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80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_SCRIPT_STANDARD_H
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#define BITCOIN_SCRIPT_STANDARD_H
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#include "script/interpreter.h"
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#include "uint256.h"
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#include <boost/variant.hpp>
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#include <stdint.h>
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class CKeyID;
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class CScript;
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/** A reference to a CScript: the Hash160 of its serialization (see script.h) */
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class CScriptID : public uint160
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{
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public:
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CScriptID() : uint160() {}
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CScriptID(const CScript& in);
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CScriptID(const uint160& in) : uint160(in) {}
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};
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static const unsigned int MAX_OP_RETURN_RELAY = 80; //! bytes
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extern unsigned nMaxDatacarrierBytes;
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/**
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* Mandatory script verification flags that all new blocks must comply with for
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* them to be valid. (but old blocks may not comply with) Currently just P2SH,
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* but in the future other flags may be added, such as a soft-fork to enforce
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* strict DER encoding.
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*
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* Failing one of these tests may trigger a DoS ban - see CheckInputs() for
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* details.
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*/
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static const unsigned int MANDATORY_SCRIPT_VERIFY_FLAGS = SCRIPT_VERIFY_P2SH;
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enum txnouttype
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{
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TX_NONSTANDARD,
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// 'standard' transaction types:
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TX_PUBKEY,
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TX_PUBKEYHASH,
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TX_SCRIPTHASH,
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TX_MULTISIG,
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TX_NULL_DATA,
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};
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class CNoDestination {
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public:
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friend bool operator==(const CNoDestination &a, const CNoDestination &b) { return true; }
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friend bool operator<(const CNoDestination &a, const CNoDestination &b) { return true; }
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};
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/**
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* A txout script template with a specific destination. It is either:
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* * CNoDestination: no destination set
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* * CKeyID: TX_PUBKEYHASH destination
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* * CScriptID: TX_SCRIPTHASH destination
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* A CTxDestination is the internal data type encoded in a CBitcoinAddress
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*/
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typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination;
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const char* GetTxnOutputType(txnouttype t);
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bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet);
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int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions);
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bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet);
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bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<CTxDestination>& addressRet, int& nRequiredRet);
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CScript GetScriptForDestination(const CTxDestination& dest);
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CScript GetScriptForRawPubKey(const CPubKey& pubkey);
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CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys);
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#endif // BITCOIN_SCRIPT_STANDARD_H
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