Hi Perl Monks,

I wrote a module that runs some command line tools. My problem is that these tools throw their output files to the current directory. That means I have to chdir to a temporary directory and then run the system() command there. Patching these tools is not an option.

The return value of cwd is tainted (I assume that someone mean can make cwd return a wrong path?), so changing back does not work in taint mode. Now two questions:

Can someone do something nasty if i untaint it with 

my  ( $path ) = cwd =~ /(.*)/;

[download]
and how? Is there a better solution?

Do I get burned when I change directories all the time in mod_perl (race conditions?).

In reply to chdir in CGIs, taint mode and mod_perl by lima1

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