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From "Zhenliang Su (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (NET-654) auto add a LF before a command
Date Mon, 05 Feb 2018 02:24:00 GMT

     [ https://issues.apache.org/jira/browse/NET-654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhenliang Su updated NET-654:
-----------------------------
    Attachment: Main.java

> auto add a LF before a command
> ------------------------------
>
>                 Key: NET-654
>                 URL: https://issues.apache.org/jira/browse/NET-654
>             Project: Commons Net
>          Issue Type: Bug
>          Components: Telnet
>    Affects Versions: 3.6
>         Environment: all environment 
>            Reporter: Zhenliang Su
>            Priority: Minor
>         Attachments: Main.java, telnetClient.pcap
>
>
> 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 TelnetOutputStream.java, 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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