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From "Zhenliang Su (JIRA)" <>
Subject [jira] [Created] (NET-654) auto add a LF before a command
Date Mon, 29 Jan 2018 07:16:00 GMT
Zhenliang Su created NET-654:

             Summary: auto add a LF before a command
                 Key: NET-654
             Project: Commons Net
          Issue Type: Bug
          Components: Telnet
    Affects Versions: 3.6
         Environment: all environment 
            Reporter: Zhenliang Su

I use TelnetClient to connect to my H3C router. When I type the first command, it's ok. When
I type the second command, TelnetClient automatically add a LF character before my second
command, i.e. send an empty command before my second command.

I review the source code of, in function write(int ch). When I type
the first character of my second command, variable __lastWasCR is true, variable __convertCRtoCRLF
is true, and because I set nothing of TelnetOption.BINARY, __client._requestedWont(TelnetOption.BINARY)
also returns true。 lead to cause my issue.

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