/usr/include/ntfs-3g/runlist.h is in ntfs-3g-dev 1:2017.3.23-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* runlist.h - Exports for runlist handling. Originated from the Linux-NTFS project.
*
* Copyright (c) 2002 Anton Altaparmakov
* Copyright (c) 2002 Richard Russon
*
* This program/include file 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 2 of the License, or
* (at your option) any later version.
*
* This program/include file 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 (in the main directory of the NTFS-3G
* distribution in the file COPYING); if not, write to the Free Software
* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _NTFS_RUNLIST_H
#define _NTFS_RUNLIST_H
#include "types.h"
/* Forward declarations */
typedef struct _runlist_element runlist_element;
typedef runlist_element runlist;
#include "attrib.h"
#include "volume.h"
/**
* struct _runlist_element - in memory vcn to lcn mapping array element.
* @vcn: starting vcn of the current array element
* @lcn: starting lcn of the current array element
* @length: length in clusters of the current array element
*
* The last vcn (in fact the last vcn + 1) is reached when length == 0.
*
* When lcn == -1 this means that the count vcns starting at vcn are not
* physically allocated (i.e. this is a hole / data is sparse).
*/
struct _runlist_element {/* In memory vcn to lcn mapping structure element. */
VCN vcn; /* vcn = Starting virtual cluster number. */
LCN lcn; /* lcn = Starting logical cluster number. */
s64 length; /* Run length in clusters. */
};
extern runlist_element *ntfs_rl_extend(ntfs_attr *na, runlist_element *rl,
int more_entries);
extern LCN ntfs_rl_vcn_to_lcn(const runlist_element *rl, const VCN vcn);
extern s64 ntfs_rl_pread(const ntfs_volume *vol, const runlist_element *rl,
const s64 pos, s64 count, void *b);
extern s64 ntfs_rl_pwrite(const ntfs_volume *vol, const runlist_element *rl,
s64 ofs, const s64 pos, s64 count, void *b);
extern runlist_element *ntfs_runlists_merge(runlist_element *drl,
runlist_element *srl);
extern runlist_element *ntfs_mapping_pairs_decompress(const ntfs_volume *vol,
const ATTR_RECORD *attr, runlist_element *old_rl);
extern int ntfs_get_nr_significant_bytes(const s64 n);
extern int ntfs_get_size_for_mapping_pairs(const ntfs_volume *vol,
const runlist_element *rl, const VCN start_vcn, int max_size);
extern int ntfs_write_significant_bytes(u8 *dst, const u8 *dst_max,
const s64 n);
extern int ntfs_mapping_pairs_build(const ntfs_volume *vol, u8 *dst,
const int dst_len, const runlist_element *rl,
const VCN start_vcn, runlist_element const **stop_rl);
extern int ntfs_rl_truncate(runlist **arl, const VCN start_vcn);
extern int ntfs_rl_sparse(runlist *rl);
extern s64 ntfs_rl_get_compressed_size(ntfs_volume *vol, runlist *rl);
#ifdef NTFS_TEST
int test_rl_main(int argc, char *argv[]);
#endif
#endif /* defined _NTFS_RUNLIST_H */
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