+2010-01-05 12:05 Jochen Striepe
+
+ * t-prot: Release as v2.11.
+
+2010-01-05 12:01 Jochen Striepe
+
+ * contrib/filter_innd.pl: Command line default has changed, check
+ flags must be set now.
+
+2010-01-05 11:46 Jochen Striepe
+
+ * t-prot.1: Better explain ratio check value.
+
+2010-01-05 11:43 Jochen Striepe
+
+ * t-prot.1: Update copyright time stamp.
+
+2010-01-05 11:42 Jochen Striepe
+
+ * t-prot, t-prot.1: Fix initialization and command line parsing for
+ --check (this should work as advertised now). Make the ratio check
+ code a little easier to read. Add the default value for the ratio
+ check to the man page.
+
+2010-01-04 11:07 Jochen Striepe
+
+ * t-prot.1: Remove URLs to example scripts and configs. The files
+ are provided with the package.
+
2009-12-30 21:34 Jochen Striepe
* t-prot, t-prot.1: Fix last commit, release as t-prot v2.10.
-# $Id: filter_innd.pl,v 1.5 2005/04/15 14:07:11 jochen Exp $
+# $Id: filter_innd.pl,v 1.6 2010/01/05 12:01:13 jochen Exp $
# Copyright (c) 2004-2005 Jochen Striepe <t-prot@tolot.escape.de>
#
# This file is provided as an example how t-prot can be used for
print OUT $foo;
close OUT;
- open(IN, "/usr/bin/t-prot -m -t -p --body --check -i $f|")
+ open(IN, "/usr/bin/t-prot -m -t -p --body --check=ratio -i $f|")
|| goto FINISH;
$rval = <IN>;
close IN;
+++ /dev/null
---- t-prot 2009-12-30 22:34:16.000000000 +0100
-+++ t-prot-gol 2009-12-30 22:35:36.000000000 +0100
-@@ -4,7 +4,7 @@
- require 5.006;
- use strict;
- use Fcntl qw(O_EXCL O_WRONLY O_CREAT);
--use Getopt::Mixed qw(nextOption);
-+use Getopt::Long qw(:config gnu_getopt no_ignore_case);
- use constant VER => '2.10';
- use constant REV => '';
- use constant REL => q$Revision: 1.267 $=~m/(\d+(?:\.\d+)+)/;
-@@ -915,83 +915,82 @@
- (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
- my $ifile = '-'; # use STDIN if nothing specified
-
-+# temp vals:
-+my ($_t1, $_t2, $_t3, $_t4, $_t5, $_t6, $_t7, $_t8, $_t9, $_ta, $_tb) = undef;
-+
- # get command line params:
--Getopt::Mixed::init('a A=s c d e h i=s k L=s l m M=s o=s P=s p:s r S:i'.
-- ' s t v w bigq:s body check:s debug>d diff ftr-ad ftr-ml groupwise'.
-- ' help>h kminl=i kmaxl=i kdiff=i lax-security locale=s max-lines=i'.
-- ' ms-smart mua>M pgp-short pgp-move pgp-move-vrf sigsmax:i spass'.
