Yet ANOTHER null pointer dereference problem (in "cat")

[Bill Shannon]

> Probably not until they run into the same situation that forced Berkeley
> to do something about it:  a machine which *cannot* support a readable
> location 0.  (Let there be no illusions that Berkeley fixed *NULL problems
> out of nobility or purity of heart; they fixed them because they had no
> choice if they wanted their code to run on the first Suns.)
> -- 
> 				Henry Spencer @ U of Toronto Zoology
> 				{allegra,ihnp4,linus,decvax}!utzoo!henry

Actually, Sun made the fixes and gave them back to Berkeley, to help
all the other poor slobs who started with 4.xBSD as a porting base.
Berkeley was very good about taking these fixes back.  If/when we get
a line into AT&T, we will give them the fixes too.  I hope they will
also be willing to take back such fixes.  I strongly urge both Berkeley
and AT&T to build their systems such that access to location zero causes
a fault, and then fix all the bugs that turn up.

					Bill Shannon