Hush Full Node software. We were censored from Github, this is where all development happens now.
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177 lines
7.0 KiB
177 lines
7.0 KiB
// 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 GPLv3 software license, see the accompanying
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// file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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/******************************************************************************
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* Copyright © 2014-2019 The SuperNET Developers. *
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* *
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* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
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* the top-level directory of this distribution for the individual copyright *
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* holder information and the developer policies on copyright and licensing. *
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* *
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* Unless otherwise agreed in a custom licensing agreement, no part of the *
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* SuperNET software, including this file may be copied, modified, propagated *
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* or distributed except according to the terms contained in the LICENSE file *
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* *
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* Removal or modification of this copyright notice is prohibited. *
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* *
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******************************************************************************/
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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 = 8192; //! 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.
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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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/**
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* Standard script verification flags that standard transactions will comply
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* with. However scripts violating these flags may still be present in valid
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* blocks and we must accept those blocks.
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*/
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static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS |
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// SCRIPT_VERIFY_DERSIG is always enforced
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SCRIPT_VERIFY_STRICTENC |
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SCRIPT_VERIFY_MINIMALDATA |
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SCRIPT_VERIFY_NULLDUMMY |
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SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS |
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SCRIPT_VERIFY_CLEANSTACK |
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SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY |
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SCRIPT_VERIFY_LOW_S;
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/** For convenience, standard but not mandatory verify flags. */
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static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS;
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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_CRYPTOCONDITION,
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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 bitcoin address
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*/
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typedef boost::variant<CNoDestination, CPubKey, CKeyID, CScriptID> CTxDestination;
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class COptCCParams
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{
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public:
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static const uint8_t VERSION = 1;
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uint8_t version;
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uint8_t evalCode;
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uint8_t m, n; // for m of n sigs required, n pub keys for sigs will follow
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std::vector<CPubKey> vKeys; // n public keys to aid in signing
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std::vector<std::vector<unsigned char>> vData; // extra parameters
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COptCCParams() : version(0), evalCode(0), n(0), m(0) {}
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COptCCParams(uint8_t ver, uint8_t code, uint8_t _n, uint8_t _m, std::vector<CPubKey> &vkeys, std::vector<std::vector<unsigned char>> &vdata) :
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version(ver), evalCode(code), n(_n), m(_m), vKeys(vkeys), vData(vdata) {}
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COptCCParams(std::vector<unsigned char> &vch);
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bool IsValid() { return version != 0; }
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std::vector<unsigned char> AsVector();
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};
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class CStakeParams
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{
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public:
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static const uint32_t STAKE_MINPARAMS = 4;
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static const uint32_t STAKE_MAXPARAMS = 5;
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uint32_t srcHeight;
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uint32_t blkHeight;
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uint256 prevHash;
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CPubKey pk;
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CStakeParams() : srcHeight(0), blkHeight(0), prevHash(), pk() {}
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CStakeParams(const std::vector<std::vector<unsigned char>> &vData);
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CStakeParams(uint32_t _srcHeight, uint32_t _blkHeight, const uint256 &_prevHash, const CPubKey &_pk) :
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srcHeight(_srcHeight), blkHeight(_blkHeight), prevHash(_prevHash), pk(_pk) {}
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std::vector<unsigned char> AsVector()
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{
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std::vector<unsigned char> ret;
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CScript scr = CScript();
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scr << OPRETTYPE_STAKEPARAMS;
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scr << srcHeight;
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scr << blkHeight;
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scr << std::vector<unsigned char>(prevHash.begin(), prevHash.end());
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if (pk.IsValid())
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{
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scr << std::vector<unsigned char>(pk.begin(), pk.end());
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}
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ret = std::vector<unsigned char>(scr.begin(), scr.end());
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return ret;
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}
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bool IsValid() { return srcHeight != 0; }
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};
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/** Check whether a CTxDestination is a CNoDestination. */
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bool IsValidDestination(const CTxDestination& dest);
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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 IsStandard(const CScript& scriptPubKey, txnouttype& whichType);
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bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet, bool returnPubKey=false);
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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 GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys);
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#endif // BITCOIN_SCRIPT_STANDARD_H
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