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Postings from April 2007
On Fri, Mar 31, 2006 at 11:43:31AM +0100, hv@crypt.org wrote:
> Adam Kennedy <cpan@ali.as> wrote:
> :And for those of you playing at home, the trick of mucking around with
> :the symbol table by replacing entire *things, instead of just your
> :$thing, or &thing, is a good way of getting past ALL SORTS of nasty
> :error checking.
> :
> :Like replacing the subroutine you are currently in, while you are
> :running it :)
>
> This gives a SEGV at least from v5.8.1 to v5.8.3:
> perl -e 'sub b { my $a; *b=\&c; c() } sub c { die } b()'
>
> (My work code still has a comment to that effect ...)
As of 5.8.4 it dies instead.
Nicholas Clark
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