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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* sqfsdiff.h
*
* Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
*/
#ifndef DIFFTOOL_H
#define DIFFTOOL_H
#include "config.h"
#include "common.h"
#include "util/util.h"
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#define MAX_WINDOW_SIZE (1024 * 1024 * 4)
typedef struct {
sqfs_compressor_config_t cfg;
sqfs_compressor_t *cmp;
sqfs_super_t super;
sqfs_file_t *file;
sqfs_id_table_t *idtbl;
sqfs_dir_reader_t *dr;
sqfs_tree_node_t *root;
sqfs_data_reader_t *data;
sqfs_compressor_config_t options;
bool have_options;
} sqfs_state_t;
typedef struct {
const char *old_path;
const char *new_path;
int compare_flags;
sqfs_state_t sqfs_old;
sqfs_state_t sqfs_new;
bool compare_super;
const char *extract_dir;
} sqfsdiff_t;
enum {
COMPARE_NO_PERM = 0x01,
COMPARE_NO_OWNER = 0x02,
COMPARE_NO_CONTENTS = 0x04,
COMPARE_TIMESTAMP = 0x08,
COMPARE_INODE_NUM = 0x10,
COMPARE_EXTRACT_FILES = 0x20,
};
int compare_dir_entries(sqfsdiff_t *sd, sqfs_tree_node_t *old,
sqfs_tree_node_t *new);
char *node_path(const sqfs_tree_node_t *n);
int compare_files(sqfsdiff_t *sd, const sqfs_inode_generic_t *old,
const sqfs_inode_generic_t *new, const char *path);
int node_compare(sqfsdiff_t *sd, sqfs_tree_node_t *a, sqfs_tree_node_t *b);
int compare_super_blocks(const sqfs_super_t *a, const sqfs_super_t *b);
int extract_files(sqfsdiff_t *sd, const sqfs_inode_generic_t *old,
const sqfs_inode_generic_t *new,
const char *path);
void process_options(sqfsdiff_t *sd, int argc, char **argv);
#endif /* DIFFTOOL_H */
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