fix for block 74638 overflow output transaction

git-svn-id: https://bitcoin.svn.sourceforge.net/svnroot/bitcoin/trunk@132 1a98c847-1fd6-4fd8-948a-caf3550aa51b
2010-08-15 21:35:24 +00:00
parent 4bd188c438
commit d4c6b90ca3
3 changed files with 19 additions and 2 deletions
--- a/main.cpp
+++ b/main.cpp
@@ -1006,6 +1006,14 @@ bool CTransaction::ConnectInputs(CTxDB& txdb, map<uint256, CTxIndex>& mapTestPoo
                mapTestPool[prevout.hash] = txindex;

            nValueIn += txPrev.vout[prevout.n].nValue;
+
+            // Check for negative or overflow input values
+            if (txPrev.vout[prevout.n].nValue < 0)
+                return error("ConnectInputs() : txin.nValue negative");
+            if (txPrev.vout[prevout.n].nValue > MAX_MONEY)
+                return error("ConnectInputs() : txin.nValue too high");
+            if (nValueIn > MAX_MONEY)
+                return error("ConnectInputs() : txin total too high");
        }

        // Tally transaction fees