1/*
2* Copyright (C) 2010 Google Inc. All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions are
6* met:
7*
8* * Redistributions of source code must retain the above copyright
9* notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "UUID.h"
33
34#include "NotImplemented.h"
35
36#if OS(WINDOWS)
37#include <objbase.h>
38#elif OS(DARWIN)
39#include <CoreFoundation/CoreFoundation.h>
40#elif OS(LINUX)
41#include <stdio.h>
42#endif
43
44namespace WebCore {
45
46String createCanonicalUUIDString()
47{
48#if OS(WINDOWS)
49 GUID uuid = { 0 };
50 HRESULT hr = CoCreateGuid(&uuid);
51 if (FAILED(hr))
52 return String();
53 wchar_t uuidStr[40];
54 int num = StringFromGUID2(uuid, reinterpret_cast<LPOLESTR>(uuidStr), ARRAYSIZE(uuidStr));
55 ASSERT(num == 39);
56 return String(uuidStr + 1, num - 3).lower(); // remove opening and closing bracket and make it lower.
57#elif OS(DARWIN)
58 CFUUIDRef uuid = CFUUIDCreate(0);
59 CFStringRef uuidStrRef = CFUUIDCreateString(0, uuid);
60 String uuidStr(uuidStrRef);
61 CFRelease(uuidStrRef);
62 CFRelease(uuid);
63 return uuidStr.lower(); // make it lower.
64#elif OS(LINUX)
65 FILE* fptr = fopen("/proc/sys/kernel/random/uuid", "r");
66 if (!fptr)
67 return String();
68 char uuidStr[37] = {0};
69 fgets(uuidStr, sizeof(uuidStr) - 1, fptr);
70 fclose(fptr);
71 return String(uuidStr);
72#else
73 notImplemented();
74 return String();
75#endif
76}
77
78}