Arachnid

typedef struct {	dhtid sender;	dhtid dest;	char *protocol	int len;	char *body;} message;typedef void (*message_handler) (message *m);void dhtd_bind(char *protocol, message_handler *handler);void dhtd_send_to(ipaddr_t address, short port, message *msg);void dhtd_send(message *msg, int num);