109:/std/room/link.c (/std/room.c)
(public string) make_link(mixed to_room, object via_link)
/*
 * Function name: make_link
 * Description:   Find or make the return link. Called from other endpoint
 *                when linking a corridor between itself and this room.
 * Arguments:	  to_room:  File name of other endpoint
 *                via_link: Objectp to nearest cloned room in corridor.
 * Returns:       command used to move to other endpoint from this room.
 */
