[cgutman] 47007: [IP] - Don't try to close the connection again if it has already been terminated by the remote peer

Author: cgutman
Date: Sun Apr 25 00:37:45 2010
New Revision: 47007

URL: http://svn.reactos.org/svn/reactos?rev=47007&view=rev
Log:
[IP]
- Don't try to close the connection again if it has already been terminated by the
remote peer

Modified:
    trunk/reactos/lib/drivers/ip/transport/tcp/tcp.c

Modified: trunk/reactos/lib/drivers/ip/transport/tcp/tcp.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/drivers/ip/transport/t…
==============================================================================
--- trunk/reactos/lib/drivers/ip/transport/tcp/tcp.c [iso-8859-1] (original)
+++ trunk/reactos/lib/drivers/ip/transport/tcp/tcp.c [iso-8859-1] Sun Apr 25 00:37:45
2010
@@ -735,16 +735,24 @@
     Socket = Connection->SocketContext;
     Connection->SocketContext = NULL;
 
-    /* We need to close here otherwise oskit will never indicate
-     * SEL_FIN and we will never fully close the connection
-     */
-    Status = TCPTranslateError( OskitTCPClose( Socket ) );
-
-    if (!NT_SUCCESS(Status))
+    /* Don't try to close again if the other side closed us already */
+    if (Connection->SignalState != SEL_FIN)
     {
-        Connection->SocketContext = Socket;
-        UnlockObject(Connection, OldIrql);
-        return Status;
+       /* We need to close here otherwise oskit will never indicate
+        * SEL_FIN and we will never fully close the connection */
+       Status = TCPTranslateError( OskitTCPClose( Socket ) );
+
+       if (!NT_SUCCESS(Status))
+       {
+           Connection->SocketContext = Socket;
+           UnlockObject(Connection, OldIrql);
+           return Status;
+       }
+    }
+    else
+    {
+       /* We are already closed by the other end so return success */
+       Status = STATUS_SUCCESS;
     }
 
     if (Connection->AddressFile)