xref: /titanic_50/usr/src/lib/libc/port/gen/xgetwidth.c (revision 7257d1b4d25bfac0c802847390e98a464fd787ac)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*7257d1b4Sraf  * Common Development and Distribution License (the "License").
6*7257d1b4Sraf  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21*7257d1b4Sraf 
227c478bd9Sstevel@tonic-gate /*
23*7257d1b4Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1986 AT&T	*/
287c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
297c478bd9Sstevel@tonic-gate 
30*7257d1b4Sraf #pragma ident	"%Z%%M%	%I%	%E% SMI"
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate /*
337c478bd9Sstevel@tonic-gate  * _Xgetwidth calls _getwidth to get the values of environment variables
347c478bd9Sstevel@tonic-gate  * CSWIDTH, SCRWIDTH and PCWIDTH, and checks the values to fit C process
357c478bd9Sstevel@tonic-gate  * environment. This function is called only once in a program.
367c478bd9Sstevel@tonic-gate  */
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate /* #include "shlib.h" */
39*7257d1b4Sraf #include "lint.h"
407c478bd9Sstevel@tonic-gate #include <sys/types.h>
417c478bd9Sstevel@tonic-gate #include <euc.h>
427c478bd9Sstevel@tonic-gate #include <getwidth.h>
437c478bd9Sstevel@tonic-gate extern int _cswidth[];
447c478bd9Sstevel@tonic-gate 
457c478bd9Sstevel@tonic-gate void
_xgetwidth(void)467c478bd9Sstevel@tonic-gate _xgetwidth(void)
477c478bd9Sstevel@tonic-gate {
487c478bd9Sstevel@tonic-gate 	eucwidth_t	_eucwidth;
497c478bd9Sstevel@tonic-gate 
507c478bd9Sstevel@tonic-gate 	*_cswidth = 1; /* set to 1 when called */
517c478bd9Sstevel@tonic-gate 	getwidth(&_eucwidth);
527c478bd9Sstevel@tonic-gate 
537c478bd9Sstevel@tonic-gate 	if (_eucwidth._eucw1 <= 4)
547c478bd9Sstevel@tonic-gate 		_cswidth[1] = _eucwidth._eucw1;
557c478bd9Sstevel@tonic-gate 	if (_eucwidth._eucw2 <= 4)
567c478bd9Sstevel@tonic-gate 		_cswidth[2] = _eucwidth._eucw2;
577c478bd9Sstevel@tonic-gate 	if (_eucwidth._eucw3 <= 4)
587c478bd9Sstevel@tonic-gate 		_cswidth[3] = _eucwidth._eucw3;
597c478bd9Sstevel@tonic-gate }
60