extern int (*request_handlers[])(connection_t*);
extern int send_id(connection_t*);
extern int send_challenge(connection_t*);
extern int send_chal_reply(connection_t*);
extern int send_metakey(connection_t*);
extern int (*request_handlers[])(connection_t*);
extern int send_id(connection_t*);
extern int send_challenge(connection_t*);
extern int send_chal_reply(connection_t*);
extern int send_metakey(connection_t*);