-- ' version>v');
--while (my ($opt, $val, $pretty) = nextOption()) {
-- if ($opt eq 'a') { $ad = 1; }
-- elsif ($opt eq 'A') { $ads = $val; }
-- elsif ($opt eq 'bigq') {
-- if ($val !~ /^(?:(\d+)(?:,(\d+))?)?$/) { help(); }
-- $bigqn = $1?$1:30;
-- $bigqx = $2?$2:10;
-- if ($bigqn<=0 || $bigqx<=0 || $bigqn<=$bigqx) { help(); }
-- }
-- elsif ($opt eq 'body') { $nohdr = 1; $hdrs = 1; }
-- elsif ($opt eq 'c') { $cr = 1; }
-- elsif ($opt eq 'check') {
-- $check = 1;
-- while ($val && $val =~ s/^([^,\s]+)(?:,(\S+))?$/$2/) {
-- my $foo = $1;
-+if (!Getopt::Long::GetOptions(
-+ 'a' => \$ad,
-+ 'A=s' => \$ads,
-+ 'bigq:s' => \$_t1,
-+ 'c' => \$cr,
-+ 'check:s' => \$_t9,
-+ 'debug|d' => \$sysl,
-+ 'diff' => \$diff,
-+ 'e' => \$elli,
-+ 'ftr-ad' => \$ftr_ad,
-+ 'ftr-ml' => \$ftr_ml,
-+ 'groupwise' => \$gw,
-+ 'help|h' => \$_t2,
-+ 'i=s' => \$ifile,
-+ 'k' => \$kamm,
-+ 'kminl=i' => \$_t3,
-+ 'kmaxl=i' => \$_t4,
-+ 'kdiff=i' => \$_t5,
-+ 'L=s' => \$footers,
-+ 'l' => \$ml,
-+ 'lax-security' => \$lax,
-+ 'locale=s' => \$locale,
-+ 'max-lines=i' => \$maxlines,
-+ 'ms-smart' => \$ms_smart,
-+ 'mua|M=s' => \$_t7,
-+ 'm' => \$ms,
-+ 'o=s' => \$ofile,
-+ 'P=s' => \$boun,
-+ 'p:s' => \$_t8,
-+ 'pgp-short' => \$pgpshort,
-+ 'pgp-move' => \$pgpmove,
-+ 'pgp-move-vrf' => \$pgpmovevrf,
-+ 'r' => \$hdrs,
-+ 'S:i' => \$_t6,
-+ 's' => \$sig,
-+ 'sigsmax:i' => \$_ta,
-+ 'spass' => \$spass,
-+ 't' => \$trad,
-+ 'version|v' => \$_tb,
-+ 'w' => \$trsp
-+ )) {
-+ help();
-+}
-
-- if ($foo =~ /^ratio=(0?\.\d+)$/) {
-- $check_ratio = $1?$1:1;
-- }
-- }
-+# clean up temp vals:
-+if (defined $_t1) {
-+ if ($_t1 !~ /^(?:(\d+)(?:,(\d+))?)?$/) { help(); }
-+ $bigqn = $1?$1:30;
-+ $bigqx = $2?$2:10;
-+ if ($bigqn<=0 || $bigqx<=0 || $bigqn<=$bigqx) { help(); }
-+}
-+if (defined $_t2) { help(); }
-+if (defined $_t3) { $kminl = $_t3; $kamm = 1; }
-+if (defined $_t4) { $kmaxl = $_t4; $kamm = 1; }
-+if (defined $_t5) { $kdiff = $_t5; $kamm = 1; }
-+if (defined $_t6) { $lsig = $_t6 ? $_t6 : $maxsig; }
-+if (defined $_t7) {
-+ $mua = lc($_t7);
-+ # mutt still displays the message when ^C'ing pgp verification:
-+ if ($mua eq 'mutt') { $SIG{'INT'} = 'sigint_handler'; }
-+}
-+if (defined $_t8) { $mda = $_t8 ? $_t8 : '1'; }
-+if (defined $_t9) {
-+ $check = 1;
-+ while ($_t9 && $_t9 =~ s/^([^,\s]+)(?:,(\S+))?$/$2/) {
-+ my $foo = $1;
-+ if ($foo =~ /^ratio=(0?\.\d+)$/) { $check_ratio = $1?$1:1; }
- }
-- elsif ($opt eq 'd') { $sysl = 1; }
-- elsif ($opt eq 'diff') { $diff = 1; }
-- elsif ($opt eq 'e') { $elli = 1; }
-- elsif ($opt eq 'ftr-ad') { $ftr_ad = 1; $ad = 1; }
-- elsif ($opt eq 'ftr-ml') { $ftr_ml = 1; $ml = 1; }
-- elsif ($opt eq 'groupwise') { $gw = 1; }
-- elsif ($opt eq 'i') { $ifile = $val; }
-- elsif ($opt eq 'k') { $kamm = 1; }
-- elsif ($opt eq 'kminl') { $kminl = $val; $kamm = 1; }
-- elsif ($opt eq 'kmaxl') { $kmaxl = $val; $kamm = 1; }
-- elsif ($opt eq 'kdiff') { $kdiff = $val; $kamm = 1; }
-- elsif ($opt eq 'L') { $footers = $val; }
-- elsif ($opt eq 'l') { $ml = 1; }
