Delphi DLL

SSH Commands to Cisco Switch

See more SSH Examples

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

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

...

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

begin
success := False;

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

ssh := CkSsh_Create();

success := CkSsh_Connect(ssh,'172.16.16.100',22);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    Exit;
  end;

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

// Start a shell session.
channelNum := CkSsh_QuickShell(ssh);
if (channelNum < 0) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    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 := CkSsh_ChannelReceiveUntilMatch(ssh,channelNum,'#','utf-8',True);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    Exit;
  end;

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

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

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

// Send another command and get the output, and so on...
success := CkSsh_ChannelSendString(ssh,channelNum,'some other command' + #10,'utf-8');
success := CkSsh_ChannelReceiveUntilMatch(ssh,channelNum,'#','utf-8',True);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkSsh__lastErrorText(ssh));
    Exit;
  end;
Memo1.Lines.Add(CkSsh__getReceivedText(ssh,channelNum,'utf-8'));

CkSsh_Disconnect(ssh);

CkSsh_Dispose(ssh);

end;