Struct domain::base::header::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.

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 Compose for HeaderSection

fn compose<T: OctetsBuilder>(&self, target: &mut T) -> Result<(), ShortBuf>

Appends the concrete representation of the value to the target.

fn compose_canonical<T: OctetsBuilder + AsMut<[u8]>>(
    &self,
    target: &mut T
) -> Result<(), ShortBuf>

Appends the canonical representation of the value to the target.

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<Ref: AsRef<[u8]>> Parse<Ref> for HeaderSection

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

Extracts a value from the beginning of parser.

fn skip(parser: &mut Parser<Ref>) -> Result<(), ParseError>

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

impl PartialEq<HeaderSection> for HeaderSection

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

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

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.

impl Copy for HeaderSection

impl Eq for HeaderSection

impl StructuralEq for HeaderSection

impl StructuralPartialEq for HeaderSection