[Bug 2205] New: -S does hostname lookup although it is unused

[bugzilla-daemon at mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2205

            Bug ID: 2205
           Summary: -S does hostname lookup although it is unused
           Product: Portable OpenSSH
           Version: 6.5p1
          Hardware: amd64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: u.sibiller at science-computing.de

We have a shell script that is using multiplexing a lot where the
hostname is normally ignored. With 6.5p1 it stopped working. 

The call

ssh -S <controlpath> dummyhost

used to work but results in "ssh: Could not resolve hostname dummyhost:
Name or service not known" now.

I changed the code to

ssh -S <controlpath> 0.0.0.0 

and now it is working again.

Has this been changed on purpose?

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