// Copyright (c) 2009-2010 Satoshi Nakamoto // Copyright (c) 2009-2016 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #ifndef BITCOIN_SCRIPT_STANDARD_H #define BITCOIN_SCRIPT_STANDARD_H #include "script/interpreter.h" #include "uint256.h" #include #include static const bool DEFAULT_ACCEPT_DATACARRIER = true; class CKeyID; class CScript; /** A reference to a CScript: the Hash160 of its serialization (see script.h) */ class CScriptID : public uint160 { public: CScriptID() : uint160() {} CScriptID(const CScript& in); CScriptID(const uint160& in) : uint160(in) {} }; static const unsigned int MAX_OP_RETURN_RELAY = 83; //!< bytes (+1 for OP_RETURN, +2 for the pushdata opcodes) extern bool fAcceptDatacarrier; extern unsigned nMaxDatacarrierBytes; /** * Mandatory script verification flags that all new blocks must comply with for * them to be valid. (but old blocks may not comply with) Currently just P2SH, * but in the future other flags may be added, such as a soft-fork to enforce * strict DER encoding. * * Failing one of these tests may trigger a DoS ban - see CheckInputs() for * details. */ static const unsigned int MANDATORY_SCRIPT_VERIFY_FLAGS = SCRIPT_VERIFY_P2SH; enum txnouttype { TX_NONSTANDARD, // 'standard' transaction types: TX_PUBKEY, TX_PUBKEYHASH, TX_SCRIPTHASH, TX_MULTISIG, TX_NULL_DATA, TX_WITNESS_V0_SCRIPTHASH, TX_WITNESS_V0_KEYHASH, }; class CNoDestination { public: friend bool operator==(const CNoDestination &a, const CNoDestination &b) { return true; } friend bool operator<(const CNoDestination &a, const CNoDestination &b) { return true; } }; /** * A txout script template with a specific destination. It is either: * * CNoDestination: no destination set * * CKeyID: TX_PUBKEYHASH destination * * CScriptID: TX_SCRIPTHASH destination * A CTxDestination is the internal data type encoded in a CBitcoinAddress */ typedef boost::variant CTxDestination; const char* GetTxnOutputType(txnouttype t); bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector >& vSolutionsRet); bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet); bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector& addressRet, int& nRequiredRet); CScript GetScriptForDestination(const CTxDestination& dest); CScript GetScriptForRawPubKey(const CPubKey& pubkey); CScript GetScriptForMultisig(int nRequired, const std::vector& keys); CScript GetScriptForWitness(const CScript& redeemscript); #endif // BITCOIN_SCRIPT_STANDARD_H