func main[] : i64
    let s: i64 = must(net.listen?(net.pack_addr(127, 0, 0, 1), 8000))

    io.println("Listening on port 8000...")
    let resp = mem.alloc(60000)
    let addr = mem.alloc(16)
    while true
        let conn = net.accept(s, addr)
        if conn < 0
            continue

        io.printf("%d.%d.%d.%d:%d\n", addr[4], addr[5], addr[6], addr[7], mem.read16be(addr + 2))

        io.print_sized(resp, n)
        io.println("")

        let n = net.read(conn, resp, 60000)
        net.send(conn, resp, n)
        net.close(conn)