/*

 *  $Id: arp.c,v 1.7 2004/11/09 07:05:07 mike Exp $

 *

 *  libnet 1.1

 *  Build an ARP packet

 *

 *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>

 *  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 */

#if (HAVE_CONFIG_H)

#if ((_WIN32) && !(__CYGWIN__)) 

#include "../include/win32/config.h"

#else

#include "../include/config.h"

#endif

#endif

#include "./libnet_test.h"

int

main(int argc, char *argv[])

{

    int c;

    uint32_t i;

    libnet_t *l;

    libnet_ptag_t t;

    char *device = NULL;

    uint8_t *packet;

    uint32_t packet_s;

    char errbuf[LIBNET_ERRBUF_SIZE];

    printf("libnet 1.1 packet shaping: ARP[link -- autobuilding ethernet]\n"); 

    if (argc > 1)

    {

         device = argv[1];

    }

    l = libnet_init(

            LIBNET_LINK_ADV,                        /* injection type */

            device,                                 /* network interface */

            errbuf);                                /* errbuf */

    if (l == NULL)

    {

        fprintf(stderr, "%s", errbuf);

        exit(EXIT_FAILURE);

    }

	else

    i = libnet_get_ipaddr4(l);

    t = libnet_build_arp(

            ARPHRD_ETHER,                           /* hardware addr */

            ETHERTYPE_IP,                           /* protocol addr */

            6,                                      /* hardware addr size */

            4,                                      /* protocol addr size */

            ARPOP_REPLY,                            /* operation type */

            enet_src,                               /* sender hardware addr */

            (uint8_t *)&i,                         /* sender protocol addr */

            enet_dst,                               /* target hardware addr */

            (uint8_t *)&i,                         /* target protocol addr */

            NULL,                                   /* payload */

            0,                                      /* payload size */

            l,                                      /* libnet context */

            0);                                     /* libnet id */

    if (t == -1)

    {

        fprintf(stderr, "Can't build ARP header: %s\n", libnet_geterror(l));

        goto bad;

    }

    t = libnet_autobuild_ethernet(

            enet_dst,                               /* ethernet destination */

            ETHERTYPE_ARP,                          /* protocol type */

            l);                                     /* libnet handle */

    if (t == -1)

    {

        fprintf(stderr, "Can't build ethernet header: %s\n",

                libnet_geterror(l));

        goto bad;

    }

    if (libnet_adv_cull_packet(l, &packet, &packet_s) == -1)

    {

        fprintf(stderr, "%s", libnet_geterror(l));

    }

    else

    {

        fprintf(stderr, "packet size: %d\n", packet_s);

        libnet_adv_free_packet(l, packet);

    }

    c = libnet_write(l);

    if (c == -1)

    {

        fprintf(stderr, "Write error: %s\n", libnet_geterror(l));

        goto bad;

    }

    else

    {

        fprintf(stderr, "Wrote %d byte ARP packet from context \"%s\"; "

                "check the wire.\n", c, libnet_cq_getlabel(l));

    }

    libnet_destroy(l);

    return (EXIT_SUCCESS);

bad:

    libnet_destroy(l);

    return (EXIT_FAILURE);

}

/* EOF */