Route Socket Connections through an SSH Object

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Demonstrates Socket.UseSsh, which configures a socket to route subsequent Connect calls through an already connected and authenticated Ssh object using SSH port forwarding.

let ssh = chilkat::Ssh::new();

// Connect and authenticate a standalone SSH object.
if ssh.connect("ssh.example.com", 22).is_err() {
    println!("{}", ssh.last_error_text());
    return;
}

// The SSH password should come from a secure source rather than being hard-coded.
let ssh_password = "mySshPassword".to_string();
if ssh.authenticate_pw("sshUser", &ssh_password).is_err() {
    println!("{}", ssh.last_error_text());
    return;
}

let socket = chilkat::Socket::new();

// Route subsequent Connect calls through the already connected and authenticated SSH object.  The
// destination is reached by SSH port forwarding rather than by a direct TCP connection.
if socket.use_ssh(&ssh).is_err() {
    println!("{}", socket.last_error_text());
    return;
}

// Connect to the destination through the SSH tunnel.
let b_tls = false;
let max_wait_ms = 5000;
if socket.connect("db.internal", 5432, b_tls, max_wait_ms).is_err() {
    println!("{}", socket.last_error_text());
    return;
}

println!("Connected to the destination through the SSH tunnel.");