UNIX domain sockets ?

[John Bruner]

Aside from issues of speed, UNIX domain sockets provide a capability
(no pun intended) that Internet domain sockets do not.  It is possible
to pass file descriptors between processes using UNIX domain datagrams.
-- 
  John Bruner (S-1 Project, Lawrence Livermore National Laboratory)
  MILNET: jdb at mordor [jdb at s1-c.ARPA]	(415) 422-0758
  UUCP: ...!ucbvax!dual!mordor!jdb 	...!seismo!mordor!jdb