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fix arithmetic on a nil value error when subscribing to topic $SYS/broker/clients/connected #8

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fix arithmetic on a nil value error when subscribing to topic $SYS/broker/clients/connected #8

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f21b66d
fix arithmetic on a nil value when subscribing to clients/connected t…
rnlaigner Jun 5, 2019
d208965
remove tab in line
rnlaigner Jun 5, 2019
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3 changes: 2 additions & 1 deletion lua/mqtt_library.lua
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Original file line number Diff line number Diff line change
Expand Up @@ -578,7 +578,8 @@ function MQTT.client:parse_message_publish( -- Internal API

if (qos > 0) then
local message_id = string.byte(message, index) * 256
message_id = message_id + string.byte(message, index + 1)
local byte_ret = string.byte(message, index + 1)
if byte_ret ~= nil then message_id = message_id + byte_ret end
index = index + 2
end

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