Solved

VB6 Telnet

Posted on 2010-08-14
11
837 Views
Last Modified: 2012-06-22
Below is the code I am currently using to -

1) Connect to a router
2) Issue a command
3) Disconnect

What I want to do is -

1) Connect to a router
2) Issue a command
3) Output the routers response to a textbox
4) Exit

I have a number of command buttons and want to output the routers responce in seperate textboxes when they are clicked.



Private Sub Winsock1_Connect()
   Winsock1.SendData "admin" & vbCrLf
End Sub

Private Sub Connect_Click()
    h% = FreeFile
      Open "C:\Router.cfg" For Input As #h%
      Line Input #h%, IPAdr$(1)
      Close #h%
      lblIP(0).Caption = IPAdr$(1)
     
    Winsock1.Close
    Winsock1.Connect (IPAdr$(1)), 23
End Sub

Private Sub Nine_Click()
            If Winsock1.State = 0 Then
            PleaseConnect.Show
            Else
    Winsock1.SendData "powerdown" & vbCrLf
    End If
End Sub

Private Sub Disconnect_Click()
    Winsock1.Close
End Sub


Please make this as simple as possible :-s
0
Comment
Question by:souldigital
  • 6
  • 5
11 Comments
 
LVL 32

Expert Comment

by:DrDamnit
ID: 33439237
It's pretty easy. Just use a loop and the receive data method of Winsock1 to build a string until you get the CRLF from the sending box. Then, output the string.

http://msdn.microsoft.com/en-us/library/ms740120%28VS.85%29.aspx
0
 

Author Comment

by:souldigital
ID: 33443988
Not 100% on this please can you provide some really simplified code?
0
 
LVL 32

Expert Comment

by:DrDamnit
ID: 33445779
I have some, but it is in a backup from 2 or 3 years ago. Let me see if I can find it. No promises....

Have considered moving to .NET? It's a lot easier (once you get over the learning curve), and VB6 is not only end of life'd, but won't run on Vista / 7.
0
 

Author Comment

by:souldigital
ID: 33447133
I only use it now and again for little apps so have never really looked into it. That would be great if you could.

Cheers,

Ben
0
 

Author Comment

by:souldigital
ID: 33466681
Any update on this guys?
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 

Author Comment

by:souldigital
ID: 33473320
What would be good is if the code could do the following -

1) Connect to a router

2) Issue a command
3) Output the routers response to a text file

4) Issue another command
5) Output the routers response to another text file

6) Exit

As above I only need to know how to do 2,3,4 and 5.

Any ideas???????????
0
 
LVL 32

Expert Comment

by:DrDamnit
ID: 33483779
I forgot I used to use cSocket becaues it was vastly superior in every way to Winsock (it can be programmed into a class).


vbami.txt
0
 
LVL 32

Expert Comment

by:DrDamnit
ID: 33483780
All you need from there is this loop:

Private Sub oSocket_OnDataArrival(ByVal bytesTotal As Long)
    Dim strBuffer As String
    strBuffer = Space(bytesTotal)
    oSocket.GetData strBuffer, , bytesTotal
    Debug.Print (strBuffer)
    ProcessMessage (strBuffer)
End Sub

0
 
LVL 32

Expert Comment

by:DrDamnit
ID: 33483784
You just need to receive until you get to vbCrLf in a row that indicate it is done talking for the moment.
0
 

Author Comment

by:souldigital
ID: 33495178
Way to complex for me. Surely there is an easier way with winsock?
0
 
LVL 32

Accepted Solution

by:
DrDamnit earned 500 total points
ID: 33496227
It's not complex. You just didn't look for the parts that are applicable to you.

anyway... try this:

http://www.15seconds.com/issue/010820.htm

The concept is to concatenate the arrival strings until you get a double vbcrlf, which should signal the end of that transmission. Of course, you may not be getting a double VBCRLF from whatever you're talking to. You have to figure out what the end of transmission bytes are for your application.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Have you ever wanted to restrict the users input in a textbox to numbers, and while doing that make sure that they can't 'cheat' by pasting in non-numeric text? Of course you can do that with code you write yourself but it's tedious and error-prone …
You can of course define an array to hold data that is of a particular type like an array of Strings to hold customer names or an array of Doubles to hold customer sales, but what do you do if you want to coordinate that data? This article describes…
As developers, we are not limited to the functions provided by the VBA language. In addition, we can call the functions that are part of the Windows operating system. These functions are part of the Windows API (Application Programming Interface). U…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

21 Experts available now in Live!

Get 1:1 Help Now