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/** @file
* IPRT - Extensible Archiver (XAR) format.
*/
/*
* Copyright (C) 2013-2022 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_formats_xar_h
#define IPRT_INCLUDED_formats_xar_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/types.h>
#include <iprt/assertcompile.h>
/** @defgroup grp_rt_formats_xar Extensible Archive (XAR) format
* @ingroup grp_rt_formats
*
* @{ */
#pragma pack(4) /* Misdesigned header, not 8-byte aligned size. */
typedef struct XARHEADER
{
/** The magic number 'xar!' (XAR_HEADER_MAGIC). */
uint32_t u32Magic;
/** The size of this header structure. */
uint16_t cbHeader;
/** The header version structure. */
uint16_t uVersion;
/** The size of the compressed table of content (TOC). */
uint64_t cbTocCompressed;
/** The size of the table of context (TOC) when not compressed. */
uint64_t cbTocUncompressed;
/** Which cryptographic hash function is used (XAR_HASH_XXX). */
uint32_t uHashFunction;
} XARHEADER;
#pragma pack()
AssertCompileSize(XARHEADER, 28);
/** Pointer to a XAR header. */
typedef XARHEADER *PXARHEADER;
/** Pointer to a const XAR header. */
typedef XARHEADER const *PCXARHEADER;
/** XAR magic value (on disk endian). */
#define XAR_HEADER_MAGIC RT_H2LE_U32(RT_MAKE_U32_FROM_U8('x', 'a', 'r', '!'))
/** The current header version value (host endian). */
#define XAR_HEADER_VERSION 1
/** @name XAR hashing functions.
* @{ */
#define XAR_HASH_NONE 0
#define XAR_HASH_SHA1 1
#define XAR_HASH_MD5 2
#define XAR_HASH_MAX 2
/** @} */
/** @} */
#endif /* !IPRT_INCLUDED_formats_xar_h */
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