Struct domain::base::question::Question

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pub struct Question<N> { /* private fields */ }
Expand description

A question in a DNS message.

In DNS, a question describes what is requested in a query. It consists of three elements: a domain name, a record type, and a class. This type represents such a question.

Questions are generic over the domain name type. When read from an actual message, a ParsedDname has to be used because the name part may be compressed.

Implementations§

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impl<N> Question<N>

§Creation and Conversion

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pub fn new(qname: N, qtype: Rtype, qclass: Class) -> Self

Creates a new question from its three componets.

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pub fn new_in(qname: N, qtype: Rtype) -> Self

Creates a new question from a name and record type, assuming class IN.

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pub fn into_qname(self) -> N

Converts the question into the qname.

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impl<N: ToDname> Question<N>

§Field Access

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pub fn qname(&self) -> &N

Returns a reference to the domain nmae in the question,

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pub fn qtype(&self) -> Rtype

Returns the record type of the question.

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pub fn qclass(&self) -> Class

Returns the class of the question.

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impl<Octs> Question<ParsedDname<Octs>>

§Parsing and Composing

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pub fn parse<'a, Src: Octets<Range<'a> = Octs> + ?Sized + 'a>( parser: &mut Parser<'a, Src>, ) -> Result<Self, ParseError>

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impl<N: ToDname> Question<N>

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

Trait Implementations§

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impl<N, NN> CanonicalOrd<Question<NN>> for Question<N>
where N: ToDname, NN: ToDname,

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fn canonical_cmp(&self, other: &Question<NN>) -> Ordering

Returns the canonical ordering between self and other.
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fn canonical_lt(&self, other: &Rhs) -> bool

Returns whether self is canonically less than other.
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fn canonical_le(&self, other: &Rhs) -> bool

Returns whether self is canonically less than or equal to other.
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fn canonical_gt(&self, other: &Rhs) -> bool

Returns whether self is canonically greater than other.
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fn canonical_ge(&self, other: &Rhs) -> bool

Returns whether self is canonically greater than or equal to other.
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impl<N: Clone> Clone for Question<N>

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fn clone(&self) -> Question<N>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<Name: ToDname> ComposeQuestion for Question<Name>

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fn compose_question<Target: Composer + ?Sized>( &self, target: &mut Target, ) -> Result<(), Target::AppendError>

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impl<N: Debug> Debug for Question<N>

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

Formats the value using the given formatter. Read more
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impl<N: Display> Display for Question<N>

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

Formats the value using the given formatter. Read more
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impl<N: ToDname> From<(N, Rtype)> for Question<N>

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fn from((name, rtype): (N, Rtype)) -> Self

Converts to this type from the input type.
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impl<N: ToDname> From<(N, Rtype, Class)> for Question<N>

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fn from((name, rtype, class): (N, Rtype, Class)) -> Self

Converts to this type from the input type.
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impl<N: Hash> Hash for Question<N>

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<Name, SrcName> OctetsFrom<Question<SrcName>> for Question<Name>
where Name: OctetsFrom<SrcName>,

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type Error = <Name as OctetsFrom<SrcName>>::Error

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fn try_octets_from(source: Question<SrcName>) -> Result<Self, Self::Error>

Performs the conversion.
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impl<N: ToDname> Ord for Question<N>

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl<N, NN> PartialEq<Question<NN>> for Question<N>
where N: ToDname, NN: ToDname,

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fn eq(&self, other: &Question<NN>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<N, NN> PartialOrd<Question<NN>> for Question<N>
where N: ToDname, NN: ToDname,

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl<N: Copy> Copy for Question<N>

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impl<N: ToDname> Eq for Question<N>

Auto Trait Implementations§

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impl<N> Freeze for Question<N>
where N: Freeze,

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impl<N> RefUnwindSafe for Question<N>
where N: RefUnwindSafe,

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impl<N> Send for Question<N>
where N: Send,

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impl<N> Sync for Question<N>
where N: Sync,

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impl<N> Unpin for Question<N>
where N: Unpin,

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impl<N> UnwindSafe for Question<N>
where N: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> CloneToUninit for T
where T: Copy,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<Source, Target> OctetsInto<Target> for Source
where Target: OctetsFrom<Source>,

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type Error = <Target as OctetsFrom<Source>>::Error

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fn try_octets_into( self, ) -> Result<Target, <Source as OctetsInto<Target>>::Error>

Performs the conversion.
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fn octets_into(self) -> Target
where Self::Error: Into<Infallible>,

Performs an infallible conversion.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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fn with_current_subscriber(self) -> WithDispatch<Self>

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