void *CtdlGetUserData(unsigned long requested_sym);
void CtdlAllocUserData(unsigned long requested_sym, size_t num_bytes);
void CtdlReallocUserData(unsigned long requested_sym, size_t num_bytes);
-int CtdlGetDynamicSymbol(void);
void do_command_loop(void);
void begin_session(struct CitContext *con);
void citproto_begin_session(void);