Function modify_grant_table

sql/sql_acl.cc:10345–10374

*/

static int modify_grant_table(TABLE *table, Field *host_field,
                              Field *user_field, LEX_USER *user_to)
{
  int error;
  DBUG_ENTER("modify_grant_table");

  if (user_to)
  {
    /* rename */
    store_record(table, record[1]);
    host_field->store(user_to->host.str, user_to->host.length,
                      system_charset_info);
    user_field->store(user_to->user.str, user_to->user.length,
                      system_charset_info);
    if (unlikely(error= table->file->ha_update_row(table->record[1],
                                                   table->record[0])) &&
        error != HA_ERR_RECORD_IS_THE_SAME)
      table->file->print_error(error, MYF(0));
    else
      error= 0;
  }
  else
  {
    /* delete */
    if (unlikely((error=table->file->ha_delete_row(table->record[0]))))
      table->file->print_error(error, MYF(0));
  }

  DBUG_RETURN(error);
}

/*
  Handle the roles_mapping privilege table