1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
15 use net::{lookup_host, ntoh, hton, IpAddr, Ipv4Addr, Ipv6Addr};
17 use sys::net::netc as c;
18 use sys_common::{FromInner, AsInner, IntoInner};
23 /// Representation of a socket address for networking applications.
25 /// A socket address can either represent the IPv4 or IPv6 protocol and is
26 /// paired with at least a port number as well. Each protocol may have more
27 /// specific information about the address available to it as well.
28 #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
29 #[stable(feature = "rust1", since = "1.0.0")]
31 /// An IPv4 socket address which is a (ip, port) combination.
32 #[stable(feature = "rust1", since = "1.0.0")]
33 V4(#[stable(feature = "rust1", since = "1.0.0")] SocketAddrV4),
34 /// An IPv6 socket address.
35 #[stable(feature = "rust1", since = "1.0.0")]
36 V6(#[stable(feature = "rust1", since = "1.0.0")] SocketAddrV6),
39 /// An IPv4 socket address which is a (ip, port) combination.
41 #[stable(feature = "rust1", since = "1.0.0")]
42 pub struct SocketAddrV4 { inner: c::sockaddr_in }
44 /// An IPv6 socket address.
46 #[stable(feature = "rust1", since = "1.0.0")]
47 pub struct SocketAddrV6 { inner: c::sockaddr_in6 }
50 /// Creates a new socket address from the (ip, port) pair.
55 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
57 /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
58 /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)));
59 /// assert_eq!(socket.port(), 8080);
61 #[stable(feature = "ip_addr", since = "1.7.0")]
62 pub fn new(ip: IpAddr, port: u16) -> SocketAddr {
64 IpAddr::V4(a) => SocketAddr::V4(SocketAddrV4::new(a, port)),
65 IpAddr::V6(a) => SocketAddr::V6(SocketAddrV6::new(a, port, 0, 0)),
69 /// Returns the IP address associated with this socket address.
74 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
76 /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
77 /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)));
79 #[stable(feature = "ip_addr", since = "1.7.0")]
80 pub fn ip(&self) -> IpAddr {
82 SocketAddr::V4(ref a) => IpAddr::V4(*a.ip()),
83 SocketAddr::V6(ref a) => IpAddr::V6(*a.ip()),
87 /// Change the IP address associated with this socket address.
92 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
94 /// let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
95 /// socket.set_ip(IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1)));
96 /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1)));
98 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
99 pub fn set_ip(&mut self, new_ip: IpAddr) {
100 // `match (*self, new_ip)` would have us mutate a copy of self only to throw it away.
101 match (self, new_ip) {
102 (&mut SocketAddr::V4(ref mut a), IpAddr::V4(new_ip)) => a.set_ip(new_ip),
103 (&mut SocketAddr::V6(ref mut a), IpAddr::V6(new_ip)) => a.set_ip(new_ip),
104 (self_, new_ip) => *self_ = Self::new(new_ip, self_.port()),
108 /// Returns the port number associated with this socket address.
113 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
115 /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
116 /// assert_eq!(socket.port(), 8080);
118 #[stable(feature = "rust1", since = "1.0.0")]
119 pub fn port(&self) -> u16 {
121 SocketAddr::V4(ref a) => a.port(),
122 SocketAddr::V6(ref a) => a.port(),
126 /// Change the port number associated with this socket address.
131 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
133 /// let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
134 /// socket.set_port(1025);
135 /// assert_eq!(socket.port(), 1025);
137 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
138 pub fn set_port(&mut self, new_port: u16) {
140 SocketAddr::V4(ref mut a) => a.set_port(new_port),
141 SocketAddr::V6(ref mut a) => a.set_port(new_port),
145 /// Returns true if the IP in this `SocketAddr` is a valid IPv4 address,
146 /// false if it's a valid IPv6 address.
151 /// #![feature(sockaddr_checker)]
153 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
156 /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
157 /// assert_eq!(socket.is_ipv4(), true);
158 /// assert_eq!(socket.is_ipv6(), false);
161 #[unstable(feature = "sockaddr_checker", issue = "36949")]
162 pub fn is_ipv4(&self) -> bool {
164 SocketAddr::V4(_) => true,
165 SocketAddr::V6(_) => false,
169 /// Returns true if the IP in this `SocketAddr` is a valid IPv6 address,
170 /// false if it's a valid IPv4 address.
