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-rw-r--r--erts/preloaded/src/socket.erl9
1 files changed, 6 insertions, 3 deletions
diff --git a/erts/preloaded/src/socket.erl b/erts/preloaded/src/socket.erl
index f243559ceb..997a4ac225 100644
--- a/erts/preloaded/src/socket.erl
+++ b/erts/preloaded/src/socket.erl
@@ -510,7 +510,7 @@
%% -define(SOCKET_OPT_IP_MTU, 11).
%% -define(SOCKET_OPT_IP_MTU_DISCOVER, 12).
%% -define(SOCKET_OPT_IP_MULTICAST_ALL, 13).
-%% -define(SOCKET_OPT_IP_MULTICAST_IF, 14).
+-define(SOCKET_OPT_IP_MULTICAST_IF, 14).
-define(SOCKET_OPT_IP_MULTICAST_LOOP, 15).
-define(SOCKET_OPT_IP_MULTICAST_TTL, 16).
%% -define(SOCKET_OPT_IP_NODEFRAG, 17).
@@ -1955,6 +1955,9 @@ enc_setopt_value(socket, sndbuf, V, _D, _T, _P) when is_integer(V) ->
enc_setopt_value(socket = L, Opt, V, _D, _T, _P) ->
not_supported({L, Opt, V});
+enc_setopt_value(ip, multicast_if, V, _D, _T, _P)
+ when (V =:= any) orelse (is_tuple(V) andalso (size(V) =:= 4)) ->
+ V;
enc_setopt_value(ip, multicast_loop, V, _D, _T, _P)
when is_boolean(V) ->
V;
@@ -2251,8 +2254,8 @@ enc_sockopt_key(ip = L, mtu_discover = Opt, _Dir, _D, _T, _P) ->
not_supported({L, Opt});
enc_sockopt_key(ip = L, multicast_all = Opt, _Dir, _D, _T, _P) ->
not_supported({L, Opt});
-enc_sockopt_key(ip = L, multicast_if = Opt, _Dir, _D, _T, _P) ->
- not_supported({L, Opt});
+enc_sockopt_key(ip = _L, multicast_if = _Opt, _Dir, _D, _T, _P) ->
+ ?SOCKET_OPT_IP_MULTICAST_IF;
enc_sockopt_key(ip = _L, multicast_loop = _Opt, _Dir, _D, _T, _P) ->
?SOCKET_OPT_IP_MULTICAST_LOOP;
enc_sockopt_key(ip = _L, multicast_ttl = _Opt, _Dir, _D, _T, _P) ->