Enum core::net::IpAddr

pub enum IpAddr {
    V4(Ipv4Addr),
    V6(Ipv6Addr),
}

An IP address, either IPv4 or IPv6.

This enum can contain either an Ipv4Addr or an Ipv6Addr, see their respective documentation for more details.

Examples

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

let localhost_v4 = IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1));
let localhost_v6 = IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));

assert_eq!("127.0.0.1".parse(), Ok(localhost_v4));
assert_eq!("::1".parse(), Ok(localhost_v6));

assert_eq!(localhost_v4.is_ipv6(), false);
assert_eq!(localhost_v4.is_ipv4(), true);

Variants

V4(Ipv4Addr)

An IPv4 address.

V6(Ipv6Addr)

An IPv6 address.

Implementations

impl IpAddr

pub const fn is_unspecified(&self) -> bool

Returns true for the special ‘unspecified’ address.

See the documentation for Ipv4Addr::is_unspecified() and Ipv6Addr::is_unspecified() for more details.

Examples

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)).is_unspecified(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)).is_unspecified(), true);

pub const fn is_loopback(&self) -> bool

Returns true if this is a loopback address.

See the documentation for Ipv4Addr::is_loopback() and Ipv6Addr::is_loopback() for more details.

Examples

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)).is_loopback(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1)).is_loopback(), true);

pub fn is_global(&self) -> bool

🔬This is a nightly-only experimental API. (ip #27709)

Returns true if the address appears to be globally routable.

See the documentation for Ipv4Addr::is_global() and Ipv6Addr::is_global() for more details.

Examples

#![feature(ip)]

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(80, 9, 12, 3)).is_global(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1)).is_global(), true);

pub const fn is_multicast(&self) -> bool

Returns true if this is a multicast address.

See the documentation for Ipv4Addr::is_multicast() and Ipv6Addr::is_multicast() for more details.

Examples

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(224, 254, 0, 0)).is_multicast(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0)).is_multicast(), true);

pub fn is_documentation(&self) -> bool

🔬This is a nightly-only experimental API. (ip #27709)

Returns true if this address is in a range designated for documentation.

See the documentation for Ipv4Addr::is_documentation() and Ipv6Addr::is_documentation() for more details.

Examples

#![feature(ip)]

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_documentation(), true);
assert_eq!(
    IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_documentation(),
    true
);

pub const fn is_benchmarking(&self) -> bool

🔬This is a nightly-only experimental API. (ip #27709)

Returns true if this address is in a range designated for benchmarking.

See the documentation for Ipv4Addr::is_benchmarking() and Ipv6Addr::is_benchmarking() for more details.

Examples

#![feature(ip)]

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(198, 19, 255, 255)).is_benchmarking(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0x2, 0, 0, 0, 0, 0, 0)).is_benchmarking(), true);

pub const fn is_ipv4(&self) -> bool

Returns true if this address is an IPv4 address, and false otherwise.

Examples

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_ipv4(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_ipv4(), false);

pub const fn is_ipv6(&self) -> bool

Returns true if this address is an IPv6 address, and false otherwise.

Examples

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

assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_ipv6(), false);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_ipv6(), true);

pub const fn to_canonical(&self) -> IpAddr

Converts this address to an IpAddr::V4 if it is an IPv4-mapped IPv6 addresses, otherwise it returns self as-is.

Examples

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

let localhost_v4 = Ipv4Addr::new(127, 0, 0, 1);

assert_eq!(IpAddr::V4(localhost_v4).to_canonical(), localhost_v4);
assert_eq!(IpAddr::V6(localhost_v4.to_ipv6_mapped()).to_canonical(), localhost_v4);
assert_eq!(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)).to_canonical().is_loopback(), true);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1)).is_loopback(), false);
assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1)).to_canonical().is_loopback(), true);

impl IpAddr

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

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

Parse an IP address from a slice of bytes.

#![feature(addr_parse_ascii)]

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

let localhost_v4 = IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1));
let localhost_v6 = IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));

assert_eq!(IpAddr::parse_ascii(b"127.0.0.1"), Ok(localhost_v4));
assert_eq!(IpAddr::parse_ascii(b"::1"), Ok(localhost_v6));

Trait Implementations

impl Clone for IpAddr

fn clone(&self) -> IpAddr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for IpAddr

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

Formats the value using the given formatter.

impl Display for IpAddr

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

Formats the value using the given formatter.

impl From<[u16; 8]> for IpAddr

fn from(segments: [u16; 8]) -> IpAddr

Creates an IpAddr::V6 from an eight element 16-bit array.

Examples

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

let addr = IpAddr::from([
    525u16, 524u16, 523u16, 522u16,
    521u16, 520u16, 519u16, 518u16,
]);
assert_eq!(
    IpAddr::V6(Ipv6Addr::new(
        0x20d, 0x20c,
        0x20b, 0x20a,
        0x209, 0x208,
        0x207, 0x206
    )),
    addr
);

impl From<[u8; 16]> for IpAddr

fn from(octets: [u8; 16]) -> IpAddr

Creates an IpAddr::V6 from a sixteen element byte array.

Examples

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

let addr = IpAddr::from([
    25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8,
    17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8,
]);
assert_eq!(
    IpAddr::V6(Ipv6Addr::new(
        0x1918, 0x1716,
        0x1514, 0x1312,
        0x1110, 0x0f0e,
        0x0d0c, 0x0b0a
    )),
    addr
);

impl From<[u8; 4]> for IpAddr

fn from(octets: [u8; 4]) -> IpAddr

Creates an IpAddr::V4 from a four element byte array.

Examples

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

let addr = IpAddr::from([13u8, 12u8, 11u8, 10u8]);
assert_eq!(IpAddr::V4(Ipv4Addr::new(13, 12, 11, 10)), addr);

impl From<Ipv4Addr> for IpAddr

fn from(ipv4: Ipv4Addr) -> IpAddr

Copies this address to a new IpAddr::V4.

Examples

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

let addr = Ipv4Addr::new(127, 0, 0, 1);

assert_eq!(
    IpAddr::V4(addr),
    IpAddr::from(addr)
)

impl From<Ipv6Addr> for IpAddr

fn from(ipv6: Ipv6Addr) -> IpAddr

Copies this address to a new IpAddr::V6.

Examples

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

let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff);

assert_eq!(
    IpAddr::V6(addr),
    IpAddr::from(addr)
);

impl FromStr for IpAddr

type Err = AddrParseError

The associated error which can be returned from parsing.

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

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

impl Hash for IpAddr

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

Feeds this value into the given Hasher.

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

where Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for IpAddr

fn cmp(&self, other: &IpAddr) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq<IpAddr> for Ipv4Addr

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<IpAddr> for Ipv6Addr

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Ipv4Addr> for IpAddr

fn eq(&self, other: &Ipv4Addr) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Ipv6Addr> for IpAddr

fn eq(&self, other: &Ipv6Addr) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for IpAddr

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<IpAddr> for Ipv4Addr

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<IpAddr> for Ipv6Addr

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Ipv4Addr> for IpAddr

fn partial_cmp(&self, other: &Ipv4Addr) -> Option<Ordering>

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd<Ipv6Addr> for IpAddr

fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering>

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd for IpAddr

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for IpAddr

impl Eq for IpAddr

impl StructuralPartialEq for IpAddr