postfixadmin-devel — Postfix Admin development talk - users are also welcome

[Postfixadmin-devel] Bulk upload email review III

[Sonam P. <s_p...@ru...>]

Hi All,

I have submitted my works for uploading the users from csv file last 
month. However, I haven't received any comments yet.
I would appreciate for the comments to improve my work further.

Thanks

Sonam Penjor

[Postfixadmin-devel] Bulk email upload III Review

[Sonam P. <s_p...@ru...>]

Dear All,


Please find attached copies of files for uploading bulk email Id for III
review.

I would appreciate your comments, suggestions and recommendations to
improve my work.

Thank you


Sonam Penjor

[Postfixadmin-devel] Bulk email upload III Review

[Sonam P. <s_p...@ru...>]

// the following javascript codes were from
// http://rainbow.arch.scriptmania.com/scripts/preload_wait.html

function informProgress( )
{
	 print "<script type='text/javascript' language='javascript'>

			function processWaitPage() { 
			if (document.getElementById){
				document.getElementById('processPage').style.visibility='hidden';
			}else{
					if (document.layers){ 
						document.prepage.visibility = 'hidden';
					}
		  		}
			}
		</script>
		
		<div onload= 'processWaitPage()' id='processPage' style='position:absolute; font-family:arial; font-size:16; left:0px; top:0px; background-color:white; layer-background-color:white; height:100%; width:100%;'> 
			<center><B>Processing.... Please wait!</center>
		</div>";

}

Re: [Postfixadmin-devel] Bulk email upload III Review

[Johnny S. <jo...@so...>]

On Wednesday 13 June 2012 15:33, Sonam Penjor wrote:
> postfixadmin-III-review.rar

RAR format? Are you serious?

If you are using a compression format, use a Free format that everyone can use. RAR is proprietary, and some Linux users, such as myselv, cannot open rar files, so we don't even try.
Besides, rar-files are often a sign of virus or trojan horce attack attempts. Many will drop or delete your mail without reading it whenever they encounter rar attachments.

-- 
Johnny A. Solbu
web site,   http://www.solbu.net
PGP key ID: 0xFA687324
********************************
Kom Arbeidslyst og treng deg på,
her skal du motstand finne.

[Postfixadmin-devel] Bulk email upload III Review

[Sonam P. <s_p...@ru...>]

Dear All,

Sorry for my late response on the bulk email  as I was out of station 
for nearly a month.

Please find attached copies of files for uploading bulk email Id for III 
review.

I would appreciate your comments, suggestions and recommendations to 
improve my work.

Thank you


Sonam Penjor

Re: [Postfixadmin-devel] typo error in vacation.pl

[Christian B. <pos...@cb...>]

Hello,

Am Donnerstag, 24. Mai 2012 schrieb Jan Kruis:
> i made a typo error

> Index: VIRTUAL_VACATION/vacation.pl
> ===================================================================
> --- VIRTUAL_VACATION/vacation.pl	(revision 1388)
> +++ VIRTUAL_VACATION/vacation.pl	(working copy)
> @@ -404,7 +404,7 @@
>                  for (split(/\s*,\s*/, lc($alias))) {
>                      my $singlealias = $_;
>                      $logger->debug("Found alias \'$singlealias\' for
> email \'$email\'. Looking if vacation is on for alias."); 
> -                    $rv = check_for_vacaton($singlealias);
> +                    $rv = check_for_vacation($singlealias);

Thanks! Fixed in SVN r1400.


Regards,

Christian Boltz
-- 
Ihr habt sie ja nicht mehr alle !!
Zum Ersten, zum Zweiten und zum Dritten, wer bietet mehr ?
Schön aber, dass ich so viele Auswahlmöglichkeiten habe. Ich werd' sie 
alle mal ausprobieren. [maX Bauer in suse-linux]

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[David G. <da...@co...>]

Thanks - I'll try and review it tomorrow.... 

