介紹
// IpAddr結構體定義:
pub enum IpAddr {
V4(Ipv4Addr),
V6(Ipv6Addr),
}
使用示例
use std::net::{IpAddr, Ipv4Addr, Ipv6Addr};
fn main() {
let localhost_v4 =
IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1));
let localhost_v6 =
IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));
assert_eq!("127.0.0.1".parse(), Ok(localhost_v4));
assert_eq!("::1".parse(), Ok(localhost_v6));
//判斷是否是環回位址
assert_eq!(localhost_v4.is_loopback(), true);
assert_eq!(localhost_v6.is_loopback(), true);
assert_eq!(IpAddr::V4(Ipv4Addr::new(192, 168, 0, 1)).is_loopback(), false);
// //判斷是否為global位址, nightly才支援
// assert_eq!(IpAddr::V4(Ipv4Addr::new(80, 9, 12, 3)).is_global(), true);
// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1)).is_global(), true);
//是否為多點傳播位址
assert_eq!(IpAddr::V4(Ipv4Addr::new(224, 254, 0, 0)).is_multicast(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0)).is_multicast(), true);
//是否為ipv4
assert_eq!(localhost_v4.is_ipv4(), true);
assert_eq!(localhost_v6.is_ipv4(), false);
//是否為ipv6
assert_eq!(localhost_v6.is_ipv6(), true);
assert_eq!(localhost_v4.is_ipv6(), false);
println!("Hello, world!");
}