#include "keystore.h"
#include "bignum.h"
-typedef std::vector<unsigned char> valtype;
+typedef std::vector<uint8_t> valtype;
class CTransaction;
static const unsigned int MAX_SCRIPT_ELEMENT_SIZE = 520; // bytes
+/* Setting nSequence to this value for every input in a transaction
+ * disables nLockTime. */
+static const uint32_t SEQUENCE_FINAL = 0xffffffff;
+
+/* Threshold for inverted nSequence: below this value it is interpreted
+ * as a relative lock-time, otherwise ignored. */
+static const uint32_t SEQUENCE_THRESHOLD = (1 << 31);
+
+/* If this flag set, CTxIn::nSequence is NOT interpreted as a
+ * relative lock-time. */
+static const uint32_t SEQUENCE_LOCKTIME_DISABLE_FLAG = (1 << 31);
+
+/* If CTxIn::nSequence encodes a relative lock-time and this flag
+ * is set, the relative lock-time has units of 512 seconds,
+ * otherwise it specifies blocks with a granularity of 1. */
+static const uint32_t SEQUENCE_LOCKTIME_TYPE_FLAG = (1 << 22);
+
+/* If CTxIn::nSequence encodes a relative lock-time, this mask is
+ * applied to extract that lock-time from the sequence field. */
+static const uint32_t SEQUENCE_LOCKTIME_MASK = 0x0000ffff;
+
/** IsMine() return codes */
enum isminetype
{
SIGHASH_ALL = 1,
SIGHASH_NONE = 2,
SIGHASH_SINGLE = 3,
- SIGHASH_ANYONECANPAY = 0x80,
+ SIGHASH_ANYONECANPAY = 0x80
};
/** Script verification flags */
SCRIPT_VERIFY_STRICTENC = (1U << 1), // enforce strict conformance to DER and SEC2 for signatures and pubkeys
SCRIPT_VERIFY_LOW_S = (1U << 2), // enforce low S values in signatures (depends on STRICTENC)
SCRIPT_VERIFY_NOCACHE = (1U << 3), // do not store results in signature cache (but do query it)
- SCRIPT_VERIFY_NULLDUMMY = (1U << 4), // verify dummy stack item consumed by CHECKMULTISIG is of zero-length
+ SCRIPT_VERIFY_NULLDUMMY = (1U << 4), // verify dummy stack item consumed by CHECKMULTISIG is of zero-length
+ SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9),
+ SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10)
};
// Strict verification:
// blocks and we must accept those blocks.
static const unsigned int STRICT_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS | STRICT_FORMAT_FLAGS;
-// Soft verifications, no extended signature format checkings
-static const unsigned int SOFT_FLAGS = STRICT_FLAGS & ~STRICT_FORMAT_FLAGS;
-
enum txnouttype
{
TX_NONSTANDARD,
// 'standard' transaction types:
TX_PUBKEY,
+ TX_PUBKEY_DROP,
TX_PUBKEYHASH,
TX_SCRIPTHASH,
TX_MULTISIG,
- TX_NULL_DATA,
+ TX_NULL_DATA
};
const char* GetTxnOutputType(txnouttype t);
OP_ENDIF = 0x68,
OP_VERIFY = 0x69,
OP_RETURN = 0x6a,
+ OP_CHECKLOCKTIMEVERIFY = 0xb1,
+ OP_CHECKSEQUENCEVERIFY = 0xb2,
// stack ops
OP_TOALTSTACK = 0x6b,
// expansion
OP_NOP1 = 0xb0,
- OP_NOP2 = 0xb1,
- OP_NOP3 = 0xb2,
OP_NOP4 = 0xb3,
OP_NOP5 = 0xb4,
OP_NOP6 = 0xb5,
OP_NOP9 = 0xb8,
OP_NOP10 = 0xb9,
-
-
// template matching params
OP_SMALLDATA = 0xf9,
OP_SMALLINTEGER = 0xfa,
OP_PUBKEYS = 0xfb,
+ OP_INTEGER = 0xfc,
OP_PUBKEYHASH = 0xfd,
OP_PUBKEY = 0xfe,
- OP_INVALIDOPCODE = 0xff,
+ OP_INVALIDOPCODE = 0xff
};
const char* GetOpName(opcodetype opcode);
-
-
inline std::string ValueString(const std::vector<unsigned char>& vch)
