Update the list of allowed transport options

We are now up to date with regard to transport options we should
accept for the listening socket. Documentation of existing options
has been updated with regard to recent changes in the OTP docs
and type specifications.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/ranch.erl b/src/ranch.erl
index fc9bad3..3fbb9a2 100644
--- a/src/ranch.erl
+++ b/src/ranch.erl
@@ -131,11 +131,17 @@ filter_options(UserOptions, AllowedKeys, DefaultOptions) ->
 	AllowedOptions = filter_user_options(UserOptions, AllowedKeys),
 	lists:foldl(fun merge_options/2, DefaultOptions, AllowedOptions).
 
+%% 2-tuple options.
 filter_user_options([Opt = {Key, _}|Tail], AllowedKeys) ->
 	case lists:member(Key, AllowedKeys) of
 		true -> [Opt|filter_user_options(Tail, AllowedKeys)];
 		false -> filter_user_options(Tail, AllowedKeys)
 	end;
+%% Special option forms.
+filter_user_options([inet|Tail], AllowedKeys) ->
+	[inet|filter_user_options(Tail, AllowedKeys)];
+filter_user_options([inet6|Tail], AllowedKeys) ->
+	[inet6|filter_user_options(Tail, AllowedKeys)];
 filter_user_options([Opt = {raw, _, _, _}|Tail], AllowedKeys) ->
 	case lists:member(raw, AllowedKeys) of
 		true -> [Opt|filter_user_options(Tail, AllowedKeys)];