extern int open(const char *path, int flags);
extern int reopen(int fd, const char *path, int flags);
extern void close(int fd);
-extern uint64_t read(int fd, uint64_t length, void *buffer);
-extern uint64_t write(int fd, uint64_t length, void *buffer);
+extern uint read(int fd, uint length, void *buffer);
+extern uint write(int fd, uint length, void *buffer);
extern int seek(int fd, uint64_t offset, int whence);
extern uint64_t tell(int fd);
extern int ioctl(int fd, int id, void *data);