00001 /* 00002 * unparse.c -- convert a UUID to string 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 <stdio.h> 00036 00037 #include "uuidP.h" 00038 00039 static const char *fmt_lower = 00040 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x"; 00041 00042 static const char *fmt_upper = 00043 "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X"; 00044 00045 #ifdef UUID_UNPARSE_DEFAULT_UPPER 00046 #define FMT_DEFAULT fmt_upper 00047 #else 00048 #define FMT_DEFAULT fmt_lower 00049 #endif 00050 00051 static void uuid_unparse_x(const uuid_t uu, char *out, const char *fmt) 00052 { 00053 struct uuid uuid; 00054 00055 uuid_unpack(uu, &uuid); 00056 sprintf(out, fmt, 00057 uuid.time_low, uuid.time_mid, uuid.time_hi_and_version, 00058 uuid.clock_seq >> 8, uuid.clock_seq & 0xFF, 00059 uuid.node[0], uuid.node[1], uuid.node[2], 00060 uuid.node[3], uuid.node[4], uuid.node[5]); 00061 } 00062 00063 void uuid_unparse_lower(const uuid_t uu, char *out) 00064 { 00065 uuid_unparse_x(uu, out, fmt_lower); 00066 } 00067 00068 void uuid_unparse_upper(const uuid_t uu, char *out) 00069 { 00070 uuid_unparse_x(uu, out, fmt_upper); 00071 } 00072 00073 void uuid_unparse(const uuid_t uu, char *out) 00074 { 00075 uuid_unparse_x(uu, out, FMT_DEFAULT); 00076 }