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 /// use std::net::{IpAddr, Ipv4Addr, SocketAddr};
154 /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
155 /// assert_eq!(socket.is_ipv4(), true);
156 /// assert_eq!(socket.is_ipv6(), false);
159 #[stable(feature = "sockaddr_checker", since = "1.16.0")]
160 pub fn is_ipv4(&self) -> bool {
162 SocketAddr::V4(_) => true,
163 SocketAddr::V6(_) => false,
167 /// Returns true if the IP in this `SocketAddr` is a valid IPv6 address,
168 /// false if it's a valid IPv4 address.
173 /// use std::net::{IpAddr, Ipv6Addr, SocketAddr};
176 /// let socket = SocketAddr::new(
177 /// IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 65535, 0, 1)), 8080);
178 /// assert_eq!(socket.is_ipv4(), false);
179 /// assert_eq!(socket.is_ipv6(), true);
182 #[stable(feature = "sockaddr_checker", since = "1.16.0")]
183 pub fn is_ipv6(&self) -> bool {
185 SocketAddr::V4(_) => false,
186 SocketAddr::V6(_) => true,
192 /// Creates a new socket address from the (ip, port) pair.
197 /// use std::net::{SocketAddrV4, Ipv4Addr};
199 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
201 #[stable(feature = "rust1", since = "1.0.0")]
202 pub fn new(ip: Ipv4Addr, port: u16) -> SocketAddrV4 {
204 inner: c::sockaddr_in {
205 sin_family: c::AF_INET as c::sa_family_t,
206 sin_port: hton(port),
207 sin_addr: *ip.as_inner(),
208 .. unsafe { mem::zeroed() }
213 /// Returns the IP address associated with this socket address.
218 /// use std::net::{SocketAddrV4, Ipv4Addr};
220 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
221 /// assert_eq!(socket.ip(), &Ipv4Addr::new(127, 0, 0, 1));
223 #[stable(feature = "rust1", since = "1.0.0")]
224 pub fn ip(&self) -> &Ipv4Addr {
226 &*(&self.inner.sin_addr as *const c::in_addr as *const Ipv4Addr)
230 /// Change the IP address associated with this socket address.
235 /// use std::net::{SocketAddrV4, Ipv4Addr};
237 /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
238 /// socket.set_ip(Ipv4Addr::new(192, 168, 0, 1));
239 /// assert_eq!(socket.ip(), &Ipv4Addr::new(192, 168, 0, 1));
241 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
242 pub fn set_ip(&mut self, new_ip: Ipv4Addr) {
243 self.inner.sin_addr = *new_ip.as_inner()
246 /// Returns the port number associated with this socket address.
251 /// use std::net::{SocketAddrV4, Ipv4Addr};
253 /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
254 /// assert_eq!(socket.port(), 8080);
256 #[stable(feature = "rust1", since = "1.0.0")]
257 pub fn port(&self) -> u16 {
258 ntoh(self.inner.sin_port)
261 /// Change the port number associated with this socket address.
266 /// use std::net::{SocketAddrV4, Ipv4Addr};
268 /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080);
269 /// socket.set_port(4242);
270 /// assert_eq!(socket.port(), 4242);
272 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
273 pub fn set_port(&mut self, new_port: u16) {
274 self.inner.sin_port = hton(new_port);
279 /// Creates a new socket address from the ip/port/flowinfo/scope_id
285 /// use std::net::{SocketAddrV6, Ipv6Addr};
287 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
289 #[stable(feature = "rust1", since = "1.0.0")]
290 pub fn new(ip: Ipv6Addr, port: u16, flowinfo: u32, scope_id: u32)
293 inner: c::sockaddr_in6 {
294 sin6_family: c::AF_INET6 as c::sa_family_t,
295 sin6_port: hton(port),
296 sin6_addr: *ip.as_inner(),
297 sin6_flowinfo: flowinfo,
298 sin6_scope_id: scope_id,
299 .. unsafe { mem::zeroed() }
304 /// Returns the IP address associated with this socket address.