I'm a bit surprised about you not needing the fake_from field - but then that allows for the email from to be totally different from the SMTP from field - and in our case it isn't - it's a case of :

SMTP FROM = "us...@do..."
Email FROM = "Mr User <us...@do...>"

And clearly the library is extracting the us...@do... from it as appropriate.

Is there any benefit to us keeping the data separate - i.e. using from and fake_from? Does it give us more "protection" against someone trying to be clever and entering a 'real_name' as e.g. <ra...@ex...> ?


I used this for testing :

#!/usr/bin/perl -w

use Mail::Sender;

%mail = ( to => 'da...@pa...',
    from => 'Bob Jangles <da...@pa...>',
    msg => "whatever",
    subject => 'meh meh',
);   

%smtp = (
    'smtp' => 'localhost',
    'from' => 'me...@me...',
    on_errors => 'die',
);

$body = 'whatever';

eval {
    my $sender = new Mail::Sender { %smtp } ;
    $sender->Open({%mail});
    $sender->SendLineEnc($body);
    $sender->Close() or die($sender->{'error_msg'});
};
if($@) {
    die("pants : $@\n");
}


thanks,

David.

On 25 May 2012, at 00:38, Jan Kruis wrote:

> updated realname patch
> 
> regrade Jan

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Jan K. <pf...@cr...>]

updated realname patch

regrade Jan

Op 24 mei 2012, om 22:16 heeft Tanstaafl het volgende geschreven:

> Very cool, thanks so much for doing this Jan!
> 
> It is surprising how some things can seem like they would be so simple 
> and turn out not to be, while others might look like they'd be really 
> complex, but turn out to be simple...
> 
> Let me know if/when you have something I can test... although, actually, 
> I don't think I have anyone with vacation enabled right now...
> 
> I can set up a test user and play with it though - probably best 
> anyway... ;)
> 
> On 2012-05-24 1:45 PM, Jan Kruis <pf...@cr...> wrote:
>> I'm working at the time on a patch which make it possible to
>> "friendly from address to vacation messages" to fit into through
>> vacation.php and tpl.
>> 
>> It gets the name and email from the table emailbox if the record
>> (realname or friendyname) is blank. This variable is editable and is
>> stored in the vacation table so the user or admin can put in
>> everthink hi or she likes.
>> 
>> I think i needs one or two days to get it all ready.
>> 
>> the temporary patch also contains code for usercontrol (which allows
>> or diables users to set variable like REALNAME, Type of relpy)
>> 
>> Please have a quick look to see i shall go on or stop. see patch
>> 3529523
>> 
>> 
>> regrades Jan
>> 
>> 
>> 
>> Op 24 mei 2012, om 13:15 heeft David Goodwin het volgende geschreven:
>> 
>>> Try svn updating vacation.pl
>>> 
>>> I've added in a $friendly_from and hopefully better error handling around sending the reply.
>>> 
>>> 
>>> David.
> 
> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Postfixadmin-devel mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postfixadmin-devel

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Tanstaafl <tan...@li...>]

Very cool, thanks so much for doing this Jan!

It is surprising how some things can seem like they would be so simple 
and turn out not to be, while others might look like they'd be really 
complex, but turn out to be simple...

Let me know if/when you have something I can test... although, actually, 
I don't think I have anyone with vacation enabled right now...

I can set up a test user and play with it though - probably best 
anyway... ;)

On 2012-05-24 1:45 PM, Jan Kruis <pf...@cr...> wrote:
> I'm working at the time on a patch which make it possible to
> "friendly from address to vacation messages" to fit into through
> vacation.php and tpl.
>
> It gets the name and email from the table emailbox if the record
> (realname or friendyname) is blank. This variable is editable and is
> stored in the vacation table so the user or admin can put in
> everthink hi or she likes.
>
> I think i needs one or two days to get it all ready.
>
> the temporary patch also contains code for usercontrol (which allows
> or diables users to set variable like REALNAME, Type of relpy)
>
> Please have a quick look to see i shall go on or stop. see patch
> 3529523
>
>
> regrades Jan
>
>
>
> Op 24 mei 2012, om 13:15 heeft David Goodwin het volgende geschreven:
>
>> Try svn updating vacation.pl
>>
>> I've added in a $friendly_from and hopefully better error handling around sending the reply.
>>
>>
>> David.

