Bugtraq mailing list archives
Re: Wall and talkd pass binary data
From: aem () symbiosis ahp com (a.e.mossberg)
Date: Thu, 21 Jul 1994 12:26:29 -0500 (EDT)
I wrote:
This is a problem which has existed at least a decade and is well known. If you check comp.risks about 1984 or 1985 you'll see an article by me about it, and I was hardly the first. We demonstrated it via "write", or just echo'ing directly to the port, to put it in block mode, clear the screen, send the command we wanted executed, and then send the code to tell the terminal to send the contents of the screen.
From the desk of Christopher Klaus: Will this work with vt100 terminals?
Well, then you get into a argument. What do you mean by "vt100"? Apparently, a real, live, standard DEC VT100 terminal did not support the block mode sequence I talked about in my article, but one version of the DEC VT100 did, and pretty much every VT100 clone did as well, and the real DEC VT102 I had also supported it. Using block mode is not the only to get the terminal to send something, of course. aem -- Andrew Mossberg Network Administrator & Juggler (305) 597-4110 fax 597-4002
Current thread:
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- Re: Is starting a user program on priv port via inetd dangerous ? Graham Toal (Jul 22)
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- root name server corruption, denial of service prob Mark (Jul 21)
- Re: root name server corruption, denial of service prob Mark Kosters (Jul 21)
- Re: Wall and talkd pass binary data Paul Robinson (Jul 20)
- Re: Escape sequences (was Wall and talkd pass binary data) Bruce Barnett (Jul 20)
- Re: Wall and talkd pass binary data Richard Huddleston (Jul 20)
- Re: Wall and talkd pass binary data G.J.W. Hagenaars (Jul 20)
- Re: Wall and talkd pass binary data a.e.mossberg (Jul 21)
- Re: Wall and talkd pass binary data Paul Robinson (Jul 22)