void net_dead( void );
If an interactive object (i.e. a user object) suddenly loses its connection (i.e. it goes "net dead"), then the driver calls this function on that object giving it a chance to clean up, notify its environment etc. Be aware that functions that depend on the object being interactive will not work as expected.
Beek @ZorkMUD, Lima Bean, IdeaExchange, TMI-2, and elsewhere