Re: A Strang bug using Ctrl-N, perhaps a way to deny service on a shell

[Erik Fichtner <techs () obfuscation org>]

On Sun, Dec 16, 2001 at 02:22:27AM -0500, Ben Allen wrote:
> I've found a bug. I'm not sure what the bug is in. Since it is so widely
> found I can't find out what it is.

It's not a bug. it's a (legacy) feature.

Ctrl-N is the ASCII "Shift-Out Charset" code.   On really old equipment,
this would cause the print head to shift to an alternate character set
for printing interesting characters.   VT100's and such implement this
as well. 

Control-O is the ASCII "Shift-In Charset" code.  It reverses Control-N.

-- 
                        Erik Fichtner; Unix Ronin
                    http://www.obfuscation.org/techs/
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."  -- Benjamin Franklin, 1759

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