| /* |
| * Copyright (c) 1983, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #if defined(LIBC_SCCS) && !defined(lint) |
| static char sccsid[] = "@(#)inet_makeaddr.c 8.1 (Berkeley) 6/4/93"; |
| #endif /* LIBC_SCCS and not lint */ |
| |
| #include <sys/param.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| |
| /* |
| * Formulate an Internet address from network + host. Used in |
| * building addresses stored in the ifnet structure. |
| */ |
| struct in_addr |
| __inet_makeaddr (in_addr_t net, in_addr_t host) |
| { |
| struct in_addr in; |
| |
| if (net < 128) |
| in.s_addr = (net << IN_CLASSA_NSHIFT) | (host & IN_CLASSA_HOST); |
| else if (net < 65536) |
| in.s_addr = (net << IN_CLASSB_NSHIFT) | (host & IN_CLASSB_HOST); |
| else if (net < 16777216L) |
| in.s_addr = (net << IN_CLASSC_NSHIFT) | (host & IN_CLASSC_HOST); |
| else |
| in.s_addr = net | host; |
| in.s_addr = htonl(in.s_addr); |
| return in; |
| } |
| libc_hidden_def (__inet_makeaddr) |
| weak_alias (__inet_makeaddr, inet_makeaddr) |