tftp client limited to ~32 MB file sizes
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Key: NET-181
URL: https://issues.apache.org/jira/browse/NET-181
Project: Commons Net
Issue Type: Improvement
Environment: All
Reporter: Dan Armbrust
Priority: Minor
I just noticed that the TFTPClient class does not support a block wraparound -
hence, when the block number exceeds the max allowed by the rfc (65535) - about
a 32 mb file - bad things will happen.
I can't find any rfc that specifies how the wraparound is supposed to occur,
but this wiki page mentions it:
http://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol
And I am working on implementing a TFTPServer - and in my tests with the tftp
client that is shipped with fedora, I have determined that that tftp client
expects the next block number after 65535 to be 0.
So it appears that the TFTPClient should wrap its block number so that it
properly supports larger files.
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