[Bug 2242] New: add DisableBanner option to the ssh client command

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2242

            Bug ID: 2242
           Summary: add DisableBanner option to the ssh client command
           Product: Portable OpenSSH
           Version: 6.6p1
          Hardware: Sparc
                OS: Solaris
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: huieying.lee at oracle.com

Created attachment 2437
  --> https://bugzilla.mindrot.org/attachment.cgi?id=2437&action=edit
code changes for the disablebanner option

In the client part of section 5.4 (Banner message) in RFE 4252 (SSH 
authentication Protocol), it states that 

  "By Default, the client Should display the 'message" on the screen. 
  However, since the 'message' is likely to be sent for every login
  attempt, and sinced some client software will need to open a separate
  window for this warning, the client software may allow the user to
  explicitly disable the display of banners from the server."

Currently, this client part of the implementation does not exist in the
OpenSSH code.  We have implemented a client's DisableBanner feature for 
Solaris and would like to contribute back our implementation.   

    DisableBanner
        If set to yes, disables  the  display  of  the   banner
        message.   If set to in-exec-mode, disables the display
        of banner message when in remote command mode only.

        The default value is no, which means that the banner is
        displayed  unless  the  log level  is  QUIET, FATAL, or
        ERROR. See also the Banner  option  in  sshd_config(8).
        This option applies to protocol version 2 only.

Attached is our implementation patch, which was applied to
OpenSSH6.5p1.

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