QT, 查看局域网内在线主机的mac地址

如题， QProcess 通过 调用 windows 系统 arp.exe 并解析其获取的数据，得到其mac地址，关键代码如下(从项目中摘取，放心使用)：

//arp for mac;
    m_process->start("c:/windows/system32/arp.exe -a "+ipAddress);
    m_process->waitForStarted();
    m_process->waitForFinished();
    strOut = QString::fromLocal8Bit(m_process->readAllStandardOutput());
    if(!strOut.isEmpty() && strOut.contains(ipAddress)){
        strList = strOut.split("\r\n");
        if(strList.count() >= 4 )
        {
            strList = strList.at(3).trimmed().split(" ");
            QStringList results;
            foreach(QString result,strList)
            {
                if(!result.isEmpty() && !result.trimmed().isEmpty()){
                    results << result;
                }
            }
            if(results.count() == 3){
                mac = results.at(1).trimmed();
            }
        }
    }


    if not success(cannot arp ), method 2 -- may be self pc, use ipconfig -all; //"nbtstat.exe -A ipAddress" no effect!;
//    if(mac == UNKOWN){
//        m_process->start("c:/windows/system32/nbtstat.exe -A " + ipAddress);
//        m_process->waitForStarted();
//        m_process->waitForFinished();
//        QByteArray array = m_process->readAllStandardOutput();
//        strOut = QString::fromLocal8Bit(array);
//        if(!strOut.isEmpty() && strOut.contains(ipAddress)){
//            strList = strOut.split("\r\n");
            qDebug() << strList << endl;
//        }
//    }
    if(mac == UNKOWN){
        m_process->start("c:/windows/system32/ipconfig.exe -all");
        m_process->waitForStarted();
        m_process->waitForFinished();
        QByteArray array = m_process->readAllStandardOutput();
        strOut = QString::fromLocal8Bit(array);
        if(!strOut.isEmpty() && strOut.contains(ipAddress)){
//            strList = strOut.split("\r\n");
//            if(strList.count()>0){
//                QStringList newStrList;
//                foreach(QString str,strList){
//                    if(!str.trimmed().isEmpty()){
//                        newStrList.append(str.trimmed());
//                    }
//                }
//                if(newStrList.count()>=2){
//                    hostName = newStrList.at(1).split(':').at(1).trimmed();
//                }
//                foreach(QString s, newStrList){
//                    qDebug() << s;
//                }
//            }
            hostName = "local host";
            mac = "ipconfig -all";
        }
    }