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PuTTY semi-bug da-response

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summary: PuTTY's response to DA is suboptimal
class: semi-bug: This might or might not be a bug, depending on your precise definition of what a bug is.
difficulty: fun: Just needs tuits, and not many of them.
priority: medium: This should be fixed one day.
present-in: 0.53b 2003-03-25

At present, PuTTY's default response to DA (CSI c) is CSI ? 6 c, which
denotes a VT102.  This is slightly inconsistent with xterm, which returns
CSI ? 1 ; 2 c -- a VT100 with AVO.  Since PuTTY supports quite a few VT400
options, I suspect it would be more sensible for it to return something
in the 6x range, perhaps based on the current compatibility level set
by DECSCL.  Maybe it should even be configurable -- it is on a VT420.

We've had a report of this causing problems with entry of greek text, and
a suggested replacement: <000801c3a54f$1cc29720$befba8c0@semantix.private.gr>
(suggesting CSI ? 62 ; 1 ; 2 ; 6 ; 7 ; 8 ; 9 c). Haven't analysed this
solution yet.

There have been several reports of our inaccurate response causing
trouble with VMS hosts.

Audit trail for this semi-bug.

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(last revision of this bug record was at 2005-09-19 15:23:25 +0000)

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