309 /// use std::net::{SocketAddrV6, Ipv6Addr};
311 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
312 /// assert_eq!(socket.ip(), &Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));
314 #[stable(feature = "rust1", since = "1.0.0")]
315 pub fn ip(&self) -> &Ipv6Addr {
317 &*(&self.inner.sin6_addr as *const c::in6_addr as *const Ipv6Addr)
321 /// Change the IP address associated with this socket address.
326 /// use std::net::{SocketAddrV6, Ipv6Addr};
328 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
329 /// socket.set_ip(Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0));
330 /// assert_eq!(socket.ip(), &Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0));
332 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
333 pub fn set_ip(&mut self, new_ip: Ipv6Addr) {
334 self.inner.sin6_addr = *new_ip.as_inner()
337 /// Returns the port number associated with this socket address.
342 /// use std::net::{SocketAddrV6, Ipv6Addr};
344 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
345 /// assert_eq!(socket.port(), 8080);
347 #[stable(feature = "rust1", since = "1.0.0")]
348 pub fn port(&self) -> u16 {
349 ntoh(self.inner.sin6_port)
352 /// Change the port number associated with this socket address.
357 /// use std::net::{SocketAddrV6, Ipv6Addr};
359 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0);
360 /// socket.set_port(4242);
361 /// assert_eq!(socket.port(), 4242);
363 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
364 pub fn set_port(&mut self, new_port: u16) {
365 self.inner.sin6_port = hton(new_port);
368 /// Returns the flow information associated with this address,
369 /// corresponding to the `sin6_flowinfo` field in C.
374 /// use std::net::{SocketAddrV6, Ipv6Addr};
376 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0);
377 /// assert_eq!(socket.flowinfo(), 10);
379 #[stable(feature = "rust1", since = "1.0.0")]
380 pub fn flowinfo(&self) -> u32 {
381 self.inner.sin6_flowinfo
384 /// Change the flow information associated with this socket address.
389 /// use std::net::{SocketAddrV6, Ipv6Addr};
391 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0);
392 /// socket.set_flowinfo(56);
393 /// assert_eq!(socket.flowinfo(), 56);
395 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
396 pub fn set_flowinfo(&mut self, new_flowinfo: u32) {
397 self.inner.sin6_flowinfo = new_flowinfo;
400 /// Returns the scope ID associated with this address,
401 /// corresponding to the `sin6_scope_id` field in C.
406 /// use std::net::{SocketAddrV6, Ipv6Addr};
408 /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78);
409 /// assert_eq!(socket.scope_id(), 78);
411 #[stable(feature = "rust1", since = "1.0.0")]
412 pub fn scope_id(&self) -> u32 {
413 self.inner.sin6_scope_id
416 /// Change the scope ID associated with this socket address.
421 /// use std::net::{SocketAddrV6, Ipv6Addr};
423 /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78);
424 /// socket.set_scope_id(42);
425 /// assert_eq!(socket.scope_id(), 42);
427 #[stable(feature = "sockaddr_setters", since = "1.9.0")]
428 pub fn set_scope_id(&mut self, new_scope_id: u32) {
429 self.inner.sin6_scope_id = new_scope_id;
433 impl FromInner<c::sockaddr_in> for SocketAddrV4 {
434 fn from_inner(addr: c::sockaddr_in) -> SocketAddrV4 {
435 SocketAddrV4 { inner: addr }
439 impl FromInner<c::sockaddr_in6> for SocketAddrV6 {
440 fn from_inner(addr: c::sockaddr_in6) -> SocketAddrV6 {
441 SocketAddrV6 { inner: addr }
445 #[stable(feature = "ip_from_ip", since = "1.16.0")]
446 impl From<SocketAddrV4> for SocketAddr {
447 fn from(sock4: SocketAddrV4) -> SocketAddr {
448 SocketAddr::V4(sock4)
452 #[stable(feature = "ip_from_ip", since = "1.16.0")]
453 impl From<SocketAddrV6> for SocketAddr {
