SUMMARY: AntiFlash talkd
Richard Allen (ra@rhi.hi.is)
Mon, 24 Apr 1995 11:03:11 +0000 (GMT)
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>