diff options
Diffstat (limited to 'src/script/interpreter.cpp')
| -rw-r--r-- | src/script/interpreter.cpp | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp index aabb3192a9..2fa7e5e1ab 100644 --- a/src/script/interpreter.cpp +++ b/src/script/interpreter.cpp @@ -1524,7 +1524,7 @@ static bool ExecuteWitnessScript(const Span<const valtype>& stack_span, const CS static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion, const std::vector<unsigned char>& program, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* serror) { - CScript scriptPubKey; + CScript exec_script; //!< Actually executed script (last stack item in P2WSH; implied P2PKH script in P2WPKH) Span<const valtype> stack{witness.stack}; if (witversion == 0) { @@ -1534,20 +1534,20 @@ static bool VerifyWitnessProgram(const CScriptWitness& witness, int witversion, return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_WITNESS_EMPTY); } const valtype& script_bytes = SpanPopBack(stack); - scriptPubKey = CScript(script_bytes.begin(), script_bytes.end()); - uint256 hashScriptPubKey; - CSHA256().Write(&scriptPubKey[0], scriptPubKey.size()).Finalize(hashScriptPubKey.begin()); - if (memcmp(hashScriptPubKey.begin(), program.data(), 32)) { + exec_script = CScript(script_bytes.begin(), script_bytes.end()); + uint256 hash_exec_script; + CSHA256().Write(&exec_script[0], exec_script.size()).Finalize(hash_exec_script.begin()); + if (memcmp(hash_exec_script.begin(), program.data(), 32)) { return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH); } - return ExecuteWitnessScript(stack, scriptPubKey, flags, SigVersion::WITNESS_V0, checker, serror); + return ExecuteWitnessScript(stack, exec_script, flags, SigVersion::WITNESS_V0, checker, serror); } else if (program.size() == WITNESS_V0_KEYHASH_SIZE) { // Special case for pay-to-pubkeyhash; signature + pubkey in witness if (stack.size() != 2) { return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_MISMATCH); // 2 items in witness } - scriptPubKey << OP_DUP << OP_HASH160 << program << OP_EQUALVERIFY << OP_CHECKSIG; - return ExecuteWitnessScript(stack, scriptPubKey, flags, SigVersion::WITNESS_V0, checker, serror); + exec_script << OP_DUP << OP_HASH160 << program << OP_EQUALVERIFY << OP_CHECKSIG; + return ExecuteWitnessScript(stack, exec_script, flags, SigVersion::WITNESS_V0, checker, serror); } else { return set_error(serror, SCRIPT_ERR_WITNESS_PROGRAM_WRONG_LENGTH); } |