Merge pull request #86 from rmja/dns-ref

Implement Dns for &T where T: Dns

Author: ryan-summers

embedded-nal-async/CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+- Let `&T` for `T: Dns` implement `Dns`
+
 ## [0.4.0] - 2023-01-27
 
 - Add traits for UDP

embedded-nal-async/src/dns.rs

@@ -32,3 +32,19 @@ pub trait Dns {
 	/// [`rfc1035`]: https://tools.ietf.org/html/rfc1035
 	async fn get_host_by_address(&self, addr: IpAddr) -> Result<String<256>, Self::Error>;
 }
+
+impl<T: Dns> Dns for &T {
+	type Error = T::Error;
+
+	async fn get_host_by_name(
+		&self,
+		host: &str,
+		addr_type: AddrType,
+	) -> Result<IpAddr, Self::Error> {
+		T::get_host_by_name(self, host, addr_type).await
+	}
+
+	async fn get_host_by_address(&self, addr: IpAddr) -> Result<String<256>, Self::Error> {
+		T::get_host_by_address(self, addr).await
+	}
+}