[newlib-cygwin] Cygwin: AF_UNIX: open_pipe: call recv_peer_info

[Ken Brown]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=2031b48c93512e644d18d7ed71263fe27ca1eac6

commit 2031b48c93512e644d18d7ed71263fe27ca1eac6
Author: Ken Brown <kbrown@cornell.edu>
Date:   Sun Oct 4 11:05:33 2020 -0400

    Cygwin: AF_UNIX: open_pipe: call recv_peer_info
    
    If open_pipe is called with xchg_sock_info true, call recv_peer_info
    in addition to send_sock_info.

Diff:
---
 winsup/cygwin/fhandler_socket_unix.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/fhandler_socket_unix.cc b/winsup/cygwin/fhandler_socket_unix.cc
index 1a9532fe5..9f7f86c47 100644
--- a/winsup/cygwin/fhandler_socket_unix.cc
+++ b/winsup/cygwin/fhandler_socket_unix.cc
@@ -941,7 +941,11 @@ fhandler_socket_unix::open_pipe (PUNICODE_STRING pipe_name, bool xchg_sock_info)
     {
       set_handle (ph);
       if (xchg_sock_info)
-	send_sock_info (false);
+	{
+	  /* FIXME: Should we check for errors? */
+	  send_sock_info (false);
+	  recv_peer_info ();
+	}
     }
   return status;
 }