反向便利port_group 代码
snort
if(port_group->pgHead)
    {
        port_group->pgTail = port_group->pgHead;
        while(port_group->pgTail->rnNext)
        {
            OptTreeNode *otn = (OptTreeNode *)port_group->pgTail->rnRuleData;
            if(otn)
            {
                LogMessage("%d match SID \n",otn->sigInfo.id);
            }
            port_group->pgTail = port_group->pgTail->rnNext;
        }
    }