LCOV - code coverage report
Current view: top level - src - bech32.h (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 2 2 100.0 %
Date: 2023-10-05 15:40:34 Functions: 3 3 100.0 %
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2017, 2021 Pieter Wuille
       2                 :            : // Copyright (c) 2021 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                 :            : // Bech32 and Bech32m are string encoding formats used in newer
       7                 :            : // address types. The outputs consist of a human-readable part
       8                 :            : // (alphanumeric), a separator character (1), and a base32 data
       9                 :            : // section, the last 6 characters of which are a checksum. The
      10                 :            : // module is namespaced under bech32 for historical reasons.
      11                 :            : //
      12                 :            : // For more information, see BIP 173 and BIP 350.
      13                 :            : 
      14                 :            : #ifndef BITCOIN_BECH32_H
      15                 :            : #define BITCOIN_BECH32_H
      16                 :            : 
      17                 :            : #include <stdint.h>
      18                 :            : #include <string>
      19                 :            : #include <vector>
      20                 :            : 
      21                 :            : namespace bech32
      22                 :            : {
      23                 :            : 
      24                 :            : enum class Encoding {
      25                 :            :     INVALID, //!< Failed decoding
      26                 :            : 
      27                 :            :     BECH32,  //!< Bech32 encoding as defined in BIP173
      28                 :            :     BECH32M, //!< Bech32m encoding as defined in BIP350
      29                 :            : };
      30                 :            : 
      31                 :            : /** Encode a Bech32 or Bech32m string. If hrp contains uppercase characters, this will cause an
      32                 :            :  *  assertion error. Encoding must be one of BECH32 or BECH32M. */
      33                 :            : std::string Encode(Encoding encoding, const std::string& hrp, const std::vector<uint8_t>& values);
      34                 :            : 
      35                 :            : struct DecodeResult
      36                 :            : {
      37                 :            :     Encoding encoding;         //!< What encoding was detected in the result; Encoding::INVALID if failed.
      38                 :            :     std::string hrp;           //!< The human readable part
      39                 :            :     std::vector<uint8_t> data; //!< The payload (excluding checksum)
      40                 :            : 
      41                 :         49 :     DecodeResult() : encoding(Encoding::INVALID) {}
      42                 :        116 :     DecodeResult(Encoding enc, std::string&& h, std::vector<uint8_t>&& d) : encoding(enc), hrp(std::move(h)), data(std::move(d)) {}
      43                 :            : };
      44                 :            : 
      45                 :            : /** Decode a Bech32 or Bech32m string. */
      46                 :            : DecodeResult Decode(const std::string& str);
      47                 :            : 
      48                 :            : /** Return the positions of errors in a Bech32 string. */
      49                 :            : std::pair<std::string, std::vector<int>> LocateErrors(const std::string& str);
      50                 :            : 
      51                 :            : } // namespace bech32
      52                 :            : 
      53                 :            : #endif // BITCOIN_BECH32_H

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