get_win_name

x.c

BOOL __cdecl get_win_name(int a1, _DWORD *a2)
{
  BOOL result; // eax
  bool v3; // zf
  struct _OSVERSIONINFOA VersionInformation; // [esp+8h] [ebp-98h]

  std::string::operator=(a1, "unknown Windows version");
  *a2 = 0;
  VersionInformation.dwOSVersionInfoSize = 148;
  result = GetVersionExA(&VersionInformation);
  if ( result )
  {
    if ( VersionInformation.dwPlatformId != 1 )
    {
      if ( VersionInformation.dwPlatformId == 2 )
      {
        switch ( VersionInformation.dwMajorVersion )
        {
          case 3u:
            if ( VersionInformation.dwMinorVersion == 51 )
            {
              std::string::operator=(a1, "Windows NT 3.51");
              *a2 = 101;
            }
            break;
          case 4u:
            if ( !VersionInformation.dwMinorVersion )
            {
              std::string::operator=(a1, "Windows NT 4");
              *a2 = 102;
            }
            break;
          case 5u:
            if ( VersionInformation.dwMinorVersion )
            {
              if ( VersionInformation.dwMinorVersion == 1 )
              {
                std::string::operator=(a1, "Windows XP");
                *a2 = 104;
              }
            }
            else
            {
              std::string::operator=(a1, "Windows 2000");
              *a2 = 103;
            }
            break;
        }
      }
      else if ( VersionInformation.dwPlatformId == 3 )
      {
        std::string::operator=(a1, "Windows CE");
        *a2 = 201;
      }
      goto LABEL_35;
    }
    if ( VersionInformation.dwMajorVersion == 4 )
    {
      v3 = VersionInformation.dwMinorVersion == 10;
      if ( VersionInformation.dwMinorVersion < 0xA )
      {
        if ( LOWORD(VersionInformation.dwBuildNumber) == 950 )
        {
          std::string::operator=(a1, "Windows 95");
          *a2 = 1;
          goto LABEL_35;
        }
        if ( (unsigned int)LOWORD(VersionInformation.dwBuildNumber) - 951 <= 0x81 )
        {
          std::string::operator=(a1, "Windows 95 SP1");
          *a2 = 2;
          goto LABEL_35;
        }
        if ( LOWORD(VersionInformation.dwBuildNumber) > 0x438u )
        {
          std::string::operator=(a1, "Windows 95 OSR2");
          *a2 = 3;
          goto LABEL_35;
        }
        v3 = VersionInformation.dwMinorVersion == 10;
      }
      if ( v3 )
      {
        if ( LOWORD(VersionInformation.dwBuildNumber) == 1998 )
        {
          std::string::operator=(a1, "Windows 98");
          *a2 = 4;
        }
        else if ( (unsigned int)LOWORD(VersionInformation.dwBuildNumber) - 1999 > 0xB7 )
        {
          if ( LOWORD(VersionInformation.dwBuildNumber) >= 0x887u )
          {
            std::string::operator=(a1, "Windows 98 SE");
            *a2 = 6;
          }
        }
        else
        {
          std::string::operator=(a1, "Windows 98 SP1");
          *a2 = 5;
        }
      }
      else if ( VersionInformation.dwMinorVersion == 90 )
      {
        std::string::operator=(a1, "Windows ME");
        *a2 = 7;
      }
    }
LABEL_35:
    result = 1;
  }
  return result;
}