Perl problems on FreeBSD (again)

Mog lists at
Tue Oct 20 12:50:44 IST 2009

Hi all,

I upgraded MailScanner last night along with a number of other ports, 
which unfortunately included a micro update to Perl. On FreeBSD it went 
from perl-5.10.0 to perl-5.10.1, and judging by the error messages in 
the maillog, it seems that the old taint mode problem has resurfaced:

Could not use Custom Function code 
it could not be "require"d. Make sure the last line is "1;" and the 
module is correct with perl -wc (Error: Insecure dependency in require 
while running with -T switch at 
/usr/local/lib/MailScanner/MailScanner/ line 754.

I'm seeing this same error message being shown for these files as well:,,,,, and

 From what I understand, FreeBSD runs perl programs with the -T option 
(taint mode), which is basically some additional security check. If I'm 
reading this right, the additional security check (for some reason) 
seems to have a problem with 'eval { require $fullfile; };', the code 
used to require the CustomFunction modules MailScanner uses:

    $fullfile = "$dir/$filename";
    next unless -f $fullfile and -s $fullfile;
    eval { require $fullfile; };
    if ($@) {
      MailScanner::Log::WarnLog("Could not use Custom Function code %s, " .
                                "it could not be \"require\"d. Make sure " .
                                "the last line is \"1;\" and the module " .
                                "is correct with perl -wc (Error: %s)",
                                $fullfile, $@);

Does this makes sense to anyone? Naturally I've reported this problem to 
the FreeBSD people as well to see if they can help work out what is 
going on.


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