[Bug 1569] New: Hostbased auth fails when using a proxy command

bugzilla-daemon at bugzilla.mindrot.org bugzilla-daemon at bugzilla.mindrot.org
Tue Mar 10 05:16:48 EST 2009


           Summary: Hostbased auth fails when using a proxy command
           Product: Portable OpenSSH
           Version: 5.2p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ssh
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: imorgan at nas.nasa.gov

Created an attachment (id=1612)
 --> (http://bugzilla.mindrot.org/attachment.cgi?id=1612)
Allow get_local_name() to handle a socket or pipe.

If hostbased authentication is enabled and a proxy command is used to 
connect to the server, the following warning messages typically

cannot get sockname for fd
ssh_keysign: no reply
key_sign failed

This is due to the assumption that the file descriptor passed to 
get_local_name() corresponds to a socket, which is not the case when a
proxy command is used.

The attached patch modifies get_local_name() sot that it falls back to
using gethostname() if get_socket_address() fails. As a result, some
redundant code in sshconnect2.c is removed. A typo is sshconnect2.c is
also fixed. ('no installed' vs 'not installed')

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