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-rw-r--r--erts/preloaded/src/socket.erl12
1 files changed, 9 insertions, 3 deletions
diff --git a/erts/preloaded/src/socket.erl b/erts/preloaded/src/socket.erl
index 95bd5ce094..3bc3c7dc28 100644
--- a/erts/preloaded/src/socket.erl
+++ b/erts/preloaded/src/socket.erl
@@ -659,7 +659,7 @@
%% -define(SOCKET_OPT_IPV6_ROUTER_ALERT, 27).
-define(SOCKET_OPT_IPV6_RTHDR, 28).
%% -define(SOCKET_OPT_IPV6_TCLASS, 29).
-%% -define(SOCKET_OPT_IPV6_UNICAST_HOPS, 30).
+-define(SOCKET_OPT_IPV6_UNICAST_HOPS, 30).
%% -define(SOCKET_OPT_IPV6_USE_MIN_MTU, 31).
-define(SOCKET_OPT_IPV6_V6ONLY, 32).
@@ -2300,6 +2300,12 @@ enc_setopt_value(ipv6, Opt, V, _D, _T, _P)
enc_setopt_value(ipv6, rthdr, V, _D, T, _P)
when is_boolean(V) andalso ((T =:= dgram) orelse (T =:= raw)) ->
V;
+enc_setopt_value(ipv6, unicast_hops, V, _D, _T, _P)
+ when (V =:= default) ->
+ -1;
+enc_setopt_value(ipv6, unicast_hops, V, _D, _T, _P)
+ when is_integer(V) andalso (V >= 0) andalso (V =< 255) ->
+ V;
enc_setopt_value(ipv6, v6only, V, _D, _T, _P) when is_boolean(V) ->
V;
enc_setopt_value(ipv6 = L, Opt, V, _D, _T, _P) ->
@@ -2750,8 +2756,8 @@ enc_sockopt_key(ipv6 = _L, rthdr = _Opt, _Dir, _D, T, _P)
?SOCKET_OPT_IPV6_RTHDR;
enc_sockopt_key(ipv6 = L, tclass = Opt, _Dir, _D, _T, _P) ->
not_supported({L, Opt});
-enc_sockopt_key(ipv6 = L, unicast_hops = Opt, _Dir, _D, _T, _P) ->
- not_supported({L, Opt});
+enc_sockopt_key(ipv6 = _L, unicast_hops = _Opt, _Dir, _D, _T, _P) ->
+ ?SOCKET_OPT_IPV6_UNICAST_HOPS;
enc_sockopt_key(ipv6 = L, use_min_mtu = Opt, _Dir, _D, _T, _P) ->
not_supported({L, Opt});
enc_sockopt_key(ipv6 = _L, v6only = _Opt, _Dir, _D, _T, _P) ->