1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2001 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /*
28*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
29*0Sstevel@tonic-gate * The Regents of the University of California
30*0Sstevel@tonic-gate * All Rights Reserved
31*0Sstevel@tonic-gate *
32*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
33*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
34*0Sstevel@tonic-gate * contributors.
35*0Sstevel@tonic-gate */
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
38*0Sstevel@tonic-gate /* from UCB 4.4 85/06/02 */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #include <sys/types.h>
41*0Sstevel@tonic-gate #include <netinet/in.h>
42*0Sstevel@tonic-gate
43*0Sstevel@tonic-gate /*
44*0Sstevel@tonic-gate * Formulate an Internet address from network + host. Used in
45*0Sstevel@tonic-gate * building addresses stored in the ifnet structure.
46*0Sstevel@tonic-gate */
47*0Sstevel@tonic-gate struct in_addr
inet_makeaddr(net,host)48*0Sstevel@tonic-gate inet_makeaddr(net, host)
49*0Sstevel@tonic-gate int net, host;
50*0Sstevel@tonic-gate {
51*0Sstevel@tonic-gate ulong_t addr;
52*0Sstevel@tonic-gate struct in_addr inaddr;
53*0Sstevel@tonic-gate
54*0Sstevel@tonic-gate if (net < 128)
55*0Sstevel@tonic-gate addr = (net << IN_CLASSA_NSHIFT) | (host & IN_CLASSA_HOST);
56*0Sstevel@tonic-gate else if (net < 65536)
57*0Sstevel@tonic-gate addr = (net << IN_CLASSB_NSHIFT) | (host & IN_CLASSB_HOST);
58*0Sstevel@tonic-gate else
59*0Sstevel@tonic-gate addr = (net << IN_CLASSC_NSHIFT) | (host & IN_CLASSC_HOST);
60*0Sstevel@tonic-gate inaddr.s_addr = htonl(addr);
61*0Sstevel@tonic-gate return (inaddr);
62*0Sstevel@tonic-gate }
63