Enum SocketAddr 

pub enum SocketAddr {
    V4(SocketAddrV4),
    V6(SocketAddrV6),
}

An internet socket address, either IPv4 or IPv6.

Internet socket addresses consist of an IP address, a 16-bit port number, as well as possibly some version-dependent additional information. See SocketAddrV4’s and SocketAddrV6’s respective documentation for more details.

Portability

SocketAddr is intended to be a portable representation of socket addresses and is likely not the same as the internal socket address type used by the target operating system’s API. Like all repr(Rust) structs, however, its exact layout remains undefined and should not be relied upon between builds.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);

assert_eq!("127.0.0.1:8080".parse(), Ok(socket));
assert_eq!(socket.port(), 8080);
assert_eq!(socket.is_ipv4(), true);

Variants

V4(SocketAddrV4)

An IPv4 socket address.

V6(SocketAddrV6)

An IPv6 socket address.

Implementations

impl SocketAddr

pub fn parse_ascii(b: &[u8]) -> Result<SocketAddr, AddrParseError>

🔬This is a nightly-only experimental API. (addr_parse_ascii #101035)

Parse a socket address from a slice of bytes.

#![feature(addr_parse_ascii)]

use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};

let socket_v4 = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
let socket_v6 = SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)), 8080);

assert_eq!(SocketAddr::parse_ascii(b"127.0.0.1:8080"), Ok(socket_v4));
assert_eq!(SocketAddr::parse_ascii(b"[::1]:8080"), Ok(socket_v6));

impl SocketAddr

pub const fn new(ip: IpAddr, port: u16) -> SocketAddr

Creates a new socket address from an IP address and a port number.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)));
assert_eq!(socket.port(), 8080);

pub const fn ip(&self) -> IpAddr

Returns the IP address associated with this socket address.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)));

pub const fn set_ip(&mut self, new_ip: IpAddr)

Changes the IP address associated with this socket address.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
socket.set_ip(IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1)));
assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1)));

pub const fn port(&self) -> u16

Returns the port number associated with this socket address.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
assert_eq!(socket.port(), 8080);

pub const fn set_port(&mut self, new_port: u16)

Changes the port number associated with this socket address.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
socket.set_port(1025);
assert_eq!(socket.port(), 1025);

pub const fn is_ipv4(&self) -> bool

Returns true if the IP address in this SocketAddr is an IPv4 address, and false otherwise.

Examples

use std::net::{IpAddr, Ipv4Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080);
assert_eq!(socket.is_ipv4(), true);
assert_eq!(socket.is_ipv6(), false);

pub const fn is_ipv6(&self) -> bool

Returns true if the IP address in this SocketAddr is an IPv6 address, and false otherwise.

Examples

use std::net::{IpAddr, Ipv6Addr, SocketAddr};

let socket = SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 65535, 0, 1)), 8080);
assert_eq!(socket.is_ipv4(), false);
assert_eq!(socket.is_ipv6(), true);

pub const fn unspecified_from(this: SocketAddr) -> SocketAddr

🔬This is a nightly-only experimental API. (addr_unspecified_from #158975)

Returns the unspecified socket address for the same IP version.

Returns 0.0.0.0:0 for IPv4 and [::]:0 for IPv6. For IPv6, this method preserves the flow information and scope ID.

Use this method when you must bind a socket to an unspecified local address that uses the same IP version as a remote address.

Examples

#![feature(addr_unspecified_from)]
use std::net::{SocketAddr, SocketAddrV4, SocketAddrV6, Ipv4Addr, Ipv6Addr};

let addr = SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 3000));
assert_eq!(
    SocketAddr::unspecified_from(addr),
    SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::UNSPECIFIED, 0))
);

let addr = SocketAddr::V6(SocketAddrV6::new(
    Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 1),
    443,
    0x1234,
    5,
));

let unspecified = SocketAddr::unspecified_from(addr);
assert_eq!(unspecified.ip(), Ipv6Addr::UNSPECIFIED);
if let SocketAddr::V6(v6) = unspecified {
    assert_eq!(v6.flowinfo(), 0x1234);
    assert_eq!(v6.scope_id(), 5);
}

Trait Implementations

impl Clone for SocketAddr

fn clone(&self) -> SocketAddr

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SocketAddr

impl Debug for SocketAddr

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for SocketAddr

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for SocketAddr

impl<I> From<(I, u16)> for SocketAddr

where I: Into<IpAddr>,

fn from(pieces: (I, u16)) -> SocketAddr

Converts a tuple struct (Into<IpAddr>, u16) into a SocketAddr.

This conversion creates a SocketAddr::V4 for an IpAddr::V4 and creates a SocketAddr::V6 for an IpAddr::V6.

u16 is treated as port of the newly created SocketAddr.

impl From<SocketAddrV4> for SocketAddr

fn from(sock4: SocketAddrV4) -> SocketAddr

Converts a SocketAddrV4 into a SocketAddr::V4.

impl From<SocketAddrV6> for SocketAddr

fn from(sock6: SocketAddrV6) -> SocketAddr

Converts a SocketAddrV6 into a SocketAddr::V6.

impl FromStr for SocketAddr

type Err = AddrParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<SocketAddr, AddrParseError>

Parses a string s to return a value of this type.

impl Hash for SocketAddr

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SocketAddr

fn cmp(&self, other: &SocketAddr) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SocketAddr

fn eq(&self, other: &SocketAddr) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for SocketAddr

fn partial_cmp(&self, other: &SocketAddr) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for SocketAddr

impl ToSocketAddrs for SocketAddr

type Iter = IntoIter<SocketAddr>

Returned iterator over socket addresses which this type may correspond to.

fn to_socket_addrs(&self) -> Result<IntoIter<SocketAddr>>

Converts this object to an iterator of resolved SocketAddrs.