n = num_tokens(dav_pathname, '/');
extract_token(dav_uid, dav_pathname, n-1, '/', sizeof dav_uid);
remove_token(dav_pathname, n-1, '/');
n = num_tokens(dav_pathname, '/');
extract_token(dav_uid, dav_pathname, n-1, '/', sizeof dav_uid);
remove_token(dav_pathname, n-1, '/');