-- elsif ($opt eq 'lax-security') { $lax = 1; }
-- elsif ($opt eq 'locale') { $locale = $val; }
-- elsif ($opt eq 'm') { $ms = 1; }
-- elsif ($opt eq 'max-lines') { $maxlines = $val; }
-- elsif ($opt eq 'ms-smart') { $ms_smart = 1; $ms = 1; }
-- elsif ($opt eq 'M') {
-- $mua = lc($val);
--
-- if ($mua eq 'mutt') {
-- # mutt still displays the message when ^C'ing pgp verification:
-- $SIG{'INT'} = 'sigint_handler';
-- }
-- }
-- elsif ($opt eq 'o') { $ofile = $val; }
-- elsif ($opt eq 'P') { $boun = $val; }
-- elsif ($opt eq 'p') { $mda = $val ? $val : '1'; }
-- elsif ($opt eq 'pgp-short') { $pgpshort = 1; }
-- elsif ($opt eq 'pgp-move') { $pgpmove = 1; }
-- elsif ($opt eq 'pgp-move-vrf') { $pgpmovevrf = 1; }
-- elsif ($opt eq 'r') { $hdrs = 1; }
-- elsif ($opt eq 'S') { $lsig = $val ? $val : $maxsig; }
-- elsif ($opt eq 's') { $sig = 1; }
-- elsif ($opt eq 'sigsmax') { $sign = $val ? $val : undef; }
-- elsif ($opt eq 'spass') { $spass = 1; }
-- elsif ($opt eq 't') { $trad = 1; }
-- elsif ($opt eq 'v') { version(); }
-- elsif ($opt eq 'w') { $trsp = 1; }
-- else { help(); }
- }
--Getopt::Mixed::cleanup();
--if (($ml && $footers eq '')|| # no -l without -L
-- ($ad && $ads eq '')|| # no -a without -A
-- ($nohdr && $pgpshort)|| # --body and --pgp-short are like oil and water
-- ($ifile eq '')|| # no empty -i
-- ($ofile eq '')) # no empty -o
--{ help(); }
--
-+if (defined $_ta) { $sign = $_ta ? $_ta : undef; }
-+if (defined $_tb) { version(); }
-+if ($ms_smart) { $ms = 1; }
-
- if ($mua eq 'mutt') {
- if (defined $locale && $locale ne '' && $locale ne 'C' && $locale ne 'POSIX') {
-@@ -1053,11 +1052,15 @@
- m/^([^%]*)/;
- }
- }
--
--}
--else {
-- if ($ms_smart || $pgpshort || $pgpmove || $pgpmovevrf) { help(); }
- }
-+elsif ($ms_smart || $pgpshort || $pgpmove || $pgpmovevrf) { help(); }
-+
-+if (($ml && $footers eq '')|| # no -l without -L
-+ ($ad && $ads eq '')|| # no -a without -A
-+ ($nohdr && $pgpshort)|| # --body and --pgp-short are like oil and water
-+ ($ifile eq '')|| # no empty -i
-+ ($ofile eq '')) # no empty -o
-+{ help(); }
-
-
- # Read message:
--- /dev/null
+--- t-prot 2010-01-05 13:03:01.000000000 +0100
++++ t-prot-gol 2010-01-05 13:04:08.000000000 +0100
+@@ -4,7 +4,7 @@
+ require 5.006;
+ use strict;
+ use Fcntl qw(O_EXCL O_WRONLY O_CREAT);
+-use Getopt::Mixed qw(nextOption);
++use Getopt::Long qw(:config gnu_getopt no_ignore_case);
+ use constant VER => '2.11';
+ use constant REV => '';
+ use constant REL => q$Revision: 1.268 $=~m/(\d+(?:\.\d+)+)/;
+@@ -914,84 +914,83 @@
+ (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+ my $ifile = '-'; # use STDIN if nothing specified
+
++# temp vals:
++my ($_t1, $_t2, $_t3, $_t4, $_t5, $_t6, $_t7, $_t8, $_t9, $_ta, $_tb) = undef;
++
+ # get command line params:
+-Getopt::Mixed::init('a A=s c d e h i=s k L=s l m M=s o=s P=s p:s r S:i'.
+- ' s t v w bigq:s body check:s debug>d diff ftr-ad ftr-ml groupwise'.
+- ' help>h kminl=i kmaxl=i kdiff=i lax-security locale=s max-lines=i'.