454 fn from(sock6: SocketAddrV6) -> SocketAddr {
455 SocketAddr::V6(sock6)
459 impl<'a> IntoInner<(*const c::sockaddr, c::socklen_t)> for &'a SocketAddr {
460 fn into_inner(self) -> (*const c::sockaddr, c::socklen_t) {
462 SocketAddr::V4(ref a) => {
463 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
465 SocketAddr::V6(ref a) => {
466 (a as *const _ as *const _, mem::size_of_val(a) as c::socklen_t)
472 #[stable(feature = "rust1", since = "1.0.0")]
473 impl fmt::Display for SocketAddr {
474 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
476 SocketAddr::V4(ref a) => a.fmt(f),
477 SocketAddr::V6(ref a) => a.fmt(f),
482 #[stable(feature = "rust1", since = "1.0.0")]
483 impl fmt::Display for SocketAddrV4 {
484 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
485 write!(f, "{}:{}", self.ip(), self.port())
489 #[stable(feature = "rust1", since = "1.0.0")]
490 impl fmt::Debug for SocketAddrV4 {
491 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
492 fmt::Display::fmt(self, fmt)
496 #[stable(feature = "rust1", since = "1.0.0")]
497 impl fmt::Display for SocketAddrV6 {
498 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
499 write!(f, "[{}]:{}", self.ip(), self.port())
503 #[stable(feature = "rust1", since = "1.0.0")]
504 impl fmt::Debug for SocketAddrV6 {
505 fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
506 fmt::Display::fmt(self, fmt)
510 #[stable(feature = "rust1", since = "1.0.0")]
511 impl Clone for SocketAddrV4 {
512 fn clone(&self) -> SocketAddrV4 { *self }
514 #[stable(feature = "rust1", since = "1.0.0")]
515 impl Clone for SocketAddrV6 {
516 fn clone(&self) -> SocketAddrV6 { *self }
519 #[stable(feature = "rust1", since = "1.0.0")]
520 impl PartialEq for SocketAddrV4 {
521 fn eq(&self, other: &SocketAddrV4) -> bool {
522 self.inner.sin_port == other.inner.sin_port &&
523 self.inner.sin_addr.s_addr == other.inner.sin_addr.s_addr
526 #[stable(feature = "rust1", since = "1.0.0")]
527 impl PartialEq for SocketAddrV6 {
528 fn eq(&self, other: &SocketAddrV6) -> bool {
529 self.inner.sin6_port == other.inner.sin6_port &&
530 self.inner.sin6_addr.s6_addr == other.inner.sin6_addr.s6_addr &&
531 self.inner.sin6_flowinfo == other.inner.sin6_flowinfo &&
532 self.inner.sin6_scope_id == other.inner.sin6_scope_id
535 #[stable(feature = "rust1", since = "1.0.0")]
536 impl Eq for SocketAddrV4 {}
537 #[stable(feature = "rust1", since = "1.0.0")]
538 impl Eq for SocketAddrV6 {}
540 #[stable(feature = "rust1", since = "1.0.0")]
541 impl hash::Hash for SocketAddrV4 {
542 fn hash<H: hash::Hasher>(&self, s: &mut H) {
543 (self.inner.sin_port, self.inner.sin_addr.s_addr).hash(s)
546 #[stable(feature = "rust1", since = "1.0.0")]
547 impl hash::Hash for SocketAddrV6 {
548 fn hash<H: hash::Hasher>(&self, s: &mut H) {
549 (self.inner.sin6_port, &self.inner.sin6_addr.s6_addr,
550 self.inner.sin6_flowinfo, self.inner.sin6_scope_id).hash(s)
554 /// A trait for objects which can be converted or resolved to one or more
555 /// `SocketAddr` values.
557 /// This trait is used for generic address resolution when constructing network
558 /// objects. By default it is implemented for the following types:
560 /// * `SocketAddr`, `SocketAddrV4`, `SocketAddrV6` - `to_socket_addrs` is
561 /// identity function.
563 /// * `(IpvNAddr, u16)` - `to_socket_addrs` constructs `SocketAddr` trivially.
565 /// * `(&str, u16)` - the string should be either a string representation of an
566 /// IP address expected by `FromStr` implementation for `IpvNAddr` or a host
569 /// * `&str` - the string should be either a string representation of a
570 /// `SocketAddr` as expected by its `FromStr` implementation or a string like
571 /// `<host_name>:<port>` pair where `<port>` is a `u16` value.
