/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*	Copyright (c) 1988 AT&T	*/
/*	  All Rights Reserved  	*/

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#pragma weak _cfgetispeed = cfgetispeed

#include "lint.h"
#include <sys/types.h>
#include <sys/termios.h>

/*
 * returns input baud rate stored in c_cflag pointed by termios_p
 */

speed_t
cfgetispeed(const struct termios *termios_p)
{
	return (termios_p->c_cflag & CIBAUDEXT ?
	    ((termios_p->c_cflag & CIBAUD) >> 16) + (CIBAUD >> 16) + 1 :
	    (termios_p->c_cflag & CIBAUD) >> 16);
}