#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/ip_icmp.h>
/*
*
*/
unsigned short check_sum(unsigned short *buffer, int size)
{
unsigned long cksum = 0;
while(size>1)
{
cksum += *buffer++;
size -= sizeof(unsigned short);
}
if(size)
{
cksum += *(unsigned char*)buffer;
}
cksum = (cksum>>16) + (cksum&0xffff);
cksum += (cksum>>16);
return (unsigned short)(~cksum);
}
int main(int argc, char** argv) {
     int fd = socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
     if(fd   == -1)
     {
         perror("");
         return -1;
     }
     struct icmp imp;
     bzero(&imp,sizeof(imp));
     imp.icmp_type = ICMP_ECHO;
     imp.icmp_code = 0;
     imp.icmp_id = getpid();
     imp.icmp_seq = 0;
     imp.icmp_cksum = 0;//check_sum(&imp,sizeof(imp));
     //
     struct sockaddr_in sock;
     bzero(&sock,sizeof(sock));
     sock.sin_family = AF_INET;
     sock.sin_addr.s_addr = inet_addr("192.168.1.102");
     int size = sendto(fd,&imp,sizeof(imp),0,&sock,sizeof(sock));
     if(size == -1)
     {
         perror("sendto");
          return -1;       
     }
     //
     char buffer[1024];
     int len = sizeof(sock);
    size =   recvfrom(fd,buffer,1024,0,&sock,&len);
     if(size == -1)
     {
         perror("recvfrom");
          return -1;       
     }
    //
    struct ip* p = buffer;
     struct icmp* temp = (struct icmp*)(buffer+20);
     printf("%d\n",temp->icmp_type);
     printf("%d\n",temp->icmp_code);
     //
     return (EXIT_SUCCESS);
}
/*
* File:    main.c
* Author: root
*
* Created on December 2, 2009, 8:14 PM
*/
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <string.h>
#include <sys/types.h>


#include <errno.h>
#include <sys/socket.h>
#include <netinet/if_ether.h>
#include <arpa/inet.h>
#include <netpacket/packet.h>
/*
*
*/
struct rawarp {
     struct ethhdr eh;
     struct ether_arp msg;
} __attribute__((packet));
//
int main(int argc, char** argv) {
     int fd = socket(AF_PACKET,SOCK_RAW,htons(ETH_P_ARP));
     //
     char source[6]={0x11,0x22,0x33,0x44,0x55,0x66};
     char target[6]={0x00, 0x0c, 0x29, 0xbf, 0x28, 0x03};
     int ip_s = inet_addr("192.168.1.1");
     int ip_t =inet_addr("192.168.1.104");
     //
     struct rawarp request;
    memcpy( request.eh.h_dest,target,6);
    memcpy( request.eh.h_source,source,6) ;
     request.eh.h_proto= htons(ETH_P_ARP);
     //
     request.msg.arp_hrd = htons(1);
     request.msg.arp_pro = htons(ETH_P_IP);
     request.msg.arp_hln = 6;
     request.msg.arp_pln = 4;
     request.msg.arp_op = htons(ARPOP_REQUEST);
     //
    memcpy(request.msg.arp_sha, source, 6);
     memcpy(request.msg.arp_spa, &ip_s, 4);
     memset(request.msg.arp_tha, target, 6);
     memcpy(request.msg.arp_tpa, &ip_t, 4);
//
     //
     struct sockaddr_ll sl;
     bzero(&sl,sizeof(sl));
     sl.sll_family = AF_PACKET;
     sl.sll_ifindex = 2;
     while(1)
     {
         sleep(1);
         sendto(fd,&request,sizeof(request),0,&sl,sizeof(sl));
     }
     return (EXIT_SUCCESS);
}