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0117b7da68
We've been running into a lot of situations where virGetHostname() is returning "localhost", where a plain gethostname() would have returned the correct thing. This is because virGetHostname() is *always* trying to canonicalize the name returned from gethostname(), even when it doesn't have to. This patch changes virGetHostname so that if the value returned from gethostname() is already FQDN or localhost, it returns that string directly. If the value returned from gethostname() is a shortened hostname, then we try to canonicalize it. If that succeeds, we returned the canonicalized hostname. If that fails, and/or returns "localhost", then we just return the original string we got from gethostname() and hope for the best. Note that after this patch it is up to clients to check whether "localhost" is an allowed return value. The only place where it's currently not is in qemu migration. Signed-off-by: Chris Lalancette <clalance@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>