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Fix a bug that crash when protocol is undefined

This commit is contained in:
zhouzb 2019-08-23 17:29:48 +08:00
parent f26827a0b9
commit 5cfd8b74bc
1 changed files with 2 additions and 0 deletions
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2
src/emqx_protocol.erl
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@ -107,6 +107,8 @@ info(#protocol{proto_name = ProtoName,
info(proto_name, #protocol{proto_name = ProtoName}) -> info(proto_name, #protocol{proto_name = ProtoName}) ->
ProtoName; ProtoName;
info(proto_ver, undefined) ->
?MQTT_PROTO_V4;
info(proto_ver, #protocol{proto_ver = ProtoVer}) -> info(proto_ver, #protocol{proto_ver = ProtoVer}) ->
ProtoVer; ProtoVer;
info(clean_start, #protocol{clean_start = CleanStart}) -> info(clean_start, #protocol{clean_start = CleanStart}) ->