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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_SCRIPT_BITCOINCONSENSUS_H
#define BITCOIN_SCRIPT_BITCOINCONSENSUS_H
#include <stdint.h>
#if defined(BUILD_BITCOIN_INTERNAL) && defined(HAVE_CONFIG_H)
#include <config/bitcoin-config.h>
#if defined(_WIN32)
#if defined(HAVE_DLLEXPORT_ATTRIBUTE)
#define EXPORT_SYMBOL __declspec(dllexport)
#else
#define EXPORT_SYMBOL
#endif
#elif defined(HAVE_DEFAULT_VISIBILITY_ATTRIBUTE)
#define EXPORT_SYMBOL __attribute__ ((visibility ("default")))
#endif
#elif defined(MSC_VER) && !defined(STATIC_LIBBITCOINCONSENSUS)
#define EXPORT_SYMBOL __declspec(dllimport)
#endif
#ifndef EXPORT_SYMBOL
#define EXPORT_SYMBOL
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define BITCOINCONSENSUS_API_VER 1
typedef enum bitcoinconsensus_error_t
{
bitcoinconsensus_ERR_OK = 0,
bitcoinconsensus_ERR_TX_INDEX,
bitcoinconsensus_ERR_TX_SIZE_MISMATCH,
bitcoinconsensus_ERR_TX_DESERIALIZE,
bitcoinconsensus_ERR_AMOUNT_REQUIRED,
bitcoinconsensus_ERR_INVALID_FLAGS,
} bitcoinconsensus_error;
/** Script verification flags */
enum
{
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NONE = 0,
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH = (1U << 0), // evaluate P2SH (BIP16) subscripts
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG = (1U << 2), // enforce strict DER (BIP66) compliance
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY = (1U << 4), // enforce NULLDUMMY (BIP147)
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY = (1U << 9), // enable CHECKLOCKTIMEVERIFY (BIP65)
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10), // enable CHECKSEQUENCEVERIFY (BIP112)
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS = (1U << 11), // enable WITNESS (BIP141)
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_ALL = bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG |
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NULLDUMMY | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKLOCKTIMEVERIFY |
bitcoinconsensus_SCRIPT_FLAGS_VERIFY_CHECKSEQUENCEVERIFY | bitcoinconsensus_SCRIPT_FLAGS_VERIFY_WITNESS
};
/// Returns 1 if the input nIn of the serialized transaction pointed to by
/// txTo correctly spends the scriptPubKey pointed to by scriptPubKey under
/// the additional constraints specified by flags.
/// If not nullptr, err will contain an error/success code for the operation
EXPORT_SYMBOL int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen,
const unsigned char *txTo , unsigned int txToLen,
unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err);
EXPORT_SYMBOL int bitcoinconsensus_verify_script_with_amount(const unsigned char *scriptPubKey, unsigned int scriptPubKeyLen, int64_t amount,
const unsigned char *txTo , unsigned int txToLen,
unsigned int nIn, unsigned int flags, bitcoinconsensus_error* err);
EXPORT_SYMBOL unsigned int bitcoinconsensus_version();
#ifdef __cplusplus
} // extern "C"
#endif
#undef EXPORT_SYMBOL
#endif // BITCOIN_SCRIPT_BITCOINCONSENSUS_H
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