Winsock, socks proxy servers, a real problem :(

[Degu]

Hello there.

I am having REAL trouble connectling through a socks 4 proxy server using winsock. I have read the RFC @ http://www.socks.nec.com/protocol/socks4.protocol and from what I can see with my code I have made no errors. But when I connect to the proxy server (I should get a response back when I send the data) and send the data telling it to connect to the remote PC, I get nothing. I send the data "14230062.112.202.23" and I have even tried "14230062.112.202.23MeNULL", no change. Here is the whole lot of code I have (very basic, its just to test it):

Private Sub Command1_Click()
Winsock1.Connect "90.0.0.1", 1080

Do Until Winsock1.State = sckConnected
DoEvents: DoEvents: DoEvents: DoEvents
If Winsock1.State = sckError Then
MsgBox "Problem connecting!"
Exit Sub
End If
Loop

Winsock1.SendData "14230062.112.202.23" '(or "14230062.112.202.23MeNULL"
End Sub


Private Sub Winsock1_DataArrival(ByVal bytesTotal As Long)
Dim strData As String
Winsock1.GetData strData
MsgBox strData
End Sub

I hope someone who may understand the RFC better than me an tell me where I am going wrong.

Thanks for reading this rather long winded problem

Will (aka Degu)

[csammis]

I don't know beans about Socks4, but I'm going to give some advice that I've given with socket programming in the past

Don't use that DoEvents loop. Wait for the "Connect" event to fire to send your string. The point of the Winsock control, VB, and even Windows is event driven programming. I've seen cases where the string being sent is okay, but the connection/sending code is screwing up. Like I said, never tried Socks4, but cleaning up the code may help!

[Degu]

Thanks very much

I'm now useing that event in my program, no change to the result when conencting to the proxy server, but it looks a little neater.

Thanks again.

Degu