Job Control Wishlist

[mike%brl-vgr at sri-unix.UUCP]

From:  Mike Muuss <mike at brl-vgr>

Marshal -
	As far as I can tell so far, 4.2 does not have your wished-for
dup3() system call, but it *does* have the ability to "hand off"
a file descriptor to another process, using a special PF_UNIX "messsage".
Using that capability and some library routines to handle interpreting
a special signal, you actually COULD build a dup3() facility
which would work as long as the target of the dup3 was willing to cooperate.
Neat, huh?
	-Mike