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From:	Andrew Schulman <schulman DOT andrew AT epa DOT gov>
Subject:	Re: socat with IP6 support?
Date:	Thu, 08 May 2014 15:23:52 -0400
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> On Jan 20 03:45, Andrew Schulman wrote:
> > Cygwin doesn't seem to
> > define IPV6_DSTOPTS.  In Ubuntu, it's defined in
> > /usr/include/linux/in6.h (value 59), along with a whole bunch of other
> > IPv6 socket options.
> > 
> > I'm not sure what the best solution is here.  I could define it locally,
> > but would it be better for Cygwin to bring in the missing definitions?
> 
> I don't think so.  I checked the available options on Windows again,
> and IPV6_DSTOPTS is not supported.  I applied a small patch a few
> minutes ago to add a few socket options our headers were missing,
> but there are still a lot of Linux socket options not supported on
> Windows which hinders CYgwin to support them.
> 
> Any chance you could tweak this piece of code to be built only
> if IPV6_DSTOPTS is defined?
> 
> Corinna

I finally got back to this.  I seem to have worked around the problem in
socat v2.  I've uploaded new packages for 1.7 and 2 that have IPv6 support,
but that will need to be tested.  Andrew


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