/** @file * IPRT - Universal Unique Identifiers (UUID). */ /* * Copyright (C) 2006-2020 Oracle Corporation * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE 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. */ #ifndef IPRT_INCLUDED_uuid_h #define IPRT_INCLUDED_uuid_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include 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 */