Bug by design in getfsfile(3) / needed sanity check for mountpoints

[Garrett Cooper]

Ok.... it appears I wasn't intelligent enough to post this in the  
right place last night. Comments please?

> Hi hackers,
>      I have a question, pending a bug found in getfsfile(3) [1].
>      Is there any possibility where a mountpoint be any value other
> than a directory, a symlink, or "none", i.e. a flat file?
> Thanks,
> -Garrett
>
> References:
> http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/124409 (not fully in PR
> database yet).