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Code Issues Releases Wiki Activity

Check for valid nSender field on RedNet message receive (#1200)

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Alessandro Proto 2022-11-03 09:40:37 +01:00 committed by GitHub
parent 0f1f5247ca
commit c919011a7e
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src/main/resources/data/computercraft/lua/rom/apis/rednet.lua
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@ -463,6 +463,7 @@ function run()
if channel == id_as_channel() or channel == CHANNEL_BROADCAST then if channel == id_as_channel() or channel == CHANNEL_BROADCAST then
if type(message) == "table" and type(message.nMessageID) == "number" if type(message) == "table" and type(message.nMessageID) == "number"
and message.nMessageID == message.nMessageID and not received_messages[message.nMessageID] and message.nMessageID == message.nMessageID and not received_messages[message.nMessageID]
and (type(message.nSender) == "nil" or (type(message.nSender) == "number" and message.nSender == message.nSender))
and ((message.nRecipient and message.nRecipient == os.getComputerID()) or channel == CHANNEL_BROADCAST) and ((message.nRecipient and message.nRecipient == os.getComputerID()) or channel == CHANNEL_BROADCAST)
and isOpen(modem) and isOpen(modem)
then then