igd 0.12.1

Internet Gateway Protocol client
Documentation 
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use std::env;
use std::net::SocketAddrV4;

extern crate igd;

fn main() {
    match igd::search_gateway(Default::default()) {
        Err(ref err) => match *err {
            igd::SearchError::IoError(ref ioe) => println!("IoError: {}", ioe),
            _ => println!("{:?}", err),
        },
        Ok(gateway) => {
            let args: Vec<_> = env::args().collect();
            if args.len() != 4 {
                println!("Usage: add_remove <local_ip> <local_port> <remote_port>");
                return;
            }
            let local_ip = args[1].parse().expect("Invalid IP address");
            let local_port = args[2].parse().expect("Invalid local port");
            let remote_port = args[3].parse().expect("Invalid remote port");

            let local_addr = SocketAddrV4::new(local_ip, local_port);

            match gateway.add_port(igd::PortMappingProtocol::TCP, remote_port, local_addr, 60, "crust") {
                Err(ref err) => println!("{:?}", err),
                Ok(()) => {
                    println!("AddPortMapping successful.");
                    match gateway.remove_port(igd::PortMappingProtocol::TCP, remote_port) {
                        Err(ref err) => println!("Error removing: {:?}", err),
                        Ok(_) => println!("DeletePortMapping successful."),
                    }
                }
            }
        }
    }
}