175 /// #![feature(sockaddr_checker)]
177 /// use std::net::{IpAddr, Ipv6Addr, SocketAddr};
180 /// let socket = SocketAddr::new(
181 /// IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 65535, 0, 1)), 8080);
182 /// assert_eq!(socket.is_ipv4(), false);
183 /// assert_eq!(socket.is_ipv6(), true);
186 #[unstable(feature = "sockaddr_checker", issue = "36949")]
187 pub fn is_ipv6(&self) -> bool {
189 SocketAddr::V4(_) => false,
190 SocketAddr::V6(_) => true,
196 /// Creates a new socket address from the (ip, port) pair.
201 /// use std::net::{SocketAddrV4, Ipv4Addr};
203 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
205 #[stable(feature = "rust1", since = "1.0.0")]
206 pub fn new(ip: Ipv4Addr, port: u16) -> SocketAddrV4 {
208 inner: c::sockaddr_in {
209 sin_family: c::AF_INET as c::sa_family_t,
210 sin_port: hton(port),
211 sin_addr: *ip.as_inner(),
212 .. unsafe { mem::zeroed() }
217 /// Returns the IP address associated with this socket address.
222 /// use std::net::{SocketAddrV4, Ipv4Addr};
224 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
225 /// assert_eq!(socket.ip(), &Ipv4Addr::new(127, 0, 0, 1));
227 #[stable(feature = "rust1", since = "1.0.0")]
228 pub fn ip(&self) -> &Ipv4Addr {
230 &*(&self.inner.sin_addr as *const c::in_addr as *const Ipv4Addr)
234 /// Change the IP address associated with this socket address.
239 /// use std::net::{SocketAddrV4, Ipv4Addr};
241 /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
242 /// socket.set_ip(Ipv4Addr::new(192, 168, 0, 1));
243 /// assert_eq!(socket.ip(), &Ipv4Addr::new(192, 168, 0, 1));
245 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
246 pub fn set_ip(&mut self, new_ip: Ipv4Addr) {
247 self.inner.sin_addr = *new_ip.as_inner()
250 /// Returns the port number associated with this socket address.
255 /// use std::net::{SocketAddrV4, Ipv4Addr};
257 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
258 /// assert_eq!(socket.port(), 8080);
260 #[stable(feature = "rust1", since = "1.0.0")]
261 pub fn port(&self) -> u16 {
262 ntoh(self.inner.sin_port)
265 /// Change the port number associated with this socket address.
270 /// use std::net::{SocketAddrV4, Ipv4Addr};
272 /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
273 /// socket.set_port(4242);
274 /// assert_eq!(socket.port(), 4242);
276 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
277 pub fn set_port(&mut self, new_port: u16) {
278 self.inner.sin_port = hton(new_port);
283 /// Creates a new socket address from the ip/port/flowinfo/scope_id
289 /// use std::net::{SocketAddrV6, Ipv6Addr};
291 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
293 #[stable(feature = "rust1", since = "1.0.0")]
294 pub fn new(ip: Ipv6Addr, port: u16, flowinfo: u32, scope_id: u32)
297 inner: c::sockaddr_in6 {
298 sin6_family: c::AF_INET6 as c::sa_family_t,
299 sin6_port: hton(port),
300 sin6_addr: *ip.as_inner(),
301 sin6_flowinfo: flowinfo,
302 sin6_scope_id: scope_id,
303 .. unsafe { mem::zeroed() }
308 /// Returns the IP address associated with this socket address.
313 /// use std::net::{SocketAddrV6, Ipv6Addr};
315 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
316 /// assert_eq!(socket.ip(), &Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));
318 #[stable(feature = "rust1", since = "1.0.0")]
319 pub fn ip(&self) -> &Ipv6Addr {
321 &*(&self.inner.sin6_addr as *const c::in6_addr as *const Ipv6Addr)
325 /// Change the IP address associated with this socket address.
330 /// use std::net::{SocketAddrV6, Ipv6Addr};
332 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
333 /// socket.set_ip(Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0));
334 /// assert_eq!(socket.ip(), &Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0));
336 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
337 pub fn set_ip(&mut self, new_ip: Ipv6Addr) {
338 self.inner.sin6_addr = *new_ip.as_inner()
341 /// Returns the port number associated with this socket address.
346 /// use std::net::{SocketAddrV6, Ipv6Addr};
348 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
349 /// assert_eq!(socket.port(), 8080);
351 #[stable(feature = "rust1", since = "1.0.0")]
352 pub fn port(&self) -> u16 {
353 ntoh(self.inner.sin6_port)
356 /// Change the port number associated with this socket address.
