freebsd-src/contrib/tcpdump/print-eap.c

72 lines
2.0 KiB
C

/*
* Copyright (c) 2004 - Michael Richardson <mcr@xelerance.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code distributions
* retain the above copyright notice and this paragraph in its entirety, (2)
* distributions including binary code include the above copyright notice and
* this paragraph in its entirety in the documentation or other materials
* provided with the distribution, and (3) all advertising materials mentioning
* features or use of this software display the following acknowledgement:
* ``This product includes software developed by the University of California,
* Lawrence Berkeley Laboratory and its contributors.'' 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* Format and print bootp packets.
*/
#ifndef lint
static const char rcsid[] _U_ =
"@(#) $Header: /tcpdump/master/tcpdump/print-eap.c,v 1.3 2004/04/23 19:03:39 mcr Exp $";
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <tcpdump-stdinc.h>
#include <stdio.h>
#include <string.h>
#include "netdissect.h"
#include "addrtoname.h"
#include "extract.h"
#include "ether.h"
struct eap_packet_t {
unsigned char code;
unsigned char id;
unsigned char length[2];
unsigned char data[1];
};
/*
* Print bootp requests
*/
void
eap_print(netdissect_options *ndo,
register const u_char *cp,
u_int length _U_)
{
const struct eap_packet_t *eap;
eap = (const struct eap_packet_t *)cp;
ND_TCHECK(eap->data);
ND_PRINT((ndo, "EAP code=%u id=%u length=%u ",
eap->code, eap->id, (eap->length[0]<<8) + eap->length[1]));
if (!ndo->ndo_vflag)
return;
trunc:
;
}