Re: Integer overflows in memchr

[Po Lu]

Paul Eggert <eggert@cs.ucla.edu> writes:

> On 6/27/24 02:37, Po Lu wrote:
>
>> Btw, doesn't this also mean that lib/strnlen.c (in Emacs, at least) is
>> incorrect?
>
> Thanks for pointing that out. I installed the attached into Gnulib and
> propagated it into Emacs master. Although I don't know of any
> practical, supported platform where this matters, it's better to be
> safer.

I think there should be a trivial test for a functional strnlen in
strnlen.m4, since it would be terrible to duplicate what ought to be the
responsibility of Gnulib in Emacs's configure.ac.