pub fn name_to_index(name: IfName) -> Result<InterfaceId, Error>Expand description
Converts a network interface name to the index.
This function just uses libc. May be a blocking call.
Examples found in repository?
examples/if_nametoindex.rs (line 18)
3fn main() {
4 let args = std::env::args().collect::<Vec<_>>();
5 if args.len() < 2 {
6 println!("Usage: {} <if_index>", &args[0]);
7 std::process::exit(1);
8 }
9
10 let name = match IfName::new(args[1].clone()) {
11 Ok(n) => n,
12 _ => {
13 eprintln!("{}: Invalid interface name", &args[0]);
14 std::process::exit(1);
15 }
16 };
17
18 match name_to_index(name) {
19 Ok(id) => {
20 println!("{}", id);
21 },
22 _ => {
23 eprintln!("{}: No such interface", args[0]);
24 std::process::exit(2);
25 }
26 }
27}