Opcode

uwuhi_async::packet

Struct Opcode

pub struct Opcode(/* private fields */);

Expand description

DNS message operation codes.

The Opcode tells the server what the client wants it to do. The vast majority of messages use Opcode::QUERY to indicate that the message is either a DNS query or a response to a query.

Implementations§

impl Opcode

pub const QUERY: Opcode

Query (or response to a query).

A client sends a message with this opcode and at least one entry in the Question section to retrieve information (resource records) associated with a domain name. The server will reply with a message with this opcode, a copy of the client’s Question section, and an Answer section containing the requested resource records.

pub const IQUERY: Opcode

Inverse Query (or response to an inverse query).

This feature is optional and servers might not support it.

A client sends a message with this opcode and at least one entry in the Answer section to retrieve the domain name associated with the resource record (typically an IP address). The server will reply with a message with this opcode, a copy of the client’s Answer section, and a Question section containing the matching domain names.

pub const STATUS: Opcode

Server status request.

pub const NOTIFY: Opcode

pub const UPDATE: Opcode

Trait Implementations§

impl Clone for Opcode

fn clone(&self) -> Opcode

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for Opcode

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

Formats the value using the given formatter. Read more

impl Display for Opcode

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

Formats the value using the given formatter. Read more

impl PartialEq for Opcode

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

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 Zeroable for Opcode

fn zeroed() -> Self

Calls zeroed. Read more

impl Copy for Opcode

impl Eq for Opcode

impl Pod for Opcode

impl StructuralPartialEq for Opcode

Auto Trait Implementations§

impl Freeze for Opcode

impl RefUnwindSafe for Opcode

impl Send for Opcode

impl Sync for Opcode

impl Unpin for Opcode

impl UnwindSafe for Opcode

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CheckedBitPattern for T
where T: AnyBitPattern,

type Bits = T

Self must have the same layout as the specified Bits except for the possible invalid bit patterns being checked during is_valid_bit_pattern.

fn is_valid_bit_pattern(_bits: &T) -> bool

If this function returns true, then it must be valid to reinterpret bits as &Self.

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

impl<T> AnyBitPattern for T
where T: Pod,

impl<T> NoUninit for T
where T: Pod,