{
if (vch.size() <= 4)
return str;
}
-
-
-
-
-
-
-
/** Serialized script, used inside transaction inputs and outputs */
-class CScript : public std::vector<unsigned char>
+class CScript : public std::vector<uint8_t>
{
protected:
CScript& push_int64(int64_t n)
{
if (n == -1 || (n >= 1 && n <= 16))
{
- push_back(n + (OP_1 - 1));
+ push_back((uint8_t)n + (OP_1 - 1));
}
else
{
{
if (n >= 1 && n <= 16)
{
- push_back(n + (OP_1 - 1));
+ push_back((uint8_t)n + (OP_1 - 1));
}
else
{
public:
CScript() { }
- CScript(const CScript& b) : std::vector<unsigned char>(b.begin(), b.end()) { }
- CScript(const_iterator pbegin, const_iterator pend) : std::vector<unsigned char>(pbegin, pend) { }
+ CScript(const CScript& b) : std::vector<uint8_t>(b.begin(), b.end()) { }
+ CScript(const_iterator pbegin, const_iterator pend) : std::vector<uint8_t>(pbegin, pend) { }
#ifndef _MSC_VER
- CScript(const unsigned char* pbegin, const unsigned char* pend) : std::vector<unsigned char>(pbegin, pend) { }
+ CScript(const uint8_t* pbegin, const uint8_t* pend) : std::vector<uint8_t>(pbegin, pend) { }
#endif
CScript& operator+=(const CScript& b)
explicit CScript(opcodetype b) { operator<<(b); }
explicit CScript(const uint256& b) { operator<<(b); }
explicit CScript(const CBigNum& b) { operator<<(b); }
- explicit CScript(const std::vector<unsigned char>& b) { operator<<(b); }
-
+ explicit CScript(const std::vector<uint8_t>& b) { operator<<(b); }
CScript& operator<<(int8_t b) { return push_int64(b); }
CScript& operator<<(int16_t b) { return push_int64(b); }
{
if (opcode < 0 || opcode > 0xff)
throw std::runtime_error("CScript::operator<<() : invalid opcode");
- insert(end(), (unsigned char)opcode);
+ insert(end(), (uint8_t)opcode);
return *this;
}
CScript& operator<<(const uint160& b)
{
insert(end(), sizeof(b));
- insert(end(), (unsigned char*)&b, (unsigned char*)&b + sizeof(b));
+ insert(end(), (uint8_t*)&b, (uint8_t*)&b + sizeof(b));
return *this;
}
CScript& operator<<(const uint256& b)
{
insert(end(), sizeof(b));
- insert(end(), (unsigned char*)&b, (unsigned char*)&b + sizeof(b));
+ insert(end(), (uint8_t*)&b, (uint8_t*)&b + sizeof(b));
return *this;
}
CScript& operator<<(const CPubKey& key)
{
- std::vector<unsigned char> vchKey = key.Raw();
+ std::vector<uint8_t> vchKey = key.Raw();
return (*this) << vchKey;
}
else if (b.size() <= 0xffff)
{
insert(end(), OP_PUSHDATA2);
- uint16_t nSize = b.size();
- insert(end(), (unsigned char*)&nSize, (unsigned char*)&nSize + sizeof(nSize));
+ uint16_t nSize = (uint16_t) b.size();
+ insert(end(), (uint8_t*)&nSize, (uint8_t*)&nSize + sizeof(nSize));
}
else
{
insert(end(), OP_PUSHDATA4);
- uint32_t nSize = b.size();
- insert(end(), (unsigned char*)&nSize, (unsigned char*)&nSize + sizeof(nSize));
+ uint32_t nSize = (uint32_t) b.size();
+ insert(end(), (uint8_t*)&nSize, (uint8_t*)&nSize + sizeof(nSize));
}
insert(end(), b.begin(), b.end());
return *this;
}
- bool GetOp(iterator& pc, opcodetype& opcodeRet, std::vector<unsigned char>& vchRet)
+ bool GetOp(iterator& pc, opcodetype& opcodeRet, std::vector<uint8_t>& vchRet)
{
// Wrapper so it can be called with either iterator or const_iterator
