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From: Andrew Schulman <schulman.andrew@epa.gov>
Subject: Re: socat with IP6 support?
Date: Thu, 08 May 2014 15:23:52 -0400
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References: <52D985D3.9070506@etr-usa.com> <CAF+jOM3X96jE+2nXBbadstJf6ehKCk0ae9est+6wvX5G1VFupg@mail.gmail.com> <52D9A0C9.4080508@etr-usa.com> <20140117213255.GA1843@ednor.casa.cgf.cx> <20140117221946.GA22079@calimero.vinschen.de> <CAF+jOM3YUtgtae5L=kTmaChYRGQYrp6yGg9H8CbFQ3GguW5-0Q@mail.gmail.com> <20140118114751.GC22079@calimero.vinschen.de> <6nnpd9tm0hn3od1ch642flc0upuvr15jau@4ax.com> <20140120172758.GA2357@calimero.vinschen.de>
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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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