tcpdump.rs

#![feature(never_type)]

use std::io;

use pnet::{
  packet::ip::IpNextHeaderProtocols,
  transport::{ipv4_packet_iter, transport_channel, TransportChannelType},
};

fn main() -> Result<!, io::Error> {
  let (_, mut rx) =
    transport_channel(64, TransportChannelType::Layer3(IpNextHeaderProtocols::Tcp))?;
  let mut iter = ipv4_packet_iter(&mut rx);
  loop {
    match iter.next() {
      Ok((packet, source)) => {
        println!("{:?}: {:?}", source, packet);
      }
      Err(e) => println!("{:?}", e),
    }
  }
}