/* * arpping .h */ #ifndef ARPPING_H #define ARPPING_H #include <netinet/if_ether.h> #include <net/if_arp.h> #include <net/if.h> #include <netinet/in.h> struct arpMsg { /* Ethernet header */ u_char h_dest[6]; /* destination ether addr */ u_char h_source[6]; /* source ether addr */ u_short h_proto; /* packet type ID field */ /* ARP packet */ uint16_t htype; /* hardware type (must be ARPHRD_ETHER) */ uint16_t ptype; /* protocol type (must be ETH_P_IP) */ uint8_t hlen; /* hardware address length (must be 6) */ uint8_t plen; /* protocol address length (must be 4) */ uint16_t operation; /* ARP opcode */ uint8_t sHaddr[6]; /* sender's hardware address */ uint8_t sInaddr[4]; /* sender's IP address */ uint8_t tHaddr[6]; /* target's hardware address */ uint8_t tInaddr[4]; /* target's IP address */ uint8_t pad[18]; /* pad for min. Ethernet payload (60 bytes) */ } ATTRIBUTE_PACKED; /* function prototypes */ int arpping(uint32_t yiaddr, uint32_t ip, uint8_t *arp, char *interface); #endif