/*
 * 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 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

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

#include "compat.h"
#include <errno.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

off_t
lseek(int fd, off_t offset, int whence)
{
	int off, ret;

	if (whence < 0 || whence > 2) {
		errno = EINVAL;
		return (-1);
	}
	if (fd_get(fd) != -1) {
		off = getmodsize(offset, sizeof (struct compat_utmp),
		    sizeof (struct utmpx));
		if ((ret = _syscall(SYS_lseek, fd, off, whence)) != -1)
			ret = getmodsize(ret, sizeof (struct utmpx),
			    sizeof (struct compat_utmp));
		return (ret);
	} else {
		return (_syscall(SYS_lseek, fd, offset, whence));
	}
}