Trait hickory_proto::xfer::dns_handle::DnsHandle

pub trait DnsHandle:
    'static
    + Clone
    + Send
    + Sync
    + Unpin {
    type Response: Stream<Item = Result<DnsResponse, ProtoError>> + Send + Unpin + 'static;

    // Required method
    fn send<R: Into<DnsRequest> + Unpin + Send + 'static>(
        &self,
        request: R,
    ) -> Self::Response;

    // Provided methods
    fn is_verifying_dnssec(&self) -> bool { ... }
    fn is_using_edns(&self) -> bool { ... }
    fn lookup(&self, query: Query, options: DnsRequestOptions) -> Self::Response { ... }
}

A trait for implementing high level functions of DNS.

Required Associated Types

type Response: Stream<Item = Result<DnsResponse, ProtoError>> + Send + Unpin + 'static

The associated response from the response stream, this should resolve to the Response messages

Required Methods

fn send<R: Into<DnsRequest> + Unpin + Send + 'static>( &self, request: R, ) -> Self::Response

Send a message via the channel in the client

Arguments

• request - the fully constructed Message to send, note that most implementations of will most likely be required to rewrite the QueryId, do no rely on that as being stable.

Provided Methods

fn is_verifying_dnssec(&self) -> bool

Only returns true if and only if this DNS handle is validating DNSSEC.

If the DnsHandle impl is wrapping other clients, then the correct option is to delegate the question to the wrapped client.

fn is_using_edns(&self) -> bool

Allow for disabling EDNS

fn lookup(&self, query: Query, options: DnsRequestOptions) -> Self::Response

A classic DNS query

This is identical to query, but instead takes a Query object.

Arguments

• query - the query to lookup
• options - options to use when constructing the message

Object Safety

This trait is not object safe.

Implementors

impl DnsHandle for BufDnsRequestStreamHandle

type Response = DnsResponseReceiver

impl DnsHandle for DnsExchange

type Response = DnsExchangeSend

impl<H> DnsHandle for DnssecDnsHandle<H>

where H: DnsHandle + Sync + Unpin,

Available on crate feature dnssec only.

type Response = Pin<Box<dyn Stream<Item = Result<DnsResponse, ProtoError>> + Send>>

impl<H> DnsHandle for RetryDnsHandle<H>

where H: DnsHandle + Send + Unpin + 'static,

type Response = Pin<Box<dyn Stream<Item = Result<DnsResponse, ProtoError>> + Send + Unpin>>