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Topic Names length limit to 200 #1441

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ckrey opened this issue Oct 2, 2019 · 2 comments

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@ckrey
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@ckrey ckrey commented Oct 2, 2019

dceeb6f

The changes to src/subs.c effectively limit the length of a Topic Name to 200, not just the
number of hierarchy levels as intended.

$ mosquitto_pub -m 'topic too long' -d -q 2 -t '123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789'
Client mosq-T8zmW8VvLMUGMhpTjZ sending CONNECT
Client mosq-T8zmW8VvLMUGMhpTjZ received CONNACK (0)
Client mosq-T8zmW8VvLMUGMhpTjZ sending PUBLISH (d0, q2, r0, m1, '123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789/123456789', ... (14 bytes))
Client mosq-T8zmW8VvLMUGMhpTjZ received PUBREC (Mid: 1)
Client mosq-T8zmW8VvLMUGMhpTjZ sending PUBREL (m1)
Error: The connection was lost.
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@ralight ralight commented Oct 2, 2019

Thanks Christoph, that's now fixed in the fixes branch.

@ckrey

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@ckrey ckrey commented Oct 2, 2019

Thanks Roger for the quick fix. Tested and confirmed

@ralight ralight closed this in c471dfb Dec 3, 2019
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