File extractcerts.pl of Package openssl-certs

#!/usr/bin/perl -w
# 
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Netscape security libraries.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 1994-2000
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
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use strict;
use bytes;

my $count = 0;
my @objects = ();
my $object = undef;

while(<>) {
  my @fields = ();

  s/^((?:[^"#]+|"[^"]*")*)(\s*#.*$)/$1/;
  next if (/^\s*$/);

  if( /(^CVS_ID\s+)(.*)/ ) {
    next;
  }

  # This was taken from the perl faq #4.
  my $text = $_;
  push(@fields, $+) while $text =~ m{
      "([^\"\\]*(?:\\.[^\"\\]*)*)"\s?  # groups the phrase inside the quotes
    | ([^\s]+)\s?
    | \s
  }gx;
  push(@fields, undef) if substr($text,-1,1) eq '\s';

  if( $fields[0] =~ /BEGINDATA/ ) {
    next;
  }

  if( $fields[1] =~ /MULTILINE/ ) {
    $fields[2] = "";
    while(<>) {
      last if /END/;
      chomp;
      $fields[2] .= $_;
    }
  }

  if( $fields[0] =~ /CKA_CLASS/ ) {
    $count++;
    push @objects, $object if $object;
    $object = {};
  }

  $object->{$fields[0]} = $fields[2];
}

use MIME::Base64;
for $object (@objects) {
	if($object->{'CKA_CLASS'} eq 'CKO_CERTIFICATE' && $object->{'CKA_CERTIFICATE_TYPE'} eq 'CKC_X_509') {
		my $file = $object->{'CKA_LABEL'};
		$file =~ s/[^[:alnum:]]/_/g;
		$file .= '.pem';
		open (O, '>', $file);
		print "$file\n";
		my $value = $object->{'CKA_VALUE'};
		my $enc = '';
		$enc .= pack("C", oct($+)) while $value =~ /\G\\([0-3][0-7][0-7])/g;
		print O "-----BEGIN CERTIFICATE-----\n";
		print O encode_base64($enc);
		print O "-----END CERTIFICATE-----\n";
		close O;
	} else {
		# TODO: should we somehow evaluate the trust value?
#		print "skipping ", $object->{'CKA_LABEL'}, "\n";
	}
}