From 22de68dffc1e94c5b06b7e512140c42290cb4f5d Mon Sep 17 00:00:00 2001
From: Peter Todd <pete@petertodd.org>
Date: Thu, 24 Oct 2013 04:32:35 -0400
Subject: Relay OP_RETURN TxOut as standard transaction type

Also fix decoderawtransaction to not show reqSigs or addresses for
nulldata txouts. (Previous version also left reqSigs uninitialized
mistakenly)
---
 src/script.cpp | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'src/script.cpp')

diff --git a/src/script.cpp b/src/script.cpp
index 63f632795..ec9e9d61d 100644
--- a/src/script.cpp
+++ b/src/script.cpp
@@ -1195,7 +1195,7 @@ bool CheckSig(vector<unsigned char> vchSig, const vector<unsigned char> &vchPubK
 bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsigned char> >& vSolutionsRet)
 {
     // Templates
-    static map<txnouttype, CScript> mTemplates;
+    static multimap<txnouttype, CScript> mTemplates;
     if (mTemplates.empty())
     {
         // Standard tx, sender provides pubkey, receiver adds signature
@@ -1209,6 +1209,7 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi
 
         // Empty, provably prunable, data-carrying output
         mTemplates.insert(make_pair(TX_NULL_DATA, CScript() << OP_RETURN << OP_SMALLDATA));
+        mTemplates.insert(make_pair(TX_NULL_DATA, CScript() << OP_RETURN));
     }
 
     // Shortcut for pay-to-script-hash, which are more constrained than the other types:
@@ -1392,9 +1393,8 @@ int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned c
     switch (t)
     {
     case TX_NONSTANDARD:
-        return -1;
     case TX_NULL_DATA:
-        return 1;
+        return -1;
     case TX_PUBKEY:
         return 1;
     case TX_PUBKEYHASH:
@@ -1532,8 +1532,10 @@ bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, vecto
     vector<valtype> vSolutions;
     if (!Solver(scriptPubKey, typeRet, vSolutions))
         return false;
-    if (typeRet == TX_NULL_DATA)
-        return true;
+    if (typeRet == TX_NULL_DATA){
+        // This is data, not addresses
+        return false;
+    }
 
     if (typeRet == TX_MULTISIG)
     {
-- 
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