/*
* 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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#include "lint.h"
#include <sys/types.h>
#include <sys/systeminfo.h>
#include <stdlib.h>
long
gethostid(void)
{
char name[HW_HOSTID_LEN], *end;
unsigned long hostid;
/*
* HW_INVALID_HOSTID must be cast to an int to ensure that it's sign
* extended to 64 bits in 64-bit builds.
*/
if (sysinfo(SI_HW_SERIAL, name, sizeof (name)) == -1)
return ((int)HW_INVALID_HOSTID);
hostid = strtoul(name, &end, 10);
if (end == name)
return ((int)HW_INVALID_HOSTID);
return ((long)hostid);
}