Detecting your hub software

There exist many hubs for NMDC, and for ADC. Although the amount of hubs supporting the former is greater, the latter is increasing.

As hubs get developed, they are intended for an audience, and the hub developer will try to market the software so more people will use the hub.

One of the market tricks hub developers use is that they will broadcast what the hub is called, when your client connect to the hub. You’ve seen it; “This hub is using DCH++” or some other type of message.

Though, the target audience is not just the normal users of the hub. It is also a hub list. The hub list can then, through either a website or the actual hub list file, broadcast what hub is being used. This is great advertisement, as the hub developer don’t need to do any active marketing.

However, the hub list isn’t composed of some guy in a basement manually typing the hub software used. Hub lists use programs to determine the hub software. This mean that the program need to look at a specific pattern to identify a hub.

When a client connects to a hub, the hub will broadcast the software. As we have two different protocols, we have two different methods of doing so. In NMDC, the hub list will check the $Lock the hub send. Respectively in ADC, the hub list will look at the VE parameter in the INF.

To do this effectively, Gadget (one of the people behind Hublist.org) published Visual Basic code to be able to parse the information in the lock, so it’s NMDC. But it shouldn’t be very difficult for you to replace the “$Lock” stuff with “VE” or some such. In the code, regular expressions are used, so you need to find the corresponding function in your language to do the same thing.

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