diff options
Diffstat (limited to 'src/script/bitcoinconsensus.cpp')
| -rw-r--r-- | src/script/bitcoinconsensus.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/src/script/bitcoinconsensus.cpp b/src/script/bitcoinconsensus.cpp index b629f4278b..069ac55bfb 100644 --- a/src/script/bitcoinconsensus.cpp +++ b/src/script/bitcoinconsensus.cpp @@ -23,7 +23,7 @@ public: m_remaining(txToLen) {} - TxInputStream& read(char* pch, size_t nSize) + void read(char* pch, size_t nSize) { if (nSize > m_remaining) throw std::ios_base::failure(std::string(__func__) + ": end of data"); @@ -37,16 +37,17 @@ public: memcpy(pch, m_data, nSize); m_remaining -= nSize; m_data += nSize; - return *this; } template<typename T> TxInputStream& operator>>(T& obj) { - ::Unserialize(*this, obj, m_type, m_version); + ::Unserialize(*this, obj); return *this; } + int GetVersion() const { return m_version; } + int GetType() const { return m_type; } private: const int m_type; const int m_version; @@ -69,17 +70,26 @@ struct ECCryptoClosure ECCryptoClosure instance_of_eccryptoclosure; } +/** Check that all specified flags are part of the libconsensus interface. */ +static bool verify_flags(unsigned int flags) +{ + return (flags & ~(bitcoinconsensus_SCRIPT_FLAGS_VERIFY_ALL)) == 0; +} + static int verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, CAmount amount, const unsigned char *txTo , unsigned int txToLen, unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err) { + if (!verify_flags(flags)) { + return bitcoinconsensus_ERR_INVALID_FLAGS; + } try { TxInputStream stream(SER_NETWORK, PROTOCOL_VERSION, txTo, txToLen); CTransaction tx; stream >> tx; if (nIn >= tx.vin.size()) return set_error(err, bitcoinconsensus_ERR_TX_INDEX); - if (tx.GetSerializeSize(SER_NETWORK, PROTOCOL_VERSION) != txToLen) + if (GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION) != txToLen) return set_error(err, bitcoinconsensus_ERR_TX_SIZE_MISMATCH); // Regardless of the verification result, the tx did not error. |