[Bug 1137] ssh does not always return code 255 when in error

[bugzilla-daemon at mindrot.org]

http://bugzilla.mindrot.org/show_bug.cgi?id=1137

           Summary: ssh does not always return code 255 when in error
           Product: Portable OpenSSH
           Version: 4.2p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ssh
        AssignedTo: bitbucket at mindrot.org
        ReportedBy: ombugr at mayoxide.com


The ssh client does not always return exit code 255 when it a client error
occurs, as it is documented in the man page. For example, a refused or timed
out connection returns exit code 1, while a unknown hostname returns 255. This
makes automating tasks using ssh tricky, as I can't be sure if the exit code
comes from the remote command or the client when there is a connection problem.

About 6 months ago, someone posted a report on the mailing list detailing the
exact same problem, see: 
http://marc.theaimsgroup.com/?l=openssh-unix-dev&m=111754196015597&w=2

I wondered if it could be possible to correct this in the client in the future.
If the behaviour is normal, then the man page should then be updated, as
currently this is ambiguous.

Thanks




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