nbtstat from Java app

[themanfalconar]

Hi there,

Is there a way to check the NetBIOS connections of a particular host (using its hostname)? I'm writing an application that does the following:

1. Queries our user database to find the hostnames associated with that user.
2. Checks the NetBIOS connections of those hosts to see if the user has an active NetBIOS connection.

[by the way, this app runs on Windows only]

At present, the only way I can think of doing this is to execute 'nbtstat -a hostname > tempfile.tmp' as a system command within the Java app, then parse the tempfile and attempt to match the username with the text in the file.

I think that this is a pretty shabby way of doing it, and so I'm wondering if any of you guys/gals can think of a better way.

Many thanks in advance,

Dan

 

[stefanwagner]

You could try to use the NetBios-Port (I only know it from internet-worms, allways trying to connect me on that port) with a socket, but I guess MS didn't open the source of their netbios protocoll, to do much further.

Perhaps the samba-people have this know-how, but I guess it's not java, but c/ c++.

seeking a job as java-programmer in Berlin:

http://home.arcor.de/hirnstrom/bewerbung

 

[themanfalconar]

Thanks for your post. Do you have any idea how I can actually use this NetBIOS port? I'm completely unfamiliar with the concept.

It seems that I'm also have trouble using the method I suggested, i.e. redirecting the output of the nbtstat command to a text file and then reading that... The problem I am having in this case is that the nbtstat command takes a few seconds to actually finish and hence create the file that needs to be checked. I've had to implement a 'wait' section of the program to wait for the file to appear. This, however, is proving problematic and is really slow.

Please, please, someone come up with a better solution than this... I'm sure there must be one. Are there no IP tools for Java?

Regards,

Dan Falconar

 

[sedj]

>>>>Are there no IP tools for Java?

Perhaps :

http://java.sun.com/j2se/1.3/docs/api/java/net/InetAddress.html

As Stefan said earlier, this is a more C/C++ issue- the standard Java kit (SDK) does not provide many APIs for interfacing with the base OS, because ths is not what Java is about - mainly die to the fact that most OS interface code is not platform independant.

In short, you're in the wrong forum. You need to write some C to sort this problem, not Java.

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