File: get_rule.rs

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rust-rtnetlink 0.14.1-3
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// SPDX-License-Identifier: MIT
#![cfg(feature = "tokio_socket")]

use futures::stream::TryStreamExt;
use rtnetlink::{new_connection, Error, Handle, IpVersion};

#[tokio::main]
async fn main() -> Result<(), ()> {
    let (connection, handle, _) = new_connection().unwrap();
    tokio::spawn(connection);

    println!("dumping rules for IPv4");
    if let Err(e) = dump_addresses(handle.clone(), IpVersion::V4).await {
        eprintln!("{e}");
    }
    println!();

    println!("dumping rules for IPv6");
    if let Err(e) = dump_addresses(handle.clone(), IpVersion::V6).await {
        eprintln!("{e}");
    }
    println!();

    Ok(())
}

async fn dump_addresses(
    handle: Handle,
    ip_version: IpVersion,
) -> Result<(), Error> {
    let mut rules = handle.rule().get(ip_version).execute();
    while let Some(rule) = rules.try_next().await? {
        println!("{rule:?}");
    }
    Ok(())
}