361 /// use std::net::{SocketAddrV6, Ipv6Addr};
363 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
364 /// socket.set_port(4242);
365 /// assert_eq!(socket.port(), 4242);
367 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
368 pub fn set_port(&mut self, new_port: u16) {
369 self.inner.sin6_port = hton(new_port);
372 /// Returns the flow information associated with this address,
373 /// corresponding to the `sin6_flowinfo` field in C.
378 /// use std::net::{SocketAddrV6, Ipv6Addr};
380 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0);
381 /// assert_eq!(socket.flowinfo(), 10);
383 #[stable(feature = "rust1", since = "1.0.0")]
384 pub fn flowinfo(&self) -> u32 {
385 self.inner.sin6_flowinfo
388 /// Change the flow information associated with this socket address.
393 /// use std::net::{SocketAddrV6, Ipv6Addr};
395 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0);
396 /// socket.set_flowinfo(56);
397 /// assert_eq!(socket.flowinfo(), 56);
399 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
400 pub fn set_flowinfo(&mut self, new_flowinfo: u32) {
401 self.inner.sin6_flowinfo = new_flowinfo;
404 /// Returns the scope ID associated with this address,
405 /// corresponding to the `sin6_scope_id` field in C.
410 /// use std::net::{SocketAddrV6, Ipv6Addr};
412 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78);
413 /// assert_eq!(socket.scope_id(), 78);
415 #[stable(feature = "rust1", since = "1.0.0")]
416 pub fn scope_id(&self) -> u32 {
417 self.inner.sin6_scope_id
420 /// Change the scope ID associated with this socket address.
425 /// use std::net::{SocketAddrV6, Ipv6Addr};
427 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78);
428 /// socket.set_scope_id(42);
429 /// assert_eq!(socket.scope_id(), 42);
431 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
432 pub fn set_scope_id(&mut self, new_scope_id: u32) {
433 self.inner.sin6_scope_id = new_scope_id;
437 impl FromInner<c::sockaddr_in> for SocketAddrV4 {
438 fn from_inner(addr: c::sockaddr_in) -> SocketAddrV4 {
439 SocketAddrV4 { inner: addr }
443 impl FromInner<c::sockaddr_in6> for SocketAddrV6 {
444 fn from_inner(addr: c::sockaddr_in6) -> SocketAddrV6 {
445 SocketAddrV6 { inner: addr }
449 impl<'a> IntoInner<(*const c::sockaddr, c::socklen_t)> for &'a SocketAddr {
450 fn into_inner(self) -> (*const c::sockaddr, c::socklen_t) {
452 SocketAddr::V4(ref a) => {
453 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
455 SocketAddr::V6(ref a) => {
456 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
462 #[stable(feature = "rust1", since = "1.0.0")]
463 impl fmt::Display for SocketAddr {
464 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
466 SocketAddr::V4(ref a) => a.fmt(f),
467 SocketAddr::V6(ref a) => a.fmt(f),
472 #[stable(feature = "rust1", since = "1.0.0")]
473 impl fmt::Display for SocketAddrV4 {
474 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
475 write!(f, "{}:{}", self.ip(), self.port())
479 #[stable(feature = "rust1", since = "1.0.0")]
480 impl fmt::Debug for SocketAddrV4 {
481 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
482 fmt::Display::fmt(self, fmt)
486 #[stable(feature = "rust1", since = "1.0.0")]
487 impl fmt::Display for SocketAddrV6 {
488 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
489 write!(f, "[{}]:{}", self.ip(), self.port())
493 #[stable(feature = "rust1", since = "1.0.0")]
494 impl fmt::Debug for SocketAddrV6 {
495 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
496 fmt::Display::fmt(self, fmt)
500 #[stable(feature = "rust1", since = "1.0.0")]
501 impl Clone for SocketAddrV4 {
502 fn clone(&self) -> SocketAddrV4 { *self }
504 #[stable(feature = "rust1", since = "1.0.0")]
505 impl Clone for SocketAddrV6 {
506 fn clone(&self) -> SocketAddrV6 { *self }
509 #[stable(feature = "rust1", since = "1.0.0")]
510 impl PartialEq for SocketAddrV4 {
511 fn eq(&self, other: &SocketAddrV4) -> bool {
