script.h File Reference

#include <string>
#include <vector>
#include <boost/foreach.hpp>
#include <boost/variant.hpp>
#include "keystore.h"
#include "bignum.h"

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Classes
class	CNoDestination
class	CScript
	Serialized script, used inside transaction inputs and outputs. More...
class	CScriptCompressor
	Compact serializer for scripts. More...

Typedefs
typedef boost::variant < CNoDestination, CKeyID, CScriptID >	CTxDestination
	A txout script template with a specific destination. More...

Enumerations
enum	{ SIGHASH_ALL = 1, SIGHASH_NONE = 2, SIGHASH_SINGLE = 3, SIGHASH_ANYONECANPAY = 0x80 }
	Signature hash types/flags. More...
enum	{ SCRIPT_VERIFY_NONE = 0, SCRIPT_VERIFY_P2SH = (1U << 0), SCRIPT_VERIFY_STRICTENC = (1U << 1), SCRIPT_VERIFY_NOCACHE = (1U << 2) }
	Script verification flags. More...
enum	txnouttype {   TX_NONSTANDARD, TX_PUBKEY, TX_PUBKEYHASH, TX_SCRIPTHASH,   TX_MULTISIG }
enum	opcodetype {   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 = 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,   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, 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, OP_CAT = 0x7e, OP_SUBSTR = 0x7f, OP_LEFT = 0x80,   OP_RIGHT = 0x81, OP_SIZE = 0x82, OP_INVERT = 0x83, OP_AND = 0x84,   OP_OR = 0x85, OP_XOR = 0x86, OP_EQUAL = 0x87, OP_EQUALVERIFY = 0x88,   OP_RESERVED1 = 0x89, OP_RESERVED2 = 0x8a, 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, 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, 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, OP_SMALLINTEGER = 0xfa, OP_PUBKEYS = 0xfb, OP_PUBKEYHASH = 0xfd,   OP_PUBKEY = 0xfe, OP_INVALIDOPCODE = 0xff }
	Script opcodes. More...

Functions
const char *	GetTxnOutputType (txnouttype t)
const char *	GetOpName (opcodetype opcode)
std::string	ValueString (const std::vector< unsigned char > &vch)
std::string	StackString (const std::vector< std::vector< unsigned char > > &vStack)
bool	IsCanonicalPubKey (const std::vector< unsigned char > &vchPubKey)
bool	IsCanonicalSignature (const std::vector< unsigned char > &vchSig)
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)
bool	IsStandard (const CScript &scriptPubKey)
bool	IsMine (const CKeyStore &keystore, const CScript &scriptPubKey)
bool	IsMine (const CKeyStore &keystore, const CTxDestination &dest)
bool	ExtractDestination (const CScript &scriptPubKey, CTxDestination &addressRet)
bool	ExtractDestinations (const CScript &scriptPubKey, txnouttype &typeRet, std::vector< CTxDestination > &addressRet, int &nRequiredRet)
bool	SignSignature (const CKeyStore &keystore, const CScript &fromPubKey, CTransaction &txTo, unsigned int nIn, int nHashType=SIGHASH_ALL)
bool	SignSignature (const CKeyStore &keystore, const CTransaction &txFrom, CTransaction &txTo, unsigned int nIn, int nHashType=SIGHASH_ALL)
bool	VerifyScript (const CScript &scriptSig, const CScript &scriptPubKey, const CTransaction &txTo, unsigned int nIn, unsigned int flags, int nHashType)
CScript	CombineSignatures (CScript scriptPubKey, const CTransaction &txTo, unsigned int nIn, const CScript &scriptSig1, const CScript &scriptSig2)

Typedef Documentation

typedef boost::variant<CNoDestination, CKeyID, CScriptID> CTxDestination

A txout script template with a specific destination.

It is either:

• CNoDestination: no destination set
• CKeyID: TX_PUBKEYHASH destination
• CScriptID: TX_SCRIPTHASH destination A CTxDestination is the internal data type encoded in a CBitcoinAddress

Definition at line 62 of file script.h.

Enumeration Type Documentation

anonymous enum

Signature hash types/flags.

Enumerator
SIGHASH_ALL
SIGHASH_NONE
SIGHASH_SINGLE
SIGHASH_ANYONECANPAY

Definition at line 23 of file script.h.

anonymous enum

Script verification flags.

Enumerator
SCRIPT_VERIFY_NONE
SCRIPT_VERIFY_P2SH
SCRIPT_VERIFY_STRICTENC
SCRIPT_VERIFY_NOCACHE

Definition at line 32 of file script.h.

enum opcodetype

Script opcodes.

