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Date:	Sat, 18 Jan 2014 12:47:51 +0100
From:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: socat with IP6 support?
Message-ID:	<20140118114751.GC22079@calimero.vinschen.de>
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On Jan 17 15:39, Aaron Humphrey wrote:
> On Fri, Jan 17, 2014 at 3:19 PM, Corinna Vinschen wrote:
> > Our ipv6 stuff is in cygwin/in6.h, which is included by cygwin/in.h,
> > which in turn is included by netinet/in.h.
>=20
> Ah, that explains it.
>=20
> > We could fetch FreeBSDs netinet/ip6.h.  In contrast to Glibc's
> > netinet/ip6.h it does not include netinet/in.h but we could add
> > that.
> >
> > Aaron, if you copy this file:
> >
> > http://svnweb.freebsd.org/base/stable/10/sys/netinet/ip6.h?revision=3D2=
56281&view=3Dco
> >
> > into /usr/include/netinet, and perhaps add this patch:
> >
> > Index: netinet/ip6.h
> > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > RCS file: /home/ncvs/src/sys/netinet/ip6.h,v
> > retrieving revision 1.22
> > diff -u -p -r1.22 ip6.h
> > --- netinet/ip6.h       10 Apr 2013 00:26:22 -0000      1.22
> > +++ netinet/ip6.h       17 Jan 2014 22:18:50 -0000
> > @@ -64,6 +64,9 @@
> >  #ifndef _NETINET_IP6_H_
> >  #define _NETINET_IP6_H_
> >
> > +#include <inttypes.h>
> > +#include <netinet/in.h>
> > +
> >  /*
> >   * Definition for internet protocol version 6.
> >   * RFC 2460
> >
> > can you build socat with IPv6 support out of the box and it actually
> > works?
>=20
> It did build and work just fine with the FreeBSD ip6.h file, with and
> without the patch, but as I said, for all that socat uses the actual
> ip6.h library, I could have put in a file empty except for the #define
> and it would probably have worked just as well.  Other programs may,
> of course, be slightly pickier.

Thanks.  I added the ip6.h header nevertheless for the upcoming
Cygwin 1.7.28.

Andrew, any chance you could update the socat package to support
IPv6 as well?


Thanks,
Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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