title: What are all the illegal characters in the XFS filesystem?
body: <p>Could someone provide (or point me to a list) of all the illegal characters in the XFS filesystem? I'm writing an app that needs to sanitize filenames.</p>
  
  <p>EDIT:</p>
  
  <p>Okay, so POSIX filesystems should allow all characters except the NUL character, forward slash, and the '.' and '..' filenames are reserved. All other exceptions are application-level. Thanks!</p>