+- ' ms-smart mua>M pgp-short pgp-move pgp-move-vrf sigsmax:i spass'.
+- ' version>v');
+-while (my ($opt, $val, $pretty) = nextOption()) {
+- if ($opt eq 'a') { $ad = 1; }
+- elsif ($opt eq 'A') { $ads = $val; }
+- elsif ($opt eq 'bigq') {
+- if ($val !~ /^(?:(\d+)(?:,(\d+))?)?$/) { help(); }
+- $bigqn = $1?$1:30;
+- $bigqx = $2?$2:10;
+- if ($bigqn<=0 || $bigqx<=0 || $bigqn<=$bigqx) { help(); }
+- }
+- elsif ($opt eq 'body') { $nohdr = 1; $hdrs = 1; }
+- elsif ($opt eq 'c') { $cr = 1; }
+- elsif ($opt eq 'check') {
+- $check = 1;
+- while ($val && $val =~ /^([^,\s]+)(?:,(\S+))?$/) {
+- my $foo = $1;
+- $val = $2;
++if (!Getopt::Long::GetOptions(
++ 'a' => \$ad,
++ 'A=s' => \$ads,
++ 'bigq:s' => \$_t1,
++ 'c' => \$cr,
++ 'check:s' => \$_t9,
++ 'debug|d' => \$sysl,
++ 'diff' => \$diff,
++ 'e' => \$elli,
++ 'ftr-ad' => \$ftr_ad,
++ 'ftr-ml' => \$ftr_ml,
++ 'groupwise' => \$gw,
++ 'help|h' => \$_t2,
++ 'i=s' => \$ifile,
++ 'k' => \$kamm,
++ 'kminl=i' => \$_t3,
++ 'kmaxl=i' => \$_t4,
++ 'kdiff=i' => \$_t5,
++ 'L=s' => \$footers,
++ 'l' => \$ml,
++ 'lax-security' => \$lax,
++ 'locale=s' => \$locale,
++ 'max-lines=i' => \$maxlines,
++ 'ms-smart' => \$ms_smart,
++ 'mua|M=s' => \$_t7,
++ 'm' => \$ms,
++ 'o=s' => \$ofile,
++ 'P=s' => \$boun,
++ 'p:s' => \$_t8,
++ 'pgp-short' => \$pgpshort,
++ 'pgp-move' => \$pgpmove,
++ 'pgp-move-vrf' => \$pgpmovevrf,
++ 'r' => \$hdrs,
++ 'S:i' => \$_t6,
++ 's' => \$sig,
++ 'sigsmax:i' => \$_ta,
++ 'spass' => \$spass,
++ 't' => \$trad,
++ 'version|v' => \$_tb,
++ 'w' => \$trsp
++ )) {
++ help();
++}
+
+- if ($foo =~ /^ratio(?:=(0?\.\d+))?$/) {
+- $check_ratio = $1?$1:0.75;
+- }
+- }
++# clean up temp vals:
++if (defined $_t1) {
++ if ($_t1 !~ /^(?:(\d+)(?:,(\d+))?)?$/) { help(); }
++ $bigqn = $1?$1:30;
++ $bigqx = $2?$2:10;
++ if ($bigqn<=0 || $bigqx<=0 || $bigqn<=$bigqx) { help(); }
++}
++if (defined $_t2) { help(); }
++if (defined $_t3) { $kminl = $_t3; $kamm = 1; }
++if (defined $_t4) { $kmaxl = $_t4; $kamm = 1; }
++if (defined $_t5) { $kdiff = $_t5; $kamm = 1; }
++if (defined $_t6) { $lsig = $_t6 ? $_t6 : $maxsig; }
++if (defined $_t7) {
++ $mua = lc($_t7);
++ # mutt still displays the message when ^C'ing pgp verification:
++ if ($mua eq 'mutt') { $SIG{'INT'} = 'sigint_handler'; }
++}
++if (defined $_t8) { $mda = $_t8 ? $_t8 : '1'; }
++if (defined $_t9) {
++ $check = 1;
++ while ($_t9 && $_t9 =~ /^([^,\s]+)(?:,(\S+))?$/) {
++ my $foo = $1;
++ $_t9 = $2;
++ if ($foo =~ /^ratio(?:=(0?\.\d+))?$/) { $check_ratio = $1?$1:0.75; }
+ }
+- elsif ($opt eq 'd') { $sysl = 1; }
+- elsif ($opt eq 'diff') { $diff = 1; }
+- elsif ($opt eq 'e') { $elli = 1; }
+- elsif ($opt eq 'ftr-ad') { $ftr_ad = 1; $ad = 1; }
+- elsif ($opt eq 'ftr-ml') { $ftr_ml = 1; $ml = 1; }
+- elsif ($opt eq 'groupwise') { $gw = 1; }
+- elsif ($opt eq 'i') { $ifile = $val; }
