| 1 | /* $Id: RTUuidCreate-generic.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - UUID, Generic RTUuidCreate implementation.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*******************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *******************************************************************************/
|
|---|
| 31 | #include <iprt/uuid.h>
|
|---|
| 32 | #include "internal/iprt.h"
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/assert.h>
|
|---|
| 35 | #include <iprt/err.h>
|
|---|
| 36 | #include <iprt/rand.h>
|
|---|
| 37 |
|
|---|
| 38 |
|
|---|
| 39 | /* WARNING: This implementation ASSUMES little endian. Does not work on big endian! */
|
|---|
| 40 |
|
|---|
| 41 | /* Remember, the time fields in the UUID must be little endian. */
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 | RTDECL(int) RTUuidCreate(PRTUUID pUuid)
|
|---|
| 45 | {
|
|---|
| 46 | /* validate input. */
|
|---|
| 47 | AssertPtrReturn(pUuid, VERR_INVALID_PARAMETER);
|
|---|
| 48 |
|
|---|
| 49 | RTRandBytes(pUuid, sizeof(*pUuid));
|
|---|
| 50 | pUuid->Gen.u8ClockSeqHiAndReserved = (pUuid->Gen.u8ClockSeqHiAndReserved & 0x3f) | 0x80;
|
|---|
| 51 | pUuid->Gen.u16TimeHiAndVersion = (pUuid->Gen.u16TimeHiAndVersion & 0x0fff) | 0x4000;
|
|---|
| 52 |
|
|---|
| 53 | return VINF_SUCCESS;
|
|---|
| 54 | }
|
|---|
| 55 | RT_EXPORT_SYMBOL(RTUuidCreate);
|
|---|
| 56 |
|
|---|
