Named AF_UNIX socket not working in cygwin1.dll of git HEAD.

[Takashi Yano]

Named AF_UNIX socket does not work in cygwin1.dll of git HEAD.

A simple test case is attched.

Expected result:
10: 1234567890

Result in cygwin1.dll of git HEAD:
bind: Bad address
unlink: Device or resource busy


It seems that this occures regarding the following commit.

commit 859d215b7e006e5fc60f686ec976e997e35d169b
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Wed Feb 21 21:40:01 2018 +0100

    Cygwin: split out fhandler_socket into inet and local classes

    First cut, still incomplete

    * fhandler_socket is now base class for other socket classes
    * fhandler_socket_inet handles AF_INET and AF_INET6 sockets
    * fhandler_socket_local handles AF_LOCAL/AF_UNIX sockets
    * finally get rid of fdsock by using set_socket_handle in accept4
    * align file-related calls (fstat,  fstatvfs, fchown, fchmod, facl)
      to Linux.

    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>


-- 
Takashi Yano <takashi.yano@nifty.ne.jp>
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