text: // Copyright (c) 2012-2020 The Bitcoin Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <clientversion.h>
  
  #include <tinyformat.h>
  
  
  /**
   * Name of client reported in the 'version' message. Report the same name
   * for both bitcoind and bitcoin-qt, to make it harder for attackers to
   * target servers or GUI users specifically.
   */
  const std::string CLIENT_NAME("Satoshi");
  
  
  #ifdef HAVE_BUILD_INFO
  #include <obj/build.h>
  // The <obj/build.h>, which is generated by the build environment (share/genbuild.sh),
  // could contain only one line of the following:
  //   - "#define BUILD_GIT_TAG ...", if the top commit is tagged
  //   - "#define BUILD_GIT_COMMIT ...", if the top commit is not tagged
  //   - "// No build information available", if proper git information is not available
  #endif
  
  //! git will put "#define GIT_COMMIT_ID ..." on the next line inside archives. $Format:%n#define GIT_COMMIT_ID "%H"$
  
  #ifdef BUILD_GIT_TAG
      #define BUILD_DESC BUILD_GIT_TAG
      #define BUILD_SUFFIX ""
  #else
      #define BUILD_DESC "v" STRINGIZE(CLIENT_VERSION_MAJOR) "." STRINGIZE(CLIENT_VERSION_MINOR) "." STRINGIZE(CLIENT_VERSION_PARTICL) "." STRINGIZE(CLIENT_VERSION_BUILD)
      #ifdef BUILD_GIT_COMMIT
          #define BUILD_SUFFIX "-" BUILD_GIT_COMMIT
      #elif defined(GIT_COMMIT_ID)
          #define BUILD_SUFFIX "-g" GIT_COMMIT_ID
      #else
          #define BUILD_SUFFIX "-unk"
      #endif
  #endif
  
  const std::string CLIENT_BUILD(BUILD_DESC BUILD_SUFFIX);
  
  static std::string FormatVersion(int nVersion)
  {
      return strprintf("%d.%d.%d.%d", nVersion / 1000000, (nVersion / 10000) % 100, (nVersion / 100) % 100, nVersion % 100);
  }
  
  std::string FormatFullVersion()
  {
      return CLIENT_BUILD;
  }
  
  /**
   * Format the subversion field according to BIP 14 spec (https://github.com/bitcoin/bips/blob/master/bip-0014.mediawiki)
   */
  std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments)
  {
      std::ostringstream ss;
      ss << "/";
      ss << name << ":" << FormatVersion(nClientVersion);
      if (!comments.empty())
      {
          std::vector<std::string>::const_iterator it(comments.begin());
          ss << "(" << *it;
          for(++it; it != comments.end(); ++it)
              ss << "; " << *it;
          ss << ")";
      }
      ss << "/";
      return ss.str();
  }
  