telnet_size();
telnet_size(telnet_term_width, telnet_term_height);
static void activate_option(struct Opt *o){    if (o->send == WILL && o->option == TELOPT_NAWS)	telnet_size();    if (o->send == WILL &&	(o->option == TELOPT_NEW_ENVIRON ||	 o->option == TELOPT_OLD_ENVIRON)) {	/*	 * We may only have one kind of ENVIRON going at a time.	 * This is a hack, but who cares.	 */	deactivate_option(o->option ==			  TELOPT_NEW_ENVIRON ? &o_oenv : &o_nenv);    }    option_side_effects(o, 1);}