// Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2009-2012 The Bitcoin developers
// Distributed under the MIT/X11 software license, see the accompanying
-// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef H_BITCOIN_SCRIPT
#define H_BITCOIN_SCRIPT
-#include <stdint.h>
-
#include "base58.h"
#include <string>
class CTransaction;
class CKeyStore;
+/** Signature hash types/flags */
enum
{
SIGHASH_ALL = 1,
const char* GetTxnOutputType(txnouttype t);
+/** Script opcodes */
enum opcodetype
{
// push value
- OP_0=0,
- OP_FALSE=OP_0,
- OP_PUSHDATA1=76,
- OP_PUSHDATA2,
- OP_PUSHDATA4,
- OP_1NEGATE,
- OP_RESERVED,
- OP_1,
+ OP_0 = 0x00,
+ OP_FALSE = OP_0,
+ OP_PUSHDATA1 = 0x4c,
+ OP_PUSHDATA2 = 0x4d,
+ OP_PUSHDATA4 = 0x4e,
+ OP_1NEGATE = 0x4f,
+ OP_RESERVED = 0x50,
+ OP_1 = 0x51,
OP_TRUE=OP_1,
- OP_2,
- OP_3,
- OP_4,
- OP_5,
- OP_6,
- OP_7,
- OP_8,
- OP_9,
- OP_10,
- OP_11,
- OP_12,
- OP_13,
- OP_14,
- OP_15,
- OP_16,
+ OP_2 = 0x52,
+ OP_3 = 0x53,
+ OP_4 = 0x54,
+ OP_5 = 0x55,
+ OP_6 = 0x56,
+ OP_7 = 0x57,
+ OP_8 = 0x58,
+ OP_9 = 0x59,
+ OP_10 = 0x5a,
+ OP_11 = 0x5b,
+ OP_12 = 0x5c,
+ OP_13 = 0x5d,
+ OP_14 = 0x5e,
+ OP_15 = 0x5f,
+ OP_16 = 0x60,
// control
- OP_NOP,
- OP_VER,
- OP_IF,
- OP_NOTIF,
- OP_VERIF,
- OP_VERNOTIF,
- OP_ELSE,
- OP_ENDIF,
- OP_VERIFY,
- OP_RETURN,
+ OP_NOP = 0x61,
+ OP_VER = 0x62,
+ OP_IF = 0x63,
+ OP_NOTIF = 0x64,
+ OP_VERIF = 0x65,
+ OP_VERNOTIF = 0x66,
+ OP_ELSE = 0x67,
+ OP_ENDIF = 0x68,
+ OP_VERIFY = 0x69,
+ OP_RETURN = 0x6a,
// stack ops
- OP_TOALTSTACK,
- OP_FROMALTSTACK,
- OP_2DROP,
- OP_2DUP,
- OP_3DUP,
- OP_2OVER,
- OP_2ROT,
- OP_2SWAP,
- OP_IFDUP,
- OP_DEPTH,
- OP_DROP,
- OP_DUP,
- OP_NIP,
- OP_OVER,
- OP_PICK,
- OP_ROLL,
- OP_ROT,
- OP_SWAP,
- OP_TUCK,
+ OP_TOALTSTACK = 0x6b,
+ OP_FROMALTSTACK = 0x6c,
+ OP_2DROP = 0x6d,
+ OP_2DUP = 0x6e,
+ OP_3DUP = 0x6f,
+ OP_2OVER = 0x70,
+ OP_2ROT = 0x71,
+ OP_2SWAP = 0x72,
+ OP_IFDUP = 0x73,
+ OP_DEPTH = 0x74,
+ OP_DROP = 0x75,
+ OP_DUP = 0x76,
+ OP_NIP = 0x77,
+ OP_OVER = 0x78,
+ OP_PICK = 0x79,
+ OP_ROLL = 0x7a,
+ OP_ROT = 0x7b,
+ OP_SWAP = 0x7c,
+ OP_TUCK = 0x7d,
// splice ops
- OP_CAT,
- OP_SUBSTR,
- OP_LEFT,
- OP_RIGHT,
- OP_SIZE,
+ OP_CAT = 0x7e,
+ OP_SUBSTR = 0x7f,
+ OP_LEFT = 0x80,
+ OP_RIGHT = 0x81,
+ OP_SIZE = 0x82,
// bit logic
- OP_INVERT,
- OP_AND,
- OP_OR,
- OP_XOR,
- OP_EQUAL,
- OP_EQUALVERIFY,
- OP_RESERVED1,
- OP_RESERVED2,
+ OP_INVERT = 0x83,
+ OP_AND = 0x84,
+ OP_OR = 0x85,
