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91d924ede1
Since script/standard only contains things that are used by the Solver and its callers, rename the files to script/solver.
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
// Copyright (c) 2009-2010 Satoshi Nakamoto
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// Copyright (c) 2009-2022 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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// The Solver functions are used by policy and the wallet, but not consensus.
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#ifndef BITCOIN_SCRIPT_SOLVER_H
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#define BITCOIN_SCRIPT_SOLVER_H
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#include <attributes.h>
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#include <script/script.h>
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#include <string>
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#include <optional>
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#include <utility>
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#include <vector>
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class CPubKey;
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template <typename C> class Span;
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enum class TxoutType {
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NONSTANDARD,
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// 'standard' transaction types:
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PUBKEY,
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PUBKEYHASH,
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SCRIPTHASH,
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MULTISIG,
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NULL_DATA, //!< unspendable OP_RETURN script that carries data
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WITNESS_V0_SCRIPTHASH,
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WITNESS_V0_KEYHASH,
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WITNESS_V1_TAPROOT,
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WITNESS_UNKNOWN, //!< Only for Witness versions not already defined above
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};
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/** Get the name of a TxoutType as a string */
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std::string GetTxnOutputType(TxoutType t);
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constexpr bool IsPushdataOp(opcodetype opcode)
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{
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return opcode > OP_FALSE && opcode <= OP_PUSHDATA4;
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}
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/**
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* Parse a scriptPubKey and identify script type for standard scripts. If
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* successful, returns script type and parsed pubkeys or hashes, depending on
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* the type. For example, for a P2SH script, vSolutionsRet will contain the
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* script hash, for P2PKH it will contain the key hash, etc.
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*
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* @param[in] scriptPubKey Script to parse
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* @param[out] vSolutionsRet Vector of parsed pubkeys and hashes
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* @return The script type. TxoutType::NONSTANDARD represents a failed solve.
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*/
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TxoutType Solver(const CScript& scriptPubKey, std::vector<std::vector<unsigned char>>& vSolutionsRet);
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/** Generate a P2PK script for the given pubkey. */
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CScript GetScriptForRawPubKey(const CPubKey& pubkey);
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/** Determine if script is a "multi_a" script. Returns (threshold, keyspans) if so, and nullopt otherwise.
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* The keyspans refer to bytes in the passed script. */
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std::optional<std::pair<int, std::vector<Span<const unsigned char>>>> MatchMultiA(const CScript& script LIFETIMEBOUND);
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/** Generate a multisig script. */
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CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys);
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#endif // BITCOIN_SCRIPT_SOLVER_H
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