Struct trust_dns_proto::rr::rdata::txt::TXT

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

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

3.3.14. TXT RDATA format

    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    /                   TXT-DATA                    /
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+


TXT RRs are used to hold descriptive text.  The semantics of the text
depends on the domain where it is found.

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impl TXT

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pub fn new(txt_data: Vec<String>) -> Self

Creates a new TXT record data.

§Arguments
  • txt_data - the set of strings which make up the txt_data.
§Return value

The new TXT record data.

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pub fn from_bytes(txt_data: Vec<&[u8]>) -> Self

Creates a new TXT record data from bytes. Allows creating binary record data.

§Arguments
  • txt_data - the set of bytes which make up the txt_data.
§Return value

The new TXT record data.

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pub fn txt_data(&self) -> &[Box<[u8]>]

TXT-DATA        One or more <character-string>s.
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pub fn iter(&self) -> Iter<'_, Box<[u8]>>

Returns an iterator over the arrays in the txt data

Trait Implementations§

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impl BinEncodable for TXT

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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 TXT

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fn clone(&self) -> TXT

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 TXT

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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 Display for TXT

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

Format a TXT with lossy conversion of invalid utf8.

§Case of invalid utf8

Invalid utf8 will be converted to: U+FFFD REPLACEMENT CHARACTER, which looks like this: �

Same behaviour as alloc::string::String::from_utf8_lossy.

let first_bytes = b"Invalid utf8 <\xF0\x90\x80>.";
let second_bytes = b" Valid utf8 <\xF0\x9F\xA4\xA3>";
let rdata: Vec<&[u8]> = vec![first_bytes, second_bytes];
let txt = TXT::from_bytes(rdata);

let tested = format!("{}", txt);
assert_eq!(
    tested.as_bytes(),
    b"Invalid utf8 <\xEF\xBF\xBD>. Valid utf8 <\xF0\x9F\xA4\xA3>",
    "Utf8 lossy conversion error! Mismatch between input and expected"
);
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impl Hash for TXT

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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 for TXT

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fn eq(&self, other: &TXT) -> 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 RecordData for TXT

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fn try_from_rdata(data: RData) -> Result<Self, RData>

Attempts to convert to this RecordData from the RData type, if it is not the correct type the original is returned
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fn try_borrow(data: &RData) -> Option<&Self>

Attempts to borrow this RecordData from the RData type, if it is not the correct type the original is returned
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fn record_type(&self) -> RecordType

Get the associated RecordType for the RecordData
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fn into_rdata(self) -> RData

Converts this RecordData into generic RecordData
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impl Eq for TXT

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impl StructuralPartialEq for TXT

Auto Trait Implementations§

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impl Freeze for TXT

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impl RefUnwindSafe for TXT

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impl Send for TXT

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impl Sync for TXT

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impl Unpin for TXT

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impl UnwindSafe for TXT

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> 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<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