+ OP_XOR = 0x86,
+ OP_EQUAL = 0x87,
+ OP_EQUALVERIFY = 0x88,
+ OP_RESERVED1 = 0x89,
+ OP_RESERVED2 = 0x8a,
// numeric
- OP_1ADD,
- OP_1SUB,
- OP_2MUL,
- OP_2DIV,
- OP_NEGATE,
- OP_ABS,
- OP_NOT,
- OP_0NOTEQUAL,
-
- OP_ADD,
- OP_SUB,
- OP_MUL,
- OP_DIV,
- OP_MOD,
- OP_LSHIFT,
- OP_RSHIFT,
-
- OP_BOOLAND,
- OP_BOOLOR,
- OP_NUMEQUAL,
- OP_NUMEQUALVERIFY,
- OP_NUMNOTEQUAL,
- OP_LESSTHAN,
- OP_GREATERTHAN,
- OP_LESSTHANOREQUAL,
- OP_GREATERTHANOREQUAL,
- OP_MIN,
- OP_MAX,
-
- OP_WITHIN,
+ OP_1ADD = 0x8b,
+ OP_1SUB = 0x8c,
+ OP_2MUL = 0x8d,
+ OP_2DIV = 0x8e,
+ OP_NEGATE = 0x8f,
+ OP_ABS = 0x90,
+ OP_NOT = 0x91,
+ OP_0NOTEQUAL = 0x92,
+
+ OP_ADD = 0x93,
+ OP_SUB = 0x94,
+ OP_MUL = 0x95,
+ OP_DIV = 0x96,
+ OP_MOD = 0x97,
+ OP_LSHIFT = 0x98,
+ OP_RSHIFT = 0x99,
+
+ OP_BOOLAND = 0x9a,
+ OP_BOOLOR = 0x9b,
+ OP_NUMEQUAL = 0x9c,
+ OP_NUMEQUALVERIFY = 0x9d,
+ OP_NUMNOTEQUAL = 0x9e,
+ OP_LESSTHAN = 0x9f,
+ OP_GREATERTHAN = 0xa0,
+ OP_LESSTHANOREQUAL = 0xa1,
+ OP_GREATERTHANOREQUAL = 0xa2,
+ OP_MIN = 0xa3,
+ OP_MAX = 0xa4,
+
+ OP_WITHIN = 0xa5,
// crypto
- OP_RIPEMD160,
- OP_SHA1,
- OP_SHA256,
- OP_HASH160,
- OP_HASH256,
- OP_CODESEPARATOR,
- OP_CHECKSIG,
- OP_CHECKSIGVERIFY,
- OP_CHECKMULTISIG,
- OP_CHECKMULTISIGVERIFY,
-
- // meta
- OP_EVAL, // Was OP_NOP1
+ OP_RIPEMD160 = 0xa6,
+ OP_SHA1 = 0xa7,
+ OP_SHA256 = 0xa8,
+ OP_HASH160 = 0xa9,
+ OP_HASH256 = 0xaa,
+ OP_CODESEPARATOR = 0xab,
+ OP_CHECKSIG = 0xac,
+ OP_CHECKSIGVERIFY = 0xad,
+ OP_CHECKMULTISIG = 0xae,
+ OP_CHECKMULTISIGVERIFY = 0xaf,
// expansion
- OP_NOP2,
- OP_NOP3,
- OP_NOP4,
- OP_NOP5,
- OP_NOP6,
- OP_NOP7,
- OP_NOP8,
- OP_NOP9,
- OP_NOP10,
+ OP_NOP1 = 0xb0,
+ OP_NOP2 = 0xb1,
+ OP_NOP3 = 0xb2,
+ OP_NOP4 = 0xb3,
+ OP_NOP5 = 0xb4,
+ OP_NOP6 = 0xb5,
+ OP_NOP7 = 0xb6,
+ OP_NOP8 = 0xb7,
+ OP_NOP9 = 0xb8,
+ OP_NOP10 = 0xb9,
// template matching params
OP_SMALLINTEGER = 0xfa,
OP_PUBKEYS = 0xfb,
- OP_SCRIPTHASH = 0xfc,
OP_PUBKEYHASH = 0xfd,
OP_PUBKEY = 0xfe,
-
+/** Serialized script, used inside transaction inputs and outputs */
class CScript : public std::vector<unsigned char>
{
protected:
- CScript& push_int64(int64_t n)
+ CScript& push_int64(int64 n)
{
if (n == -1 || (n >= 1 && n <= 16))
{
return *this;
}
- CScript& push_uint64(uint64_t n)
+ CScript& push_uint64(uint64 n)
{
if (n >= 1 && n <= 16)
{
}
- explicit CScript(char b) { operator<<(b); }
+ //explicit CScript(char b) is not portable. Use 'signed char' or 'unsigned char'.
