Drain input when finalizing screen on Unix systems

Author: niten94

tscreen_unix.go

@@ -21,6 +21,7 @@ import (
 	"os/signal"
 	"strconv"
 	"syscall"
+	"time"
 
 	"golang.org/x/sys/unix"
 	"golang.org/x/term"
@@ -66,10 +67,15 @@ func (t *tScreen) termioFini() {
 
 	signal.Stop(t.sigwinch)
 
+	fd := int(t.out.(*os.File).Fd())
+
+	_ = t.in.(*os.File).SetReadDeadline(time.Now())
+	_ = tcSetBufParams(fd, 0, 0)
+
 	<-t.indoneq
 
 	if t.out != nil && t.saved != nil {
-		term.Restore(int(t.out.(*os.File).Fd()), t.saved)
+		term.Restore(fd, t.saved)
 		t.out.(*os.File).Close()
 	}