#ifndef _KERNEL_LIBKERN_BITS_SYS_STAT_H
#define _KERNEL_LIBKERN_BITS_SYS_STAT_H

#include <libkern/bits/time.h>
#include <libkern/types.h>

#define S_IFMT 0xF000

/* MODES */
#define S_IFSOCK 0xC000 /* [XSI] socket */
#define S_IFLNK 0xA000 /* [XSI] symbolic link */
#define S_IFREG 0x8000 /* [XSI] regular */
#define S_IFBLK 0x6000 /* [XSI] block special */
#define S_IFDIR 0x4000 /* [XSI] directory */
#define S_IFCHR 0x2000 /* [XSI] character special */
#define S_IFIFO 0x1000 /* [XSI] named pipe (fifo) */

#define S_ISUID 0x0800
#define S_ISGID 0x0400
#define S_ISVTX 0x0200

/* Read, write, execute/search by owner */
#define S_IRWXU 0x01c0
#define S_IRUSR 0x0100
#define S_IWUSR 0x0080
#define S_IXUSR 0x0040
/* Read, write, execute/search by group */
#define S_IRWXG 0x0038
#define S_IRGRP 0x0020
#define S_IWGRP 0x0010
#define S_IXGRP 0x0008
/* Read, write, execute/search by others */
#define S_IRWXO 0x0007
#define S_IROTH 0x0004
#define S_IWOTH 0x0002
#define S_IXOTH 0x0001

#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
#define S_ISCHR(m) (((m)&S_IFMT) == S_IFCHR)
#define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK)
#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
#define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO)
#define S_ISLNK(m) (((m)&S_IFMT) == S_IFLNK)
#define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK)

struct stat {
    dev_t st_dev; /* ID of device containing file */
    ino_t st_ino; /* Inode number */
    mode_t st_mode; /* File type and mode */
    nlink_t st_nlink; /* Number of hard links */
    uid_t st_uid; /* User ID of owner */
    gid_t st_gid; /* Group ID of owner */
    dev_t st_rdev; /* Device ID (if special file) */
    off_t st_size; /* Total size, in bytes */
    uint32_t st_blksize; /* Block size for filesystem I/O */
    uint32_t st_blocks; /* Number of 512B blocks allocated */

    struct timespec st_atim; /* Time of last access */
    struct timespec st_mtim; /* Time of last modification */
    struct timespec st_ctim; /* Time of last status change */
};
typedef struct stat stat_t;

#endif // _KERNEL_LIBKERN_BITS_SYS_STAT_H