69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
|
#include <stdlib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include <pcap.h>
|
||
|
|
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
pcap_t *fp;
|
||
|
|
char errbuf[PCAP_ERRBUF_SIZE];
|
||
|
|
u_char packet[100];
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* Check the validity of the command line */
|
||
|
|
if (argc != 2)
|
||
|
|
{
|
||
|
|
printf("usage: %s interface", argv[0]);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Open the adapter */
|
||
|
|
if ((fp = pcap_open_live(argv[1], // name of the device
|
||
|
|
65536, // portion of the packet to capture. It doesn't matter in this case
|
||
|
|
1, // promiscuous mode (nonzero means promiscuous)
|
||
|
|
1000, // read timeout
|
||
|
|
errbuf // error buffer
|
||
|
|
)) == NULL)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"\nUnable to open the adapter. %s is not supported by WinPcap\n", argv[1]);
|
||
|
|
return 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Supposing to be on ethernet, set mac destination to 1:1:1:1:1:1 */
|
||
|
|
packet[0]=1;
|
||
|
|
packet[1]=1;
|
||
|
|
packet[2]=1;
|
||
|
|
packet[3]=1;
|
||
|
|
packet[4]=1;
|
||
|
|
packet[5]=1;
|
||
|
|
|
||
|
|
/* set mac source to 2:2:2:2:2:2 */
|
||
|
|
packet[6]=2;
|
||
|
|
packet[7]=2;
|
||
|
|
packet[8]=2;
|
||
|
|
packet[9]=2;
|
||
|
|
packet[10]=2;
|
||
|
|
packet[11]=2;
|
||
|
|
|
||
|
|
/* Fill the rest of the packet */
|
||
|
|
for(i=12;i<100;i++)
|
||
|
|
{
|
||
|
|
packet[i]= (u_char)i;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Send down the packet */
|
||
|
|
if (pcap_sendpacket(fp, // Adapter
|
||
|
|
packet, // buffer with the packet
|
||
|
|
100 // size
|
||
|
|
) != 0)
|
||
|
|
{
|
||
|
|
fprintf(stderr,"\nError sending the packet: %s\n", pcap_geterr(fp));
|
||
|
|
return 3;
|
||
|
|
}
|
||
|
|
|
||
|
|
pcap_close(fp);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|