[glib: 1/2] gsocket: Improve default UDP behavior on Windows

[Sebastian Dröge <sdroege src gnome org>]

commit 9cd134d9fbe06b4324dc3097b2f7f482bd8926cd
Author: Pascal Buhler <pascal buhler tandberg com>
Date:   Wed May 26 13:42:10 2010 +0200

    gsocket: Improve default UDP behavior on Windows
    
    An ICMP port unreachable will result in a socket error, which is a
    really bad default for UDP sockets.

 gio/gsocket.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/gio/gsocket.c b/gio/gsocket.c
index 5d8ecfb9c..543cfe927 100644
--- a/gio/gsocket.c
+++ b/gio/gsocket.c
@@ -624,6 +624,16 @@ g_socket (gint     domain,
        fcntl (fd, F_SETFD, flags);
       }
   }
+#else
+  if ((domain == AF_INET || domain == AF_INET6) && type == SOCK_DGRAM)
+    {
+      BOOL new_behavior = FALSE;
+      DWORD bytes_returned = 0;
+
+      /* Disable connection reset error on ICMP port unreachable. */
+      WSAIoctl (fd, SIO_UDP_CONNRESET, &new_behavior, sizeof (new_behavior),
+                NULL, 0, &bytes_returned, NULL, NULL);
+    }
 #endif
 
   return fd;