#ifndef _LIBC_SYS_STAT_H
#define _LIBC_SYS_STAT_H

#pragma once

#include <sys/types.h>

#ifdef __cplusplus
extern "C" {
#endif

#define S_IFMT  0170000
#define S_IFDIR 0040000
#define S_IFREG 0100000
#define S_IFCHR 0020000
#define S_IFLNK 0120000

#define S_ISDIR(mode)  (((mode) & S_IFMT) == S_IFDIR)
#define S_ISREG(mode)  (((mode) & S_IFMT) == S_IFREG)
#define S_ISCHR(mode)  (((mode) & S_IFMT) == S_IFCHR)
#define S_ISLNK(mode)  (((mode) & S_IFMT) == S_IFLNK)
#define S_ISFIFO(mode) (0)
#define S_ISSOCK(mode) (0)
#define S_ISBLK(mode)  (0)

/* stat() reports real permission bits: ext2 stores them natively, the
   ramdisk takes them from the USTAR header, and FAT32 synthesizes them from
   its read-only attribute. Changing them (chmod) is still not supported. */
#define S_IRWXU 0700
#define S_IRUSR 0400
#define S_IWUSR 0200
#define S_IXUSR 0100
#define S_IRWXG 0070
#define S_IRGRP 0040
#define S_IWGRP 0020
#define S_IXGRP 0010
#define S_IRWXO 0007
#define S_IROTH 0004
#define S_IWOTH 0002
#define S_IXOTH 0001

struct stat {
    dev_t     st_dev;
    ino_t     st_ino;
    mode_t    st_mode;
    nlink_t   st_nlink;
    uid_t     st_uid;
    gid_t     st_gid;
    off_t     st_size;
    blksize_t st_blksize;
    blkcnt_t  st_blocks;
    time_t    st_atime;
    time_t    st_mtime;
    time_t    st_ctime;
};

int    mkdir(const char *path, unsigned int mode);
int    stat(const char *path, struct stat *buf);
int    fstat(int fd, struct stat *buf);
int    lstat(const char *path, struct stat *buf);
int    chmod(const char *path, mode_t mode);
int    fchmod(int fd, mode_t mode);
mode_t umask(mode_t mask);

#ifdef __cplusplus
}
#endif

#endif /* _LIBC_SYS_STAT_H */