From 0e136bdf9a87e70df4f4078508978b1528eedc00 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Tue, 20 Dec 2005 18:36:03 +0000
Subject: [PATCH] don't send zero-length datagrams

---
 direct/src/distributed/ConnectionRepository.py | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/direct/src/distributed/ConnectionRepository.py b/direct/src/distributed/ConnectionRepository.py
index 60f8f3ea57..144f171783 100644
--- a/direct/src/distributed/ConnectionRepository.py
+++ b/direct/src/distributed/ConnectionRepository.py
@@ -504,13 +504,14 @@ class ConnectionRepository(
         pass
 
     def send(self, datagram):
-        if ConnectionRepository.notify.getDebug():
-            print "ConnectionRepository sending datagram:"
-            datagram.dumpHex(ostream)
-
-        self.sendDatagram(datagram)
-
+        # Zero-length datagrams might freak out the server.  No point
+        # in sending them, anyway.
+        if datagram.getLength() > 0:
+            if ConnectionRepository.notify.getDebug():
+                print "ConnectionRepository sending datagram:"
+                datagram.dumpHex(ostream)
 
+            self.sendDatagram(datagram)
 
     # debugging funcs for simulating a network-plug-pull
     def pullNetworkPlug(self):