use luks2::LuksDevice;
use std::{
    fs::File,
    io::{Cursor, Read},
};

fn main() {
    // create example.iso via `fallocate -l 16M example.iso && cryptsetup luksFormat example.iso` with the password "password"
    let path = format!("{}/examples/example.iso", env!("CARGO_MANIFEST_DIR"));
    let mut f = File::open(path).expect("could not open example.iso; did you create it?");
    let mut buf = vec![0; 16 * 1024 * 1024];
    f.read_exact(&mut buf)
        .expect("could not read from example.iso");
    let f = Cursor::new(buf);

    let luks_dev = LuksDevice::from_device(f, b"password", 512).expect("could not create device");

    println!("{}", luks_dev.header);
    println!("{:#?}", luks_dev.json);
}