highperfocused/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2026-01-19 23:03:45 +01:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #2738 from jgarzik/op_return

Browse Source 
Relay OP_RETURN data TxOut as standard transaction type.
This commit is contained in:
Gavin Andresen
2013-10-21 22:47:24 -07:00
parent 10dc3c7473 a79342479f
commit be484db274
5 changed files with 56 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/script.cpp
View File

@@ -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);