1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * Copyright (c) 1997-2001 by Sun Microsystems, Inc. 3*0Sstevel@tonic-gate * All rights reserved. 4*0Sstevel@tonic-gate */ 5*0Sstevel@tonic-gate 6*0Sstevel@tonic-gate /* 7*0Sstevel@tonic-gate * Copyright (c) 1983, 1993 8*0Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 9*0Sstevel@tonic-gate * 10*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 11*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 12*0Sstevel@tonic-gate * are met: 13*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 14*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 15*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 17*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 18*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 19*0Sstevel@tonic-gate * must display the following acknowledgement: 20*0Sstevel@tonic-gate * This product includes software developed by the University of 21*0Sstevel@tonic-gate * California, Berkeley and its contributors. 22*0Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 23*0Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 24*0Sstevel@tonic-gate * without specific prior written permission. 25*0Sstevel@tonic-gate * 26*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36*0Sstevel@tonic-gate * SUCH DAMAGE. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 42*0Sstevel@tonic-gate static const char sccsid[] = "@(#)inet_makeaddr.c 8.1 (Berkeley) 6/4/93"; 43*0Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #include "port_before.h" 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate #include <sys/param.h> 48*0Sstevel@tonic-gate #include <netinet/in.h> 49*0Sstevel@tonic-gate #include <arpa/inet.h> 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate #include "port_after.h" 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate /* 54*0Sstevel@tonic-gate * Formulate an Internet address from network + host. Used in 55*0Sstevel@tonic-gate * building addresses stored in the ifnet structure. 56*0Sstevel@tonic-gate */ 57*0Sstevel@tonic-gate struct in_addr 58*0Sstevel@tonic-gate inet_makeaddr(net, host) 59*0Sstevel@tonic-gate #ifdef ORIGINAL_ISC_CODE 60*0Sstevel@tonic-gate u_long net, host; 61*0Sstevel@tonic-gate #else 62*0Sstevel@tonic-gate in_addr_t net, host; 63*0Sstevel@tonic-gate #endif 64*0Sstevel@tonic-gate { 65*0Sstevel@tonic-gate #ifdef ORIGINAL_ISC_CODE 66*0Sstevel@tonic-gate u_long addr; 67*0Sstevel@tonic-gate #else 68*0Sstevel@tonic-gate in_addr_t addr; 69*0Sstevel@tonic-gate struct in_addr inaddr; 70*0Sstevel@tonic-gate #endif 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate if (net < 128) 73*0Sstevel@tonic-gate addr = (net << IN_CLASSA_NSHIFT) | (host & IN_CLASSA_HOST); 74*0Sstevel@tonic-gate else if (net < 65536) 75*0Sstevel@tonic-gate addr = (net << IN_CLASSB_NSHIFT) | (host & IN_CLASSB_HOST); 76*0Sstevel@tonic-gate else if (net < 16777216L) 77*0Sstevel@tonic-gate addr = (net << IN_CLASSC_NSHIFT) | (host & IN_CLASSC_HOST); 78*0Sstevel@tonic-gate else 79*0Sstevel@tonic-gate addr = net | host; 80*0Sstevel@tonic-gate #ifdef ORIGINAL_ISC_CODE 81*0Sstevel@tonic-gate addr = htonl(addr); 82*0Sstevel@tonic-gate return (*(struct in_addr *)&addr); 83*0Sstevel@tonic-gate #else 84*0Sstevel@tonic-gate inaddr.s_addr = htonl(addr); 85*0Sstevel@tonic-gate return (inaddr); 86*0Sstevel@tonic-gate #endif 87*0Sstevel@tonic-gate } 88