Struct embedded_nal::Ipv4Addr

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pub struct Ipv4Addr { /* private fields */ }
Expand description

An IPv4 address.

IPv4 addresses are defined as 32-bit integers in IETF RFC 791. They are usually represented as four octets.

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

§Textual representation

Ipv4Addr provides a FromStr implementation. The four octets are in decimal notation, divided by . (this is called “dot-decimal notation”). Notably, octal numbers and hexadecimal numbers are not allowed per IETF RFC 6943.

§Examples

use no_std_net::Ipv4Addr;

let localhost = Ipv4Addr::new(127, 0, 0, 1);
assert_eq!("127.0.0.1".parse(), Ok(localhost));
assert_eq!(localhost.is_loopback(), true);

Implementations§

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impl Ipv4Addr

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pub const fn new(a: u8, b: u8, c: u8, d: u8) -> Ipv4Addr

Creates a new IPv4 address from four eight-bit octets.

The result will represent the IP address a.b.c.d.

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::new(127, 0, 0, 1);
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pub const LOCALHOST: Ipv4Addr = _

An IPv4 address with the address pointing to localhost: 127.0.0.1

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::LOCALHOST;
assert_eq!(addr, Ipv4Addr::new(127, 0, 0, 1));
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pub const UNSPECIFIED: Ipv4Addr = _

An IPv4 address representing an unspecified address: 0.0.0.0

This corresponds to the constant INADDR_ANY in other languages.

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::UNSPECIFIED;
assert_eq!(addr, Ipv4Addr::new(0, 0, 0, 0));
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pub const BROADCAST: Ipv4Addr = _

An IPv4 address representing the broadcast address: 255.255.255.255

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::BROADCAST;
assert_eq!(addr, Ipv4Addr::new(255, 255, 255, 255));
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pub const fn octets(&self) -> [u8; 4]

Returns the four eight-bit integers that make up this address.

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::new(127, 0, 0, 1);
assert_eq!(addr.octets(), [127, 0, 0, 1]);
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pub const fn is_unspecified(&self) -> bool

Returns true for the special ‘unspecified’ address (0.0.0.0).

This property is defined in UNIX Network Programming, Second Edition, W. Richard Stevens, p. 891; see also ip7.

§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(0, 0, 0, 0).is_unspecified(), true);
assert_eq!(Ipv4Addr::new(45, 22, 13, 197).is_unspecified(), false);
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pub const fn is_loopback(&self) -> bool

Returns true if this is a loopback address (127.0.0.0/8).

This property is defined by IETF RFC 1122.

§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(127, 0, 0, 1).is_loopback(), true);
assert_eq!(Ipv4Addr::new(45, 22, 13, 197).is_loopback(), false);
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pub const fn is_private(&self) -> bool

Returns true if this is a private address.

The private address ranges are defined in IETF RFC 1918 and include:

  • 10.0.0.0/8
  • 172.16.0.0/12
  • 192.168.0.0/16
§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(10, 0, 0, 1).is_private(), true);
assert_eq!(Ipv4Addr::new(10, 10, 10, 10).is_private(), true);
assert_eq!(Ipv4Addr::new(172, 16, 10, 10).is_private(), true);
assert_eq!(Ipv4Addr::new(172, 29, 45, 14).is_private(), true);
assert_eq!(Ipv4Addr::new(172, 32, 0, 2).is_private(), false);
assert_eq!(Ipv4Addr::new(192, 168, 0, 2).is_private(), true);
assert_eq!(Ipv4Addr::new(192, 169, 0, 2).is_private(), false);

Returns true if the address is link-local (169.254.0.0/16).

This property is defined by IETF RFC 3927.

§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(169, 254, 0, 0).is_link_local(), true);
assert_eq!(Ipv4Addr::new(169, 254, 10, 65).is_link_local(), true);
assert_eq!(Ipv4Addr::new(16, 89, 10, 65).is_link_local(), false);
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pub const fn is_multicast(&self) -> bool

Returns true if this is a multicast address (224.0.0.0/4).

Multicast addresses have a most significant octet between 224 and 239, and is defined by IETF RFC 5771.

§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(224, 254, 0, 0).is_multicast(), true);
assert_eq!(Ipv4Addr::new(236, 168, 10, 65).is_multicast(), true);
assert_eq!(Ipv4Addr::new(172, 16, 10, 65).is_multicast(), false);
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pub const fn is_broadcast(&self) -> bool

Returns true if this is a broadcast address (255.255.255.255).

A broadcast address has all octets set to 255 as defined in IETF RFC 919.

§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(255, 255, 255, 255).is_broadcast(), true);
assert_eq!(Ipv4Addr::new(236, 168, 10, 65).is_broadcast(), false);
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pub const fn is_documentation(&self) -> bool

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

This is defined in IETF RFC 5737:

  • 192.0.2.0/24 (TEST-NET-1)
  • 198.51.100.0/24 (TEST-NET-2)
  • 203.0.113.0/24 (TEST-NET-3)
§Examples
use no_std_net::Ipv4Addr;

assert_eq!(Ipv4Addr::new(192, 0, 2, 255).is_documentation(), true);
assert_eq!(Ipv4Addr::new(198, 51, 100, 65).is_documentation(), true);
assert_eq!(Ipv4Addr::new(203, 0, 113, 6).is_documentation(), true);
assert_eq!(Ipv4Addr::new(193, 34, 17, 19).is_documentation(), false);
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pub const fn to_ipv6_compatible(&self) -> Ipv6Addr

Converts this address to an IPv4-compatible IPv6 address.

a.b.c.d becomes ::a.b.c.d

This isn’t typically the method you want; these addresses don’t typically function on modern systems. Use to_ipv6_mapped instead.

§Examples
use no_std_net::{Ipv4Addr, Ipv6Addr};

assert_eq!(
    Ipv4Addr::new(192, 0, 2, 255).to_ipv6_compatible(),
    Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0xc000, 0x2ff)
);
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pub const fn to_ipv6_mapped(&self) -> Ipv6Addr

Converts this address to an IPv4-mapped IPv6 address.

a.b.c.d becomes ::ffff:a.b.c.d

§Examples
use no_std_net::{Ipv4Addr, Ipv6Addr};

assert_eq!(Ipv4Addr::new(192, 0, 2, 255).to_ipv6_mapped(),
           Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc000, 0x2ff));

Trait Implementations§

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impl Clone for Ipv4Addr

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fn clone(&self) -> Ipv4Addr

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Ipv4Addr

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

Formats the value using the given formatter. Read more
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impl Display for Ipv4Addr

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

Formats the value using the given formatter. Read more
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impl From<[u8; 4]> for Ipv4Addr

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fn from(octets: [u8; 4]) -> Ipv4Addr

Creates an Ipv4Addr from a four element byte array.

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::from([13u8, 12u8, 11u8, 10u8]);
assert_eq!(Ipv4Addr::new(13, 12, 11, 10), addr);
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impl From<Ipv4Addr> for IpAddr

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fn from(ipv4: Ipv4Addr) -> IpAddr

Copies this address to a new IpAddr::V4.

§Examples
use no_std_net::{IpAddr, Ipv4Addr};

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

assert_eq!(
    IpAddr::V4(addr),
    IpAddr::from(addr)
)
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impl From<u32> for Ipv4Addr

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fn from(ip: u32) -> Ipv4Addr

Converts a host byte order u32 into an Ipv4Addr.

§Examples
use no_std_net::Ipv4Addr;

let addr = Ipv4Addr::from(0xcafebabe);
assert_eq!(Ipv4Addr::new(0xca, 0xfe, 0xba, 0xbe), addr);
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impl FromStr for Ipv4Addr

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type Err = AddrParseError

The associated error which can be returned from parsing.
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fn from_str(s: &str) -> Result<Ipv4Addr, AddrParseError>

Parses a string s to return a value of this type. Read more
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impl Hash for Ipv4Addr

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fn hash<H>(&self, s: &mut H)
where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Ipv4Addr

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fn cmp(&self, other: &Ipv4Addr) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq<IpAddr> for Ipv4Addr

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

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl PartialEq<Ipv4Addr> for IpAddr

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

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl PartialEq for Ipv4Addr

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

This method tests for self and other values to be equal, and is used by ==.
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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.
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impl PartialOrd<IpAddr> for Ipv4Addr

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl PartialOrd<Ipv4Addr> for IpAddr

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl PartialOrd for Ipv4Addr

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for Ipv4Addr

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impl Eq for Ipv4Addr

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.