Re^4: One true regexp for untainting windows filenames?

[jaldhar]

in reply to Re^3: One true regexp for untainting windows filenames?
in thread One true regexp for untainting windows filenames?

To make them safe for what? Most most applications, untaint_path might remove the taint flag, but it doesn't make sure they're safe first.

Safe to use in qx//; in taint mode Earlier, I set $ENV{PATH} to q{}. This means I need to use complete paths to every file or command I use and they need to be untainted to prevent the 'insecure dependency' error.

I had forgotten about argv[0]. Now you have led me to realize that running under -T will not really buying me anything here without additional checking.

Hopefully this conversation will remind others to not complacently assume untainted eq secure if nothing else.

[ikegami]

Safe to use in qx//; in taint mode

In such general terms, it's impossible. You can make it so qx// doesn't croak, but you can't make it safe. Need more info.