Function encryption_plugin_backup_init

extra/mariabackup/encryption_plugin.cc:93–203

void encryption_plugin_backup_init(MYSQL *mysql)
{
  MYSQL_RES *result;
  MYSQL_ROW row;
  std::ostringstream oss;
  char *argv[PLUGIN_MAX_ARGS];
  char show_query[1024] = "";
  std::string plugin_load;
  int argc;

  result = xb_mysql_query(mysql, QUERY_PLUGIN, true, true);
  while ((row = mysql_fetch_row(result)))
  {
    char *name= row[0];
    char *library= row[1];
    char *dir= row[2];

    if (!plugin_load.length())
    {
#ifdef _WIN32
      for (char *p = dir; *p; p++)
        if (*p == '\\') *p = '/';
#endif
      strncpy(opt_plugin_dir, dir, FN_REFLEN - 1);
      opt_plugin_dir[FN_REFLEN - 1] = '\0';
      oss << "plugin_dir=" << '"' << dir << '"' << std::endl;
    }

    plugin_load += std::string(";") + name;

    if (library)
    {
      /* Remove shared library suffixes, in case we'll prepare on different OS.*/
      const char *extensions[] = { ".dll", ".so", 0 };
      for (size_t i = 0; extensions[i]; i++)
      {
        const char *ext = extensions[i];
        if (ends_with(library, ext))
          library[strlen(library) - strlen(ext)] = 0;
      }
      plugin_load += std::string("=") + library;
    }

    if (strncmp(name, "provider_", 9) == 0)
      continue;

    /* Read plugin variables. */
    snprintf(show_query, sizeof(show_query), "SHOW variables like '%s_%%'", name);
  }
  mysql_free_result(result);
  if (!plugin_load.length())
  {
    initialize_default_encryption();
    return;
  }

  oss << "plugin_load=" << plugin_load.c_str() + 1 << std::endl;