feat: updates, not works

main.go

@@ -15,9 +15,36 @@ func main() {
 	fmt.Println(hex.EncodeToString(key))
 
 	encFs := encfs.NewEncFs(key)
+	encFs2 := encfs.NewEncFs(nil)
 
 	write := false
 
+	// -----------------------------------------------------------------------------------------------------------------------------------
+	encFile1, err := encFs2.Create("test1")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	encFile1.Write([]byte("hello world"))
+	encFile1.Write([]byte("XXXXXXXXXXXXXXXXXXXXXXXXXXXXX"))
+	encFile1.Close()
+
+	encFile2, err := encFs2.Create("test2")
+	if err != nil {
+		fmt.Println(err)
+		return
+	}
+	encFile2.Write([]byte("hello world"))
+	// 0 move
+	// 1, 2 append 00
+	// 3 no effect
+	seekI, err := encFile2.Seek(2, 3)
+	fmt.Println(seekI, ", ", err)
+	encFile2.Write([]byte("XXXXXXXXXXXXXXXXXXXXXXXXXXXXX"))
+	encFile2.Close()
+
+	// -----------------------------------------------------------------------------------------------------------------------------------
+
 	if write {
 		encFile, err := encFs.Create("test")
 		if err != nil {
@@ -27,8 +54,8 @@ func main() {
 
 		encFile.Write([]byte("hello world"))
 
-		seekI, err := encFile.Seek(1, 1)
-		fmt.Println(seekI, ", ", err)
+		// seekI, err := encFile.Seek(1, 1)
+		// fmt.Println(seekI, ", ", err)
 
 		encFile.Write([]byte("XXXXXXXXXXXXXXXXXXXXXXXXXXXXX"))
 
@@ -45,7 +72,8 @@ func main() {
 		}
 
 		rr, err := io.ReadAll(encFile)
-		fmt.Println(rr, string(rr), err)
+		fmt.Println(hex.EncodeToString(rr))
+		fmt.Println(string(rr), err)
 
 	}
 }