/*
 *
 * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
 * All rights reserved.
 *
 * This file is part of libtrace.
 *
 * This code has been developed by the University of Waikato WAND
 * research group. For further information please see http://www.wand.net.nz/
 *
 * libtrace is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * libtrace 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdio.h>
#include <arpa/inet.h>
#include "libpacketdump.h"

DLLEXPORT void decode(int link_type UNUSED, const char *packet, unsigned len)
{

    libtrace_ospf_as_external_lsa_v2_t *as =
        (libtrace_ospf_as_external_lsa_v2_t *)packet;

    if (len < 4)
        return;

    printf(" OSPF AS External LSA: Netmask %s ", inet_ntoa(as->netmask));

    if (len < 8) {
        printf("\n");
        return;
    }

    printf("Metric %u\n", trace_get_ospf_metric_from_as_external_lsa_v2(as));

    if (len < 12)
        return;

    printf(" OSPF AS External LSA: Forwarding %s ", inet_ntoa(as->forwarding));

    if (len < 16) {
        printf("\n");
        return;
    }

    printf("External Tag %u\n", ntohl(as->external_tag));
}
