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Shifting signed integers is undefined and only sometimes produced unexpected results. Was detected in packet identifiers in QoS testing.
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Also fixes not downgrading QoS on subscribe.
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https://github.com/halfgaar/FlashMQ/issues/2
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Unsubscribing paths that didn't exist caused creation of null nodes, which subsequent use of the tree crashed on.
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Found by quinox using AFL.
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Instead of getting it from the sender of a packet. Sometimes there was no sender. This fixes a crash on retained messages, because those newly created packets didn't have a sender to get the threaddata from. So, using a special object for it is easier and more robust.
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Encrypted version only.
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Profiling showed it was significant enough to do so.
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My IDE didn't understand them for finding symbols, apparently.
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For better IDE functionality, mostly.
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It needs to be fixed anyway, but I'm not 100% sure whether this was the cause of the crash on the demo server.
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Having threads creates instability for the fuzzer, and we don't need them.
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Fix websocket crash case Fix infinite loop on lying about websocket frame sizes This fixes infinite loops when you send a frame type that is not handled.