+#include <sys/ioctl.h>
+#include <termios.h>
+
+struct info {
+ int fd; /* file descriptor */
+ int ldisc; /* line discipline */
+ int off; /* turn off */
+ int set; /* need set */
+ int wset; /* need window set */
+ char *arg; /* argument */
+ struct termios t; /* terminal info */
+ struct winsize win; /* window info */