feat(api): quicer:negotiated_protocol/1

emqx · Jul 2, 2023 · a33ee7c · a33ee7c
1 parent 236f427
commit a33ee7c
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diff --git a/src/quicer.erl b/src/quicer.erl
@@ -78,6 +78,7 @@
  , setopt/4
  , get_stream_id/1
  , getstat/2
+ , negotiated_protocol/1
  , peername/1
  , listeners/0
  , listener/1
@@ -817,6 +818,11 @@ getstat(Conn, Cnts) ->
  {ok, CntRes}
  end.
 
+%% @doc Returns the protocol negotiated through ALPN or NPN extensions.
+-spec negotiated_protocol(Conn::connection_handle()) -> {ok, Protocol::binary()} | {error, Reason::any()}.
+negotiated_protocol(Conn) ->
+ quicer:getopt(Conn, param_tls_negotiated_alpn, quic_tls).
+
 %% @doc Peer name
 %% mimic {@link ssl:peername/1}
 -spec peername(connection_handle() | stream_handle()) ->

diff --git a/test/quicer_SUITE.erl b/test/quicer_SUITE.erl
@@ -1844,6 +1844,7 @@ tc_alpn(Config) ->
  {ok, Conn} = quicer:connect("localhost", Port, default_conn_opts(), 5000),
  {ok, {_, _}} = quicer:sockname(Conn),
  {ok, <<"sample">>} = quicer:getopt(Conn, param_tls_negotiated_alpn, quic_tls),
+ {ok, <<"sample">>} = quicer:negotiated_protocol(Conn),
  ok = quicer:close_connection(Conn),
  SPid ! done
  after 1000 ->