.exe causes an illegal operation when attempting to access TCP/IP details

[GKFC]

If there is nothing there (i.e. TCP/IP has been removed from the Network section of the computer), the following code breaks and the executable crashes.

Putting TCP/IP back in fixes the problem it seems.

Is there an error check that could be put in to prevent this?

Cheers.


//create a new Inet object to access the network configuration of the computer, if there is any set up
var inet = new Inet();

//ic: the network configuration of the computer
var ic = inet.getIPConfig();

//netsettings: gets set if any extra network settings are detected
var netsettings = false;

//check each network interface, and if one or more exist that are not just the local loopback, ask the user if they are sure about continuing.
for (i = 0; i < ic.ifNum; i++) {
var ip = ic.ifIP(i);
if ((ip.toString() != '127.0.0.1') && (ip.toString() != '0.0.0.0') && (ip.toString().indexOf('169.254.') != 0)){
netsettings = true;
}
}

[Umpa]

you can check the object for validity before attempting to use it.

//create a new Inet object to access the network configuration of the computer, if there is any set up
var inet = new Inet();

if (!inet=="undefined"){

    //ic: the network configuration of the computer
    var ic = inet.getIPConfig();

    //netsettings: gets set if any extra network settings are detected
    var netsettings = false;

    //check each network interface, and if one or more exist that are not just the local loopback, ask the user if they are sure about continuing.
    for (i = 0; i < ic.ifNum; i++) {
       var ip = ic.ifIP(i);
       if ((ip.toString() != '127.0.0.1') && (ip.toString() != '0.0.0.0') && (ip.toString().indexOf('169.254.') != 0)){
          netsettings = true;
       }
    }
}
else{
    //do something here if the inet object couldn't be created.
}

Actually suprised that you are running into machines that don't use IP in some fashion.

-Umpa

[GKFC]

yeah i know, tell me about it....

cheers, will look into that.