From 4a2416fe5eb8d4bdcee3c8ef50832af456597a27 Mon Sep 17 00:00:00 2001
From: cheatfate <eugene.kabanov@status.im>
Date: Tue, 28 Jan 2020 15:46:57 +0200
Subject: [PATCH] Allow to setup datagram servers with 0 port.

---
 chronos/transports/datagram.nim | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/chronos/transports/datagram.nim b/chronos/transports/datagram.nim
index 373fcd1..0cc4ae5 100644
--- a/chronos/transports/datagram.nim
+++ b/chronos/transports/datagram.nim
@@ -536,7 +536,7 @@ else:
             closeSocket(localSock)
           raiseTransportOsError(err)
 
-    if local.port != Port(0):
+    if local.family != AddressFamily.None:
       var saddr: Sockaddr_storage
       var slen: SockLen
       toSAddr(local, saddr, slen)
@@ -546,7 +546,6 @@ else:
         if sock == asyncInvalidSocket:
           closeSocket(localSock)
         raiseTransportOsError(err)
-      result.local = local
 
     if remote.port != Port(0):
       var saddr: Sockaddr_storage