[cgutman] 38747: - Don't store a null pointer to the protocol table

Author: cgutman
Date: Tue Jan 13 11:42:01 2009
New Revision: 38747

URL: http://svn.reactos.org/svn/reactos?rev=38747&view=rev
Log:
 - Don't store a null pointer to the protocol table

Modified:
    branches/aicom-network-fixes/lib/drivers/ip/network/ip.c

Modified: branches/aicom-network-fixes/lib/drivers/ip/network/ip.c
URL: http://svn.reactos.org/svn/reactos/branches/aicom-network-fixes/lib/drivers/...
==============================================================================
--- branches/aicom-network-fixes/lib/drivers/ip/network/ip.c [iso-8859-1] (original)
+++ branches/aicom-network-fixes/lib/drivers/ip/network/ip.c [iso-8859-1] Tue Jan 13 11:42:01 2009
@@ -346,6 +346,21 @@
 }

+VOID DefaultProtocolHandler(
+    PIP_INTERFACE Interface,
+    PIP_PACKET IPPacket)
+/*
+ * FUNCTION: Default handler for Internet protocols
+ * ARGUMENTS:
+ *     NTE      = Pointer to net table entry which the packet was received on
+ *     IPPacket = Pointer to an IP packet that was received
+ */
+{
+    TI_DbgPrint(MID_TRACE, ("[IF %x] Packet of unknown Internet protocol "
+			    "discarded.\n", Interface));
+}
+
+
 VOID IPRegisterProtocol(
     UINT ProtocolNumber,
     IP_PROTOCOL_HANDLER Handler)
@@ -363,22 +378,7 @@
         return;
     }

-    ProtocolTable[ProtocolNumber] = Handler;
-}
-
-
-VOID DefaultProtocolHandler(
-    PIP_INTERFACE Interface,
-    PIP_PACKET IPPacket)
-/*
- * FUNCTION: Default handler for Internet protocols
- * ARGUMENTS:
- *     NTE      = Pointer to net table entry which the packet was received on
- *     IPPacket = Pointer to an IP packet that was received
- */
-{
-    TI_DbgPrint(MID_TRACE, ("[IF %x] Packet of unknown Internet protocol "
-			    "discarded.\n", Interface));
+    ProtocolTable[ProtocolNumber] = Handler ? Handler : DefaultProtocolHandler;
 }