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From:	"Dave Korn" <dk AT artimi DOT com>
To:	<cygwin AT cygwin DOT com>
Subject:	RE: [OT] PCYMTNQREAIYR, it really works.
Date:	Thu, 23 Sep 2004 17:17:12 +0100
MIME-Version:	1.0
In-Reply-To:	<Pine.GSO.4.61.0409231139080.29444@slinky.cs.nyu.edu>
Message-ID:	<NUTMEGM9WPKMaRbkfxl0000006f@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime:	23 Sep 2004 16:17:12.0814 (UTC) FILETIME=[C8B4E8E0:01C4A188]
Note-from-DJ:	This may be spam

> -----Original Message-----
> From: Igor Pechtchanski [mailto:pechtcha AT cs DOT nyu DOT edu] 
> Sent: 23 September 2004 16:44

> On Thu, 23 Sep 2004, Dave Korn wrote:
> 
> > > -----Original Message-----
> > > From: cygwin-owner On Behalf Of Christopher Faylor
> > > Sent: 23 September 2004 15:40

> > > <idle speculation>
> > > Hmm.  I wonder if I just replaced all of the '@'s with a png
> > > of an '@',
> > > if that would foil the spammers.
> > > <pause>
> > > Nope.  Wouldn't work for the text archives.
> > > </idle speculation>
> >
> >   How about a big ascii-art one then?  THaT WuLd BE SOOooOO 
> B1FF!!1! AND K00L!!1!2!
> 
> You mean, like "`banner -c@ @`"? ;-)

dk AT mace /win/c/> `banner -c@ @`
bash: @@@@: command not found

AAAAAAARRRGHGHGHGHG!!!1!!!!     ToO MANy QuOTEZ!:!:!  ;-P~~~

> Ugh, I can just see the following pasted command line getting mungled:
> 
> user AT host>command.com something

  LOL, I was just thinking about what would happen if someone harvested that
address and tried to spam it, and then I was thinking, hey, I wonder....
lookee what I found!

http://www.command.com/

> (and that's just off the top of my head, there must surely be others).

  Yeh, that's why I suggested clamping down on the chars that would be
accepted by replacing the .* with a [] charset.

> IOW, it's not as easy as it seems at first.

  I know.  Didn't even attempt to deal with emails of the form
<root@[127.0.0.1]>.  Sure there are lots of other corner cases too.  It was
a rough approximation JFTHOI.  [ There are plenty of rfc822-detecting
regexen out there, although not all of them are complete nor correct;
http://www.google.com/search?hl=en&ie=UTF-8&q=regex+rfc822 ]

    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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