From cfa11fe26af06851ff57e224cb5da9948e20072f Mon Sep 17 00:00:00 2001
From: alex <alex@alex-VirtualBox.(none)>
Date: Thu, 1 Aug 2013 02:13:11 +0400
Subject: [PATCH] Treat non-empty coinbase in PoS blocks as DoS attempt

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

diff --git a/src/main.cpp b/src/main.cpp
index 19d67a9..977a646 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -2133,9 +2133,9 @@ bool CBlock::CheckBlock(bool fCheckPOW, bool fCheckMerkleRoot) const
 
     if (IsProofOfStake())
     {
-        // ppcoin: coinbase output should be empty if proof-of-stake block
+        // Coinbase output should be empty if proof-of-stake block
         if (vtx[0].vout.size() != 1 || !vtx[0].vout[0].IsEmpty())
-            return error("CheckBlock() : coinbase output not empty for proof-of-stake block");
+            return DoS(100, error("CheckBlock() : coinbase output not empty for proof-of-stake block"));
 
         // Second transaction must be coinstake, the rest must not be
         if (vtx.empty() || !vtx[1].IsCoinStake())
-- 
1.7.1