+- elsif ($opt eq 'k') { $kamm = 1; }
+- elsif ($opt eq 'kminl') { $kminl = $val; $kamm = 1; }
+- elsif ($opt eq 'kmaxl') { $kmaxl = $val; $kamm = 1; }
+- elsif ($opt eq 'kdiff') { $kdiff = $val; $kamm = 1; }
+- elsif ($opt eq 'L') { $footers = $val; }
+- elsif ($opt eq 'l') { $ml = 1; }
+- elsif ($opt eq 'lax-security') { $lax = 1; }
+- elsif ($opt eq 'locale') { $locale = $val; }
+- elsif ($opt eq 'm') { $ms = 1; }
+- elsif ($opt eq 'max-lines') { $maxlines = $val; }
+- elsif ($opt eq 'ms-smart') { $ms_smart = 1; $ms = 1; }
+- elsif ($opt eq 'M') {
+- $mua = lc($val);
+-
+- if ($mua eq 'mutt') {
+- # mutt still displays the message when ^C'ing pgp verification:
+- $SIG{'INT'} = 'sigint_handler';
+- }
+- }
+- elsif ($opt eq 'o') { $ofile = $val; }
+- elsif ($opt eq 'P') { $boun = $val; }
+- elsif ($opt eq 'p') { $mda = $val ? $val : '1'; }
+- elsif ($opt eq 'pgp-short') { $pgpshort = 1; }
+- elsif ($opt eq 'pgp-move') { $pgpmove = 1; }
+- elsif ($opt eq 'pgp-move-vrf') { $pgpmovevrf = 1; }
+- elsif ($opt eq 'r') { $hdrs = 1; }
+- elsif ($opt eq 'S') { $lsig = $val ? $val : $maxsig; }
+- elsif ($opt eq 's') { $sig = 1; }
+- elsif ($opt eq 'sigsmax') { $sign = $val ? $val : undef; }
+- elsif ($opt eq 'spass') { $spass = 1; }
+- elsif ($opt eq 't') { $trad = 1; }
+- elsif ($opt eq 'v') { version(); }
+- elsif ($opt eq 'w') { $trsp = 1; }
+- else { help(); }
+ }
+-Getopt::Mixed::cleanup();
+-if (($ml && $footers eq '')|| # no -l without -L
+- ($ad && $ads eq '')|| # no -a without -A
+- ($nohdr && $pgpshort)|| # --body and --pgp-short are like oil and water
+- ($ifile eq '')|| # no empty -i
+- ($ofile eq '')) # no empty -o
+-{ help(); }
+-
++if (defined $_ta) { $sign = $_ta ? $_ta : undef; }
++if (defined $_tb) { version(); }
++if ($ms_smart) { $ms = 1; }
+
+ if ($mua eq 'mutt') {
+ if (defined $locale && $locale ne '' && $locale ne 'C' && $locale ne 'POSIX') {
+@@ -1053,11 +1052,15 @@
+ m/^([^%]*)/;
+ }
+ }
+-
+-}
+-else {
+- if ($ms_smart || $pgpshort || $pgpmove || $pgpmovevrf) { help(); }
+ }
++elsif ($ms_smart || $pgpshort || $pgpmove || $pgpmovevrf) { help(); }
++
++if (($ml && $footers eq '')|| # no -l without -L
++ ($ad && $ads eq '')|| # no -a without -A
++ ($nohdr && $pgpshort)|| # --body and --pgp-short are like oil and water
++ ($ifile eq '')|| # no empty -i
++ ($ofile eq '')) # no empty -o
++{ help(); }
+
+
+ # Read message:
#!/usr/bin/perl -w
-# $Id: t-prot,v 1.267 2009/12/30 21:34:16 jochen Exp $
+# $Id: t-prot,v 1.269 2010/01/05 12:05:03 jochen Exp $
require 5.006;
use strict;
use Fcntl qw(O_EXCL O_WRONLY O_CREAT);
use Getopt::Mixed qw(nextOption);
-use constant VER => '2.10';
+use constant VER => '2.11';
use constant REV => '';
-use constant REL => q$Revision: 1.267 $=~m/(\d+(?:\.\d+)+)/;
+use constant REL => q$Revision: 1.269 $=~m/(\d+(?:\.\d+)+)/;
