bin@primate.wisc.edu (Brain in Neutral) (05/03/90)
The BSD IPC documentation makes mention of the possibility of passing file descriptors between processes using IPC. How is this done? (Is this a dumb question?) - or - Which BSD programs (if any) do this? I could then perhaps grab the source from uunet and examine it. Paul DuBois dubois@primate.wisc.edu
brnstnd@stealth.acf.nyu.edu (05/04/90)
In article <2395@uakari.primate.wisc.edu> bin@primate.wisc.edu (Brain in Neutral) writes: > The BSD IPC documentation makes mention of the possibility of passing > file descriptors between processes using IPC. You set up a UNIX-domain socket connection, then use sendmsg() and recvmsg(). Don't pass any iovs, just a few descriptors. They'll be renumbered and placed into the receiving array; and they'll be open in the receiving process. > Which BSD programs (if any) do this? I could then perhaps grab the > source from uunet and examine it. I don't know of any offhand; it's not a commonly appreciated feature. I'm using it a bit in some upcoming programs. ---Dan