Enum trust_dns::rr::dns_class::DNSClass

pub enum DNSClass {
    IN,
    CH,
    HS,
    NONE,
    ANY,
    OPT(u16),
}

The DNS Record class

Variants

IN

Internet

CH

Chaos

HS

Hesiod

NONE

QCLASS NONE

ANY

QCLASS * (ANY)

OPT(u16)

Special class for OPT Version, it was overloaded for EDNS - RFC 6891 From the RFC: Values lower than 512 MUST be treated as equal to 512

Methods

impl DNSClass

pub fn from_u16(value: u16) -> Result<DNSClass, ProtoError>

Convert from u16 to DNSClass

use trust_dns_proto::rr::dns_class::DNSClass;

let var = DNSClass::from_u16(1).unwrap();
assert_eq!(DNSClass::IN, var);

pub fn for_opt(value: u16) -> DNSClass

Return the OPT version from value

Trait Implementations

impl Copy for DNSClass

impl Clone for DNSClass

fn clone(&self) -> DNSClass

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for DNSClass

impl PartialEq<DNSClass> for DNSClass

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

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

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

This method tests for !=.

impl FromStr for DNSClass

type Err = ProtoError

The associated error which can be returned from parsing.

fn from_str(str: &str) -> Result<DNSClass, ProtoError>

Convert from &str to DNSClass

use std::str::FromStr;
use trust_dns_proto::rr::dns_class::DNSClass;

let var: DNSClass = DNSClass::from_str("IN").unwrap();
assert_eq!(DNSClass::IN, var);

impl Display for DNSClass

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

Formats the value using the given formatter.

impl BinEncodable for DNSClass

fn emit(&self, encoder: &mut BinEncoder) -> Result<(), ProtoError>

Write the type to the stream

fn to_bytes(&self) -> Result<Vec<u8>, ProtoError>

Returns the object in binary form

impl PartialOrd<DNSClass> for DNSClass

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

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

#[must_use] fn lt(&self, other: &Rhs) -> bool

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

#[must_use] fn le(&self, other: &Rhs) -> bool

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

#[must_use] fn gt(&self, other: &Rhs) -> bool

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

#[must_use] 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<'r> BinDecodable<'r> for DNSClass

fn read(decoder: &mut BinDecoder) -> Result<DNSClass, ProtoError>

Read the type from the stream

fn from_bytes(bytes: &'r [u8]) -> Result<Self, ProtoError>

Returns the object in binary form

impl Debug for DNSClass

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

Formats the value using the given formatter.

impl Hash for DNSClass

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Ord for DNSClass

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.