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 #include <inttypes.h> 36 #include <sys/types.h> 37 38 #include "uuid.h" 39 40 /* 41 * Offset between 15-Oct-1582 and 1-Jan-70 42 */ 43 #define TIME_OFFSET_HIGH 0x01B21DD2 44 #define TIME_OFFSET_LOW 0x13814000 45 46 struct uuid { 47 uint32_t time_low; 48 uint16_t time_mid; 49 uint16_t time_hi_and_version; 50 uint16_t clock_seq; 51 uint8_t node[6]; 52 }; 53 54 55 /* 56 * prototypes 57 */ 58 void uuid_pack(const struct uuid *uu, uuid_t ptr); 59 void uuid_unpack(const uuid_t in, struct uuid *uu); 60