Introduce a new net::server module

Cargo.toml

@@ -22,6 +22,8 @@ license = "BSD-3-Clause"
 [dependencies]
 domain-macros  = { path = "./macros", version = "0.10.3" }
 
+either = { version = "1.10.0", default-features = false }
+
 arbitrary      = { version = "1.4.1", optional = true, features = ["derive"] }
 octseq         = { version = "0.5.2", default-features = false }
 time           = { version = "0.3.1", default-features = false }
@@ -58,7 +60,7 @@ bytes       = ["dep:bytes", "octseq/bytes"]
 heapless    = ["dep:heapless", "octseq/heapless"]
 serde       = ["dep:serde", "octseq/serde"]
 smallvec    = ["dep:smallvec", "octseq/smallvec"]
-std         = ["dep:hashbrown", "bytes?/std", "octseq/std", "time/std"]
+std         = ["dep:hashbrown", "either/use_std", "bytes?/std", "octseq/std", "time/std"]
 tracing     = ["dep:log", "dep:tracing"]
 
 # Cryptographic backends

src/lib.rs

@@ -212,4 +212,5 @@ pub mod zonetree;
 
 pub mod new_base;
 pub mod new_edns;
+pub mod new_net;
 pub mod new_rdata;

src/new_base/question.rs

@@ -59,6 +59,7 @@ where
 
 impl<'a, N> ParseMessageBytes<'a> for Question<N>
 where
+    // TODO: Reduce to 'ParseMessageBytes'.
     N: SplitMessageBytes<'a>,
 {
     fn parse_message_bytes(

src/new_net/mod.rs

@@ -0,0 +1,6 @@
+//! Sending and receiving DNS messages.
+
+#![cfg(feature = "net")]
+#![cfg_attr(docsrs, doc(cfg(feature = "net")))]
+
+pub mod server;