fixed offsetof issue
@@ -69,7 +69,7 @@ struct option_header_s
char option_data[1];
} __attribute__((__packed__));
typedef struct option_header_s option_header_t;
-#define OH_SIZE (sizeof(option_header_t))
+#define OH_SIZE offsetof(option_header_t, option_data)
/*===========================================================================*/
/* Option Field */
struct optionfield64_s
