1 use std::net::UdpSocket;
 2 
 3 
 4 pub fn get() -> Option<String> {
 5     let socket = match UdpSocket::bind("0.0.0.0:0") {
 6         Ok(s) => s,
 7         Err(_) => return None,
 8     };
 9 
10     match socket.connect("8.8.8.8:80") {
11         Ok(()) => (),
12         Err(_) => return None,
13     };
14 
15     match socket.local_addr() {
16         Ok(addr) => return Some(addr.ip().to_string()),
17         Err(_) => return None,
18     };
19 }

use local_ipaddress;

fn main() {
    println!("{}", local_ipaddress::get().unwrap());
}