get list of NIC

main.rs

use nix::ifaddrs;
fn main() {
    println!("Hello, world!");
    let addrs = nix::ifaddrs::getifaddrs().unwrap();
    for ifaddr in addrs {
        match ifaddr.address {
            Some(address) => {
                println!("interface {} address {}", ifaddr.interface_name, address);
            }
            None => {
                println!(
                    "interface {} with unsupported address family",
                    ifaddr.interface_name
                );
            }
        }
    }
}