static void CheckCreateInt(const int64_t& num)
{
CBigNum bignum(num);
CScriptNum scriptnum(num);
BOOST_CHECK(verify(bignum, scriptnum));
BOOST_CHECK(verify(bignum.getint(), CScriptNum(scriptnum.getint())));
BOOST_CHECK(verify(scriptnum.getint(), CScriptNum(bignum.getint())));
BOOST_CHECK(verify(CBigNum(scriptnum.getint()).getint(), CScriptNum(CScriptNum(bignum.getint()).getint())));
}
// FIXME: Dedup with BuildCreditingTransaction in test/script_tests.cpp.
static CMutableTransaction BuildCreditingTransaction(const CScript& scriptPubKey)
{
CMutableTransaction txCredit;
txCredit.nVersion = 1;
txCredit.nLockTime = 0;
txCredit.vin.resize(1);
txCredit.vout.resize(1);
txCredit.vin[0].prevout.SetNull();
txCredit.vin[0].scriptSig = CScript() << CScriptNum(0) << CScriptNum(0);
txCredit.vin[0].nSequence = CTxIn::SEQUENCE_FINAL;
txCredit.vout[0].scriptPubKey = scriptPubKey;
txCredit.vout[0].nValue = 1;
return txCredit;
}
/**
* Build genesis block for testnet. In Namecoin, it has a changed timestamp
* and output script (it uses Bitcoin's).
*/
static CBlock CreateTestnetGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
const CScript genesisInputScript = CScript() << 0x1d00ffff << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
return CreateGenesisBlock(genesisInputScript, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
//static
CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion,
const CAmount& genesisReward, int nNetworkId)
{
CMutableTransaction txNew;
txNew.nVersion = 1;
txNew.vin.resize(1);
txNew.vout.resize(1);
txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
txNew.vout[0].nValue = genesisReward;
txNew.vout[0].scriptPubKey = genesisOutputScript;
CBlock genesis;
genesis.nTime = nTime;
genesis.nBits = nBits;
genesis.nVersion = nVersion;
genesis.vtx.push_back(txNew);
genesis.hashPrevBlock.SetNull();
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
genesis.sGRCAddress = "";
for (int i = nNonce; i < 99999999; i++)
{
genesis.nNonce = i;
arith_uint256 hashTarget = arith_uint256().SetCompact(genesis.nBits);
if (UintToArith256(genesis.GetHash()) <= hashTarget) break;
}
printf("NetworkID %f, Nonce %f, Genesis hash %s , MerkleRoot %s \n",(double)nNetworkId,(double)genesis.nNonce,genesis.GetHash().GetHex().c_str(),
genesis.hashMerkleRoot.GetHex().c_str());
return genesis;
}
/**
* Build the genesis block. Note that the output of its generation
* transaction cannot be spent since it did not originally exist in the
* database.
*/
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
const char* pszTimestamp = "... choose what comes next. Lives of your own, or a return to chains. -- V";
const CScript genesisInputScript = CScript() << 0x1c007fff << CScriptNum(522) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
const CScript genesisOutputScript = CScript() << ParseHex("04b620369050cd899ffbbc4e8ee51e8c4534a855bb463439d63d235d4779685d8b6f4870a238cf365ac94fa13ef9a2a22cd99d0d5ee86dcabcafce36c7acf43ce5") << OP_CHECKSIG;
return CreateGenesisBlock(genesisInputScript, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
CMutableTransaction txNew;
txNew.nVersion = 1;
txNew.vin.resize(1);
txNew.vout.resize(1);
txNew.vin[0].scriptSig = CScript() << CScriptNum(0) << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
txNew.vout[0].nValue = genesisReward;
txNew.vout[0].scriptPubKey = genesisOutputScript;
CBlock genesis;
genesis.nTime = nTime;
genesis.nBits = nBits;
genesis.nNonce = nNonce;
genesis.nVersion = nVersion;
genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
genesis.hashPrevBlock.SetNull();
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
return genesis;
}
/**
* Create the assembly string representation of a CScript object.
* @param[in] script CScript object to convert into the asm string representation.
* @param[in] fAttemptSighashDecode Whether to attempt to decode sighash types on data within the script that matches the format
* of a signature. Only pass true for scripts you believe could contain signatures. For example,
* pass false, or omit the this argument (defaults to false), for scriptPubKeys.
*/
std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode)
{
std::string str;
opcodetype opcode;
std::vector<unsigned char> vch;
CScript::const_iterator pc = script.begin();
while (pc < script.end()) {
if (!str.empty()) {
str += " ";
}
if (!script.GetOp(pc, opcode, vch)) {
str += "[error]";
return str;
}
if (0 <= opcode && opcode <= OP_PUSHDATA4) {
if (vch.size() <= static_cast<std::vector<unsigned char>::size_type>(4)) {
str += strprintf("%d", CScriptNum(vch, false).getint());
} else {
// the IsUnspendable check makes sure not to try to decode OP_RETURN data that may match the format of a signature
if (fAttemptSighashDecode && !script.IsUnspendable()) {
std::string strSigHashDecode;
// goal: only attempt to decode a defined sighash type from data that looks like a signature within a scriptSig.
