An earlier patch enabled updating a file proper id without changing
the other id (birth, volume, domain). However the first time the id
is set, these other ids have to be zeroed.
Object ids can be used to locate files which have been move to another
volume. This is only possible when the birth ids are recorded, but in most
cases files reside on their birth volume and their birth ids are not set.
The patch enables setting a file id without changing its birth id, by
setting an extended attribute "system.ntfs_object_id" limited to 16
bytes.
A number of functions in libntfs-3g are generally useful, but are tied to
extended attributes support and are not included when the library is
built on platforms without extended attributes support.
This proposal updates libntfs-3g to always include these functions.
The only tricky part is dealing with the XATTR_CREATE and XATTR_REPLACE
flags. These flags are defined in <sys/xattr.h>, so they must be
redefined on platforms without extended attributes support.
Signed-off-by: Eric Biggers <ebiggers3@gmail.com>
Jean-Pierre André
Jean-Pierre André
jpandre