Struct domain::base::opt::OptionHeader

pub struct OptionHeader { /* private fields */ }

The header of an OPT option.

This header contains a 16 bit option code identifying the kind of option we are dealing with and a 16 bit length describing the lenngth in octets of the option data.

Implementations

impl OptionHeader

pub fn new(code: u16, len: u16) -> Self

Creates a new option header from code and length.

pub fn code(self) -> u16

Returns the option code.

pub fn len(self) -> u16

Returns the length of the option data.

Trait Implementations

impl Clone for OptionHeader

fn clone(&self) -> OptionHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Compose for OptionHeader

fn compose<T: OctetsBuilder + AsMut<[u8]>>(
    &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 OptionHeader

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

Formats the value using the given formatter.

impl<Octets: AsRef<[u8]>> Parse<Octets> for OptionHeader

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

Extracts a value from the beginning of parser.

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

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

impl Copy for OptionHeader