File 0195-Fixed-dns-lookup-in-case-of-server-close-connection-.patch of Package erlang
From 53e83c1ee2c7d6a95512162b31f72ea2442a836e Mon Sep 17 00:00:00 2001
From: Kozlov Yakov <yk@exante.eu>
Date: Fri, 1 Sep 2017 11:27:31 +0300
Subject: [PATCH] Fixed dns lookup in case of server close connection with
econnrefused
---
lib/kernel/src/inet_res.erl | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/lib/kernel/src/inet_res.erl b/lib/kernel/src/inet_res.erl
index 90e49ddfdf..49aa5f8bda 100644
--- a/lib/kernel/src/inet_res.erl
+++ b/lib/kernel/src/inet_res.erl
@@ -859,15 +859,17 @@ query_ns(S0, Id, Buffer, IP, Port, Timer, Retry, I,
{ok,S} ->
Timeout =
inet:timeout( (Tm * (1 bsl I)) div Retry, Timer),
- {S,
case query_udp(
S, Id, Buffer, IP, Port, Timeout, Verbose) of
{ok,#dns_rec{header=H}} when H#dns_header.tc ->
TcpTimeout = inet:timeout(Tm*5, Timer),
- query_tcp(
- TcpTimeout, Id, Buffer, IP, Port, Verbose);
- Reply -> Reply
- end};
+ {S, query_tcp(
+ TcpTimeout, Id, Buffer, IP, Port, Verbose)};
+ {error, econnrefused} = Err ->
+ ok = udp_close(S),
+ {#sock{}, Err};
+ Reply -> {S, Reply}
+ end;
Error ->
{S0,Error}
end
--
2.14.1