-CFile cf_open (MFile mf, const char *fname, int block_size, int wflag,
- int *firstp);
+CFile cf_open (MFile mf, MFile_area area, const char *fname, int block_size,
+ int wflag, int *firstp);
int cf_read (CFile cf, int no, int offset, int num, void *buf);
int cf_write (CFile cf, int no, int offset, int num, const void *buf);
void cf_commit (CFile cf);
int cf_read (CFile cf, int no, int offset, int num, void *buf);
int cf_write (CFile cf, int no, int offset, int num, const void *buf);
void cf_commit (CFile cf);