simplify

1 files changed, 5 insertions, 10 deletions

diff --git a/cmd/ipp/main.go b/cmd/ipp/main.go
index 85207a8..16317e0 100644
--- a/cmd/ipp/main.go
+++ b/cmd/ipp/main.go
@@ -28,9 +28,6 @@ func main() {
 		panic(err)
 	}
 	defer cv.Close()
-	if flag.NArg() == 0 {
-		select {}
-	}
 	for i := 0; i < flag.NArg(); i += 2 {
 		var msgType byte
 		var msgData []byte
@@ -39,12 +36,10 @@ func main() {
 		} else {
 			msgType = byte(n)
 		}
-		if flag.NArg() >= i {
-			if bs, err := hex.DecodeString(flag.Arg(i + 1)); err != nil {
-				panic(err)
-			} else {
-				msgData = bs
-			}
+		if bs, err := hex.DecodeString(flag.Arg(i + 1)); err != nil {
+			panic(err)
+		} else {
+			msgData = bs
 		}
 		if err := cv.SendIPP(msgType, msgData); err != nil {
 			panic(err)
@@ -56,7 +51,7 @@ func main() {
 			}
 		}
 	}
-	if *follow {
+	if *follow || flag.NArg() == 0 {
 		select {}
 	}
 }