8 #include <netinet/if_ether.h>
9 #include <net/if_arp.h>
11 #include <netinet/in.h>
15 u_char h_dest[6]; /* destination ether addr */
16 u_char h_source[6]; /* source ether addr */
17 u_short h_proto; /* packet type ID field */
20 uint16_t htype; /* hardware type (must be ARPHRD_ETHER) */
21 uint16_t ptype; /* protocol type (must be ETH_P_IP) */
22 uint8_t hlen; /* hardware address length (must be 6) */
23 uint8_t plen; /* protocol address length (must be 4) */
24 uint16_t operation; /* ARP opcode */
25 uint8_t sHaddr[6]; /* sender's hardware address */
26 uint8_t sInaddr[4]; /* sender's IP address */
27 uint8_t tHaddr[6]; /* target's hardware address */
28 uint8_t tInaddr[4]; /* target's IP address */
29 uint8_t pad[18]; /* pad for min. Ethernet payload (60 bytes) */
32 /* function prototypes */
33 int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface);