SFTP Authenticate with a SecureString Password

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Demonstrates the Chilkat SFtp.AuthenticateSecPw method, which authenticates using SecureString login and password objects. The first argument is the login and the second is the password.

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

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

    // Demonstrates the SFtp.AuthenticateSecPw method, which authenticates using SecureString login
    // and password objects.  The 1st argument is the login and the 2nd is the password.

    const sftp = try chilkat.SFtp.init();
    defer sftp.deinit();

    // Step 1: Connect the SSH transport.  Port 22 is the usual port.
    const port = 22;
    sftp.connect("sftp.example.com", port) catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    // Normally you would not hard-code the password in source.  You should instead obtain it
    // from an interactive prompt, environment variable, or a secrets vault.
    const password = "mySshPassword";

    // Place the login and password into SecureString objects.
    const secure_login = try chilkat.SecureString.init();
    defer secure_login.deinit();
    secure_login.append("mySshLogin") catch {};
    const secure_password = try chilkat.SecureString.init();
    defer secure_password.deinit();
    secure_password.append(password) catch {};

    sftp.authenticateSecPw(secure_login, secure_password) catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    // Step 3: Open the SFTP subsystem.  This must be done after authentication and before any
    // file or directory operations.
    sftp.initializeSftp() catch {
        std.debug.print("{s}\n", .{try sftp.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Authenticated with secure strings.\n", .{});

    sftp.disconnect();
}