1 /* 2 * unparse.c -- convert a UUID to string 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 <stdio.h> 36 37 #include "uuidP.h" 38 39 static const char *fmt_lower = 40 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x"; 41 42 static const char *fmt_upper = 43 "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X"; 44 45 #ifdef UUID_UNPARSE_DEFAULT_UPPER 46 #define FMT_DEFAULT fmt_upper 47 #else 48 #define FMT_DEFAULT fmt_lower 49 #endif 50 51 static void uuid_unparse_x(const uuid_t uu, char *out, const char *fmt) 52 { 53 struct uuid uuid; 54 55 uuid_unpack(uu, &uuid); 56 sprintf(out, fmt, 57 uuid.time_low, uuid.time_mid, uuid.time_hi_and_version, 58 uuid.clock_seq >> 8, uuid.clock_seq & 0xFF, 59 uuid.node[0], uuid.node[1], uuid.node[2], 60 uuid.node[3], uuid.node[4], uuid.node[5]); 61 } 62 63 void uuid_unparse_lower(const uuid_t uu, char *out) 64 { 65 uuid_unparse_x(uu, out, fmt_lower); 66 } 67 68 void uuid_unparse_upper(const uuid_t uu, char *out) 69 { 70 uuid_unparse_x(uu, out, fmt_upper); 71 } 72 73 void uuid_unparse(const uuid_t uu, char *out) 74 { 75 uuid_unparse_x(uu, out, FMT_DEFAULT); 76 } 77
