Re: Empty bootargs ....

[Andrew Cagney <cagney%tpgi.com.au@localhost>]

Excerpts from netbsd: 19-Dec-96 Re: Empty bootargs .... 
ws%kurt.tools.de@localhost (858*)

> >       for (cp = bootpath + strlen(bootpath) + 1; --cp >= bootpath;) {

> Hmm, arguably this isn't unsafe, as the boot code guarrantees that the
> arguments are not empty.

Worse than that, the change above doesn't fix the problem any way :-(

> > o   The size argument (r7?) should probably be passed into
> >     the function machdep.c:initppc().  That function in turn
> >     doing some sort of sanity check.

> Again, the boot code guarrantees that the argument string is indeed one 
> string,
> so this isn't necessary either.

I prefer a more conservative aproach.  Don't trust and hence check every
thing at every stage.

                enjoy,
                        Andrew