diff options
Diffstat (limited to 'src/script.cpp')
| -rw-r--r-- | src/script.cpp | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/script.cpp b/src/script.cpp index 4e4e95a678..63f632795a 100644 --- a/src/script.cpp +++ b/src/script.cpp @@ -79,6 +79,7 @@ const char* GetTxnOutputType(txnouttype t) case TX_PUBKEYHASH: return "pubkeyhash"; case TX_SCRIPTHASH: return "scripthash"; case TX_MULTISIG: return "multisig"; + case TX_NULL_DATA: return "nulldata"; } return NULL; } @@ -220,6 +221,7 @@ const char* GetOpName(opcodetype opcode) // template matching params case OP_PUBKEYHASH : return "OP_PUBKEYHASH"; case OP_PUBKEY : return "OP_PUBKEY"; + case OP_SMALLDATA : return "OP_SMALLDATA"; case OP_INVALIDOPCODE : return "OP_INVALIDOPCODE"; default: @@ -1204,6 +1206,9 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi // Sender provides N pubkeys, receivers provides M signatures mTemplates.insert(make_pair(TX_MULTISIG, CScript() << OP_SMALLINTEGER << OP_PUBKEYS << OP_SMALLINTEGER << OP_CHECKMULTISIG)); + + // Empty, provably prunable, data-carrying output + mTemplates.insert(make_pair(TX_NULL_DATA, CScript() << OP_RETURN << OP_SMALLDATA)); } // Shortcut for pay-to-script-hash, which are more constrained than the other types: @@ -1288,6 +1293,12 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, vector<vector<unsi else break; } + else if (opcode2 == OP_SMALLDATA) + { + // small pushdata, <= 80 bytes + if (vch1.size() > 80) + break; + } else if (opcode1 != opcode2 || vch1 != vch2) { // Others must match exactly @@ -1350,6 +1361,7 @@ bool Solver(const CKeyStore& keystore, const CScript& scriptPubKey, uint256 hash switch (whichTypeRet) { case TX_NONSTANDARD: + case TX_NULL_DATA: return false; case TX_PUBKEY: keyID = CPubKey(vSolutions[0]).GetID(); @@ -1381,6 +1393,8 @@ int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned c { case TX_NONSTANDARD: return -1; + case TX_NULL_DATA: + return 1; case TX_PUBKEY: return 1; case TX_PUBKEYHASH: @@ -1395,10 +1409,9 @@ int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned c return -1; } -bool IsStandard(const CScript& scriptPubKey) +bool IsStandard(const CScript& scriptPubKey, txnouttype& whichType) { vector<valtype> vSolutions; - txnouttype whichType; if (!Solver(scriptPubKey, whichType, vSolutions)) return false; @@ -1457,6 +1470,7 @@ bool IsMine(const CKeyStore &keystore, const CScript& scriptPubKey) switch (whichType) { case TX_NONSTANDARD: + case TX_NULL_DATA: return false; case TX_PUBKEY: keyID = CPubKey(vSolutions[0]).GetID(); @@ -1518,6 +1532,8 @@ 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_MULTISIG) { @@ -1733,6 +1749,7 @@ static CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, switch (txType) { case TX_NONSTANDARD: + case TX_NULL_DATA: // Don't know anything about this, assume bigger one is correct: if (sigs1.size() >= sigs2.size()) return PushAll(sigs1); |