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hfs_functions.h
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/*******************************************************************************
* xmount Copyright (c) 2008-2018 by Gillen Daniel <gillen.dan@pinguin.lu> *
* *
* 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, either version 3 of the License, or (at your option) *
* any later version. *
* *
* 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 <http://www.gnu.org/licenses/>. *
*******************************************************************************/
#ifndef HFS_FUNCTIONS_H
#define HFS_FUNCTIONS_H
#include "../libxmount_morphing.h"
// Supported HFS types
typedef enum e_HfsType {
HfsType_HfsPlus=0
} te_HfsType;
// HFS extend
typedef struct s_HfsExtend {
uint32_t start_block;
uint32_t block_count;
} __attribute__ ((packed)) ts_HfsExtend, *pts_HfsExtend;
// Needed parts of the HFS volume header
#define HFS_VH_OFFSET 1024
#define HFS_VH_SIGNATURE 0x482b //"H+"
#define HFS_VH_VERSION 4
typedef struct s_HfsVH {
uint16_t signature; // "H+"
uint16_t version; // Currently 4 for HFS+
uint32_t unused01[9];
uint32_t block_size;
uint32_t total_blocks;
uint32_t free_blocks;
uint32_t unused02[15];
uint64_t alloc_file_size;
uint32_t alloc_file_clump_size;
uint32_t alloc_file_total_blocks;
ts_HfsExtend alloc_file_extends[8];
} __attribute__ ((packed)) ts_HfsVH, *pts_HfsVH;
// HFS handle
typedef struct s_HfsHandle {
te_HfsType hfs_type;
pts_HfsVH p_hfs_vh;
uint8_t *p_alloc_file;
uint8_t debug;
} ts_HfsHandle, *pts_HfsHandle;
int ReadHfsHeader(pts_HfsHandle p_hfs_handle,
pts_LibXmountMorphingInputFunctions p_input_functions,
uint8_t debug);
void FreeHfsHeader(pts_HfsHandle p_hfs_handle);
int ReadHfsAllocFile(pts_HfsHandle p_hfs_handle,
pts_LibXmountMorphingInputFunctions p_input_functions);
int BuildHfsBlockMap(pts_HfsHandle p_hfs_handle,
uint64_t **pp_free_block_map,
uint64_t *p_free_block_map_size,
uint64_t *p_block_size);
int GetHfsInfos(pts_HfsHandle p_hfs_handle, char **pp_buf);
#endif // HFS_FUNCTIONS_H

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