udp.h

dhcp-3.1.0.tar.gz。DHCP源代码

/*	$NetBSD: udp.h,v 1.6 1995/04/13 06:37:10 cgd Exp $	*/

/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
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 * modification, are permitted provided that the following conditions
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 *	This product includes software developed by the University of
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 *
 *	@(#)udp.h	8.1 (Berkeley) 6/10/93
 */

/*
 * Portions Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
 * Portions Copyright (c) 2000-2003 by Internet Software Consortium
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 *   Internet Systems Consortium, Inc.
 *   950 Charter Street
 *   Redwood City, CA 94063
 *   <[e-mail]>
 *   http://www.isc.org/
 */

/*
 * Udp protocol header.
 * Per RFC 768, September, 1981.
 */
struct udphdr {
	u_int16_t uh_sport;		/* source port */
	u_int16_t uh_dport;		/* destination port */
	u_int16_t uh_ulen;		/* udp length */
	u_int16_t uh_sum;		/* udp checksum */
};