573 /// This trait allows constructing network objects like `TcpStream` or
574 /// `UdpSocket` easily with values of various types for the bind/connection
575 /// address. It is needed because sometimes one type is more appropriate than
576 /// the other: for simple uses a string like `"localhost:12345"` is much nicer
577 /// than manual construction of the corresponding `SocketAddr`, but sometimes
578 /// `SocketAddr` value is *the* main source of the address, and converting it to
579 /// some other type (e.g. a string) just for it to be converted back to
580 /// `SocketAddr` in constructor methods is pointless.
582 /// Addresses returned by the operating system that are not IP addresses are
583 /// silently ignored.
588 /// use std::net::{SocketAddrV4, TcpStream, UdpSocket, TcpListener, Ipv4Addr};
591 /// let ip = Ipv4Addr::new(127, 0, 0, 1);
592 /// let port = 12345;
594 /// // The following lines are equivalent modulo possible "localhost" name
595 /// // resolution differences
596 /// let tcp_s = TcpStream::connect(SocketAddrV4::new(ip, port));
597 /// let tcp_s = TcpStream::connect((ip, port));
598 /// let tcp_s = TcpStream::connect(("127.0.0.1", port));
599 /// let tcp_s = TcpStream::connect(("localhost", port));
600 /// let tcp_s = TcpStream::connect("127.0.0.1:12345");
601 /// let tcp_s = TcpStream::connect("localhost:12345");
603 /// // TcpListener::bind(), UdpSocket::bind() and UdpSocket::send_to()
604 /// // behave similarly
605 /// let tcp_l = TcpListener::bind("localhost:12345");
607 /// let mut udp_s = UdpSocket::bind(("127.0.0.1", port)).unwrap();
608 /// udp_s.send_to(&[7], (ip, 23451)).unwrap();
611 #[stable(feature = "rust1", since = "1.0.0")]
612 pub trait ToSocketAddrs {
613 /// Returned iterator over socket addresses which this type may correspond
615 #[stable(feature = "rust1", since = "1.0.0")]
616 type Iter: Iterator<Item=SocketAddr>;
618 /// Converts this object to an iterator of resolved `SocketAddr`s.
620 /// The returned iterator may not actually yield any values depending on the
621 /// outcome of any resolution performed.
623 /// Note that this function may block the current thread while resolution is
628 /// Any errors encountered during resolution will be returned as an `Err`.
629 #[stable(feature = "rust1", since = "1.0.0")]
630 fn to_socket_addrs(&self) -> io::Result<Self::Iter>;
633 #[stable(feature = "rust1", since = "1.0.0")]
634 impl ToSocketAddrs for SocketAddr {
635 type Iter = option::IntoIter<SocketAddr>;
636 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
637 Ok(Some(*self).into_iter())
641 #[stable(feature = "rust1", since = "1.0.0")]
642 impl ToSocketAddrs for SocketAddrV4 {
643 type Iter = option::IntoIter<SocketAddr>;
644 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
645 SocketAddr::V4(*self).to_socket_addrs()
649 #[stable(feature = "rust1", since = "1.0.0")]
650 impl ToSocketAddrs for SocketAddrV6 {
651 type Iter = option::IntoIter<SocketAddr>;
652 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
653 SocketAddr::V6(*self).to_socket_addrs()
657 #[stable(feature = "rust1", since = "1.0.0")]
658 impl ToSocketAddrs for (IpAddr, u16) {
659 type Iter = option::IntoIter<SocketAddr>;
660 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
661 let (ip, port) = *self;
663 IpAddr::V4(ref a) => (*a, port).to_socket_addrs(),
664 IpAddr::V6(ref a) => (*a, port).to_socket_addrs(),
