copyright (c) 1988 AT&T */
23 *7c478bd9Sstevel@tonic-gate /*    All Rights Reserved   */
24 *7c478bd9Sstevel@tonic-gate 
25 *7c478bd9Sstevel@tonic-gate 
26 *7c478bd9Sstevel@tonic-gate /*
27 *7c478bd9Sstevel@tonic-gate  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28 *7c478bd9Sstevel@tonic-gate  *      All rights reserved.
29 *7c478bd9Sstevel@tonic-gate  */
30 *7c478bd9Sstevel@tonic-gate 
31 *7c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32 *7c478bd9Sstevel@tonic-gate 
33 *7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/
34 *7c478bd9Sstevel@tonic-gate 
35 *7c478bd9Sstevel@tonic-gate #include	<sys/types.h>
36 *7c478bd9Sstevel@tonic-gate #include	"curses_inc.h"
37 *7c478bd9Sstevel@tonic-gate 
38 *7c478bd9Sstevel@tonic-gate /*
39 *7c478bd9Sstevel@tonic-gate  *	Get a process code
40 *7c478bd9Sstevel@tonic-gate  */
41 *7c478bd9Sstevel@tonic-gate 
42 *7c478bd9Sstevel@tonic-gate int
wgetwch(WINDOW * win)43 *7c478bd9Sstevel@tonic-gate wgetwch(WINDOW *win)
44 *7c478bd9Sstevel@tonic-gate {
45 *7c478bd9Sstevel@tonic-gate 	int	c, n, type, width;
46 *7c478bd9Sstevel@tonic-gate 	char	buf[CSMAX];
47 *7c478bd9Sstevel@tonic-gate 	wchar_t	wchar;
48 *7c478bd9Sstevel@tonic-gate 
49 *7c478bd9Sstevel@tonic-gate 	/* get the first byte */
50 *7c478bd9Sstevel@tonic-gate 	if ((c = wgetch(win)) == ERR)
51 *7c478bd9Sstevel@tonic-gate 		return (ERR);
52 *7c478bd9Sstevel@tonic-gate 
53 *7c478bd9Sstevel@tonic-gate 	if (c >= KEY_MIN)
54 *7c478bd9Sstevel@tonic-gate 		return (c);
55 *7c478bd9Sstevel@tonic-gate 
56 *7c478bd9Sstevel@tonic-gate 	type = TYPE(c);
57 *7c478bd9Sstevel@tonic-gate 	width = cswidth[type] - ((type == 1 || type == 2) ? 0 : 1);
58 *7c478bd9Sstevel@tonic-gate 	/* LINTED */
59 *7c478bd9Sstevel@tonic-gate 	buf[0] = (char)c;
60 *7c478bd9Sstevel@tonic-gate 	for (n = 1; n <= width; ++n) {
61 *7c478bd9Sstevel@tonic-gate 		if ((c = wgetch(win)) == ERR)
62 *7c478bd9Sstevel@tonic-gate 			return (ERR);
63 *7c478bd9Sstevel@tonic-gate 		if (TYPE(c) != 0)
64 *7c478bd9Sstevel@tonic-gate 			return (ERR);
65 *7c478bd9Sstevel@tonic-gate 		/* LINTED */
66 *7c478bd9Sstevel@tonic-gate 		buf[n] = (char)c;
67 *7c478bd9Sstevel@tonic-gate 	}
68 *7c478bd9Sstevel@tonic-gate 
69 *7c478bd9Sstevel@tonic-gate 	/* translate it to process code */
70 *7c478bd9Sstevel@tonic-gate 	if ((_curs_mbtowc(&wchar, buf, n)) < 0)
71 *7c478bd9Sstevel@tonic-gate 		return (ERR);
72 *7c478bd9Sstevel@tonic-gate 	return ((int)wchar);
73 *7c478bd9Sstevel@tonic-gate 	}
74