Enum OptionCode

pub enum OptionCode {
    Llq,
    Ul,
    Nsid,
    Dau,
    Dhu,
    N3u,
    ClientSubnet,
    Expire,
    Cookie,
    TcpKeepalive,
    Padding,
    Chain,
    KeyTag,
    DeviceId,
    Int(u16),
}

DNS EDNS0 Option Codes (OPT).

The record data of OPT records is a sequence of options. The type of each of these options is given through an option code, a 16 bit value.

The currently assigned option codes can be found in the IANA registry. The type is complete as of 2019-01-28.

Variants

Llq

Ul

Nsid

Dau

Dhu

N3u

ClientSubnet

Expire

Cookie

TcpKeepalive

Padding

Chain

KeyTag

DeviceId

Int(u16)

A raw class value given through its integer.

Implementations

impl OptionCode

pub fn from_int(value: u16) -> Self

Returns the option code for the given raw integer value.

pub fn to_int(self) -> u16

Returns the raw integer value for this option code.

Trait Implementations

impl Clone for OptionCode

fn clone(&self) -> OptionCode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Compose for OptionCode

fn compose_len(&self) -> usize

Returns the number of bytes this value will need without compression.

fn compose<B: BufMut>(&self, buf: &mut B)

Appends the uncompressed representation of this value to buf.

impl Debug for OptionCode

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

Formats the value using the given formatter.

impl Display for OptionCode

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

Formats the value using the given formatter.

impl From<OptionCode> for u16

fn from(value: OptionCode) -> Self

Converts to this type from the input type.

impl From<u16> for OptionCode

fn from(value: u16) -> Self

Converts to this type from the input type.

impl Hash for OptionCode

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 Ord for OptionCode

fn cmp(&self, other: &Self) -> 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 Parse for OptionCode

type Err = ShortBuf

The type of an error returned when parsing fails.

fn parse(parser: &mut Parser) -> Result<Self, Self::Err>

Extracts a value from the beginning of parser.

fn skip(parser: &mut Parser) -> Result<(), Self::Err>

Skips over a value of this type at the beginning of parser.

impl PartialEq<OptionCode> for u16

fn eq(&self, other: &OptionCode) -> 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 PartialEq<u16> for OptionCode

fn eq(&self, other: &u16) -> 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 PartialEq for OptionCode

fn eq(&self, other: &Self) -> 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<OptionCode> for u16

fn partial_cmp(&self, other: &OptionCode) -> 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 PartialOrd<u16> for OptionCode

fn partial_cmp(&self, other: &u16) -> 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 PartialOrd for OptionCode

fn partial_cmp(&self, other: &Self) -> 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 Copy for OptionCode

impl Eq for OptionCode