SUMMARY: AntiFlash talkd

[ra () rhi hi is (Richard Allen)]

I have recived quite alot of mail regarding my request for a talk daemon
that can remove those annoying flashes. Apparently this is a hot issue,
many people sent me Email saying that they where interested in this matter.


Here are the most interesting replys I have recived so far.

sameer <sameer () c2 org> wrote:

>         I hacked up ntalkd to make flashes useless. (It just checks to
> see if every character works in isprint() -- if not then it prints -
> instead of thata character..) I also hacked ntalkd to do filtering
> based on remote user and remote site. (Controlled by a file
> ~/.talkdrc)
>         I couldn't find source to talkd which would work thogh so I
> couldn't hack talkd. Only ntalkd.
>         It didn't do logging of flashes.



"Martin J. Laubach" <mjl () CSlab tuwien ac at> wrote:

>   I have overhauled a linux talkd to filter control characters
> and log such occurences. It also checks for the calling host
> in the talk packet being the same as the host the packet came
> from and yell if they don't match as well.
>
>   It works on OSF/1, probably linux with little modifications.
>
>         mjl


"James M. Golovich" <statik () squeaky free org> wrote:

> I dont know about for any other operating systems, but for linux, someone 
> wrote or edited a talkd that filters them.. You can ftp it from 
> sunsite.unc.edu, it is /pub/Linux/system/Network/chat/talkd.bomb_proof.tgz
> I believe there was the source in there.. I am currently running it.. it 
> logs them to your syslog like this: 
> Apr 19 22:19:26 whitehouse talkd[4694]: blocked 
> VT100 BOMB to user: static (apparently from: localhost)
>
> I ran flash localy to the user static.. 
>
> hope this helped



Shortly after I sent my request to bugtraq, I got an idea to look around
on my local Linux mirror and found "talkd+antiflash+hatemail.tar.gz"
which basicly filters out flashes and then sends automatic 'hatemail' to
root () remote site

However, I ran into problems compiling it on our HP9000's, Linux
apparently has a '<protocols/talkd.h>' in it's system includes.

Best regards,
Richard Allen
--
#include <std/sig.h>