const_iterator pc2 = pc;
return fRet;
}
- bool GetOp(const_iterator& pc, opcodetype& opcodeRet, std::vector<unsigned char>& vchRet) const
+ bool GetOp(const_iterator& pc, opcodetype& opcodeRet, std::vector<uint8_t>& vchRet) const
{
return GetOp2(pc, opcodeRet, &vchRet);
}
return GetOp2(pc, opcodeRet, NULL);
}
- bool GetOp2(const_iterator& pc, opcodetype& opcodeRet, std::vector<unsigned char>* pvchRet) const
+ bool GetOp2(const_iterator& pc, opcodetype& opcodeRet, std::vector<uint8_t>* pvchRet) const
{
opcodeRet = OP_INVALIDOPCODE;
if (pvchRet)
// Read instruction
if (end() - pc < 1)
return false;
- unsigned int opcode = *pc++;
+ uint32_t opcode = *pc++;
// Immediate operand
if (opcode <= OP_PUSHDATA4)
{
- unsigned int nSize;
+ uint32_t nSize = OP_0;
if (opcode < OP_PUSHDATA1)
{
nSize = opcode;
{
if (end() - pc < 2)
return false;
- nSize = 0;
memcpy(&nSize, &pc[0], 2);
pc += 2;
}
memcpy(&nSize, &pc[0], 4);
pc += 4;
}
- if (end() - pc < 0 || (unsigned int)(end() - pc) < nSize)
+ if (end() - pc < 0 || (uint32_t)(end() - pc) < nSize)
return false;
if (pvchRet)
pvchRet->assign(pc, pc + nSize);
if (opcode == OP_0)
return 0;
assert(opcode >= OP_1 && opcode <= OP_16);
- return (int)opcode - (int)(OP_1 - 1);
+ return (opcode - (OP_1 - 1));
}
static opcodetype EncodeOP_N(int n)
{
bool IsPayToScriptHash() const;
- // Called by CTransaction::IsStandard and P2SH VerifyScript (which makes it consensus-critical).
- bool IsPushOnly() const
+ bool IsPushOnly(const_iterator pc) const
{
- const_iterator pc = begin();
while (pc < end())
{
opcodetype opcode;
return true;
}
+ // Called by CTransaction::IsStandard and P2SH VerifyScript (which makes it consensus-critical).
+ bool IsPushOnly() const
+ {
+ return this->IsPushOnly(begin());
+ }
+
// Called by CTransaction::IsStandard.
bool HasCanonicalPushes() const;
void SetDestination(const CTxDestination& address);
+ void SetDestination(const CPubKey& R, CPubKey& pubKeyVariant);
void SetMultisig(int nRequired, const std::vector<CKey>& keys);
{
std::string str;
opcodetype opcode;
- std::vector<unsigned char> vch;
+ std::vector<uint8_t> vch;
const_iterator pc = begin();
while (pc < end())
{
};
bool IsCanonicalPubKey(const std::vector<unsigned char> &vchPubKey, unsigned int flags);
+bool IsDERSignature(const valtype &vchSig, bool fWithHashType=false, bool fCheckLow=false);
bool IsCanonicalSignature(const std::vector<unsigned char> &vchSig, unsigned int flags);
-
bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, const CTransaction& txTo, unsigned int nIn, unsigned int flags, int nHashType);
bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet);
int ScriptSigArgsExpected(txnouttype t, const std::vector<std::vector<unsigned char> >& vSolutions);
// Given two sets of signatures for scriptPubKey, possibly with OP_0 placeholders,
// combine them intelligently and return the result.
-CScript CombineSignatures(CScript scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2);
+CScript CombineSignatures(const CScript& scriptPubKey, const CTransaction& txTo, unsigned int nIn, const CScript& scriptSig1, const CScript& scriptSig2);
#endif