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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 #include <stdio.h>
     27 #include <unistd.h>
     28 #include <stdlib.h>
     29 #include <sys/systeminfo.h>
     30 
     31 int
     32 main(void)
     33 {
     34 	long hostval;
     35 
     36 	if ((unsigned int)(hostval = gethostid()) == HW_INVALID_HOSTID) {
     37 		(void) fprintf(stderr, "bad hostid format\n");
     38 		exit(1);
     39 	}
     40 	(void) printf("%08lx\n", (unsigned long)hostval);
     41 	return (0);
     42 }
     43