LCOV - code coverage report
Current view: top level - src/script - solver.h (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 0 2 0.0 %
Date: 2023-11-06 23:13:05 Functions: 0 1 0.0 %
Branches: 0 2 0.0 %

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2009-2010 Satoshi Nakamoto
       2                 :            : // Copyright (c) 2009-2022 The Bitcoin Core developers
       3                 :            : // Distributed under the MIT software license, see the accompanying
       4                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       5                 :            : 
       6                 :            : // The Solver functions are used by policy and the wallet, but not consensus.
       7                 :            : 
       8                 :            : #ifndef BITCOIN_SCRIPT_SOLVER_H
       9                 :            : #define BITCOIN_SCRIPT_SOLVER_H
      10                 :            : 
      11                 :            : #include <attributes.h>
      12                 :            : #include <script/script.h>
      13                 :            : 
      14                 :            : #include <string>
      15                 :            : #include <optional>
      16                 :            : #include <utility>
      17                 :            : #include <vector>
      18                 :            : 
      19                 :            : class CPubKey;
      20                 :            : template <typename C> class Span;
      21                 :            : 
      22                 :            : enum class TxoutType {
      23                 :            :     NONSTANDARD,
      24                 :            :     // 'standard' transaction types:
      25                 :            :     PUBKEY,
      26                 :            :     PUBKEYHASH,
      27                 :            :     SCRIPTHASH,
      28                 :            :     MULTISIG,
      29                 :            :     NULL_DATA, //!< unspendable OP_RETURN script that carries data
      30                 :            :     WITNESS_V0_SCRIPTHASH,
      31                 :            :     WITNESS_V0_KEYHASH,
      32                 :            :     WITNESS_V1_TAPROOT,
      33                 :            :     WITNESS_UNKNOWN, //!< Only for Witness versions not already defined above
      34                 :            : };
      35                 :            : 
      36                 :            : /** Get the name of a TxoutType as a string */
      37                 :            : std::string GetTxnOutputType(TxoutType t);
      38                 :            : 
      39                 :          0 : constexpr bool IsPushdataOp(opcodetype opcode)
      40                 :            : {
      41         [ #  # ]:          0 :     return opcode > OP_FALSE && opcode <= OP_PUSHDATA4;
      42                 :            : }
      43                 :            : 
      44                 :            : /**
      45                 :            :  * Parse a scriptPubKey and identify script type for standard scripts. If
      46                 :            :  * successful, returns script type and parsed pubkeys or hashes, depending on
      47                 :            :  * the type. For example, for a P2SH script, vSolutionsRet will contain the
      48                 :            :  * script hash, for P2PKH it will contain the key hash, etc.
      49                 :            :  *
      50                 :            :  * @param[in]   scriptPubKey   Script to parse
      51                 :            :  * @param[out]  vSolutionsRet  Vector of parsed pubkeys and hashes
      52                 :            :  * @return                     The script type. TxoutType::NONSTANDARD represents a failed solve.
      53                 :            :  */
      54                 :            : TxoutType Solver(const CScript& scriptPubKey, std::vector<std::vector<unsigned char>>& vSolutionsRet);
      55                 :            : 
      56                 :            : /** Generate a P2PK script for the given pubkey. */
      57                 :            : CScript GetScriptForRawPubKey(const CPubKey& pubkey);
      58                 :            : 
      59                 :            : /** Determine if script is a "multi_a" script. Returns (threshold, keyspans) if so, and nullopt otherwise.
      60                 :            :  *  The keyspans refer to bytes in the passed script. */
      61                 :            : std::optional<std::pair<int, std::vector<Span<const unsigned char>>>> MatchMultiA(const CScript& script LIFETIMEBOUND);
      62                 :            : 
      63                 :            : /** Generate a multisig script. */
      64                 :            : CScript GetScriptForMultisig(int nRequired, const std::vector<CPubKey>& keys);
      65                 :            : 
      66                 :            : #endif // BITCOIN_SCRIPT_SOLVER_H

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