MongoDB - fix isMaster message length check. #166
Merged
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Updated message length to account for OP_REPLY header.
Also fixed off-by-one uint32 read buffer size, but I don't think that would have broken anything.
How to Test
Connect to host which responds to isMaster OP_QUERY with a reply which is longer than mongodb message header + 4 but less than that + OP_REPLY header.