You usually untaint by matching "nice" stuff and using $1: 

if(  $temp =~ m#([-\w./]*)#  ) {
# or if(  $temp =~ m#^(/?(?:[-\w.]+/)*[-\w.]*)$#  ) {
    $temp= $1;
} else {
    die "Invalid input...";
}

[download]

The die may not be the proper way to fail, depending on your environment.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: Untainted done right! by tye
in thread Untainted done right! by SilverB1rd

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