Struct trust_dns_proto::op::query::Query

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pub struct Query { /* private fields */ }
Expand description

Query struct for looking up resource records, basically a resource record without RDATA.

RFC 1035, DOMAIN NAMES - IMPLEMENTATION AND SPECIFICATION, November 1987

4.1.2. Question section format

The question section is used to carry the "question" in most queries,
i.e., the parameters that define what is being asked.  The section
contains QDCOUNT (usually 1) entries, each of the following format:

                                    1  1  1  1  1  1
      0  1  2  3  4  5  6  7  8  9  0  1  2  3  4  5
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                                               |
    /                     QNAME / ZNAME             /
    /                                               /
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                     QTYPE / ZTYPE             |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |                     QCLASS / ZCLASS           |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+

Implementations§

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impl Query

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pub fn new() -> Self

Return a default query with an empty name and A, IN for the query_type and query_class

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pub fn query(name: Name, query_type: RecordType) -> Self

Create a new query from name and type, class defaults to IN

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pub fn set_name(&mut self, name: Name) -> &mut Self

replaces name with the new name

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pub fn set_query_type(&mut self, query_type: RecordType) -> &mut Self

Specify the RecordType being queried

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pub fn set_query_class(&mut self, query_class: DNSClass) -> &mut Self

Specify÷ the DNS class of the Query, almost always IN

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pub fn set_mdns_unicast_response(&mut self, flag: bool) -> &mut Self

Changes mDNS unicast-response bit See RFC 6762

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pub fn name(&self) -> &Name

QNAME           a domain name represented as a sequence of labels, where
                each label consists of a length octet followed by that
                number of octets.  The domain name terminates with the
                zero length octet for the null label of the root.  Note
                that this field may be an odd number of octets; no
                padding is used.
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pub fn query_type(&self) -> RecordType

QTYPE           a two octet code which specifies the type of the query.
                The values for this field include all codes valid for a
                TYPE field, together with some more general codes which
                can match more than one type of RR.
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pub fn query_class(&self) -> DNSClass

QCLASS          a two octet code that specifies the class of the query.
                For example, the QCLASS field is IN for the Internet.
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pub fn mdns_unicast_response(&self) -> bool

Returns if the mDNS unicast-response bit is set or not See RFC 6762

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pub fn into_parts(self) -> QueryParts

Consumes Query and returns it’s components

Trait Implementations§

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impl<'r> BinDecodable<'r> for Query

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fn read(decoder: &mut BinDecoder<'r>) -> ProtoResult<Self>

Read the type from the stream
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fn from_bytes(bytes: &'r [u8]) -> ProtoResult<Self>

Returns the object in binary form
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impl BinEncodable for Query

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fn emit(&self, encoder: &mut BinEncoder<'_>) -> ProtoResult<()>

Write the type to the stream
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fn to_bytes(&self) -> ProtoResult<Vec<u8>>

Returns the object in binary form
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impl Clone for Query

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fn clone(&self) -> Query

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 Debug for Query

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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 Default for Query

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fn default() -> Self

Return a default query with an empty name and A, IN for the query_type and query_class

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impl Display for Query

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

Formats the value using the given formatter. Read more
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impl From<Query> for QueryParts

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fn from(q: Query) -> Self

Converts to this type from the input type.
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impl Hash for Query

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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 PartialEq<Query> for Query

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

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

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impl StructuralEq for Query

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impl StructuralPartialEq for Query

Auto Trait Implementations§

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impl RefUnwindSafe for Query

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impl Send for Query

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impl Sync for Query

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impl Unpin for Query

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impl UnwindSafe for Query

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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 Twhere 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<T> ToOwned for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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