#ifndef IO_SYS_H
#define IO_SYS_H

#include "write.h"
#include "read.h"
#include "open.h"
#include "close.h"

#define STDIN_FD  0
#define STDOUT_FD 1
#define STDERR_FD 2

#define OPEN_READ_ONLY  0
#define OPEN_WRITE_ONLY 1
#define OPEN_READ_WRITE 2
#define OPEN_DIRECTORY  0200000

#define TYPE_UNKNOWN      0
#define TYPE_FIFO         1
#define TYPE_CHAR_DEVICE  2
#define TYPE_DIRECTORY    4
#define TYPE_BLOCK_DEVICE 6
#define TYPE_REGULAR_FILE 8
#define TYPE_SYM_LINK     10
#define TYPE_SOCKET       12

#endif