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Jan K. <pf...@cr...>]

I'm working at the time on a patch which make it possible to "friendly from address to vacation messages" to fit into through vacation.php and tpl.

It gets the name and email from the table emailbox if the record (realname or friendyname) is blank. This variable is editable and is stored in the vacation table so the user or admin can put in everthink hi or she likes.

I think i needs one or two days to get it all ready.

the temporary patch also contains code for usercontrol (which allows or diables users to set variable like REALNAME, Type of relpy)

Please have a quick look to see i shall go on or stop. see patch 3529523


regrades Jan



Op 24 mei 2012, om 13:15 heeft David Goodwin het volgende geschreven:

> Try svn updating vacation.pl
> 
> I've added in a $friendly_from and hopefully better error handling around sending the reply.
> 
> 
> David.
> 
> 
> 
> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Postfixadmin-devel mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postfixadmin-devel

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[David G. <da...@co...>]

Try svn updating vacation.pl

I've added in a $friendly_from and hopefully better error handling around sending the reply.


David.

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[David G. <da...@co...>]

>> 
> 
> Well, again, since ianap, I'm not comfortable trying to do this, I'm 
> quite sure I'd break something in a really bad way…


The Mail::Sender takes care of escaping and other crap for you, it seems.

All you need to do is :

1. Get the $name variable from the database somehow - e.g. 

my $query = "SELECT friendly_name FROM some_table WHERE email = ?";
my $stmt = $dbh->prepare($query);
$stmt->execute($email);
$retval = $stmt->rows;
my $friendly_name = "unknown user";
if($retval = 1) {
	my $row = $stmt->fetchrow_array;
	my $friendly_name = $row[0];
}


2. Add in a 'fake_to' and/or 'fake_from' parameter in the %mail hash -

%mail = ( to =>$to,
          from => $from,
          fake_from => "$friendly_name <$from>", 
         msg => encode_base64($body),
         subject =>$subject,
     );


then do the normal Mail::Sender stuff :

        $Mail::Sender::NO_X_MAILER = 1;
        my $sender = new Mail::Sender({%smtp_connection});
        $sender->Open({%mail});
        $sender->SendLineEnc($body);
        $sender->Close() or $logger->error('Failed to send vacation response: ' . $sender->{'error_msg'});
        $logger->debug("Vacation response sent to $to, from $from");




David.


> 
> I guess maybe it is harder than I thought it would be, or someone would 
> have simply come up with aone liner change adding in the $name variable 
> to the mix...
> 
> ------------------------------------------------------------------------------
> Live Security Virtual Conference
> Exclusive live event will cover all the ways today's security and 
> threat landscape has changed and how IT managers can respond. Discussions 
> will include endpoint security, mobile security and the latest in malware 
> threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
> _______________________________________________
> Postfixadmin-devel mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postfixadmin-devel

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Johnny S. <jo...@so...>]

On Thursday 24 May 2012 11:57, Tanstaafl wrote:
> My understanding is they are needed if there is any punctuation in the 
> name, ie a comma

This reminds me of something I saw a few years ago:
http://decayonnet.blogspot.com/2007/11/your-sons-name-is-robert-drop-table.html

:-)=

-- 
Johnny A. Solbu
web site,   http://www.solbu.net
PGP key ID: 0xFA687324
********************************
Kom Arbeidslyst og treng deg på,
her skal du motstand finne.

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Tanstaafl <tan...@li...>]

On 2012-05-17 12:44 PM, Christian Boltz <pos...@cb...> wrote:
> Am Donnerstag, 17. Mai 2012 schrieb Tanstaafl:
>> On 2012-05-15 4:46 PM, David Goodwin<da...@co...>  wrote:
>>> I suspect you'd actually want to make it become :
>>>
>>> my $from = "$name<$email>";
>>>
>>> But I don't know for certain.

