diff options
Diffstat (limited to 'src/script/standard.cpp')
-rw-r--r-- | src/script/standard.cpp | 57 |
1 files changed, 21 insertions, 36 deletions
diff --git a/src/script/standard.cpp b/src/script/standard.cpp index d7b1724790..d309420d35 100644 --- a/src/script/standard.cpp +++ b/src/script/standard.cpp @@ -87,7 +87,7 @@ static bool MatchMultisig(const CScript& script, unsigned int& required, std::ve return (it + 1 == script.end()); } -bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::vector<unsigned char> >& vSolutionsRet) +txnouttype Solver(const CScript& scriptPubKey, std::vector<std::vector<unsigned char>>& vSolutionsRet) { vSolutionsRet.clear(); @@ -95,33 +95,28 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::v // it is always OP_HASH160 20 [20 byte hash] OP_EQUAL if (scriptPubKey.IsPayToScriptHash()) { - typeRet = TX_SCRIPTHASH; std::vector<unsigned char> hashBytes(scriptPubKey.begin()+2, scriptPubKey.begin()+22); vSolutionsRet.push_back(hashBytes); - return true; + return TX_SCRIPTHASH; } int witnessversion; std::vector<unsigned char> witnessprogram; if (scriptPubKey.IsWitnessProgram(witnessversion, witnessprogram)) { if (witnessversion == 0 && witnessprogram.size() == WITNESS_V0_KEYHASH_SIZE) { - typeRet = TX_WITNESS_V0_KEYHASH; vSolutionsRet.push_back(witnessprogram); - return true; + return TX_WITNESS_V0_KEYHASH; } if (witnessversion == 0 && witnessprogram.size() == WITNESS_V0_SCRIPTHASH_SIZE) { - typeRet = TX_WITNESS_V0_SCRIPTHASH; vSolutionsRet.push_back(witnessprogram); - return true; + return TX_WITNESS_V0_SCRIPTHASH; } if (witnessversion != 0) { - typeRet = TX_WITNESS_UNKNOWN; vSolutionsRet.push_back(std::vector<unsigned char>{(unsigned char)witnessversion}); vSolutionsRet.push_back(std::move(witnessprogram)); - return true; + return TX_WITNESS_UNKNOWN; } - typeRet = TX_NONSTANDARD; - return false; + return TX_NONSTANDARD; } // Provably prunable, data-carrying output @@ -130,47 +125,39 @@ bool Solver(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<std::v // byte passes the IsPushOnly() test we don't care what exactly is in the // script. if (scriptPubKey.size() >= 1 && scriptPubKey[0] == OP_RETURN && scriptPubKey.IsPushOnly(scriptPubKey.begin()+1)) { - typeRet = TX_NULL_DATA; - return true; + return TX_NULL_DATA; } std::vector<unsigned char> data; if (MatchPayToPubkey(scriptPubKey, data)) { - typeRet = TX_PUBKEY; vSolutionsRet.push_back(std::move(data)); - return true; + return TX_PUBKEY; } if (MatchPayToPubkeyHash(scriptPubKey, data)) { - typeRet = TX_PUBKEYHASH; vSolutionsRet.push_back(std::move(data)); - return true; + return TX_PUBKEYHASH; } unsigned int required; std::vector<std::vector<unsigned char>> keys; if (MatchMultisig(scriptPubKey, required, keys)) { - typeRet = TX_MULTISIG; vSolutionsRet.push_back({static_cast<unsigned char>(required)}); // safe as required is in range 1..16 vSolutionsRet.insert(vSolutionsRet.end(), keys.begin(), keys.end()); vSolutionsRet.push_back({static_cast<unsigned char>(keys.size())}); // safe as size is in range 1..16 - return true; + return TX_MULTISIG; } vSolutionsRet.clear(); - typeRet = TX_NONSTANDARD; - return false; + return TX_NONSTANDARD; } bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet) { std::vector<valtype> vSolutions; - txnouttype whichType; - if (!Solver(scriptPubKey, whichType, vSolutions)) - return false; + txnouttype whichType = Solver(scriptPubKey, vSolutions); - if (whichType == TX_PUBKEY) - { + if (whichType == TX_PUBKEY) { CPubKey pubKey(vSolutions[0]); if (!pubKey.IsValid()) return false; @@ -212,11 +199,11 @@ bool ExtractDestination(const CScript& scriptPubKey, CTxDestination& addressRet) bool ExtractDestinations(const CScript& scriptPubKey, txnouttype& typeRet, std::vector<CTxDestination>& addressRet, int& nRequiredRet) { addressRet.clear(); - typeRet = TX_NONSTANDARD; std::vector<valtype> vSolutions; - if (!Solver(scriptPubKey, typeRet, vSolutions)) + typeRet = Solver(scriptPubKey, vSolutions); + if (typeRet == TX_NONSTANDARD) { return false; - if (typeRet == TX_NULL_DATA){ + } else if (typeRet == TX_NULL_DATA) { // This is data, not addresses return false; } @@ -324,14 +311,12 @@ CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys) CScript GetScriptForWitness(const CScript& redeemscript) { - txnouttype typ; std::vector<std::vector<unsigned char> > vSolutions; - if (Solver(redeemscript, typ, vSolutions)) { - if (typ == TX_PUBKEY) { - return GetScriptForDestination(WitnessV0KeyHash(Hash160(vSolutions[0].begin(), vSolutions[0].end()))); - } else if (typ == TX_PUBKEYHASH) { - return GetScriptForDestination(WitnessV0KeyHash(vSolutions[0])); - } + txnouttype typ = Solver(redeemscript, vSolutions); + if (typ == TX_PUBKEY) { + return GetScriptForDestination(WitnessV0KeyHash(Hash160(vSolutions[0].begin(), vSolutions[0].end()))); + } else if (typ == TX_PUBKEYHASH) { + return GetScriptForDestination(WitnessV0KeyHash(vSolutions[0])); } return GetScriptForDestination(WitnessV0ScriptHash(redeemscript)); } |