xref: /titanic_52/usr/src/lib/libc/port/gen/xgetwidth.c (revision 4bff34e37def8a90f9194d81bc345c52ba20086a)
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 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*	Copyright (c) 1986 AT&T	*/
30 /*	  All Rights Reserved  	*/
31 
32 
33 /*	This module is created for NLS on Sep.03.86		*/
34 
35 /*
36  * _Xgetwidth calls _getwidth to get the values of environment variables
37  * CSWIDTH, SCRWIDTH and PCWIDTH, and checks the values to fit C process
38  * environment. This function is called only once in a program.
39  */
40 
41 /* #include "shlib.h" */
42 #include "synonyms.h"
43 #include <sys/types.h>
44 #include <euc.h>
45 #include <getwidth.h>
46 extern int _cswidth[];
47 
48 void
49 _xgetwidth(void)
50 {
51 	eucwidth_t	_eucwidth;
52 
53 	*_cswidth = 1; /* set to 1 when called */
54 	getwidth(&_eucwidth);
55 
56 	if (_eucwidth._eucw1 <= 4)
57 		_cswidth[1] = _eucwidth._eucw1;
58 	if (_eucwidth._eucw2 <= 4)
59 		_cswidth[2] = _eucwidth._eucw2;
60 	if (_eucwidth._eucw3 <= 4)
61 		_cswidth[3] = _eucwidth._eucw3;
62 }
63