Rust网络编程(2)-IpAddr和SocketAddr使用

IpAddr和SocketAddr使用

1. IpAddr

use std::net::{IpAddr,Ipv4Addr,Ipv6Addr};
fn main() {
    let v4 = IpAddr::V4(Ipv4Addr::new(127,0,0,1));
    let v6 = IpAddr::V6(Ipv6Addr::new(0,0,0,0,0,0,0,1));
    assert_eq!("127.0.0.1".parse(),Ok(v4));
    assert_eq!("::1".parse(),Ok(v6));

    assert_eq!(v4.is_loopback(),true);
    assert_eq!(v6.is_loopback(),true);
    assert_eq!(IpAddr::V4(Ipv4Addr::new(192,168,0,1)).is_loopback(),false);

    assert_eq!(v4.is_multicast(),false);
    assert_eq!(v6.is_multicast(),false);
    assert_eq!(IpAddr::V4(Ipv4Addr::new(224,254,0,0)).is_multicast(),true);

    assert_eq!(v4.is_ipv4(),true);
    assert_eq!(v6.is_ipv6(),true);
}

2. SocketAddr

SocketAddr和IpAddr区别：需要绑定端口才能运行

use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
fn main() {
    let mut v4 = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127,0,0,1)),8080);
    let mut v6 = SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0,0,0,0,0,65535,0,1)),8080);

    assert_eq!(v4.ip(),IpAddr::V4(Ipv4Addr::new(127,0,0,1)));

    v4.set_ip(IpAddr::V4(Ipv4Addr::new(192,168,0,1)));
    v6.set_ip(IpAddr::V6(Ipv6Addr::new(0,0,0,0,0,65535,0,1)));

    assert_eq!(v4.ip(),IpAddr::V4(Ipv4Addr::new(192,168,0,1)));
    assert_eq!(v4.port(),8080);

    v4.set_port(1025);
    v6.set_port(1025);

    assert_eq!(v4.is_ipv4(),true);
    assert_eq!(v6.is_ipv4(),false);

    assert_eq!(v4.is_ipv6(),false);
    assert_eq!(v6.is_ipv6(),true);
}

总结

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