YAPC::Europe 2013 in Kiev

YAPC::Europe 2013 “Future Perl”

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Exploit a PerlIO bug to run your own code at the beginning of another program

By Lukas Mai (‎mauke‎) from pound-perl.pm
Lightning talk
Target audience: Any
Language: English
Tags: code_injection hack

Sometimes you want to run your own initialization code before a program starts running (or even compiling). Real-world example: BEGIN { $DB::deep = 1000; }

There is a way to do this without modifying the program or installing new modules (it involves exploiting a code injection bug in PerlIO). This talk explains how it all works.