+ explicit CScript(signed char b) { operator<<(b); }
explicit CScript(short b) { operator<<(b); }
explicit CScript(int b) { operator<<(b); }
explicit CScript(long b) { operator<<(b); }
- explicit CScript(int64_t b) { operator<<(b); }
+ explicit CScript(int64 b) { operator<<(b); }
explicit CScript(unsigned char b) { operator<<(b); }
explicit CScript(unsigned int b) { operator<<(b); }
explicit CScript(unsigned short b) { operator<<(b); }
explicit CScript(unsigned long b) { operator<<(b); }
- explicit CScript(uint64_t b) { operator<<(b); }
+ explicit CScript(uint64 b) { operator<<(b); }
explicit CScript(opcodetype b) { operator<<(b); }
explicit CScript(const uint256& b) { operator<<(b); }
explicit CScript(const std::vector<unsigned char>& b) { operator<<(b); }
- CScript& operator<<(char b) { return push_int64(b); }
+ //CScript& operator<<(char b) is not portable. Use 'signed char' or 'unsigned char'.
+ CScript& operator<<(signed char b) { return push_int64(b); }
CScript& operator<<(short b) { return push_int64(b); }
CScript& operator<<(int b) { return push_int64(b); }
CScript& operator<<(long b) { return push_int64(b); }
- CScript& operator<<(int64_t b) { return push_int64(b); }
+ CScript& operator<<(int64 b) { return push_int64(b); }
CScript& operator<<(unsigned char b) { return push_uint64(b); }
CScript& operator<<(unsigned int b) { return push_uint64(b); }
CScript& operator<<(unsigned short b) { return push_uint64(b); }
CScript& operator<<(unsigned long b) { return push_uint64(b); }
- CScript& operator<<(uint64_t b) { return push_uint64(b); }
+ CScript& operator<<(uint64 b) { return push_uint64(b); }
CScript& operator<<(opcodetype opcode)
{
opcodetype opcode;
do
{
- while (end() - pc >= b.size() && memcmp(&pc[0], &b[0], b.size()) == 0)
+ while (end() - pc >= (long)b.size() && memcmp(&pc[0], &b[0], b.size()) == 0)
{
erase(pc, pc + b.size());
++nFound;
return nFound;
}
- // This method should be removed when a compatibility-breaking block chain split has passed.
- // Compatibility method for old clients that count sigops differently:
- int GetSigOpCount() const
- {
- int n = 0;
- const_iterator pc = begin();
- while (pc < end())
- {
- opcodetype opcode;
- if (!GetOp(pc, opcode))
- break;
- if (opcode == OP_CHECKSIG || opcode == OP_CHECKSIGVERIFY)
- n++;
- else if (opcode == OP_CHECKMULTISIG || opcode == OP_CHECKMULTISIGVERIFY)
- n += 20;
- }
- return n;
- }
+ // Pre-version-0.6, Bitcoin always counted CHECKMULTISIGs
+ // as 20 sigops. With pay-to-script-hash, that changed:
+ // CHECKMULTISIGs serialized in scriptSigs are
+ // counted more accurately, assuming they are of the form
+ // ... OP_N CHECKMULTISIG ...
+ unsigned int GetSigOpCount(bool fAccurate) const;
+
+ // Accurately count sigOps, including sigOps in
+ // pay-to-script-hash transactions:
+ unsigned int GetSigOpCount(const CScript& scriptSig) const;
+
+ bool IsPayToScriptHash() const;
// Called by CTransaction::IsStandard
bool IsPushOnly() const
SetBitcoinAddress(CBitcoinAddress(vchPubKey));
}
void SetMultisig(int nRequired, const std::vector<CKey>& keys);
- void SetEval(const CScript& subscript);
+ void SetPayToScriptHash(const CScript& subscript);
void PrintHex() const
-bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, const CTransaction& txTo, unsigned int nIn, int nHashType, bool fStrictOpEval, int& nSigOpCountRet);
-
+bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, const CTransaction& txTo, unsigned int nIn, 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);
bool IsStandard(const CScript& scriptPubKey);
bool IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
-bool ExtractAddress(const CScript& scriptPubKey, const CKeyStore* pkeystore, CBitcoinAddress& addressRet);
-bool ExtractAddresses(const CScript& scriptPubKey, const CKeyStore* pkeystore, txnouttype& typeRet, std::vector<CBitcoinAddress>& addressRet, int& nRequiredRet);
-bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL, CScript scriptPrereq=CScript());
-bool VerifySignature(const CTransaction& txFrom, const CTransaction& txTo, unsigned int nIn, int& nSigOpCountRet, int nHashType=0, bool fStrictOpEval=true);
+bool ExtractAddress(const CScript& scriptPubKey, CBitcoinAddress& addressRet);
+bool ExtractAddresses(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<CBitcoinAddress>& addressRet, int& nRequiredRet);
+bool SignSignature(const CKeyStore& keystore, const CTransaction& txFrom, CTransaction& txTo, unsigned int nIn, int nHashType=SIGHASH_ALL);
+bool VerifySignature(const CTransaction& txFrom, const CTransaction& txTo, unsigned int nIn, bool fValidatePayToScriptHash, int nHashType);
#endif
git://git.novaco.in / novacoin.git / blobdiff