(Delphi ActiveX) SSH Commands to Cisco Switch

Demonstrates how to establish an SSH session with a Cisco switch (or something similar) and send commands in a device console session.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
ssh: TChilkatSsh;
success: Integer;
channelNum: Integer;

begin
// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

ssh := TChilkatSsh.Create(Self);

success := ssh.Connect('172.16.16.100',22);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// Authenticate using login/password:
success := ssh.AuthenticatePw('myLogin','myPassword');
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// Start a shell session.
channelNum := ssh.QuickShell();
if (channelNum < 0) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// If the CISCO switch returns a prompt with "#", then read until we get the prompt.
// (It's not actually required that we do this, but it helps to know that all is OK at this point..)
success := ssh.ChannelReceiveUntilMatch(channelNum,'#','utf-8',1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;

// Show what we received so far:
Memo1.Lines.Add(ssh.GetReceivedText(channelNum,'utf-8'));

// Send a "show clock" command.
success := ssh.ChannelSendString(channelNum,'show clock' + #10,'utf-8');

// Read the output to the next interactive prompt.
success := ssh.ChannelReceiveUntilMatch(channelNum,'#','utf-8',1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add(ssh.GetReceivedText(channelNum,'utf-8'));

// Send another command and get the output, and so on...
success := ssh.ChannelSendString(channelNum,'some other command' + #10,'utf-8');
success := ssh.ChannelReceiveUntilMatch(channelNum,'#','utf-8',1);
if (success <> 1) then
  begin
    Memo1.Lines.Add(ssh.LastErrorText);
    Exit;
  end;
Memo1.Lines.Add(ssh.GetReceivedText(channelNum,'utf-8'));

ssh.Disconnect();
end;