Convert String to SocketAddr

Question

In versions of Rust before 1.0, I was able to use from_str() to convert a String to SocketAddr, but that function no longer exists. How can I do this in Rust 1.0.?

let server_details = reader.read_line().ok().expect("Something went wrong").as_slice().trim();  let server: SocketAddr = from_str(server_details);  let mut s = BufferedStream::new((TcpStream::connect(server).unwrap())); 

Answer 1

from_str was renamed to parse and is now a method you can call on strings:

use std::net::SocketAddr;  fn main() {     let server_details = "127.0.0.1:80";     let server: SocketAddr = server_details         .parse()         .expect("Unable to parse socket address");     println!("{:?}", server); } 

If you'd like to be able to resolve DNS entries to IPv{4,6} addresses, you may want to use ToSocketAddrs:

use std::net::{TcpStream, ToSocketAddrs};  fn main() {     let server_details = "stackoverflow.com:80";     let server: Vec<_> = server_details         .to_socket_addrs()         .expect("Unable to resolve domain")         .collect();     println!("{:?}", server);      // Even easier, if you want to connect right away:     TcpStream::connect(server_details).expect("Unable to connect to server"); } 

to_socket_addrs returns an iterator as a single DNS entry can expand to multiple IP addresses! Note that this code won't work in the playground as network access is disabled there; you'll need to try it out locally.