There was a university project (I forget the name, but I think it
began with a P, and it was done sometime around 1987-89) which
modified libc to save away file descriptor state; you could then dump
the image and have enough to restore later. (At least I think that was
enough.) At the time, it meant relinking the program -- but these
days, anything that matters has shared libraries, which simplifies the
effort. Perhaps someone else will recall the name of the project I'm
thinking of.
			_Mark_ <eichin@kitten.gen.ma.us>
			The Herd of Kittens