>> I checked and there is no $name variable defined in the script... so,
>> any idea/suggestion for how to properly set it?

> As you already found out, you have to read it from the mailbox table.
>
>> Another thing is, the name should be in double quotes, and the email
>> should be in <> brackets, so how to properly accomplish that?

> Add the quotes and<...>  ;-)
> Strictly speaking, the quotes around the name are not always needed, but
> I don't know the details.

My understanding is they are needed if there is any punctuation in the 
name, ie a comma:

"Lastname, Firstname" <em...@ex...>
or an apostrophe:
"Michael O'Donnel" <em...@ex...>

The quotes are not need if the name is simply:

Firstname Lastname <em...@ex...>

> Additionally, you'll need to encode non-ASCII names (similar to
> how the subject is (hopefully - I didn't check the code) encoded).
>
> Please also make sure that the From still looks good when no realname is
> specified - don't add empty quotes or<...>  in this case.

Well, again, since ianap, I'm not comfortable trying to do this, I'm 
quite sure I'd break something in a really bad way...

I guess maybe it is harder than I thought it would be, or someone would 
have simply come up with aone liner change adding in the $name variable 
to the mix...

[Postfixadmin-devel] typo error in vacation.pl

[Jan K. <pf...@cr...>]

Hi, christian

i made a typo error 


[Code]

Index: VIRTUAL_VACATION/vacation.pl
===================================================================
--- VIRTUAL_VACATION/vacation.pl	(revision 1388)
+++ VIRTUAL_VACATION/vacation.pl	(working copy)
@@ -404,7 +404,7 @@
                 for (split(/\s*,\s*/, lc($alias))) {
                     my $singlealias = $_;
                     $logger->debug("Found alias \'$singlealias\' for email \'$email\'. Looking if vacation is on for alias.");
-                    $rv = check_for_vacaton($singlealias);
+                    $rv = check_for_vacation($singlealias);
 # Alias has vacation
                     if ($rv == 1) {
                         $realemail = $singlealias;

[\Code]


Regrades Jan Kruis

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Jan K. <pf...@cr...>]

Can I make a suggestion.

When we add an extra field in the table 'vacation' like  "email_name" and make adjusable in vacation.php / vacatin.tpl

workflow:

First time that an "out of office" for an email address  is created 
mailname is created from $email and $name from table 'mailbox'
display it in the template.

With this in (vacation.php / vacatin.tpl) adaptable to the admin or user [1] customize it at your own discretion. eg
<DO NOT REPLY> no...@do... or leave it unchanged

It is therefore also useable if there would be a change in using a other module than vacation.pl


[1]
with "user control" you would be close to the user.

$ add_realname also comes in this config.inc.php

it's all just an idea but would love to hear your opinion

regards Jan Kruis

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Christian B. <pos...@cb...>]

Hello,

Am Donnerstag, 17. Mai 2012 schrieb Tanstaafl:
> On 2012-05-15 4:46 PM, David Goodwin <da...@co...> wrote:
> > I suspect you'd actually want to make it become :
> > 
> > my $from = "$name<$email>";
> > 
> > But I don't know for certain.
> 
> I checked and there is no $name variable defined in the script... so,
> any idea/suggestion for how to properly set it?

As you already found out, you have to read it from the mailbox table.

> Another thing is, the name should be in double quotes, and the email
> should be in <> brackets, so how to properly accomplish that?

Add the quotes and <...> ;-)
Strictly speaking, the quotes around the name are not always needed, but 
I don't know the details. (Maybe they are needed if the name contains < 
or >.) Additionally, you'll need to encode non-ASCII names (similar to 
how the subject is (hopefully - I didn't check the code) encoded). 

Please also make sure that the From still looks good when no realname is 
specified - don't add empty quotes or <...> in this case.

