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Posted to issues@commons.apache.org by "Sebb (JIRA)" <ji...@apache.org> on 2018/02/03 10:01:00 UTC

[jira] [Commented] (NET-654) auto add a LF before a command

    [ https://issues.apache.org/jira/browse/NET-654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16351352#comment-16351352 ] 

Sebb commented on NET-654:
--------------------------

What OS are you using?
What code did you use to start the client?

Please also see
http://www.freesoft.org/CIE/RFC/1123/31.htm

AFAICT the NET code is behaving correctly; you may have to set binary mode if the server on the H3C box cannot handle CRLF correctly.

> 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
>
> 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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