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/* packet-ntp.h
* Definitions for packet disassembly structures and routines
*
* $Id: packet-ntp.h,v 1.1 1999/10/14 05:10:30 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
* Joerg Mayer <jmayer@telemation.de>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* This is from yahoolib.h from gtkyahoo */
#ifndef PACKET_NTP_H
#define PACKET_NTP_H
/* packet structure based on one in xntp package */
/* to satisfy it's requirements, even though the code isn't copied
directly: */
/***********************************************************************
* *
* Copyright (c) David L. Mills 1992, 1993, 1994, 1995, 1996 *
* *
* Permission to use, copy, modify, and distribute this software and *
* its documentation for any purpose and without fee is hereby *
* granted, provided that the above copyright notice appears in all *
* copies and that both the copyright notice and this permission *
* notice appear in supporting documentation, and that the name *
* University of Delaware not be used in advertising or publicity *
* pertaining to distribution of the software without specific, *
* written prior permission. The University of Delaware makes no *
* representations about the suitability this software for any *
* purpose. It is provided "as is" without express or implied *
* warranty. *
**********************************************************************/
struct ntp_packet
{
unsigned char flags[1]; /* leap indicator, version and mode */ /* 0 */
unsigned char stratum[1]; /* peer's stratum */
unsigned char ppoll[1]; /* the peer polling interval */
char precision[1]; /* peer clock precision */
unsigned char rootdelay[4]; /* distance to primary clock */ /* 4 */
unsigned char rootdispersion[4]; /* clock dispersion */ /* 8 */
unsigned char refid[4]; /* reference clock ID */ /* 12-15 */
unsigned char reftime[8]; /* time peer clock was last updated */ /* 16-23 */
unsigned char org[8]; /* originate time stamp */ /* 24 */
unsigned char rec[8]; /* receive time stamp */ /* 32 */
unsigned char xmt[8]; /* transmit time stamp */
unsigned char keyid[4]; /* key identification */ /* 48 */
unsigned char mac[16]; /* message-authentication code */ /* 52 - 60 */
/* can also be 16, if MD5 instead of DES */
};
#endif
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