Enumerator
OP_0
OP_FALSE
OP_PUSHDATA1
OP_PUSHDATA2
OP_PUSHDATA4
OP_1NEGATE
OP_RESERVED
OP_1
OP_TRUE
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_NOP
OP_VER
OP_IF
OP_NOTIF
OP_VERIF
OP_VERNOTIF
OP_ELSE
OP_ENDIF
OP_VERIFY
OP_RETURN
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_CAT
OP_SUBSTR
OP_LEFT
OP_RIGHT
OP_SIZE
OP_INVERT
OP_AND
OP_OR
OP_XOR
OP_EQUAL
OP_EQUALVERIFY
OP_RESERVED1
OP_RESERVED2
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_RIPEMD160
OP_SHA1
OP_SHA256
OP_HASH160
OP_HASH256
OP_CODESEPARATOR
OP_CHECKSIG
OP_CHECKSIGVERIFY
OP_CHECKMULTISIG
OP_CHECKMULTISIGVERIFY
OP_NOP1
OP_NOP2
OP_NOP3
OP_NOP4
OP_NOP5
OP_NOP6
OP_NOP7
OP_NOP8
OP_NOP9
OP_NOP10
OP_SMALLINTEGER
OP_PUBKEYS
OP_PUBKEYHASH
OP_PUBKEY
OP_INVALIDOPCODE

Definition at line 67 of file script.h.

enum txnouttype

Enumerator
TX_NONSTANDARD
TX_PUBKEY
TX_PUBKEYHASH
TX_SCRIPTHASH
TX_MULTISIG

Definition at line 40 of file script.h.

Function Documentation

CScript CombineSignatures	(	CScript	scriptPubKey,
		const CTransaction &	txTo,
		unsigned int	nIn,
		const CScript &	scriptSig1,
		const CScript &	scriptSig2
	)

Definition at line 1671 of file script.cpp.

bool EvalScript	(	std::vector< std::vector< unsigned char > > &	stack,
		const CScript &	script,
		const CTransaction &	txTo,
		unsigned int	nIn,
		unsigned int	flags,
		int	nHashType
	)

Definition at line 292 of file script.cpp.

bool ExtractDestination	(	const CScript &	scriptPubKey,
		CTxDestination &	addressRet
	)

Definition at line 1422 of file script.cpp.

bool ExtractDestinations	(	const CScript &	scriptPubKey,
		txnouttype &	typeRet,
		std::vector< CTxDestination > &	addressRet,
		int &	nRequiredRet
	)

Definition at line 1448 of file script.cpp.

const char* GetOpName

(

opcodetype

opcode

)

Definition at line 87 of file script.cpp.

const char* GetTxnOutputType

(

txnouttype

t

)

Definition at line 73 of file script.cpp.

bool IsCanonicalPubKey

(

const std::vector< unsigned char > &

vchPubKey

)

Definition at line 230 of file script.cpp.

bool IsCanonicalSignature

(

const std::vector< unsigned char > &

vchSig

)

Definition at line 245 of file script.cpp.

bool IsMine	(	const CKeyStore &	keystore,
		const CScript &	scriptPubKey
	)

Definition at line 1383 of file script.cpp.

bool IsMine	(	const CKeyStore &	keystore,
		const CTxDestination &	dest
	)

Definition at line 1378 of file script.cpp.

bool IsStandard

(

const CScript &

scriptPubKey

)

Definition at line 1332 of file script.cpp.

int ScriptSigArgsExpected	(	txnouttype	t,
		const std::vector< std::vector< unsigned char > > &	vSolutions
	)

Definition at line 1312 of file script.cpp.

bool SignSignature	(	const CKeyStore &	keystore,
		const CScript &	fromPubKey,
		CTransaction &	txTo,
		unsigned int	nIn,
		int	nHashType = SIGHASH_ALL
	)

Definition at line 1519 of file script.cpp.

bool SignSignature	(	const CKeyStore &	keystore,
		const CTransaction &	txFrom,
		CTransaction &	txTo,
		unsigned int	nIn,
		int	nHashType = SIGHASH_ALL
	)

Definition at line 1554 of file script.cpp.

bool Solver	(	const CScript &	scriptPubKey,
		txnouttype &	typeRet,
		std::vector< std::vector< unsigned char > > &	vSolutionsRet
	)

Definition at line 1127 of file script.cpp.

std::string StackString ( const std::vector< std::vector< unsigned char > > &  vStack )

inline

Definition at line 224 of file script.h.

std::string ValueString ( const std::vector< unsigned char > &  vch )

inline

Definition at line 216 of file script.h.

bool VerifyScript	(	const CScript &	scriptSig,
		const CScript &	scriptPubKey,
		const CTransaction &	txTo,
		unsigned int	nIn,
		unsigned int	flags,
		int	nHashType
	)

Definition at line 1477 of file script.cpp.