Get userName from IP address

[AP81]

I have written a client server chat App using UDP (Indy Components). I am having problems getting the username of the user who sends a message (not the local computer username).

What I need is a function like this:

GetUserNameFromIP(sIPAddress) : String;

I can get the IP address and Host Name, but this doesn't help me, as my end result needs to pop up a message like this:

Message from : [adam]

Message here


Any ideas?


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There's no place like 127.0.0.1
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[Griffyn]

A machine may have many usernames. There may be a local Windows username, which gives access to a desktop and local files and there may be one or many domain logins with possibly different usernames. Being able to determine any of these usernames from a base windows install is unlikely.

You could easily write a small app that when interrogated via TCP returns the USERNAME environment string of the machine - this holds the current local username.

You may have more luck with interogating the local DHCP server - this would have a nice list of IP and MAC addresses, and possibly usernames as well.

 

[BobbaFet]

You could of course have the client send the required
username to the server.

BobbaFet

if not Programming = 'Severe Migraine' then
                       ShowMessage('Eureka!');