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//! Example of using iterators that print paquet
use pcap::{Capture, Device, Packet, PacketCodec, PacketHeader};
use std::error;
/// Represents a owned packet
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct PacketOwned {
pub header: PacketHeader,
pub data: Box<[u8]>,
}
/// Simple codec that tranform [`pcap::Packet`] into [`PacketOwned`]
pub struct Codec;
impl PacketCodec for Codec {
type Item = PacketOwned;
fn decode(&mut self, packet: Packet) -> Self::Item {
PacketOwned {
header: *packet.header,
data: packet.data.into(),
}
}
}
fn main() -> Result<(), Box<dyn error::Error>> {
let device = Device::lookup()?.ok_or("no device available")?;
// get the default Device
println!("Using device {}", device.name);
let cap = Capture::from_device(device)?.immediate_mode(true).open()?;
for packet in cap.iter(Codec) {
let packet = packet?;
println!("{:?}", packet);
}
Ok(())
}
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