From d342c2c714498d33891fa285a3c9ae991dc34769 Mon Sep 17 00:00:00 2001
From: Tom Karwowski <to.karwowski@gmail.com>
Date: Mon, 7 Aug 2023 21:22:21 +0200
Subject: [PATCH] feat(server): add `Builder::local_addr()` (#3278)

---
 src/server/server.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/server/server.rs b/src/server/server.rs
index c90eac3e53..cd34bb7b4a 100644
--- a/src/server/server.rs
+++ b/src/server/server.rs
@@ -629,6 +629,14 @@ impl<E> Builder<AddrIncoming, E> {
         self.incoming.set_sleep_on_errors(val);
         self
     }
+
+    /// Returns the local address that the server will be bound to.
+    ///
+    /// This might be useful when knowing the address is required before calling `Builder::serve`,
+    /// but the address is not otherwise available (for e.g. when binding to port 0).
+    pub fn local_addr(&self) -> SocketAddr {
+        self.incoming.local_addr()
+    }
 }
 
 // Used by `Server` to optionally watch a `Connection` future.