512 self.inner.sin_port == other.inner.sin_port &&
513 self.inner.sin_addr.s_addr == other.inner.sin_addr.s_addr
516 #[stable(feature = "rust1", since = "1.0.0")]
517 impl PartialEq for SocketAddrV6 {
518 fn eq(&self, other: &SocketAddrV6) -> bool {
519 self.inner.sin6_port == other.inner.sin6_port &&
520 self.inner.sin6_addr.s6_addr == other.inner.sin6_addr.s6_addr &&
521 self.inner.sin6_flowinfo == other.inner.sin6_flowinfo &&
522 self.inner.sin6_scope_id == other.inner.sin6_scope_id
525 #[stable(feature = "rust1", since = "1.0.0")]
526 impl Eq for SocketAddrV4 {}
527 #[stable(feature = "rust1", since = "1.0.0")]
528 impl Eq for SocketAddrV6 {}
530 #[stable(feature = "rust1", since = "1.0.0")]
531 impl hash::Hash for SocketAddrV4 {
532 fn hash<H: hash::Hasher>(&self, s: &mut H) {
533 (self.inner.sin_port, self.inner.sin_addr.s_addr).hash(s)
536 #[stable(feature = "rust1", since = "1.0.0")]
537 impl hash::Hash for SocketAddrV6 {
538 fn hash<H: hash::Hasher>(&self, s: &mut H) {
539 (self.inner.sin6_port, &self.inner.sin6_addr.s6_addr,
540 self.inner.sin6_flowinfo, self.inner.sin6_scope_id).hash(s)
544 /// A trait for objects which can be converted or resolved to one or more
545 /// `SocketAddr` values.
547 /// This trait is used for generic address resolution when constructing network
548 /// objects. By default it is implemented for the following types:
550 /// * `SocketAddr`, `SocketAddrV4`, `SocketAddrV6` - `to_socket_addrs` is
551 /// identity function.
553 /// * `(IpvNAddr, u16)` - `to_socket_addrs` constructs `SocketAddr` trivially.
555 /// * `(&str, u16)` - the string should be either a string representation of an
556 /// IP address expected by `FromStr` implementation for `IpvNAddr` or a host
559 /// * `&str` - the string should be either a string representation of a
560 /// `SocketAddr` as expected by its `FromStr` implementation or a string like
561 /// `<host_name>:<port>` pair where `<port>` is a `u16` value.
563 /// This trait allows constructing network objects like `TcpStream` or
564 /// `UdpSocket` easily with values of various types for the bind/connection
565 /// address. It is needed because sometimes one type is more appropriate than
566 /// the other: for simple uses a string like `"localhost:12345"` is much nicer
567 /// than manual construction of the corresponding `SocketAddr`, but sometimes
568 /// `SocketAddr` value is *the* main source of the address, and converting it to
569 /// some other type (e.g. a string) just for it to be converted back to
570 /// `SocketAddr` in constructor methods is pointless.
572 /// Addresses returned by the operating system that are not IP addresses are
573 /// silently ignored.
578 /// use std::net::{SocketAddrV4, TcpStream, UdpSocket, TcpListener, Ipv4Addr};
581 /// let ip = Ipv4Addr::new(127, 0, 0, 1);
582 /// let port = 12345;
584 /// // The following lines are equivalent modulo possible "localhost" name
585 /// // resolution differences
586 /// let tcp_s = TcpStream::connect(SocketAddrV4::new(ip, port));
587 /// let tcp_s = TcpStream::connect((ip, port));
588 /// let tcp_s = TcpStream::connect(("127.0.0.1", port));
589 /// let tcp_s = TcpStream::connect(("localhost", port));
590 /// let tcp_s = TcpStream::connect("127.0.0.1:12345");
591 /// let tcp_s = TcpStream::connect("localhost:12345");
593 /// // TcpListener::bind(), UdpSocket::bind() and UdpSocket::send_to()
594 /// // behave similarly
595 /// let tcp_l = TcpListener::bind("localhost:12345");
597 /// let mut udp_s = UdpSocket::bind(("127.0.0.1", port)).unwrap();
598 /// udp_s.send_to(&[7], (ip, 23451)).unwrap();
601 #[stable(feature = "rust1", since = "1.0.0")]
602 pub trait ToSocketAddrs {
603 /// Returned iterator over socket addresses which this type may correspond
605 #[stable(feature = "rust1", since = "1.0.0")]
606 type Iter: Iterator<Item=SocketAddr>;
608 /// Converts this object to an iterator of resolved `SocketAddr`s.
