qt 获取网关

绝地灬酷狼 2022-06-10 03:24 192阅读 0赞

static  void getGateway( QString &gateway)

{

QProcess cmd_pro ;

QString cmd_str = QString("route print");

cmd_pro.start("cmd.exe", QStringList() << "/c" << cmd_str);

cmd_pro.waitForStarted();

cmd_pro.waitForFinished();

QString result = cmd_pro.readAll();

QString pattern("0\.0\.0\.0 *(0|128)\.0\.0\.0 *([0-9\.]*)");

QRegExp rx(pattern);

int pos = result.indexOf(rx);

if (pos >= 0)

{

qDebug()<<"reg::"<<rx.cap(2);

gateway = rx.cap(2);

}

}
    
    另一种用windowsAPI实现，但是windows10 下用无线连接获取失败
    static void getGateway(QString &netmask, QString &gateway) {
           PIP_ADAPTER_INFO pIpAdapterInfo = new IP_ADAPTER_INFO();     unsigned long stSize = sizeof(IP_ADAPTER_INFO);     int nRel = GetAdaptersInfo(pIpAdapterInfo,&stSize);     if (ERROR_BUFFER_OVERFLOW == nRel){
               delete pIpAdapterInfo;         pIpAdapterInfo = (PIP_ADAPTER_INFO)new BYTE[stSize];         nRel=GetAdaptersInfo(pIpAdapterInfo,&stSize);     }     if (ERROR_SUCCESS == nRel){
               while (pIpAdapterInfo){
                   switch(pIpAdapterInfo->Type){
                   case MIB_IF_TYPE_OTHER:                 break;             case MIB_IF_TYPE_ETHERNET:                 break;             case MIB_IF_TYPE_TOKENRING:                 break;             case MIB_IF_TYPE_FDDI:                 break;             case MIB_IF_TYPE_PPP:                 break;             case MIB_IF_TYPE_LOOPBACK:                 break;             case MIB_IF_TYPE_SLIP:                 break;             default:                 break;             }             for (DWORD i = 0; i < pIpAdapterInfo->AddressLength; i++)                 if (i < pIpAdapterInfo->AddressLength-1){
                       }                 else{
                       }             IP_ADDR_STRING *pIpAddrString =&(pIpAdapterInfo->IpAddressList);             do{
                       if(QString(pIpAddrString->IpAddress.String) == getHostIpByWinSock()){
                           gateway = QString(pIpAdapterInfo->GatewayList.IpAddress.String);                     //netmask = QString(pIpAdapterInfo->IpAddressList.IpMask.String);                     return;                 }                 pIpAddrString=pIpAddrString->Next;             } while (pIpAddrString);             pIpAdapterInfo = pIpAdapterInfo->Next;         }     }     if (pIpAdapterInfo){
               delete pIpAdapterInfo;     }     gateway = QString("0.0.0.0"); }