1.0.0[][src]Struct std::net::Ipv6Addr

pub struct Ipv6Addr { /* fields omitted */ }

An IPv6 address.

IPv6 addresses are defined as 128-bit integers in IETF RFC 4291. They are usually represented as eight 16-bit segments.

See IpAddr for a type encompassing both IPv4 and IPv6 addresses.

The size of an Ipv6Addr struct may vary depending on the target operating system.

Textual representation

Ipv6Addr provides a FromStr implementation. There are many ways to represent an IPv6 address in text, but in general, each segments is written in hexadecimal notation, and segments are separated by :. For more information, see IETF RFC 5952.

Examples

use std::net::Ipv6Addr;

let localhost = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1);
assert_eq!("::1".parse(), Ok(localhost));
assert_eq!(localhost.is_loopback(), true);Run

Methods

impl Ipv6Addr[src]

pub const fn new(
    a: u16,
    b: u16,
    c: u16,
    d: u16,
    e: u16,
    f: u16,
    g: u16,
    h: u16
) -> Ipv6Addr
[src]

Creates a new IPv6 address from eight 16-bit segments.

The result will represent the IP address a:b:c:d:e:f:g:h.

Examples

use std::net::Ipv6Addr;

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

pub const LOCALHOST: Self1.30.0[src]

An IPv6 address representing localhost: ::1.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::LOCALHOST;
assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));Run

pub const UNSPECIFIED: Self1.30.0[src]

An IPv6 address representing the unspecified address: ::

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::UNSPECIFIED;
assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0));Run

pub fn segments(&self) -> [u16; 8][src]

Returns the eight 16-bit segments that make up this address.

Examples

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).segments(),
           [0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff]);Run

pub fn is_unspecified(&self) -> bool1.7.0[src]

Returns true for the special 'unspecified' address (::).

This property is defined in IETF RFC 4291.

Examples

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unspecified(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0).is_unspecified(), true);Run

pub fn is_loopback(&self) -> bool1.7.0[src]

Returns true if this is a loopback address (::1).

This property is defined in IETF RFC 4291.

Examples

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_loopback(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_loopback(), true);Run

pub fn is_global(&self) -> bool[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if the address appears to be globally routable.

The following return false:

  • the loopback address
  • link-local and unique local unicast addresses
  • interface-, link-, realm-, admin- and site-local multicast addresses

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_global(), true);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_global(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1).is_global(), true);Run

pub fn is_unique_local(&self) -> bool[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if this is a unique local address (fc00::/7).

This property is defined in IETF RFC 4193.

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unique_local(), false);
assert_eq!(Ipv6Addr::new(0xfc02, 0, 0, 0, 0, 0, 0, 0).is_unique_local(), true);Run
🔬 This is a nightly-only experimental API. (ip #27709)

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if the address is a unicast link-local address (fe80::/64).

A common mis-conception is to think that "unicast link-local addresses start with fe80::", but the IETF RFC 4291 actually defines a stricter format for these addresses:

|   10     |
|  bits    |         54 bits         |          64 bits           |
+----------+-------------------------+----------------------------+
|1111111010|           0             |       interface ID         |
+----------+-------------------------+----------------------------+

This method validates the format defined in the RFC and won't recognize the following addresses such as fe80:0:0:1:: or fe81:: as unicast link-local addresses for example. If you need a less strict validation use is_unicast_link_local() instead.

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

let ip = Ipv6Addr::new(0xfe80, 0, 0, 0, 0, 0, 0, 0);
assert!(ip.is_unicast_link_local_strict());

let ip = Ipv6Addr::new(0xfe80, 0, 0, 0, 0xffff, 0xffff, 0xffff, 0xffff);
assert!(ip.is_unicast_link_local_strict());

let ip = Ipv6Addr::new(0xfe80, 0, 0, 1, 0, 0, 0, 0);
assert!(!ip.is_unicast_link_local_strict());
assert!(ip.is_unicast_link_local());

let ip = Ipv6Addr::new(0xfe81, 0, 0, 0, 0, 0, 0, 0);
assert!(!ip.is_unicast_link_local_strict());
assert!(ip.is_unicast_link_local());Run

See also

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if the address is a unicast link-local address (fe80::/10).

This method returns true for addresses in the range reserved by [RFC 4291 section 2.4], i.e. addresses with the following format:

|   10     |
|  bits    |         54 bits         |          64 bits           |
+----------+-------------------------+----------------------------+
|1111111010|    arbitratry value     |       interface ID         |
+----------+-------------------------+----------------------------+

As a result, this method consider addresses such as fe80:0:0:1:: or fe81:: to be unicast link-local addresses, whereas is_unicast_link_local_strict() does not. If you need a strict validation fully compliant with the RFC, use is_unicast_link_local_strict().

