gistfile1.txt

    let args: Vec<String> = env::args().collect();
    if args.len() != 2 {
        println!("Usage: {} <hostname>", args[0]);
        process::exit(1);
    }

    let mut hostname = &args[1].clone().to_string();
    let mut steps = vec![render_simple(hostname.clone())];

    let mut zone_steps: Vec<String> = Vec::new();

    let types = [Rtype::Cname, Rtype::A];

    for rtype in types.iter() {
        let results = match probe_records(hostname.clone(), *rtype) {
            Ok(o) => o,
            Err(e) => {
                println!("Error: {:?}", e);
                continue;
            },
        };
        if *rtype == Rtype::Cname {
            let mut text = vec!("CNAME Record".to_string());
            if results.len() > 1 {
                println!("WARN: Multiple CNAME records for {}!", hostname);
            } else if results.len() == 0 {
                continue;
            }
            text.extend(results.clone());
            steps.push(render_complex(text));
            hostname = &results[0].clone();
            continue;
        }
        if *rtype == Rtype::A {
            let mut text = vec!("A Record".to_string());
            text.extend(results.clone());
            steps.push(render_complex(text));
        }
    }