registerClient $fd
	    }
	} elseif {[regexp -nocase {USER +([^ ]+) +([^ ]+) +([^ ]+) +(.+)$} \
		    $line -> user mode virtualhost realname]} \
	{
	    stripColon realname
	    clientUser $fd $user
	    clientVirtualHost $virtualhost
	    clientVirtualHost $fd $virtualhost
	    clientRealName $fd $realname
	    if {[clientNick $fd] ne {}} {
		registerClient $fd
	    }
	}
    } elseif {[clientState $fd] eq {REGISTERED}} {
	# The big regexps if/else. This are the commands supported currently.