#ccall FSFileSecuritySetOwnerUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>
#ccall FSFileSecurityGetGroupUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>
#ccall FSFileSecuritySetGroupUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>
#ccall FSFileSecuritySetOwnerUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>
#ccall FSFileSecurityGetGroupUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>
#ccall FSFileSecuritySetGroupUUID , <FSFileSecurityRef> -> Ptr <CFUUIDBytes> -> IO <OSStatus>