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

let ip = Ipv6Addr::new(0xfe80, 0, 0, 0, 0, 0, 0, 0);
assert!(ip.is_unicast_link_local());

let ip = Ipv6Addr::new(0xfe80, 0, 0, 0, 0xffff, 0xffff, 0xffff, 0xffff);
assert!(ip.is_unicast_link_local());

let ip = Ipv6Addr::new(0xfe80, 0, 0, 1, 0, 0, 0, 0);
assert!(ip.is_unicast_link_local());
assert!(!ip.is_unicast_link_local_strict());

let ip = Ipv6Addr::new(0xfe81, 0, 0, 0, 0, 0, 0, 0);
assert!(ip.is_unicast_link_local());
assert!(!ip.is_unicast_link_local_strict());Run

See also

pub fn is_unicast_site_local(&self) -> bool[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if this is a deprecated unicast site-local address (fec0::/10). The unicast site-local address format is defined in RFC 4291 section 2.5.7 as:

|   10     |
|  bits    |         54 bits         |         64 bits            |
+----------+-------------------------+----------------------------+
|1111111011|        subnet ID        |       interface ID         |
+----------+-------------------------+----------------------------+

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

assert_eq!(
    Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_site_local(),
    false
);
assert_eq!(Ipv6Addr::new(0xfec2, 0, 0, 0, 0, 0, 0, 0).is_unicast_site_local(), true);Run

Warning

As per RFC 3879, the whole FEC0::/10 prefix is deprecated. New software must not support site-local addresses.

pub fn is_documentation(&self) -> bool[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if this is an address reserved for documentation (2001:db8::/32).

This property is defined in IETF RFC 3849.

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_documentation(), false);
assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_documentation(), true);Run

pub fn is_unicast_global(&self) -> bool[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns true if the address is a globally routable unicast address.

The following return false:

  • the loopback address
  • the link-local addresses
  • unique local addresses
  • the unspecified address
  • the address range reserved for documentation

This method returns true for site-local addresses as per RFC 4291 section 2.5.7

The special behavior of [the site-local unicast] prefix defined in [RFC3513] must no longer
be supported in new implementations (i.e., new implementations must treat this prefix as
Global Unicast).

Examples

#![feature(ip)]

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast_global(), false);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_global(), true);Run

pub fn multicast_scope(&self) -> Option<Ipv6MulticastScope>[src]

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

extra functionality has not been scrutinized to the level that it should be to be stable

Returns the address's multicast scope if the address is multicast.

Examples

#![feature(ip)]

use std::net::{Ipv6Addr, Ipv6MulticastScope};

assert_eq!(
    Ipv6Addr::new(0xff0e, 0, 0, 0, 0, 0, 0, 0).multicast_scope(),
    Some(Ipv6MulticastScope::Global)
);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).multicast_scope(), None);Run

pub fn is_multicast(&self) -> bool1.7.0[src]

Returns true if this is a multicast address (ff00::/8).

This property is defined by IETF RFC 4291.

Examples

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).is_multicast(), true);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_multicast(), false);Run

pub fn to_ipv4(&self) -> Option<Ipv4Addr>[src]

Converts this address to an IPv4 address. Returns None if this address is neither IPv4-compatible or IPv4-mapped.

::a.b.c.d and ::ffff:a.b.c.d become a.b.c.d

Examples

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

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).to_ipv4(), None);
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).to_ipv4(),
           Some(Ipv4Addr::new(192, 10, 2, 255)));
assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4(),
           Some(Ipv4Addr::new(0, 0, 0, 1)));Run

pub const fn octets(&self) -> [u8; 16]1.12.0[src]

Returns the sixteen eight-bit integers the IPv6 address consists of.

use std::net::Ipv6Addr;

assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).octets(),
           [255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);Run

Trait Implementations

impl From<Ipv6Addr> for IpAddr1.16.0[src]

impl From<Ipv6Addr> for u1281.26.0[src]

fn from(ip: Ipv6Addr) -> u128[src]

Convert an Ipv6Addr into a host byte order u128.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::new(
    0x1020, 0x3040, 0x5060, 0x7080,
    0x90A0, 0xB0C0, 0xD0E0, 0xF00D,
);
assert_eq!(0x102030405060708090A0B0C0D0E0F00D_u128, u128::from(addr));Run

impl From<u128> for Ipv6Addr1.26.0[src]

fn from(ip: u128) -> Ipv6Addr[src]

Convert a host byte order u128 into an Ipv6Addr.

Examples

use std::net::Ipv6Addr;

let addr = Ipv6Addr::from(0x102030405060708090A0B0C0D0E0F00D_u128);
assert_eq!(
    Ipv6Addr::new(
        0x1020, 0x3040, 0x5060, 0x7080,
        0x90A0, 0xB0C0, 0xD0E0, 0xF00D,
    ),
    addr);Run

impl From<[u8; 16]> for Ipv6Addr1.9.0[src]

impl From<[u16; 8]> for Ipv6Addr1.16.0[src]

impl Display for Ipv6Addr[src]

impl Debug for Ipv6Addr[src]

impl PartialEq<Ipv6Addr> for Ipv6Addr[src]

impl PartialEq<IpAddr> for Ipv6Addr1.16.0[src]

impl PartialEq<Ipv6Addr> for IpAddr1.16.0[src]

impl Eq for Ipv6Addr[src]

impl Ord for Ipv6Addr[src]

impl PartialOrd<Ipv6Addr> for Ipv6Addr[src]

impl PartialOrd<Ipv6Addr> for IpAddr1.16.0[src]

impl PartialOrd<IpAddr> for Ipv6Addr1.16.0[src]

impl FromStr for Ipv6Addr[src]

type Err = AddrParseError

The associated error which can be returned from parsing.

impl Hash for Ipv6Addr[src]

impl Copy for Ipv6Addr[src]

impl Clone for Ipv6Addr[src]

Auto Trait Implementations

impl UnwindSafe for Ipv6Addr

impl RefUnwindSafe for Ipv6Addr

impl Unpin for Ipv6Addr

impl Send for Ipv6Addr

impl Sync for Ipv6Addr

Blanket Implementations

impl<T> From<T> for T[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = !

The type returned in the event of a conversion error.

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]