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dhcp 4.1 r7

    1: /*	$NetBSD: udp.h,v 1.6 1995/04/13 06:37:10 cgd Exp $	*/
    2: 
    3: /*
    4:  * Copyright (c) 1982, 1986, 1993
    5:  *	The Regents of the University of California.  All rights reserved.
    6:  *
    7:  * Redistribution and use in source and binary forms, with or without
    8:  * modification, are permitted provided that the following conditions
    9:  * are met:
   10:  * 1. Redistributions of source code must retain the above copyright
   11:  *    notice, this list of conditions and the following disclaimer.
   12:  * 2. Redistributions in binary form must reproduce the above copyright
   13:  *    notice, this list of conditions and the following disclaimer in the
   14:  *    documentation and/or other materials provided with the distribution.
   15:  * 3. All advertising materials mentioning features or use of this software
   16:  *    must display the following acknowledgement:
   17:  *	This product includes software developed by the University of
   18:  *	California, Berkeley and its contributors.
   19:  * 4. Neither the name of the University nor the names of its contributors
   20:  *    may be used to endorse or promote products derived from this software
   21:  *    without specific prior written permission.
   22:  *
   23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   33:  * SUCH DAMAGE.
   34:  *
   35:  *	@(#)udp.h	8.1 (Berkeley) 6/10/93
   36:  */
   37: 
   38: /*
   39:  * Portions Copyright (c) 2004,2009
   40:  * by Internet Systems Consortium, Inc. ("ISC")
   41:  * Portions Copyright (c) 2000-2003 by Internet Software Consortium
   42:  *
   43:  * Permission to use, copy, modify, and distribute this software for any
   44:  * purpose with or without fee is hereby granted, provided that the above
   45:  * copyright notice and this permission notice appear in all copies.
   46:  *
   47:  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
   48:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   49:  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
   50:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   51:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   52:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
   53:  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   54:  *
   55:  *   Internet Systems Consortium, Inc.
   56:  *   950 Charter Street
   57:  *   Redwood City, CA 94063
   58:  *   <info@isc.org>
   59:  *   https://www.isc.org/
   60:  */
   61: 
   62: /*
   63:  * Udp protocol header.
   64:  * Per RFC 768, September, 1981.
   65:  */
   66: struct udphdr {
   67: 	u_int16_t uh_sport;		/* source port */
   68: 	u_int16_t uh_dport;		/* destination port */
   69: 	u_int16_t uh_ulen;		/* udp length */
   70: 	u_int16_t uh_sum;		/* udp checksum */
   71: };