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/** @file
* IPRT - Universal Unique Identifiers (UUID).
*/
/*
* Copyright (C) 2006-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
#ifndef IPRT_INCLUDED_uuid_h
#define IPRT_INCLUDED_uuid_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/cdefs.h>
#include <iprt/types.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_rt_uuid RTUuid - Universally Unique Identifiers
* @ingroup grp_rt
* @{
*/
/**
* Generates new UUID value.
*
* @note IPRT uses little endian byte ordering in the UUID integer fields. If
* you want to pass IPRT UUIDs in binary representation to other UUID libraries
* and expect to get exactly the same string representation as in IPRT, you
* need to convert the first three integer fields (one 32 bit value, two 16 bit
* values) separately to big endian (also called network byte order).
*
* @sa RTUUID::Gen
*
* @returns iprt status code.
* @param pUuid Where to store generated uuid.
*/
RTDECL(int) RTUuidCreate(PRTUUID pUuid);
/**
* Makes null UUID value.
*
* @returns iprt status code.
* @param pUuid Where to store generated null uuid.
*/
RTDECL(int) RTUuidClear(PRTUUID pUuid);
/**
* Checks if UUID is null.
*
* @returns true if UUID is null.
* @param pUuid uuid to check.
*/
RTDECL(bool) RTUuidIsNull(PCRTUUID pUuid);
/**
* Compares two UUID values.
*
* @returns 0 if eq, < 0 or > 0.
* @param pUuid1 First value to compare. NULL is treated like if
* RTUuidIsNull() return true.
* @param pUuid2 Second value to compare. NULL is treated like if
* RTUuidIsNull() return true.
*/
RTDECL(int) RTUuidCompare(PCRTUUID pUuid1, PCRTUUID pUuid2);
/**
* Compares a UUID value with a UUID string.
*
* @note IPRT uses little endian byte ordering in the UUID integer fields. If
* you want to pass IPRT UUIDs in binary representation to other UUID libraries
* and expect to get exactly the same string representation as in IPRT, you need
* to convert the first three integer fields (one 32 bit value, two 16 bit
* values) separately to big endian (also called network byte order).
* Correspondingly, if you want to get the right result with UUIDs which are in
* big endian format, you need to convert them before using this function.
*
* @sa RTUUID::Gen
*
* @returns 0 if eq, < 0 or > 0.
* @param pUuid1 First value to compare. NULL is not allowed.
* @param pszString2 The 2nd UUID in string form. NULL or malformed
* string is not permitted.
*/
RTDECL(int) RTUuidCompareStr(PCRTUUID pUuid1, const char *pszString2);
/**
* Compares two UUID strings.
*
* @returns 0 if eq, < 0 or > 0.
* @param pszString1 The 1st UUID in string from. NULL or malformed
* string is not permitted.
* @param pszString2 The 2nd UUID in string form. NULL or malformed
* string is not permitted.
*/
RTDECL(int) RTUuidCompare2Strs(const char *pszString1, const char *pszString2);
/**
* Converts binary UUID to its string representation.
*
* @note IPRT uses little endian byte ordering in the UUID integer fields. If
* you want to pass IPRT UUIDs in binary representation to other UUID libraries
* and expect to get exactly the same string representation as in IPRT, you
* need to convert the first three integer fields (one 32 bit value, two 16 bit
* values) separately to big endian (also called network byte order).
* Correspondingly, if you want to get the right result with UUIDs which are in
* big endian format, you need to convert them before using this function.
*
* @sa RTUUID::Gen
*
* @returns iprt status code.
* @param pUuid Uuid to convert.
* @param pszString Where to store result string.
* @param cchString pszString buffer length, must be >= RTUUID_STR_LENGTH.
*/
RTDECL(int) RTUuidToStr(PCRTUUID pUuid, char *pszString, size_t cchString);
/**
* Converts UUID from its string representation to binary format.
*
* @note IPRT uses little endian byte ordering in the UUID integer fields. If
* you want to pass IPRT UUIDs in binary representation to other UUID libraries
* and expect to get exactly the same string representation as in IPRT, you
* need to convert the first three integer fields (one 32 bit value, two 16 bit
* values) separately to big endian (also called network byte order).
* Correspondingly, if you want to get the right result with UUIDs which are in
* big endian format, you need to convert them before using this function.
*
* @sa RTUUID::Gen
*
* @returns iprt status code.
* @param pUuid Where to store result Uuid.
* @param pszString String with UUID text data.
*/
RTDECL(int) RTUuidFromStr(PRTUUID pUuid, const char *pszString);
/**
* Converts binary UUID to its UTF-16 string representation.
*
* @note See note in RTUuidToStr.
*
* @sa RTUUID::Gen
*
* @returns iprt status code.
* @param pUuid Uuid to convert.
* @param pwszString Where to store result string.
* @param cwcString pszString buffer length, must be >=
* RTUUID_STR_LENGTH.
*/
RTDECL(int) RTUuidToUtf16(PCRTUUID pUuid, PRTUTF16 pwszString, size_t cwcString);
/**
* Converts UUID from its UTF-16 string representation to binary format.
*
* @note See note in RTUuidFromStr.
*
* @sa RTUUID::Gen
*
* @returns iprt status code.
* @param pUuid Where to store result Uuid.
* @param pwszString String with UUID text data.
*/
RTDECL(int) RTUuidFromUtf16(PRTUUID pUuid, PCRTUTF16 pwszString);
/** @} */
RT_C_DECLS_END
#endif /* !IPRT_INCLUDED_uuid_h */
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