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Mail Archives: cygwin/2018/07/04/06:51:24

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Date: Wed, 4 Jul 2018 12:51:08 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Named AF_UNIX socket not working in cygwin1.dll of git HEAD.
Message-ID: <20180704105108.GM3111@calimero.vinschen.de>
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On Jul  4 04:17, Takashi Yano wrote:
> Hi Corinna,
>=20
> On Wed, 4 Jul 2018 02:01:08 +0900
> Takashi Yano wrote:
> > I have check and found this happens only in 32 bit version. I mean
> > 32 bit cygwin on 64 bit windows 10. 64 bit version work as expected.
>=20
> I have looked into this problem, and found calling af_local_set_secret()
> in fhandler_socket_local::bind() causes exception 0xc0000005.
>=20
> Calling RtlGenRandom() in af_local_set_secret() may not be as expected.
>=20
> While building cygwin1.dll in 32 bit environment, following warning is
> shown. This is probably the cause.
>=20
> Warning: resolving _SystemFunction036 by linking to _SystemFunction036 AT 8
>=20
> I am not sure why, but the following patch seems to be able solve this
> problem.
>=20
> diff --git a/winsup/cygwin/fhandler_socket_local.cc b/winsup/cygwin/fhand=
ler_socket_local.cc
> index 2e01f30a2..68786f3a4 100644
> --- a/winsup/cygwin/fhandler_socket_local.cc
> +++ b/winsup/cygwin/fhandler_socket_local.cc
> @@ -21,7 +21,7 @@
>  #undef u_long
>  #define u_long __ms_u_long
>  #endif
> -#include <w32api/ntsecapi.h>
> +#include <ntsecapi.h>
>  #include <w32api/ws2tcpip.h>
>  #include <w32api/mswsock.h>
>  #include <unistd.h>
>=20
> Thank you.

Thanks for catching.  I pushed your patch (using "" rather than <>
just for clearness) with a description.


Thanks,
Corinna

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

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