From 246723a34ce5024e1d018cee4327dcce1bbd55c6 Mon Sep 17 00:00:00 2001
From: knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 15 Apr 2019 10:52:34 +0000
Subject: [PATCH] Support SNI (Reapplying r67488)

This fixes connecting using TLS 1.3 to imap.gmail.com

[Fix GH-2077] [Feature #15594]

From: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67563 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/net/imap.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/net/imap.rb b/lib/net/imap.rb
index fa9b19071a..1c7e89ba14 100644
--- a/lib/net/imap.rb
+++ b/lib/net/imap.rb
@@ -1530,6 +1530,7 @@ module Net
       end
       @sock = SSLSocket.new(@sock, context)
       @sock.sync_close = true
+      @sock.hostname = @host if @sock.respond_to? :hostname=
       ssl_socket_connect(@sock, @open_timeout)
       if context.verify_mode != VERIFY_NONE
         @sock.post_connection_check(@host)