#ifndef _FT_NM_H
# define _FT_NM_H

# include <unistd.h>
# include <sys/mman.h>
# include <fcntl.h>
# include <stdio.h>
# include <elf.h>
# include <sys/stat.h>
# include <stdbool.h>
# include <stdarg.h>

# include "libft.h"

# define FT_NM_SUCCESS 0
# define FT_NM_FAILURE -1

typedef enum e_verbosity {
	ALL,
	DEFAULT_VERBOSITY,
	GLOBAL,
	UNDEFINED
} t_verbosity;

typedef enum e_ordering {
	DEFAULT_ORDERING,
	REVERSE,
	NOSORT
} t_ordering;

typedef struct s_entry {
	t_verbosity verbosity;
	char *string;
	char *symbol;
} t_entry;

typedef struct s_env {
	char *bin_name;
	t_verbosity verbosity;
	t_ordering ordering;
	t_list *list;
	int list_len;
	bool has_multiple_files;
} t_env;

typedef struct s_mapped_file {
	void *ptr;
	off_t size;
} t_mapped_file;

void ft_printf(const char *format, ...);
void ft_nm_error(const char *path);

int check_ident(unsigned char ident[EI_NIDENT]);
void *fetch(t_mapped_file mapped_file, size_t offset, size_t fetch_size);

int nm32(t_mapped_file mapped_file, char *path, t_verbosity verbosity, t_ordering ordering);
int get_header32(t_mapped_file mapped_file, Elf32_Ehdr *header);

int nm64(t_mapped_file mapped_file, char *path, t_verbosity verbosity, t_ordering ordering);
int get_header64(t_mapped_file mapped_file, Elf64_Ehdr *header);

int strcmp_nm(void *a, void *b);
int reverse(void *a, void *b);
int nosort(void *a, void *b);
void put_entry(void *data);

char ft_get_hex_digit(char c);

#endif