-extern int io_output(struct iop *, int);
-extern int io_peek(struct iop *, s_char *, int);
-extern int io_read(struct iop *, s_char *, int);
-extern int io_write(struct iop *, s_char *, int, int);
-extern int io_output_all(struct iop *);
-extern int io_gets(struct iop *, s_char *, int);
-extern int io_puts(struct iop *, s_char *);
-extern int io_shutdown(struct iop *, int);
+extern int io_output(struct iop *, time_t);
+extern int io_output_if_queue_long(struct iop *, time_t);
+extern int io_peek(struct iop *, char *, int);
+extern int io_read(struct iop *, char *, int);
+extern int io_write(struct iop *, char *, int);
+extern int io_gets(struct iop *, char *, int);
+extern int io_puts(struct iop *, char *);