/*
* 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
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R3 1.7 */
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
/*LINTLIBRARY*/
/*
* Returns 1 iff file is a tty
*/
#include <sys/termio.h>
extern int ioctl();
extern int errno;
int
isatty(f)
int f;
{
struct termio tty;
int err ;
err = errno;
if(ioctl(f, TCGETA, &tty) < 0)
{
errno = err;
return(0);
}
return(1);
}