From 40f5cb878edd04b4be14f0d73ab706dc2e69124c Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Sun, 6 Jul 2014 14:47:23 +0200
Subject: [PATCH] Send rejects and apply DoS scoring for errors in direct block
 validation.

75f51f2a introduced asynchronous processing for blocks, where reject messages
and DoS scoring could be applied outside of ProcessBlock, because block
validation may happen later.

However, some types of errors are still detected immediately (in particular,
CheckBlock violations), which need acting after ProcessBlock returns.
---
 src/main.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/main.cpp b/src/main.cpp
index b2773953d..04af88ba4 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3984,6 +3984,16 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
 
         CValidationState state;
         ProcessBlock(state, pfrom, &block);
+        int nDoS;
+        if (state.IsInvalid(nDoS)) {
+            pfrom->PushMessage("reject", strCommand, state.GetRejectCode(),
+                               state.GetRejectReason(), inv.hash);
+            if (nDoS > 0) {
+                LOCK(cs_main);
+                Misbehaving(pfrom->GetId(), nDoS);
+            }
+        }
+
     }