lib/sqfs/write_super.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

/* SPDX-License-Identifier: LGPL-3.0-or-later */
/*
 * write_super.c
 *
 * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
 */
#define SQFS_BUILDING_DLL
#include "config.h"

#include "sqfs/super.h"
#include "sqfs/io.h"
#include "compat.h"

int sqfs_super_write(const sqfs_super_t *super, sqfs_file_t *file)
{
	sqfs_super_t copy;

	copy.magic = htole32(super->magic);
	copy.inode_count = htole32(super->inode_count);
	copy.modification_time = htole32(super->modification_time);
	copy.block_size = htole32(super->block_size);
	copy.fragment_entry_count = htole32(super->fragment_entry_count);
	copy.compression_id = htole16(super->compression_id);
	copy.block_log = htole16(super->block_log);
	copy.flags = htole16(super->flags);
	copy.id_count = htole16(super->id_count);
	copy.version_major = htole16(super->version_major);
	copy.version_minor = htole16(super->version_minor);
	copy.root_inode_ref = htole64(super->root_inode_ref);
	copy.bytes_used = htole64(super->bytes_used);
	copy.id_table_start = htole64(super->id_table_start);
	copy.xattr_id_table_start = htole64(super->xattr_id_table_start);
	copy.inode_table_start = htole64(super->inode_table_start);
	copy.directory_table_start = htole64(super->directory_table_start);
	copy.fragment_table_start = htole64(super->fragment_table_start);
	copy.export_table_start = htole64(super->export_table_start);

	return file->write_at(file, 0, &copy, sizeof(copy));
}