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Annotation of embedaddon/dhcp/includes/netinet/udp.h, revision 1.1

1.1     ! misho       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: };