From 1397ff81c1fbb17cb00c1e32f0f6b8e214f93edb Mon Sep 17 00:00:00 2001
From: Russ Garrett <russ@garrett.co.uk>
Date: Thu, 25 Nov 2021 13:44:44 +0000
Subject: [PATCH] Fix TLS server name validation

---
 irc.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/irc.go b/irc.go
index c261a80..bb67b34 100644
--- a/irc.go
+++ b/irc.go
@@ -36,7 +36,11 @@ func (i *IRCCat) connectIRC(debug bool) error {
 
 	if viper.GetBool("irc.tls_skip_verify") {
 		irccon.TLSConfig = &tls.Config{InsecureSkipVerify: true}
+	} else {
+		server_parts := strings.Split(viper.GetString("irc.server"), ":")
+		irccon.TLSConfig = &tls.Config{ServerName: server_parts[0]}
 	}
+
 	if err := addClientCert(irccon); err != nil {
 		return err
 	}