669 #[stable(feature = "rust1", since = "1.0.0")]
670 impl ToSocketAddrs for (Ipv4Addr, u16) {
671 type Iter = option::IntoIter<SocketAddr>;
672 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
673 let (ip, port) = *self;
674 SocketAddrV4::new(ip, port).to_socket_addrs()
678 #[stable(feature = "rust1", since = "1.0.0")]
679 impl ToSocketAddrs for (Ipv6Addr, u16) {
680 type Iter = option::IntoIter<SocketAddr>;
681 fn to_socket_addrs(&self) -> io::Result<option::IntoIter<SocketAddr>> {
682 let (ip, port) = *self;
683 SocketAddrV6::new(ip, port, 0, 0).to_socket_addrs()
687 fn resolve_socket_addr(s: &str, p: u16) -> io::Result<vec::IntoIter<SocketAddr>> {
688 let ips = lookup_host(s)?;
689 let v: Vec<_> = ips.map(|mut a| { a.set_port(p); a }).collect();
693 #[stable(feature = "rust1", since = "1.0.0")]
694 impl<'a> ToSocketAddrs for (&'a str, u16) {
695 type Iter = vec::IntoIter<SocketAddr>;
696 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
697 let (host, port) = *self;
699 // try to parse the host as a regular IP address first
700 if let Ok(addr) = host.parse::<Ipv4Addr>() {
701 let addr = SocketAddrV4::new(addr, port);
702 return Ok(vec![SocketAddr::V4(addr)].into_iter())
704 if let Ok(addr) = host.parse::<Ipv6Addr>() {
705 let addr = SocketAddrV6::new(addr, port, 0, 0);
706 return Ok(vec![SocketAddr::V6(addr)].into_iter())
709 resolve_socket_addr(host, port)
713 // accepts strings like 'localhost:12345'
714 #[stable(feature = "rust1", since = "1.0.0")]
715 impl ToSocketAddrs for str {
716 type Iter = vec::IntoIter<SocketAddr>;
717 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
718 // try to parse as a regular SocketAddr first
719 if let Some(addr) = self.parse().ok() {
720 return Ok(vec![addr].into_iter());
723 macro_rules! try_opt {
724 ($e:expr, $msg:expr) => (
727 None => return Err(io::Error::new(io::ErrorKind::InvalidInput,
733 // split the string by ':' and convert the second part to u16
734 let mut parts_iter = self.rsplitn(2, ':');
735 let port_str = try_opt!(parts_iter.next(), "invalid socket address");
736 let host = try_opt!(parts_iter.next(), "invalid socket address");
737 let port: u16 = try_opt!(port_str.parse().ok(), "invalid port value");
738 resolve_socket_addr(host, port)
742 #[stable(feature = "slice_to_socket_addrs", since = "1.8.0")]
743 impl<'a> ToSocketAddrs for &'a [SocketAddr] {
744 type Iter = iter::Cloned<slice::Iter<'a, SocketAddr>>;
746 fn to_socket_addrs(&self) -> io::Result<Self::Iter> {
747 Ok(self.iter().cloned())
751 #[stable(feature = "rust1", since = "1.0.0")]
752 impl<'a, T: ToSocketAddrs + ?Sized> ToSocketAddrs for &'a T {
754 fn to_socket_addrs(&self) -> io::Result<T::Iter> {
755 (**self).to_socket_addrs()
759 #[stable(feature = "string_to_socket_addrs", since = "1.16.0")]
760 impl ToSocketAddrs for String {
761 type Iter = vec::IntoIter<SocketAddr>;
762 fn to_socket_addrs(&self) -> io::Result<vec::IntoIter<SocketAddr>> {
763 (&**self).to_socket_addrs()
767 #[cfg(all(test, not(target_os = "emscripten")))]
770 use net::test::{tsa, sa6, sa4};
773 fn to_socket_addr_ipaddr_u16() {
774 let a = Ipv4Addr::new(77, 88, 21, 11);
776 let e = SocketAddr::V4(SocketAddrV4::new(a, p));
777 assert_eq!(Ok(vec![e]), tsa((a, p)));
781 fn to_socket_addr_str_u16() {
782 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
