2 #define HEADER_FILE_H 1
10 off_t file_read (struct file *, void *, off_t);
11 off_t file_write (struct file *, const void *, off_t);
12 off_t file_length (struct file *);
13 void file_seek (struct file *, off_t);
14 off_t file_tell (struct file *);