[MUD-Dev] Re: Socket-Script: Socket-capabable script language and matching library

[Oliver Jowett <oliver#jowett,manawatu.planet.co.nz>]

On Tue, 4 Aug 1998, J C Lawrence wrote:

> Under Unix you're out of luck.  Under
> Unix file handles are private to processes and *CANNOT* be handed
> between processes (without nasty kernel/TCP/IP stack hacking> (ie file
> handle 0xXXXX under one process has no relevance to handle OxXXXX of
> another process).

Can't you pass descriptors between processes using sendmsg/recvmsg on an
AF_UNIX socket?

man recvmsg:

       Open file descriptors are now passed as ancillary data for
       AF_UNIX domain sockets, with cmsg_level set to  SOL_SOCKET
       and cmsg_type set to SCM_RIGHTS.

I haven't used it myself, though..

-O