1/*
2 * Copyright (c) 2010-2013 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24/*
25 * HostUUID.c
26 * - get the host UUID
27 */
28
29/*
30 * Modification History
31 *
32 * April 11, 2013
33 * - created (split out from DHCPDUIDIAID.c)
34 */
35
36#include <unistd.h>
37#include "HostUUID.h"
38#include "symbol_scope.h"
39#include "cfutil.h"
40
41PRIVATE_EXTERN CFDataRef
42HostUUIDGet(void)
43{
44    STATIC CFMutableDataRef	host_UUID;
45    struct timespec		ts = { 0, 0 };
46
47    if (host_UUID != NULL) {
48	return (host_UUID);
49    }
50    host_UUID = CFDataCreateMutable(NULL, sizeof(uuid_t));
51    CFDataSetLength(host_UUID, sizeof(uuid_t));
52    if (gethostuuid(CFDataGetMutableBytePtr(host_UUID), &ts) != 0) {
53	my_CFRelease(&host_UUID);
54    }
55    return (host_UUID);
56}
57
58