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#define int_ntoa(x) inet_ntoa(*((struct in_addr *)&(x)))
#define ETH_ALEN 6
#define PCAP_FILTER "arp or tcp or icmp or udp"
struct Ether_header
{
uint8_t ether_dhost[ETH_ALEN];
uint8_t ether_shost[ETH_ALEN];
uint16_t ether_type;
};
struct Arphdr
{
unsigned short int ar_hrd; /* Format of hardware address. */
unsigned short int ar_pro; /* Format of protocol address. */
unsigned char ar_hln; /* Length of hardware address. */
unsigned char ar_pln; /* Length of protocol address. */
unsigned short int ar_op; /* ARP opcode (command). */
/* Ethernet looks like this : This bit is variable sized
however... */
unsigned char ar_sha[ETH_ALEN]; /* Sender hardware address. */
unsigned char ar_sip[4]; /* Sender IP address. */
unsigned char ar_tha[ETH_ALEN]; /* Target hardware address. */
unsigned char ar_tip[4]; /* Target IP address. */
};
void *do_snarf (void *);
void undo_snarf ();
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