1. If you haven't done it already in the last chapter, open the Cargo.toml file that was generated earlier for you.

2. Under [dependencies], add the following line:

byteorder = "1.1.0"

3. If you want, you can go to byteorder's crates.io page (https://crates.io/crates/byteorder) to check for the newest version and use that one instead.

4. In the bin folder, create a file called binary_files.rs.

5. Add the following code and run it with cargo run --bin binary_files:

1    extern crate byteorder;
2    use byteorder::{ByteOrder, ReadBytesExt, WriteBytesExt, BE,
     LE};
3    use std::fs::File;
4    use std::io::{self, BufReader, BufWriter, Read};
5    use std::io::prelude::*;
6 
7 
8    fn main() {
9      let path = "./bar.bin";
10     write_dummy_protocol(path).expect("Failed write file");
11     let payload = read_protocol(path).expect("Failed to read
         file");
12     print!("The protocol contained the following payload...