interpreter.cpp File Reference

#include <script/interpreter.h>
#include <crypto/ripemd160.h>
#include <crypto/sha1.h>
#include <crypto/sha256.h>
#include <pubkey.h>
#include <script/script.h>
#include <uint256.h>

Classes
class	anonymous_namespace{interpreter.cpp}::CTransactionSignatureSerializer< T >

Namespaces
	anonymous_namespace{interpreter.cpp}

Macros
#define	stacktop(i)   (stack.at(stack.size()+(i)))
#define	altstacktop(i)   (altstack.at(altstack.size()+(i)))

Typedefs
typedef std::vector< unsigned char >	valtype

Functions
bool	anonymous_namespace{interpreter.cpp}::set_success (ScriptError *ret)
bool	anonymous_namespace{interpreter.cpp}::set_error (ScriptError *ret, const ScriptError serror)
bool	CastToBool (const valtype &vch)
static void	popstack (std::vector< valtype > &stack)
static bool	IsCompressedOrUncompressedPubKey (const valtype &vchPubKey)
static bool	IsCompressedPubKey (const valtype &vchPubKey)
static bool	IsValidSignatureEncoding (const std::vector< unsigned char > &sig)
static bool	IsLowDERSignature (const valtype &vchSig, ScriptError *serror)
static bool	IsDefinedHashtypeSignature (const valtype &vchSig)
bool	CheckSignatureEncoding (const std::vector< unsigned char > &vchSig, unsigned int flags, ScriptError *serror)
static bool	CheckPubKeyEncoding (const valtype &vchPubKey, unsigned int flags, const SigVersion &sigversion, ScriptError *serror)
static bool	CheckMinimalPush (const valtype &data, opcodetype opcode)
int	FindAndDelete (CScript &script, const CScript &b)
bool	EvalScript (std::vector< std::vector< unsigned char > > &stack, const CScript &script, unsigned int flags, const BaseSignatureChecker &checker, SigVersion sigversion, ScriptError *serror)
template<class T >
uint256	anonymous_namespace{interpreter.cpp}::GetPrevoutHash (const T &txTo)
template<class T >
uint256	anonymous_namespace{interpreter.cpp}::GetSequenceHash (const T &txTo)
template<class T >
uint256	anonymous_namespace{interpreter.cpp}::GetOutputsHash (const T &txTo)
template<class T >
uint256	SignatureHash (const CScript &scriptCode, const T &txTo, unsigned int nIn, int nHashType, const CAmount &amount, SigVersion sigversion, const PrecomputedTransactionData *cache)
static bool	VerifyWitnessProgram (const CScriptWitness &witness, int witversion, const std::vector< unsigned char > &program, unsigned int flags, const BaseSignatureChecker &checker, ScriptError *serror)
bool	VerifyScript (const CScript &scriptSig, const CScript &scriptPubKey, const CScriptWitness *witness, unsigned int flags, const BaseSignatureChecker &checker, ScriptError *serror)
static size_t	WitnessSigOps (int witversion, const std::vector< unsigned char > &witprogram, const CScriptWitness &witness)
size_t	CountWitnessSigOps (const CScript &scriptSig, const CScript &scriptPubKey, const CScriptWitness *witness, unsigned int flags)

Macro Definition Documentation

altstacktop

#define altstacktop

(

i

)

(altstack.at(altstack.size()+(i)))

stacktop

#define stacktop

(

i

)

(stack.at(stack.size()+(i)))

Script is a stack machine (like Forth) that evaluates a predicate returning a bool indicating valid or not. There are no loops.

Typedef Documentation

valtype

typedef std::vector<unsigned char> valtype

Function Documentation

CastToBool()

bool CastToBool

(

const valtype &

vch

)

CheckMinimalPush()

static bool CheckMinimalPush ( const valtype &  data, opcodetype  opcode  )

static

CheckPubKeyEncoding()

static bool CheckPubKeyEncoding ( const valtype &  vchPubKey, unsigned int  flags, const SigVersion &  sigversion, ScriptError *  serror  )

static

CheckSignatureEncoding()

bool CheckSignatureEncoding	(	const std::vector< unsigned char > &	vchSig,
		unsigned int	flags,
		ScriptError *	serror
	)

CountWitnessSigOps()

size_t CountWitnessSigOps	(	const CScript &	scriptSig,
		const CScript &	scriptPubKey,
		const CScriptWitness *	witness,
		unsigned int	flags
	)

EvalScript()

bool EvalScript	(	std::vector< std::vector< unsigned char > > &	stack,
		const CScript &	script,
		unsigned int	flags,
		const BaseSignatureChecker &	checker,
		SigVersion	sigversion,
		ScriptError *	serror
	)

FindAndDelete()

int FindAndDelete	(	CScript &	script,
		const CScript &	b
	)

IsCompressedOrUncompressedPubKey()

static bool IsCompressedOrUncompressedPubKey ( const valtype &  vchPubKey )

static

IsCompressedPubKey()

static bool IsCompressedPubKey ( const valtype &  vchPubKey )

static

IsDefinedHashtypeSignature()

static bool IsDefinedHashtypeSignature ( const valtype &  vchSig )

static

IsLowDERSignature()

static bool IsLowDERSignature ( const valtype &  vchSig, ScriptError *  serror  )

static

IsValidSignatureEncoding()

static bool IsValidSignatureEncoding ( const std::vector< unsigned char > &  sig )

static

A canonical signature exists of: <30> <total len>=""> <02> <len r>=""> <R> <02> <len s>=""> <S> <hashtype> Where R and S are not negative (their first byte has its highest bit not set), and not excessively padded (do not start with a 0 byte, unless an otherwise negative number follows, in which case a single 0 byte is necessary and even required).

See https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623

This function is consensus-critical since BIP66.

popstack()

static void popstack ( std::vector< valtype > &  stack )

inlinestatic

SignatureHash()

template<class T >

uint256 SignatureHash	(	const CScript &	scriptCode,
		const T &	txTo,
		unsigned int	nIn,
		int	nHashType,
		const CAmount &	amount,
		SigVersion	sigversion,
		const PrecomputedTransactionData *	cache
	)

VerifyScript()

bool VerifyScript	(	const CScript &	scriptSig,
		const CScript &	scriptPubKey,
		const CScriptWitness *	witness,
		unsigned int	flags,
		const BaseSignatureChecker &	checker,
		ScriptError *	serror
	)

VerifyWitnessProgram()

static bool VerifyWitnessProgram ( const CScriptWitness &  witness, int  witversion, const std::vector< unsigned char > &  program, unsigned int  flags, const BaseSignatureChecker &  checker, ScriptError *  serror  )

static

WitnessSigOps()

static size_t WitnessSigOps ( int  witversion, const std::vector< unsigned char > &  witprogram, const CScriptWitness &  witness  )

static