blob: d2948fe6dcebe38812070bdb643dc4f2a60cb0bf
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 | |
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 | |
64 | void uuid_unparse_lower(const uuid_t uu, char *out) |
65 | { |
66 | uuid_unparse_x(uu, out, fmt_lower); |
67 | } |
68 | |
69 | void uuid_unparse_upper(const uuid_t uu, char *out) |
70 | { |
71 | uuid_unparse_x(uu, out, fmt_upper); |
72 | } |
73 | |
74 | void uuid_unparse(const uuid_t uu, char *out) |
75 | { |
76 | uuid_unparse_x(uu, out, FMT_DEFAULT); |
77 | } |
78 |