77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2014 The Bitcoin Core developers
|
|
// Copyright (c) 2018 The Verus developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include "script_ext.h"
|
|
|
|
using namespace std;
|
|
|
|
bool CScriptExt::IsPayToScriptHash(CScriptID *scriptID) const
|
|
{
|
|
if (((CScript *)this)->IsPayToScriptHash())
|
|
{
|
|
*scriptID = CScriptID(uint160(std::vector<unsigned char>(this->begin() + 2, this->end() - 1)));
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// P2PKH script, adds to whatever is already in the script (for example CLTV)
|
|
const CScriptExt &CScriptExt::AddPayToPubKeyHash(const CKeyID &key) const
|
|
{
|
|
*((CScript *)this) << OP_DUP;
|
|
*((CScript *)this) << OP_HASH160;
|
|
*((CScript *)this) << ToByteVector(key);
|
|
*((CScript *)this) << OP_EQUALVERIFY;
|
|
*((CScript *)this) << OP_CHECKSIG;
|
|
return *this;
|
|
}
|
|
|
|
// push data into an op_return script with an opret type indicator, fails if the op_return is too large
|
|
const CScriptExt &CScriptExt::OpReturnScript(const vector<unsigned char> &data, unsigned char opretType) const
|
|
{
|
|
((CScript *)this)->clear();
|
|
if (data.size() < MAX_SCRIPT_ELEMENT_SIZE)
|
|
{
|
|
vector<unsigned char> scratch = vector<unsigned char>(data);
|
|
scratch.insert(scratch.begin(), opretType);
|
|
*((CScript *)this) << OP_RETURN;
|
|
*((CScript *)this) << scratch;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
// P2SH script, adds to whatever is already in the script (for example CLTV)
|
|
const CScriptExt &CScriptExt::PayToScriptHash(const CScriptID &scriptID) const
|
|
{
|
|
((CScript *)this)->clear();
|
|
*((CScript *)this) << OP_HASH160;
|
|
*((CScript *)this) << ToByteVector(scriptID);
|
|
*((CScript *)this) << OP_EQUAL;
|
|
return *this;
|
|
}
|
|
|
|
// P2SH script, adds to whatever is already in the script (for example CLTV)
|
|
const CScriptExt &CScriptExt::AddCheckLockTimeVerify(int64_t unlocktime) const
|
|
{
|
|
if (unlocktime > 0)
|
|
{
|
|
*((CScript *)this) << CScriptNum::serialize(unlocktime);
|
|
*((CScript *)this) << OP_CHECKLOCKTIMEVERIFY;
|
|
*((CScript *)this) << OP_DROP;
|
|
return *this;
|
|
}
|
|
}
|
|
|
|
// combined CLTV script and P2PKH
|
|
const CScriptExt &CScriptExt::TimeLockSpend(const CKeyID &key, int64_t unlocktime) const
|
|
{
|
|
((CScript *)this)->clear();
|
|
this->AddCheckLockTimeVerify(unlocktime);
|
|
this->AddPayToPubKeyHash(key);
|
|
return *this;
|
|
}
|
|
|