1 /* vi: set sw=4 ts=4: */
2 /*
3 * unparse.c -- convert a UUID to string
4 *
5 * Copyright (C) 1996, 1997 Theodore Ts'o.
6 *
7 * %Begin-Header%
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, and the entire permission notice in its entirety,
13 * including the disclaimer of warranties.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote
18 * products derived from this software without specific prior
19 * written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
24 * WHICH ARE HEREBY DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
31 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
32 * DAMAGE.
33 * %End-Header%
34 */
35
36 #include <stdio.h>
37
38 #include "uuidP.h"
39
40 static const char *fmt_lower =
41 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x";
42
43 static const char *fmt_upper =
44 "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X";
45
46 #ifdef UUID_UNPARSE_DEFAULT_UPPER
47 #define FMT_DEFAULT fmt_upper
48 #else
49 #define FMT_DEFAULT fmt_lower
50 #endif
51
uuid_unparse_x(const uuid_t uu,char * out,const char * fmt)52 static void uuid_unparse_x(const uuid_t uu, char *out, const char *fmt)
53 {
54 struct uuid uuid;
55
56 uuid_unpack(uu, &uuid);
57 sprintf(out, fmt,
58 uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,
59 uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
60 uuid.node[0], uuid.node[1], uuid.node[2],
61 uuid.node[3], uuid.node[4], uuid.node[5]);
62 }
63
uuid_unparse_lower(const uuid_t uu,char * out)64 void uuid_unparse_lower(const uuid_t uu, char *out)
65 {
66 uuid_unparse_x(uu, out, fmt_lower);
67 }
68
uuid_unparse_upper(const uuid_t uu,char * out)69 void uuid_unparse_upper(const uuid_t uu, char *out)
70 {
71 uuid_unparse_x(uu, out, fmt_upper);
72 }
73
uuid_unparse(const uuid_t uu,char * out)74 void uuid_unparse(const uuid_t uu, char *out)
75 {
76 uuid_unparse_x(uu, out, FMT_DEFAULT);
77 }
78