struct	stat
{
	dev_t	st_dev;
	ino_t	st_ino;
	u_short st_mode;
	short	st_nlink;
	short  	st_uid;
	short  	st_gid;
	dev_t	st_rdev;
	off_t	st_size;
	time_t	st_atime;
	time_t	st_mtime;
	time_t	st_ctime;
};

#define	S_IFMT	0170000			/* type of file */
#define		S_IFCHR		0020000	/* character special */
#define		S_IFMPC		0030000	/* multiplexed char special */
#define		S_IFDIR		0040000	/* directory */
#define		S_IFBLK		0060000	/* block special */
#define		S_IFMPB		0070000	/* multiplexed block special */
#define		S_IFREG		0100000	/* regular */
#define		S_IFLNK		0120000	/* symbolic link */
#define		S_IFQUOT	0140000	/* quota */

#define	S_ISUID		0004000		/* set user id on execution */
#define	S_ISGID		0002000		/* set group id on execution */
#define	S_ISVTX		0001000		/* save swapped text even after use */
#define	S_IREAD		0000400		/* read permission, owner */
#define	S_IWRITE	0000200		/* write permission, owner */
#define	S_IEXEC		0000100		/* execute/search permission, owner */
