motp 0.1.0

A crate to interact with mOTP (creation & verification)
Documentation 
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extern crate clap;

use std::io::{self, Read};

use clap::{App, Arg};

mod lib;

fn main() {
    let matches = App::new("mOTP-rs")
        .version("0.1")
        .author("Paul O. <contact@paulollivier.fr>")
        .about("mOTP tokens manipulation")
        .arg(
            Arg::with_name("SECRET")
                .help("Shared secret to use")
                .required(true)
                .index(1),
        )
        .arg(
            Arg::with_name("PIN")
                .short("p")
                .long("pin")
                .help("Pin code. If not given, will be expected via stdin.")
                .required(false).takes_value(true),
        )
        .get_matches();

    let secret = matches.value_of("SECRET").unwrap();
    let pin = match matches.is_present("PIN") {
        true => String::from(matches.value_of("PIN").unwrap()),
        false => {
            let mut pin = String::new();
            io::stdin()
                .read_line(&mut pin)
                .expect("coult not read anything from stdin");
            pin
        }
    };

    print!("{}", lib::create_otp(secret, &pin));
}