The following sequence in an Apache2 post_config handler gets a taint error:
  opendir DIR, DB_DIREC or die "can't open direc ".DB_DIREC.": $!";
  my @dels = grep /^__/, readdir(DIR);
  closedir DIR;
  
  for (@dels) {substr($_, 0, 0) = DB_DIREC.'/'}
  if  (@dels) {unlink @dels}

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This site runs with taint checking. The code above gets the following fatal error during Apache startup:
[error] Insecure dependency in unlink while running with -T switch at 
+/usr/local/apache2/plib/Central.pm line 189.

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There is nothing like "user input" anywhere near this sequence. Suggestions as to how to get rid of this error will be much appreciated.

Thanks in advance,
cmac
www.animalhead.com

In reply to hard-to-understand taint error by cmac

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