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https://issues.apache.org/jira/browse/NET-74?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sebb resolved NET-74.
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Resolution: Not A Problem
Note that the individual handlers have to deal with doubling any 255 bytes
themselves - TelnetClient only adds the IAC SB / IAC SE wrapper.
Only the WindowSize option handler can generate the byte 255, and it already
takes this into account.
Added a test case for the code.
> [net]Telnet option handlers subnegotiations does not handle 0xFF correctly
> --------------------------------------------------------------------------
>
> Key: NET-74
> URL: https://issues.apache.org/jira/browse/NET-74
> Project: Commons Net
> Issue Type: Bug
> Components: Telnet
> Environment: Operating System: other
> Platform: Other
> Reporter: Yuval Kashtan
> Priority: Minor
>
> in accordance to RFC855: "Finally, if parameters in an option "subnegotiation"
> include a byte with a value of 255, it is necessary to double this byte in
> accordance the general TELNET rules."
> I've actually encontered this while implementing WindowSize option handler,
> but
> it seems that all the currently avilable handlers are vulnerable to this.
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