610 /// The returned iterator may not actually yield any values depending on the
611 /// outcome of any resolution performed.
613 /// Note that this function may block the current thread while resolution is
618 /// Any errors encountered during resolution will be returned as an `Err`.
619 #[stable(feature = "rust1", since = "1.0.0")]
620 fn to_socket_addrs(&self) -> io::Result<Self::Iter>;
623 #[stable(feature = "rust1", since = "1.0.0")]
624 impl ToSocketAddrs for SocketAddr {
625 type Iter = option::IntoIter<SocketAddr>;
626 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
627 Ok(Some(*self).into_iter())
631 #[stable(feature = "rust1", since = "1.0.0")]
632 impl ToSocketAddrs for SocketAddrV4 {
633 type Iter = option::IntoIter<SocketAddr>;
634 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
635 SocketAddr::V4(*self).to_socket_addrs()
639 #[stable(feature = "rust1", since = "1.0.0")]
640 impl ToSocketAddrs for SocketAddrV6 {
641 type Iter = option::IntoIter<SocketAddr>;
642 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
643 SocketAddr::V6(*self).to_socket_addrs()
647 #[stable(feature = "rust1", since = "1.0.0")]
648 impl ToSocketAddrs for (IpAddr, u16) {
649 type Iter = option::IntoIter<SocketAddr>;
650 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
651 let (ip, port) = *self;
653 IpAddr::V4(ref a) => (*a, port).to_socket_addrs(),
654 IpAddr::V6(ref a) => (*a, port).to_socket_addrs(),
659 #[stable(feature = "rust1", since = "1.0.0")]
660 impl ToSocketAddrs for (Ipv4Addr, u16) {
661 type Iter = option::IntoIter<SocketAddr>;
662 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
663 let (ip, port) = *self;
664 SocketAddrV4::new(ip, port).to_socket_addrs()
668 #[stable(feature = "rust1", since = "1.0.0")]
669 impl ToSocketAddrs for (Ipv6Addr, u16) {
670 type Iter = option::IntoIter<SocketAddr>;
671 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
672 let (ip, port) = *self;
673 SocketAddrV6::new(ip, port, 0, 0).to_socket_addrs()
677 fn resolve_socket_addr(s: &str, p: u16) -> io::Result<vec::IntoIter<SocketAddr>> {
678 let ips = lookup_host(s)?;
679 let v: Vec<_> = ips.map(|mut a| { a.set_port(p); a }).collect();
683 #[stable(feature = "rust1", since = "1.0.0")]
684 impl<'a> ToSocketAddrs for (&'a str, u16) {
685 type Iter = vec::IntoIter<SocketAddr>;
686 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
687 let (host, port) = *self;
689 // try to parse the host as a regular IP address first
690 if let Ok(addr) = host.parse::<Ipv4Addr>() {
691 let addr = SocketAddrV4::new(addr, port);
692 return Ok(vec![SocketAddr::V4(addr)].into_iter())
694 if let Ok(addr) = host.parse::<Ipv6Addr>() {
695 let addr = SocketAddrV6::new(addr, port, 0, 0);
696 return Ok(vec![SocketAddr::V6(addr)].into_iter())
699 resolve_socket_addr(host, port)
703 // accepts strings like 'localhost:12345'
704 #[stable(feature = "rust1", since = "1.0.0")]
705 impl ToSocketAddrs for str {
706 type Iter = vec::IntoIter<SocketAddr>;
707 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
708 // try to parse as a regular SocketAddr first
709 if let Some(addr) = self.parse().ok() {
710 return Ok(vec![addr].into_iter());
713 macro_rules! try_opt {
714 ($e:expr, $msg:expr) => (
717 None => return Err(io::Error::new(io::ErrorKind::InvalidInput,
723 // split the string by ':' and convert the second part to u16
724 let mut parts_iter = self.rsplitn(2, ':');
725 let port_str = try_opt!(parts_iter.next(), "invalid socket address");
726 let host = try_opt!(parts_iter.next(), "invalid socket address");
727 let port: u16 = try_opt!(port_str.parse().ok(), "invalid port value");
728 resolve_socket_addr(host, port)
