--- Net2/arch/i386/stand/prf.c	2018/04/24 18:04:01	1.1.1.1
+++ Net2/arch/i386/stand/prf.c	2018/04/24 18:20:35	1.1.1.3
@@ -33,7 +33,8 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	@(#)prf.c	7.4 (Berkeley) 5/4/91
+ *	from: @(#)prf.c	7.4 (Berkeley) 5/4/91
+ *	prf.c,v 1.2 1993/05/22 08:02:20 cgd Exp
  */
 
 #include "types.h"
@@ -47,4 +48,9 @@ char c;
 	return(0);
 }
 
-wait(n) { while(n--) ; }
+wait(n) {
+	int v;
+
+	while(n-- && (v = scankbd()) == 0);
+	if (v) kbdreset();
+}