00001 /* 00002 * Internal routine for unpacking UUID 00003 * 00004 * Copyright (C) 1996, 1997 Theodore Ts'o. 00005 * 00006 * %Begin-Header% 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 1. Redistributions of source code must retain the above copyright 00011 * notice, and the entire permission notice in its entirety, 00012 * including the disclaimer of warranties. 00013 * 2. Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 * 3. The name of the author may not be used to endorse or promote 00017 * products derived from this software without specific prior 00018 * written permission. 00019 * 00020 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 00021 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00022 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF 00023 * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE 00024 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00025 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 00027 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00029 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 00030 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH 00031 * DAMAGE. 00032 * %End-Header% 00033 */ 00034 00035 #include <string.h> 00036 #include "uuidP.h" 00037 00038 void uuid_unpack(const uuid_t in, struct uuid *uu) 00039 { 00040 const uint8_t *ptr = in; 00041 uint32_t tmp; 00042 00043 tmp = *ptr++; 00044 tmp = (tmp << 8) | *ptr++; 00045 tmp = (tmp << 8) | *ptr++; 00046 tmp = (tmp << 8) | *ptr++; 00047 uu->time_low = tmp; 00048 00049 tmp = *ptr++; 00050 tmp = (tmp << 8) | *ptr++; 00051 uu->time_mid = tmp; 00052 00053 tmp = *ptr++; 00054 tmp = (tmp << 8) | *ptr++; 00055 uu->time_hi_and_version = tmp; 00056 00057 tmp = *ptr++; 00058 tmp = (tmp << 8) | *ptr++; 00059 uu->clock_seq = tmp; 00060 00061 memcpy(uu->node, ptr, 6); 00062 } 00063