# MTA expecting mail on STDIN
# (you might have to adjust this if using a different MTA)
use constant SENDMAIL => '/usr/sbin/sendmail -oi';
$ftr_ml = undef; # too hard on performance to be default
$ofile = '-'; # use STDOUT if nothing is specified
$spass_prefix = 'SPAM: ';
-$check_ratio = .75; # 3/4 tofu is enough not to accept the message
+$check_ratio = 0; # off by default
$msg_quote = "Blocked by $0: This message has been rejected because of a full quote. Please see http://learn.to/quote/ and http://www.escape.de/users/tolot/mutt/ for more info. Have a nice day!\n";
$msg_ratio = "Blocked by $0: This message has been rejected because of excessive quoting. Please see http://learn.to/quote/ and http://www.escape.de/users/tolot/mutt/ for more info. Have a nice day!\n";
# end of user adjusted vals
if (index($$lines[$x], $indent)==0) { $y++; }
}
}
- $y = $y/$z;
- if ($y>=$check_ratio) {
+ if ($y/$z>=$check_ratio) {
print $msg_ratio;
exit EX_UNAVAILABLE;
}
elsif ($opt eq 'c') { $cr = 1; }
elsif ($opt eq 'check') {
$check = 1;
- while ($val && $val =~ s/^([^,\s]+)(?:,(\S+))?$/$2/) {
+ while ($val && $val =~ /^([^,\s]+)(?:,(\S+))?$/) {
my $foo = $1;
+ $val = $2;
- if ($foo =~ /^ratio=(0?\.\d+)$/) {
- $check_ratio = $1?$1:1;
+ if ($foo =~ /^ratio(?:=(0?\.\d+))?$/) {
+ $check_ratio = $1?$1:0.75;
}
}
}
-.\" $Id: t-prot.1,v 1.139 2009/12/30 21:34:16 jochen Exp $
+.\" $Id: t-prot.1,v 1.143 2010/01/05 11:46:38 jochen Exp $
.\"
-.TH T-PROT "1" "December 2009" "T-PROT"
+.TH T-PROT "1" "January 2010" "T-PROT"
.SH NAME
t-prot \- TOFU Protection - Display Filter for RFC 2822 messages
.SH SYNOPSIS
is the reason for not using standard CPAN modules for handling
messages).
.PP
-For easy usage, you can download a file to be included in your ~/.muttrc:
-.I http://www.escape.de/users/tolot/mutt/t\-prot/muttrc.t\-prot
-.br
-And here is an example S-Lang macro to use t-prot from within slrn:
-.I http://www.escape.de/users/tolot/mutt/t\-prot/t\-prot.sl
+For easy usage, you can include the file muttrc.t\-prot in your
+~/.muttrc. Also coming with the t-prot package is the example S-Lang
+macro t\-prot.sl for using t-prot from within slrn.
.SH OPTIONS
.TP
.BR "\-A" =DIRECTORY
.IR ratio [=n]
.br
If the quoting ratio is n or more, the message is rejected. Must be
-between 0 and 1, or else it is entirely disabled.
+between 0 and 1, or else it is entirely disabled. Default is 0.75
+(i.e., three quarters are quoted).
.TP
.B "\-d, \-\-debug"
"debug":
All of the documentation and software included in the t-prot releases
is copyrighted by Jochen Striepe (except when explicitly stated otherwise).
.PP
-Copyright \(co 2001-2009 Jochen Striepe. All rights reserved.
+Copyright \(co 2001-2010 Jochen Striepe. All rights reserved.
.PP
Redistribution and use, with or without modification, are permitted
provided that the following conditions are met: