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In we have the following subroutine which gets called whenever the Config option 'UNTAINT' is set:
#===================================================================== +========= # Blindly untaint tainted fields in Inline object. #===================================================================== +========= sub env_untaint { my $o = shift; for (keys %ENV) { ($ENV{$_}) = $ENV{$_} =~ /(.*)/; } my $delim = $^O eq 'MSWin32' ? ';' : ':'; $ENV{PATH} = join $delim, grep {not /^\./ and -d $_ and not ((stat($_))[2] & 0022) } split $delim, $ENV{PATH}; map {($_) = /(.*)/} @INC; }
And that works quite well on linux, untainting $ENV{PATH} and leaving it intact. But on windows it clobbers $ENV{PATH}, leaving it empty.

The culprit is the not ((stat($_))[2] & 0022) condition. On linux, where stat($_))[2] is 16877 for all of the folders in my path, ((stat($_))[2] & 0022) is false. But on windows stat($_))[2] is 16895 for all of the folders in my path, and ((stat($_))[2] & 0022) is true.

If I simply remove that condition for windows, everything is fine. But is that the correct thing to do ? Why has that condition been put in there, and what's the correct windows form it should take ?


In reply to and untainting by syphilis

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