Even with the double fork and chroot there're still a lot of potential security holes which are open, for example consider the following two fairly common attacks for a couple off the top of my head:

of course taint mode is required, as well as sanitizing the input, limiting it to a safe subset of expressions. And it seems that I am required to advise the usage of strict and warnings also... but that's not the point of the thread, is it?

--shmem 

Happy Year of the Golden Pig!
oink ,,__
    o"   )~
     ''''

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re^5: how would you detect a math expression by shmem
in thread how would you detect a math expression by Anonymous Monk

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