2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 /* IRIX interpretation of an uuid_t */
30 * uuid_getnodeuniq - obtain the node unique fields of a UUID.
32 * This is not in any way a standard or condoned UUID function;
33 * it just something that's needed for user-level file handles.
36 uuid_getnodeuniq(uuid_t
*uuid
, int fsid
[2])
38 xfs_uu_t
*uup
= (xfs_uu_t
*)uuid
;
40 fsid
[0] = (be16_to_cpu(uup
->uu_clockseq
) << 16) |
41 be16_to_cpu(uup
->uu_timemid
);
42 fsid
[1] = be32_to_cpu(uup
->uu_timelow
);
46 uuid_is_nil(uuid_t
*uuid
)
49 char *cp
= (char *)uuid
;
53 /* implied check of version number here... */
54 for (i
= 0; i
< sizeof *uuid
; i
++)
55 if (*cp
++) return 0; /* not nil */
56 return 1; /* is nil */
60 uuid_equal(uuid_t
*uuid1
, uuid_t
*uuid2
)
62 return memcmp(uuid1
, uuid2
, sizeof(uuid_t
)) ? 0 : 1;
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