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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 "highlevel.h"
#include "fstree.h"
#include "util.h"
#include <sys/mman.h>
#include <unistd.h>
#include <stdlib.h>
#include <getopt.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#define MAX_WINDOW_SIZE (1024 * 1024 * 4)
typedef struct {
const char *old_path;
const char *new_path;
int compare_flags;
sqfs_reader_t sqfs_old;
sqfs_reader_t sqfs_new;
bool old_is_dir;
bool new_is_dir;
bool compare_super;
const char *extract_dir;
/* holds the coresponding dirfds if old or new is a directory */
int old_fd;
int new_fd;
} 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, tree_node_t *a, tree_node_t *b);
char *node_path(tree_node_t *n);
int compare_files(sqfsdiff_t *sd, file_info_t *a, file_info_t *b,
const char *path);
int node_compare(sqfsdiff_t *sd, tree_node_t *a, tree_node_t *b);
int compare_super_blocks(const sqfs_super_t *a, const sqfs_super_t *b);
int extract_files(sqfsdiff_t *sd, file_info_t *old, file_info_t *new,
const char *path);
void process_options(sqfsdiff_t *sd, int argc, char **argv);
#endif /* DIFFTOOL_H */
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