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/bitfield.h>
#include <script/script.h>
#include <script/sigencoding.h>
#include <uint256.h>
#include <util/bitmanip.h>

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

Functions
bool	CastToBool (const valtype &vch)
static void	popstack (std::vector< valtype > &stack)
int	FindAndDelete (CScript &script, const CScript &b)
static void	CleanupScriptCode (CScript &scriptCode, const std::vector< uint8_t > &vchSig, uint32_t flags)
static bool	IsOpcodeDisabled (opcodetype opcode, uint32_t flags)
static bool	EvalChecksig (const valtype &vchSig, const valtype &vchPubKey, CScript::const_iterator pbegincodehash, CScript::const_iterator pend, uint32_t flags, const BaseSignatureChecker &checker, ScriptExecutionMetrics &metrics, ScriptError *serror, bool &fSuccess)
	Helper for OP_CHECKSIG and OP_CHECKSIGVERIFY.
bool	EvalScript (std::vector< valtype > &stack, const CScript &script, uint32_t flags, const BaseSignatureChecker &checker, ScriptExecutionMetrics &metrics, ScriptError *serror)
template<class T >
uint256	SignatureHash (const CScript &scriptCode, const T &txTo, unsigned int nIn, SigHashType sigHashType, const Amount amount, const PrecomputedTransactionData *cache, uint32_t flags)
bool	VerifyScript (const CScript &scriptSig, const CScript &scriptPubKey, uint32_t flags, const BaseSignatureChecker &checker, ScriptExecutionMetrics &metricsOut, ScriptError *serror)
	Execute an unlocking and locking script together.

Macro Definition Documentation

altstacktop

#define altstacktop

(

i

)

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

Definition at line 37 of file interpreter.cpp.

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.

Definition at line 36 of file interpreter.cpp.

Function Documentation

CastToBool()

bool CastToBool

(

const valtype &

vch

)

Definition at line 19 of file interpreter.cpp.

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CleanupScriptCode()

static void CleanupScriptCode ( CScript &  scriptCode, const std::vector< uint8_t > &  vchSig, uint32_t  flags  )

static

Definition at line 73 of file interpreter.cpp.

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EvalChecksig()

static bool EvalChecksig ( const valtype &  vchSig, const valtype &  vchPubKey, CScript::const_iterator  pbegincodehash, CScript::const_iterator  pend, uint32_t  flags, const BaseSignatureChecker &  checker, ScriptExecutionMetrics &  metrics, ScriptError *  serror, bool &  fSuccess  )

static

Helper for OP_CHECKSIG and OP_CHECKSIGVERIFY.

A return value of false means the script fails entirely. When true is returned, the fSuccess variable indicates whether the signature check itself succeeded.

Definition at line 108 of file interpreter.cpp.

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EvalScript()

bool EvalScript	(	std::vector< valtype > &	stack,
		const CScript &	script,
		uint32_t	flags,
		const BaseSignatureChecker &	checker,
		ScriptExecutionMetrics &	metrics,
		ScriptError *	serror
	)

Definition at line 1345 of file interpreter.cpp.

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FindAndDelete()

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

Definition at line 45 of file interpreter.cpp.

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IsOpcodeDisabled()

static bool IsOpcodeDisabled ( opcodetype  opcode, uint32_t  flags  )

static

Definition at line 83 of file interpreter.cpp.

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popstack()

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

inlinestatic

Definition at line 38 of file interpreter.cpp.

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SignatureHash()

template<class T >

uint256 SignatureHash	(	const CScript &	scriptCode,
		const T &	txTo,
		unsigned int	nIn,
		SigHashType	sigHashType,
		const Amount	amount,
		const PrecomputedTransactionData *	cache,
		uint32_t	flags
	)

Definition at line 1509 of file interpreter.cpp.

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VerifyScript()

bool VerifyScript	(	const CScript &	scriptSig,
		const CScript &	scriptPubKey,
		uint32_t	flags,
		const BaseSignatureChecker &	checker,
		ScriptExecutionMetrics &	metricsOut,
		ScriptError *	serror = nullptr
	)

Execute an unlocking and locking script together.

Upon success, metrics will hold the accumulated script metrics. (upon failure, the results should not be relied on)

Definition at line 1720 of file interpreter.cpp.

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