783 assert_eq!(Ok(vec![a]), tsa(("77.88.21.11", 24352)));
785 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
786 assert_eq!(Ok(vec![a]), tsa(("2a02:6b8:0:1::1", 53)));
788 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
789 assert!(tsa(("localhost", 23924)).unwrap().contains(&a));
793 fn to_socket_addr_str() {
794 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
795 assert_eq!(Ok(vec![a]), tsa("77.88.21.11:24352"));
797 let a = sa6(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 53);
798 assert_eq!(Ok(vec![a]), tsa("[2a02:6b8:0:1::1]:53"));
800 let a = sa4(Ipv4Addr::new(127, 0, 0, 1), 23924);
801 assert!(tsa("localhost:23924").unwrap().contains(&a));
805 fn to_socket_addr_string() {
806 let a = sa4(Ipv4Addr::new(77, 88, 21, 11), 24352);
807 assert_eq!(Ok(vec![a]), tsa(&*format!("{}:{}", "77.88.21.11", "24352")));
808 assert_eq!(Ok(vec![a]), tsa(&format!("{}:{}", "77.88.21.11", "24352")));
809 assert_eq!(Ok(vec![a]), tsa(format!("{}:{}", "77.88.21.11", "24352")));
811 let s = format!("{}:{}", "77.88.21.11", "24352");
812 assert_eq!(Ok(vec![a]), tsa(s));
813 // s has been moved into the tsa call
816 // FIXME: figure out why this fails on openbsd and bitrig and fix it
818 #[cfg(not(any(windows, target_os = "openbsd", target_os = "bitrig")))]
819 fn to_socket_addr_str_bad() {
820 assert!(tsa("1200::AB00:1234::2552:7777:1313:34300").is_err());
825 fn ip4(low: u8) -> Ipv4Addr { Ipv4Addr::new(77, 88, 21, low) }
826 fn ip6(low: u16) -> Ipv6Addr { Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, low) }
828 let mut v4 = SocketAddrV4::new(ip4(11), 80);
829 assert_eq!(v4.ip(), &ip4(11));
831 assert_eq!(v4.ip(), &ip4(12));
833 let mut addr = SocketAddr::V4(v4);
834 assert_eq!(addr.ip(), IpAddr::V4(ip4(12)));
835 addr.set_ip(IpAddr::V4(ip4(13)));
836 assert_eq!(addr.ip(), IpAddr::V4(ip4(13)));
837 addr.set_ip(IpAddr::V6(ip6(14)));
838 assert_eq!(addr.ip(), IpAddr::V6(ip6(14)));
840 let mut v6 = SocketAddrV6::new(ip6(1), 80, 0, 0);
841 assert_eq!(v6.ip(), &ip6(1));
843 assert_eq!(v6.ip(), &ip6(2));
845 let mut addr = SocketAddr::V6(v6);
846 assert_eq!(addr.ip(), IpAddr::V6(ip6(2)));
847 addr.set_ip(IpAddr::V6(ip6(3)));
848 assert_eq!(addr.ip(), IpAddr::V6(ip6(3)));
849 addr.set_ip(IpAddr::V4(ip4(4)));
850 assert_eq!(addr.ip(), IpAddr::V4(ip4(4)));
855 let mut v4 = SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80);
856 assert_eq!(v4.port(), 80);
858 assert_eq!(v4.port(), 443);
860 let mut addr = SocketAddr::V4(v4);
861 assert_eq!(addr.port(), 443);
863 assert_eq!(addr.port(), 8080);
865 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 0);
866 assert_eq!(v6.port(), 80);
868 assert_eq!(v6.port(), 443);
870 let mut addr = SocketAddr::V6(v6);
871 assert_eq!(addr.port(), 443);
873 assert_eq!(addr.port(), 8080);
878 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 10, 0);
879 assert_eq!(v6.flowinfo(), 10);
881 assert_eq!(v6.flowinfo(), 20);
886 let mut v6 = SocketAddrV6::new(Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 0, 10);
887 assert_eq!(v6.scope_id(), 10);
889 assert_eq!(v6.scope_id(), 20);
894 let v4 = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(77, 88, 21, 11), 80));
895 assert!(v4.is_ipv4());
896 assert!(!v4.is_ipv6());
901 let v6 = SocketAddr::V6(SocketAddrV6::new(
902 Ipv6Addr::new(0x2a02, 0x6b8, 0, 1, 0, 0, 0, 1), 80, 10, 0));
903 assert!(!v6.is_ipv4());
904 assert!(v6.is_ipv6());