extern bool req_key_h(struct connection_t *, char *);
extern bool ans_key_h(struct connection_t *, char *);
extern bool tcppacket_h(struct connection_t *, char *);
extern bool req_key_h(struct connection_t *, char *);
extern bool ans_key_h(struct connection_t *, char *);
extern bool tcppacket_h(struct connection_t *, char *);