struct stat {
   dev_t     st_dev;     // ID of device containing file
   ino_t     st_ino;     // inode number
   mode_t    st_mode;    // file type + permissions
   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
   blksize_t st_blksize; // blocksize for file system I/O
   blkcnt_t  st_blocks;  // number of 512B blocks allocated
   time_t    st_atime;   // time of last access
   time_t    st_mtime;   // time of last modification
   time_t    st_ctime;   // time of last status change
};