/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  check tty for standard handles in the iomode array
*
****************************************************************************/

#include "variety.h"
#include <unistd.h>
#include "rtdata.h"
//#include "liballoc.h"
#include "fileacc.h"
#include "handleio.h"
#include "iomode.h"

#define _INITIALIZED    _DYNAMIC

void __ChkTTYIOMode( int handle )
{
    if( handle < NUM_STD_STREAMS && !(__io_mode[handle] & _INITIALIZED) )
    {
        __io_mode[handle] |= _INITIALIZED;
        if( isatty( handle ) )
        {
            __io_mode[handle] |= _ISTTY;
        }
    }
}

// For F77 to call

unsigned __IOMode( int handle )
{
    __ChkTTYIOMode( handle );
    return( __GetIOMode( handle ) );
}