1 /* 2 * Internal routine for packing UUID's 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 "config.h" 36 #include <string.h> 37 #include "uuidP.h" 38 39 void uuid_pack(const struct uuid *uu, uuid_t ptr) 40 { 41 uint32_t tmp; 42 unsigned char *out = ptr; 43 44 tmp = uu->time_low; 45 out[3] = (unsigned char) tmp; 46 tmp >>= 8; 47 out[2] = (unsigned char) tmp; 48 tmp >>= 8; 49 out[1] = (unsigned char) tmp; 50 tmp >>= 8; 51 out[0] = (unsigned char) tmp; 52 53 tmp = uu->time_mid; 54 out[5] = (unsigned char) tmp; 55 tmp >>= 8; 56 out[4] = (unsigned char) tmp; 57 58 tmp = uu->time_hi_and_version; 59 out[7] = (unsigned char) tmp; 60 tmp >>= 8; 61 out[6] = (unsigned char) tmp; 62 63 tmp = uu->clock_seq; 64 out[9] = (unsigned char) tmp; 65 tmp >>= 8; 66 out[8] = (unsigned char) tmp; 67 68 memcpy(out+10, uu->node, 6); 69 } 70 