[Bug 1545] New: ssh-keygen -R removes all comments from known_hosts file

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1545

           Summary: ssh-keygen -R removes all comments from known_hosts
                    file
           Product: Portable OpenSSH
           Version: 5.1p1
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ssh-keygen
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: ssh-bugzilla at finestructure.net


ssh-keygen -R is currently removing *all* comments from the known_hosts
file it's processing.  Below is an example of ssh-keygen -R being run
on a test known_host file.  An attachment is included that demonstrates
the problem in action.

Notice that the first invocation is to remove example1.server.net from
the
file, but the comment on example2.server.net is removed in the
process as well.  The same problem occurs when nothing no host is
removed from the file at all.

In both cases an attempt was made to remove a host *other* than
example2.server.net, but the net result was that *all* comments where
removed from the file.

Thanks for the help.

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