(MFC) 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 C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkSsh.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkSsh ssh;

    bool success = ssh.Connect("172.16.16.100",22);
    if (success != true) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Authenticate using login/password:
    success = ssh.AuthenticatePw("myLogin","myPassword");
    if (success != true) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Start a shell session.
    int channelNum = ssh.QuickShell();
    if (channelNum < 0) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // 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",true);
    if (success != true) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Show what we received so far:
    strOut.append(ssh.getReceivedText(channelNum,"utf-8"));
    strOut.append("\r\n");

    // Send a "show clock" command.
    success = ssh.ChannelSendString(channelNum,"show clock\n","utf-8");

    // Read the output to the next interactive prompt.
    success = ssh.ChannelReceiveUntilMatch(channelNum,"#","utf-8",true);
    if (success != true) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append(ssh.getReceivedText(channelNum,"utf-8"));
    strOut.append("\r\n");

    // Send another command and get the output, and so on...
    success = ssh.ChannelSendString(channelNum,"some other command\n","utf-8");
    success = ssh.ChannelReceiveUntilMatch(channelNum,"#","utf-8",true);
    if (success != true) {
        strOut.append(ssh.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append(ssh.getReceivedText(channelNum,"utf-8"));
    strOut.append("\r\n");

    ssh.Disconnect();


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }