Struct A

pub struct A { /* private fields */ }

A record data.

A records convey the IPv4 address of a host. The wire format is the 32 bit IPv4 address in network byte order. The representation file format is the usual dotted notation.

The A record type is defined in RFC 1035, section 3.4.1.

Implementations

impl A

pub fn new(addr: Ipv4Addr) -> A

Creates a new A record data from an IPv4 address.

pub fn from_octets(a: u8, b: u8, c: u8, d: u8) -> A

Creates a new A record from the IPv4 address components.

pub fn addr(&self) -> Ipv4Addr

pub fn set_addr(&mut self, addr: Ipv4Addr)

pub fn parse<Octs: AsRef<[u8]> + ?Sized>( parser: &mut Parser<'_, Octs>, ) -> Result<Self, ParseError>

pub fn scan<S: Scanner>(scanner: &mut S) -> Result<Self, S::Error>

Trait Implementations

impl AsMut<Ipv4Addr> for A

fn as_mut(&mut self) -> &mut Ipv4Addr

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<Ipv4Addr> for A

fn as_ref(&self) -> &Ipv4Addr

Converts this type into a shared reference of the (usually inferred) input type.

impl CanonicalOrd for A

fn canonical_cmp(&self, other: &Self) -> Ordering

Returns the canonical ordering between self and other.

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

Returns whether self is canonically less than other.

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

Returns whether self is canonically less than or equal to other.

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

Returns whether self is canonically greater than other.

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

Returns whether self is canonically greater than or equal to other.

impl Clone for A

fn clone(&self) -> A

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ComposeRecordData for A

fn rdlen(&self, _compress: bool) -> Option<u16>

Returns the length of the record data if available.

fn compose_rdata<Target: Composer + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

Appends the wire format of the record data into target.

fn compose_canonical_rdata<Target: Composer + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

Appends the canonical wire format of the record data into target.

fn compose_len_rdata<Target: Composer + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

Appends the record data prefixed with its length.

fn compose_canonical_len_rdata<Target: Composer + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

Appends the record data prefixed with its length.

impl Debug for A

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

Formats the value using the given formatter.

impl Display for A

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

Formats the value using the given formatter.

impl<O, N> From<A> for AllRecordData<O, N>

fn from(value: A) -> Self

Converts to this type from the input type.

impl From<A> for Ipv4Addr

fn from(a: A) -> Self

Converts to this type from the input type.

impl<O, N> From<A> for ZoneRecordData<O, N>

fn from(value: A) -> Self

Converts to this type from the input type.

impl From<Ipv4Addr> for A

fn from(addr: Ipv4Addr) -> Self

Converts to this type from the input type.

impl FromStr for A

type Err = <Ipv4Addr as FromStr>::Err

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for A

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

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 OctetsFrom<A> for A

type Error = Infallible

fn try_octets_from(source: A) -> Result<Self, Self::Error>

Performs the conversion.

fn octets_from(source: Source) -> Self

where Self::Error: Into<Infallible>,

Performs an infallible conversion.

impl Ord for A

fn cmp(&self, other: &A) -> 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<'a, Octs: AsRef<[u8]> + ?Sized> ParseRecordData<'a, Octs> for A

fn parse_rdata( rtype: Rtype, parser: &mut Parser<'a, Octs>, ) -> Result<Option<Self>, ParseError>

Parses the record data.

impl PartialEq for A

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for A

fn partial_cmp(&self, other: &A) -> 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 RecordData for A

fn rtype(&self) -> Rtype

Returns the record type associated with this record data instance.

impl Eq for A

impl StructuralPartialEq for A