| bigbiff | 7b4c7a6 | 2015-01-01 19:44:14 -0500 | [diff] [blame] | 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 | } |