From 73aa0421a73952ce13d731d8bbeabd2bb85d0bbf Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Mon, 20 Feb 2012 22:35:08 +0100
Subject: ProcessBlock is sometimes called with pfrom==NULL

---
 src/main.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index b73037fb6a..ca998ea8c9 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1652,7 +1652,8 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock)
         int64 deltaTime = pblock->GetBlockTime() - pcheckpoint->nTime;
         if (deltaTime < 0)
         {
-            pfrom->Misbehaving(100);
+            if (pfrom)
+                pfrom->Misbehaving(100);
             return error("ProcessBlock() : block with timestamp before last checkpoint");
         }
         CBigNum bnNewBlock;
@@ -1661,7 +1662,8 @@ bool ProcessBlock(CNode* pfrom, CBlock* pblock)
         bnRequired.SetCompact(ComputeMinWork(pcheckpoint->nBits, deltaTime));
         if (bnNewBlock > bnRequired)
         {
-            pfrom->Misbehaving(100);
+            if (pfrom)
+                pfrom->Misbehaving(100);
             return error("ProcessBlock() : block with too little proof-of-work");
         }
     }
-- 
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