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Message-ID:	<4028B600.5070803@lapo.it>
Date:	Tue, 10 Feb 2004 11:44:16 +0100
From:	Lapo <lapo AT lapo DOT it>
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To:	Mailing List: CygWin <cygwin AT cygwin DOT com>
Subject:	Re: IPv6 integration status in Cygwin
References:	<20040209073846 DOT H678 AT tempura DOT lava DOT net> <6 DOT 0 DOT 1 DOT 1 DOT 0 DOT 20040209135633 DOT 038e13e0 AT 127 DOT 0 DOT 0 DOT 1> <20040209091557 DOT W6696 AT tempura DOT lava DOT net> <40281317 DOT 9020707 AT lapo DOT it>
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Lapo wrote:

| I guess the longest problem would
| be to think a way not to interfere with normal Win98 and Win2000 CygWin
| support when IPv6 is not available.

Thinking about it I think it is a problem similiar to 64-bit file
support: CygWin DLL uses the 64-bit structures also on Win98, with no
problem, isn't it? (but of course the OS doesn't support them)

IPv6 support could be on a similiar base: the DLL "always" supporting it
and silently returning error when the OS doesn't have that support (I
guess detection could be as easy as not finding the wship6.dll dinamic
library).

Problem is: do applications behave correctly when they try to listen on,
maybe 0::1 and the network layers says "nay"?
I guess they should, at least...

Lapo

- --
L a p o   L u c h i n i
l a p o @ l a p o . i t
w w w . l a p o . i t /
http://www.megatokyo.it
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