You'll probably have to read a RFC to find out the 100% correct way. 
Or find a perl module that does the job for you ;-)

Please also make this behaviour configureable ("our $add_realname = 1;") 
- sometimes, I "abuse" the name field and enter some internal notes that 
shouldn't be public...


Regards,

Christian Boltz
-- 
Sometimes I feel that using osc (and OBS) is like driving an alien
space ship, full of nice features, but I cannot read the manual ;-)
[Filipe in opensuse-packaging]

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Tanstaafl <tan...@li...>]

On 2012-05-17 7:07 AM, David Goodwin <da...@co...> wrote:
>>  Also - David, it appears that you aren't very familiar with the
>>  vacation.pl script... is there someone else that you know of that I can
>>  ask about this that is more familiar with it?

> I was being lazy and not looking at the source.

Ahhh... ok, well, no worries if you don't have time or inclination to 
look at this, now or ever... it isn't ultra critical, but it would be 
really nice (it is a big complaint from our users), and it seemed to me 
that it wouldn't be that hard to do...

Thanks...

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[David G. <da...@co...>]

> 
> 
> Also - David, it appears that you aren't very familiar with the 
> vacation.pl script... is there someone else that you know of that I can 
> ask about this that is more familiar with it?



I was being lazy and not looking at the source. 

I suspect I've done more work on it than anyone else…  and I don't know if there is anyone else more familiar with it - perhaps Jan Kuis who has submitted a few patches lately for it which I merged in a few weeks ago?


David.

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Tanstaafl <tan...@li...>]

On 2012-05-15 4:46 PM, David Goodwin <da...@co...> wrote:
> I suspect you'd actually want to make it become :
>
> my $from = "$name<$email>";
 >
> But I don't know for certain.

I'm happy to test it, but...

I checked and there is no $name variable defined in the script... so, 
any idea/suggestion for how to properly set it?

It looks like the best way would be to simply add a query that sets 
$name variable in the send_vacation_email subroutine - and it looks like 
the query that sets the $subject and $body variables is at line 418:

my $query = qq{SELECT subject,body FROM vacation WHERE email=?};

So, I'm thinking a query before (or after, probably doesn't matter?) the 
one above that sets the $name variable - but I'm not sure of the proper 
way to do this - ie, do I use the 'my $query =' prefix, like:

my $query = qq{SELECT name FROM mailbox WHERE email=?};

or just do

qq{SELECT name FROM mailbox WHERE email=?};

Then I'd just change line 432 (the 'my $from =' line below) to:

         my $from = "$name $email";

Another thing is, the name should be in double quotes, and the email 
should be in <> brackets, so how to properly accomplish that?

Should the above be:

         my $from = "$name $email";

or

         my $from = "$name" <$email>;

Or, maybe add two additional lines adding the quotes to the name and the 
brackets to the email, like:

         my $name = "$name";
         my $email = <$email>;

Then just do

         my $from = $name $email;

Or maybe, as in your example:

         my $from = "$name $email";

to separate the two variables with a space?

Thanks for any more insights into how I might accomplish this...

Also - David, it appears that you aren't very familiar with the 
vacation.pl script... is there someone else that you know of that I can 
ask about this that is more familiar with it?

Thanks again,

Charles

Re: [Postfixadmin-devel] Minor modification to Vacation Message - include Name

[David G. <da...@co...>]

> 
> It looks like all that is needed is to grab the users name in the query:
> 
> my $query = qq{SELECT subject,body FROM vacation WHERE email=?};
> 
> ?
> 
> and then change the $from line:
> 
> my $from = $email;
> 
> to something that would include the users name, like:
> 
> my $from = $name $email;
> 

I suspect you'd actually want to make it become :

my $from = "$name <$email>"; 

But I don't know for certain. 

If the vacation script is using a mail library (Mail::Sendmail?) then I would half expect it to have a way of setting the user's real name in the from address.


David

[Postfixadmin-devel] Minor modification to Vacation Message - include Name

[Tanstaafl <tan...@li...>]

Hi all,

I'd really like some assistance figuring out how to do this... I just 
can't seem to get my head around how.

