wctomb.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include <widec.h>
#include <ctype.h>
#include "curses_wchar.h"
int
_curs_wctomb(char *s, wchar_t wchar)
{
char *olds = s;
int size, index;
unsigned char d;
if (!s)
return (0);
if (wchar <= 0177 || (wchar <= 0377 && (iscntrl((int)wchar) != 0))) {
/* LINTED */
*s++ = (char)wchar;
return (1);
}
switch (wchar & EUCMASK) {
case P11:
size = eucw1;
break;
case P01:
/* LINTED */
*s++ = (char)SS2;
size = eucw2;
break;
case P10:
/* LINTED */
*s++ = (char)SS3;
size = eucw3;
break;
default:
return (-1);
}
if ((index = size) <= 0)
return (-1);
while (index--) {
/* LINTED */
d = wchar | 0200;
wchar >>= 7;
if (iscntrl(d))
return (-1);
s[index] = d;
}
/* LINTED */
return ((int)(s - olds) + size);
}