Flags

Struct Flags 

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pub struct Flags {
    pub qr: QueryResponse,
    pub opcode: OpCode,
    pub aa: AuthoritativeAnswer,
    pub tc: TrunCation,
    pub rd: RecursionDesired,
    pub ra: RecursionAvailable,
    pub z: Zero,
    pub ad: AuthenticData,
    pub cd: CheckingDisabled,
    pub rcode: ResponseCode,
}
Expand description

DNS Flags

    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
    |QR|   Opcode  |AA|TC|RD|RA| Z|AD|CD|   RCODE   |
    +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
QR: Query (0) or Response (1)
OPCODE: Standard query (0), Inverse query (1), Server status query (2), Notify (4), Update (5), DSO (6)
AA: Authoritative Answer
TC: TrunCation
RD: Recursion Desired
RA: Recursion Available
Z: Zero (reserved)
AD: Authentic data (for DNSSEC)
AD: Checking disabled (for DNSSEC)
RCODE: Response code NOERROR (0), FORMERR (1), SERVFAIL (2), NXDOMAIN (3), NOTIMP (4), REFUSED (5)

Fields§

§qr: QueryResponse

Query (0) or Response (1)

§opcode: OpCode

Standard query (0), Inverse query (1), Server status query (2), Notify (4), Update (5), DSO (6)

§aa: AuthoritativeAnswer

The answer is authoritative.

§tc: TrunCation

The packet has been truncated.

§rd: RecursionDesired

The client desires recursion.

§ra: RecursionAvailable

The server has recursion availbale.

§z: Zero

Reserved (has to be 0).

§ad: AuthenticData

Authentic data (for DNSSEC)

§cd: CheckingDisabled

Checking disabled (for DNSSEC)

§rcode: ResponseCode

Response code NOERROR (0), FORMERR (1), SERVFAIL (2), NXDOMAIN (3), NOTIMP (4), REFUSED (5)

Trait Implementations§

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impl Clone for Flags

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fn clone(&self) -> Flags

Returns a duplicate 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 Flags

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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 From<Flags> for u16

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fn from(flags: Flags) -> Self

Converts to this type from the input type.
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impl PartialEq for Flags

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fn eq(&self, other: &Flags) -> 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 TryFrom<u16> for Flags

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type Error = ParseError

The type returned in the event of a conversion error.
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fn try_from(n: u16) -> Result<Self, Self::Error>

Performs the conversion.
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impl Copy for Flags

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impl Eq for Flags

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impl StructuralPartialEq for Flags

Auto Trait Implementations§

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impl Freeze for Flags

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impl RefUnwindSafe for Flags

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impl Send for Flags

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impl Sync for Flags

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impl Unpin for Flags

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impl UnwindSafe for Flags

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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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
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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, 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, 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.