Route Socket Connections through an SSH Object

See more Socket/SSL/TLS Examples

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

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    const ssh = try chilkat.Ssh.init();
    defer ssh.deinit();

    // Connect and authenticate a standalone SSH object.
    ssh.connect("ssh.example.com", 22) catch {
        std.debug.print("{s}\n", .{try ssh.getLastErrorText(alloc)});
        return;
    };

    // The SSH password should come from a secure source rather than being hard-coded.
    const ssh_password = "mySshPassword";
    ssh.authenticatePw("sshUser", ssh_password) catch {
        std.debug.print("{s}\n", .{try ssh.getLastErrorText(alloc)});
        return;
    };

    const socket = try chilkat.Socket.init();
    defer socket.deinit();

    // 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.
    socket.useSsh(ssh) catch {
        std.debug.print("{s}\n", .{try socket.getLastErrorText(alloc)});
        return;
    };

    // Connect to the destination through the SSH tunnel.
    const b_tls = false;
    const max_wait_ms = 5000;
    socket.connect("db.internal", 5432, b_tls, max_wait_ms) catch {
        std.debug.print("{s}\n", .{try socket.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Connected to the destination through the SSH tunnel.\n", .{});
}