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