#ifndef FT_PING_H
# define FT_PING_H

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <sys/time.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <byteswap.h>

#include <fcntl.h>

#define PACKET_DATA_LENGTH 40

#define HELP_MESSAGE " [OPTION...] HOST ...\n\
Send ICMP ECHO_REQUEST packets to network hosts.\n"


typedef struct s_settings
{
	char	*host;
	int		count;	// -c (--count)
	int		timeout; // -w (--timeout)
	short	flood;	// -f (--flood)
	short	no_resolve; //-n (--numeric)
	int		ttl;	// --ttl
	
	short	stop;
	short	err;
	
} t_settings;


typedef struct s_icmp_echo
{
	uint8_t			type;
	uint8_t			code;
	uint16_t		checksum;
	uint16_t		identifier;
	uint16_t		sequence;
	struct timeval	time;
	uint8_t			data[40];
} t_icmp_echo;

t_icmp_echo prepare_icmp_echo(uint16_t sequence, uint16_t identifier);

#endif