[issue1006] digest is down; suggestions welcome

Jost Tobias Springenberg jspringe at uos.de
Wed May 14 13:53:11 PDT 2008

On Wed, 14 May 2008 16:06:19 -0400 (EDT)
"Justin C. Sherrill" <justin at shiningsilence.com> wrote:

> On Wed, May 14, 2008 2:49 pm, Dionysus Blazakis wrote:
> > It seems there was an off-by-one error in the strspn code in our libc.
> >  The buffer was a byte too small and resulted in overwriting the saved
> > ebx which was the offset to the GOT -- but only if strspn was used
> > with a \xff in the second string.
> >
> > I have a patch here:
> > http://dblaz.beevomit.org/dfly/strspn.patch
> >
> > I've verified it fixes the PHP problem.  Also, I tested it against a
> > small program that called strspn with a \xff in the second string and
> > verified that ebx was correctly restored (unlike prior to the patch).
> This fixed it - the Digest is back up, thanks to Dave.
> This would be worth bringing back to 1.12.2.

It definitely would be,
just as a side-note, I am curious if that also may have something to do with Johannes Problem
that he mentioned in the gcc Fortran base thread and here: 
If that's pure nonsense ignore it but i remember him having problems with strspn !?

Jost Tobias Springenberg <jspringe at uos.de>

More information about the Bugs mailing list