From 42bdb501caf7039f71f3a26ae447db3bffaecb0a Mon Sep 17 00:00:00 2001
From: Holger Weiss <holger@zedat.fu-berlin.de>
Date: Sat, 18 Dec 2021 17:50:26 +0100
Subject: [PATCH] mod_stun_disco: Fix parsing of IPv6 listeners

Don't crash if `mod_stun_disco` is used with `offer_local_services`
and an IPv6 listener has an explicit `ip:` address configured.

Thanks to Daniel Kenzelmann for reporting the issue.
---
 src/mod_stun_disco.erl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mod_stun_disco.erl b/src/mod_stun_disco.erl
index 6e7592453..cbb671639 100644
--- a/src/mod_stun_disco.erl
+++ b/src/mod_stun_disco.erl
@@ -646,7 +646,7 @@ get_listener_ips(#{ip := {0, 0, 0, 0, 0, 0, 0, 1}} = Opts) ->
     {undefined, get_turn_ipv6_addr(Opts)};
 get_listener_ips(#{ip := {_, _, _, _} = IP}) ->
     {IP, undefined};
-get_listener_ips(#{ip := {_, _, _, _, _,_, _, _, _} = IP}) ->
+get_listener_ips(#{ip := {_, _, _, _, _, _, _, _} = IP}) ->
     {undefined, IP}.
 
 -spec get_turn_ipv4_addr(map()) -> inet:ip4_address() | undefined.