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/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
#pragma weak tcgetsid = _tcgetsid
#include "synonyms.h"
#include <sys/termios.h>
#include <sys/types.h>
#include <errno.h>
#include <unistd.h>
pid_t
tcgetsid(int fd)
{
pid_t ttysid, mysid;
if ((ioctl(fd, TIOCGSID, &ttysid)) < 0 ||
(mysid = getsid(0)) < 0)
return (-1);
if (mysid != ttysid) {
errno = ENOTTY;
return (-1);
}
return (mysid);
}
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