What I'd like is for the $from used for Vacation messages to include the 
persons name, not just their email address...

So, instead of:

From: us...@ex...

it would be:

From: My Name <us...@ex...>

It looks like all that is needed is to grab the users name in the query:

my $query = qq{SELECT subject,body FROM vacation WHERE email=?};

?

and then change the $from line:

my $from = $email;

to something that would include the users name, like:

my $from = $name $email;

Of course, it should be smart enough not to break if the user doesn't 
have a name (all of my users do, but that is beside the point), and it 
would have to be wrapped to not break if non standard naming convention 
is used (ie, Last, First, or First Last III, or whatever)...

So, any suggestions?

Thanks,

Charles

Re: [Postfixadmin-devel] Quota bug

[Christian B. <pos...@cb...>]

Hello,

Am Freitag, 4. Mai 2012 schrieb Bertrand Caplet:
> My god I'm such a jerk, I realized in domains it was fix to 10MB.

No problem, such things can happen ;-)

> Anyway, do you know much about postfix ? I'm trying to have a webmail
> with virtual users. 

Shouldn't be too hard ;-)

The basic configuration for postfix etc. is described in the files in 
the PostfixAdmin documentation (in the DOCUMENTS folder).

Webmail is nothing else than running an IMAP server (typically dovecot 
nowadays) and any webmail frontend (Squirrelmail, roundcube, horde, ...) 
on your webserver that connects to the IMAP server.


Regards,

Christian Boltz
-- 
Von wichtigen Daten gibt es immer ein Backup. Der Umkehrschluß
ist ebenfalls zulässig:  Daten, von denen es kein Backup gibt,
sind nicht wichtig.              [Andreas Feile in suse-linux]

Re: [Postfixadmin-devel] Quota bug

[Bertrand C. <ber...@fr...>]

Le 03/05/2012 21:52, Christian Boltz a écrit : 

Hello,

Am Donnerstag, 3. Mai 2012 schrieb Bertrand Caplet: 

I'm new in using postfixadmin and I'm french. 
I'm having a bug, I changed quota to 200MB max and it is blocked to
10MB  When I'm adding a new virtual account and quota more than 10MB,
it says in French " La limite que vous avez specifie est trop haute!"
it might be like this "The limit you specified is too high!" . It
thought the config.inc.php wasn't consider into postfixadmin but I
launched upgrade.php and setup.php too and it doesn't change
anything. Can you please check (and, if needed, change) the Max Quota (french 
'Limite maximum') setting of the _domain_? This defines the maximum 
value you can use as quota for each mailbox.


Regards,

Christian Boltz My god I'm such a jerk, I realized in domains it was fix to 10MB. 
Thanks, 
Anyway, do you know much about postfix ? I'm trying to have a webmail with virtual users. 
Hope you'll have a great evening, 
Regards, 

-- 
Bertrand Caplet 
Tel. 02 33 35 20 94 
Mob. 06 35 43 68 46 
ber...@fr... 

Re: [Postfixadmin-devel] Quota bug

[Christian B. <pos...@cb...>]

Hello,

Am Donnerstag, 3. Mai 2012 schrieb Bertrand Caplet:
> I'm new in using postfixadmin and I'm french. 
> I'm having a bug, I changed quota to 200MB max and it is blocked to
> 10MB  When I'm adding a new virtual account and quota more than 10MB,
> it says in French " La limite que vous avez specifie est trop haute!"
> it might be like this "The limit you specified is too high!" . It
> thought the config.inc.php wasn't consider into postfixadmin but I
> launched upgrade.php and setup.php too and it doesn't change
> anything.

Can you please check (and, if needed, change) the Max Quota (french 
'Limite maximum') setting of the _domain_? This defines the maximum 
value you can use as quota for each mailbox.


Regards,

Christian Boltz
-- 
One of the main reasons for the downfall of the Roman Empire was that,
lacking zero, they had no way to indicate successful termination of
their C programs.