#![no_std]
#![no_main]

use lancer_user::net;
use lancer_user::syscall;

#[unsafe(no_mangle)]
pub extern "C" fn lancer_main() -> ! {
    let (rx, _tx) = match net::init() {
        Some(pair) => pair,
        None => {
            lancer_user::show!(net, error, "netsock init failed");
            syscall::exit();
        }
    };

    let mut args_buf = [0u8; 256];
    let args_len = net::recv_args(&rx, &mut args_buf);
    let args = &args_buf[..args_len];

    let space_pos = (0..args.len()).find(|&i| args[i] == b' ');
    let payload = match space_pos {
        Some(pos) => &args[pos + 1..],
        None => &[],
    };

    if !payload.is_empty() {
        lancer_user::io::write_bytes(payload);
    }
    lancer_user::io::write_bytes(b"\n");

    syscall::exit()
}