[sf-perl] Worry about bsd_glob() generated paths?

Chris Palmer chris at noncombatant.org
Mon May 9 17:15:59 PDT 2005

David Alban writes:

>   not -e $path and complain();
>   $age = -M _;
> File::Glob warns that all values returned are tainted.  Fine.  But all
> I'm really doing with the paths is calling stat() with them, and
> print() (and possibly printf()).  Do I really need to check to see if
> they contain bad characters in this situation?

Unless you're opening the files and print[f]ing TO them, then no. stat
does not trigger taint mode's paranoia. This code works fine (I use die
in place of your complain):

#!/usr/bin/perl -T

use strict;
use warnings;

my $age;
for (@ARGV) {
    die $! unless defined ($age = -M $_);
    print "$age\n";

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