732 #[stable(feature = "slice_to_socket_addrs", since = "1.8.0")]
733 impl<'a> ToSocketAddrs for &'a [SocketAddr] {
734 type Iter = iter::Cloned<slice::Iter<'a, SocketAddr>>;
736 fn to_socket_addrs(&self) -> io::Result<Self::Iter> {
737 Ok(self.iter().cloned())
741 #[stable(feature = "rust1", since = "1.0.0")]
742 impl<'a, T: ToSocketAddrs + ?Sized> ToSocketAddrs for &'a T {
744 fn to_socket_addrs(&self) -> io::Result<T::Iter> {
745 (**self).to_socket_addrs()
749 #[cfg(all(test, not(target_os = "emscripten")))]
752 use net::test::{tsa, sa6, sa4};
755 fn to_socket_addr_ipaddr_u16() {
756 let a = Ipv4Addr::new(77, 88, 21, 11);
758 let e = SocketAddr::V4(SocketAddrV4::new(a, p));
759 assert_eq!(Ok(vec![e]), tsa((a, p)));
763 fn to_socket_addr_str_u16() {
764 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
765 assert_eq!(Ok(vec![a]), tsa(("77.88.21.11", 24352)));
767 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
768 assert_eq!(Ok(vec![a]), tsa(("2a02:6b8:0:1::1", 53)));
770 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
771 assert!(tsa(("localhost", 23924)).unwrap().contains(&a));
775 fn to_socket_addr_str() {
776 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
777 assert_eq!(Ok(vec![a]), tsa("77.88.21.11:24352"));
779 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
780 assert_eq!(Ok(vec![a]), tsa("[2a02:6b8:0:1::1]:53"));
782 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
783 assert!(tsa("localhost:23924").unwrap().contains(&a));
786 // FIXME: figure out why this fails on openbsd and bitrig and fix it
788 #[cfg(not(any(windows, target_os = "openbsd", target_os = "bitrig")))]
789 fn to_socket_addr_str_bad() {
790 assert!(tsa("1200::AB00:1234::2552:7777:1313:34300").is_err());
795 fn ip4(low: u8) -> Ipv4Addr { Ipv4Addr::new(77, 88, 21, low) }
796 fn ip6(low: u16) -> Ipv6Addr { Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, low) }
798 let mut v4 = SocketAddrV4::new(ip4(11), 80);
799 assert_eq!(v4.ip(), &ip4(11));
801 assert_eq!(v4.ip(), &ip4(12));
803 let mut addr = SocketAddr::V4(v4);
804 assert_eq!(addr.ip(), IpAddr::V4(ip4(12)));
805 addr.set_ip(IpAddr::V4(ip4(13)));
806 assert_eq!(addr.ip(), IpAddr::V4(ip4(13)));
807 addr.set_ip(IpAddr::V6(ip6(14)));
808 assert_eq!(addr.ip(), IpAddr::V6(ip6(14)));
810 let mut v6 = SocketAddrV6::new(ip6(1), 80, 0, 0);
811 assert_eq!(v6.ip(), &ip6(1));
813 assert_eq!(v6.ip(), &ip6(2));
815 let mut addr = SocketAddr::V6(v6);
816 assert_eq!(addr.ip(), IpAddr::V6(ip6(2)));
817 addr.set_ip(IpAddr::V6(ip6(3)));
818 assert_eq!(addr.ip(), IpAddr::V6(ip6(3)));
819 addr.set_ip(IpAddr::V4(ip4(4)));
820 assert_eq!(addr.ip(), IpAddr::V4(ip4(4)));
825 let mut v4 = SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80);
826 assert_eq!(v4.port(), 80);
828 assert_eq!(v4.port(), 443);
830 let mut addr = SocketAddr::V4(v4);
831 assert_eq!(addr.port(), 443);
833 assert_eq!(addr.port(), 8080);
835 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 0);
836 assert_eq!(v6.port(), 80);
838 assert_eq!(v6.port(), 443);
840 let mut addr = SocketAddr::V6(v6);
841 assert_eq!(addr.port(), 443);
843 assert_eq!(addr.port(), 8080);
848 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 10, 0);
849 assert_eq!(v6.flowinfo(), 10);
851 assert_eq!(v6.flowinfo(), 20);
856 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 10);
857 assert_eq!(v6.scope_id(), 10);
859 assert_eq!(v6.scope_id(), 20);
864 let v4 = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80));
865 assert!(v4.is_ipv4());
866 assert!(!v4.is_ipv6());
871 let v6 = SocketAddr::V6(SocketAddrV6::new(
872 Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 10, 0));
873 assert!(!v6.is_ipv4());
874 assert!(v6.is_ipv6());