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59e0d9fe A |
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 | } |