Struct HeaderSection

pub struct HeaderSection { /* private fields */ }

The complete header section of a DNS message.

Consists of a Header directly followed by a HeaderCounts.

You can create an owned value via the new function or the Default trait and acquire a pointer referring the the header section of an existing DNS message via the for_message_slice or for_message_slice_mut functions.

Implementations

impl HeaderSection

Creation and Conversion

pub fn new() -> Self

Creates a new header section.

The value will have all header and header counts fields set to zero or false.

pub fn for_message_slice(s: &[u8]) -> &HeaderSection

Creates a reference from the octets slice of a message.

Panics

This function panics if the octets slice is shorter than 12 octets.

pub fn for_message_slice_mut(s: &mut [u8]) -> &mut HeaderSection

Creates a mutable reference from the octets slice of a message.

Panics

This function panics if the octets slice is shorter than 12 octets.

pub fn as_slice(&self) -> &[u8]

Returns a reference to the underlying octets slice.

impl HeaderSection

Access to Header and Counts

pub fn header(&self) -> &Header

Returns a reference to the header.

pub fn header_mut(&mut self) -> &mut Header

Returns a mutable reference to the header.

pub fn counts(&self) -> &HeaderCounts

Returns a reference to the header counts.

pub fn counts_mut(&mut self) -> &mut HeaderCounts

Returns a mutable reference to the header counts.

impl HeaderSection

Parsing and Composing

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

pub fn compose<Target: OctetsBuilder + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

Trait Implementations

impl AsMut<Header> for HeaderSection

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

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

impl AsMut<HeaderCounts> for HeaderSection

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

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

impl AsRef<Header> for HeaderSection

fn as_ref(&self) -> &Header

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

impl AsRef<HeaderCounts> for HeaderSection

fn as_ref(&self) -> &HeaderCounts

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

impl Clone for HeaderSection

fn clone(&self) -> HeaderSection

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HeaderSection

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

Formats the value using the given formatter.

impl Default for HeaderSection

fn default() -> HeaderSection

Returns the “default value” for a type.

impl PartialEq for HeaderSection

fn eq(&self, other: &HeaderSection) -> 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 Copy for HeaderSection

impl Eq for HeaderSection

impl StructuralPartialEq for HeaderSection