Disconnect buggy clients automatically.

[novacoin.git] / src / main.cpp

diff --git a/src/main.cpp b/src/main.cpp
index c4f3d17..fa8e764 100644 (file)
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -486,6 +486,8 @@ bool CTransaction::CheckTransaction() const
         if (!fTestNet && !IsCoinBase() && !txout.IsEmpty() && nTime < OUTPUT_SWITCH_TIME && txout.nValue < MIN_TXOUT_AMOUNT)
             return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue below minimum"));
 
+        if (txout.nValue < 0)
+            return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue is negative"));
         if (txout.nValue > MAX_MONEY)
             return DoS(100, error("CTransaction::CheckTransaction() : txout.nValue too high"));
         nValueOut += txout.nValue;
@@ -3094,6 +3096,13 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
             return true;
         }
 
+        if (pfrom->nVersion < 60010)
+        {
+            printf("partner %s using a buggy client %d, disconnecting\n", pfrom->addr.ToString().c_str(), pfrom->nVersion);
+            pfrom->fDisconnect = true;
+            return true;
+        }
+
         // record my external IP reported by peer
         if (addrFrom.IsRoutable() && addrMe.IsRoutable())
             addrSeenByPeer = addrMe;