// this won't decode correctly formatted public keys in Pubkey or Multisig scripts due to
// the restrictions on the pubkey formats (see IsCompressedOrUncompressedPubKey) being incongruous with the
// checks in CheckSignatureEncoding.
uint32_t flags = SCRIPT_VERIFY_STRICTENC;
if (vch.back() & SIGHASH_FORKID) {
// If the transaction is using SIGHASH_FORKID, we need
// to set the apropriate flag.
// TODO: Remove after the Hard Fork.
flags |= SCRIPT_ENABLE_SIGHASH_FORKID;
}
if (CheckSignatureEncoding(vch, flags, NULL)) {
const uint8_t chSigHashType = vch.back() & 0xBF;
if (mapSigHashTypes.count(chSigHashType)) {
const bool forkIdSet = (vch.back() & SIGHASH_FORKID) == SIGHASH_FORKID;
strSigHashDecode = "[" + mapSigHashTypes.find(chSigHashType)->second
+ (forkIdSet ? "|FORKID]" : "]");
vch.pop_back(); // remove the sighash type byte. it will be replaced by the decode.
}
}
str += HexStr(vch) + strSigHashDecode;
} else {
str += HexStr(vch);
}
}
} else {
str += GetOpName(opcode);
}
}
return str;
}
void IncrementExtraNonce(CBlock* pblock, const CBlockIndex* pindexPrev, unsigned int& nExtraNonce)
{
// Update nExtraNonce
static uint256 hashPrevBlock;
if (hashPrevBlock != pblock->hashPrevBlock)
{
nExtraNonce = 0;
hashPrevBlock = pblock->hashPrevBlock;
}
++nExtraNonce;
unsigned int nHeight = pindexPrev->nHeight+1; // Height first in coinbase required for block.version=2
CMutableTransaction txCoinbase(*pblock->vtx[0]);
txCoinbase.vin[0].scriptSig = (CScript() << nHeight << CScriptNum(nExtraNonce)) + COINBASE_FLAGS;
assert(txCoinbase.vin[0].scriptSig.size() <= 100);
pblock->vtx[0] = MakeTransactionRef(std::move(txCoinbase));
pblock->hashMerkleRoot = BlockMerkleRoot(*pblock);
}
/**
* Create the assembly string representation of a CScript object.
* @param[in] script CScript object to convert into the asm string representation.
* @param[in] fAttemptSighashDecode Whether to attempt to decode sighash types on data within the script that matches the format
* of a signature. Only pass true for scripts you believe could contain signatures. For example,
* pass false, or omit the this argument (defaults to false), for scriptPubKeys.
*/
std::string ScriptToAsmStr(const CScript& script, const bool fAttemptSighashDecode)
{
std::string str;
opcodetype opcode;
std::vector<unsigned char> vch;
CScript::const_iterator pc = script.begin();
while (pc < script.end()) {
if (!str.empty()) {
str += " ";
}
if (!script.GetOp(pc, opcode, vch)) {
str += "[error]";
return str;
}
if (0 <= opcode && opcode <= OP_PUSHDATA4) {
if (vch.size() <= static_cast<std::vector<unsigned char>::size_type>(4)) {
str += strprintf("%d", CScriptNum(vch, false).getint());
} else {
// the IsUnspendable check makes sure not to try to decode OP_RETURN data that may match the format of a signature
if (fAttemptSighashDecode && !script.IsUnspendable()) {
std::string strSigHashDecode;
// goal: only attempt to decode a defined sighash type from data that looks like a signature within a scriptSig.
// this won't decode correctly formatted public keys in Pubkey or Multisig scripts due to
// the restrictions on the pubkey formats (see IsCompressedOrUncompressedPubKey) being incongruous with the
// checks in CheckSignatureEncoding.
if (CheckSignatureEncoding(vch, SCRIPT_VERIFY_STRICTENC | SCRIPT_ALLOW_NON_FORKID, nullptr)) {
const unsigned char chSigHashType = vch.back();
if (mapSigHashTypes.count(chSigHashType)) {
strSigHashDecode = "[" + mapSigHashTypes.find(chSigHashType)->second + "]";
vch.pop_back(); // remove the sighash type byte. it will be replaced by the decode.
}
}
str += HexStr(vch) + strSigHashDecode;
} else {
str += HexStr(vch);
}
}
} else {
str += GetOpName(opcode);
}
}
return str;
}
