void packet_set_connection(int, int);
void packet_set_nonblocking(void);
int packet_get_connection_in(void);
int packet_get_connection_out(void);
void packet_close(void);
void packet_set_encryption_key(const u_char *, u_int, int);
void packet_set_connection(int, int);
void packet_set_nonblocking(void);
int packet_get_connection_in(void);
int packet_get_connection_out(void);
void packet_close(void);
void packet_set_encryption_key(const u_char *, u_int, int);