pub fn getxattr_query<P: Arg, Name: Arg>(path: P, name: Name) -> Result<usize>Expand description
getxattr(path, name, NULL, 0)—Query the length of an extended filesystem
attribute.
This function uses getxattr with no buffer to just return the size of
the attribute. This can be used to determine the size of a buffer to
allocate for a subsequent call to getxattr, however keep in mind
that other processes may modify attributes at any time.