uuid/uuidsrc/uuidP.h

   1 /*
   2  * uuid.h -- private header file for uuids
   3  *
   4  * Copyright (C) 1996, 1997 Theodore Ts'o.
   5  *
   6  * %Begin-Header%
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, and the entire permission notice in its entirety,
  12  *    including the disclaimer of warranties.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  21  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
  23  * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  27  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
  30  * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
  31  * DAMAGE.
  32  * %End-Header%
  33  */
  34
  35 #ifdef HAVE_STDINT_H
  36 #include <stdint.h>
  37 #else
  38 #include <uuid/uuid_types.h>
  39 #endif
  40 #include <sys/types.h>
  41 #include <sys/time.h>
  42 #include <time.h>
  43
  44 #include "uuid.h"
  45
  46 /*
  47  * Offset between 15-Oct-1582 and 1-Jan-70
  48  */
  49 #define TIME_OFFSET_HIGH 0x01B21DD2
  50 #define TIME_OFFSET_LOW  0x13814000
  51
  52 struct uuid {
  53         uint32_t        time_low;
  54         uint16_t        time_mid;
  55         uint16_t        time_hi_and_version;
  56         uint16_t        clock_seq;
  57         uint8_t node[6];
  58 };
  59
  60 /* UUID Variant definitions */
  61 #define UUID_VARIANT_NCS        0
  62 #define UUID_VARIANT_DCE        1
  63 #define UUID_VARIANT_MICROSOFT  2
  64 #define UUID_VARIANT_OTHER      3
  65
  66 /* UUID Type definitions */
  67 #define UUID_TYPE_DCE_TIME   1
  68 #define UUID_TYPE_DCE_RANDOM 4
  69
  70 /*
  71  * prototypes
  72  */
  73 void uuid_pack(const struct uuid *uu, uuid_t ptr);
  74 void uuid_unpack(const uuid_t in, struct uuid *uu);
  75
  76 time_t uuid_time(const uuid_t uu, struct timeval *ret_tv);
  77 int uuid_type(const uuid_t uu);
  78 int uuid_variant(const uuid_t uu);