diff --git a/src/utility.h b/src/utility.h
new file mode 100644
index 00000000..64d2e16b
--- /dev/null
+++ b/src/utility.h
@@ -0,0 +1,16 @@
+#ifndef CC_UTILITY_H
+#define CC_UTILITY_H
+
+#ifdef _WIN32
+#include <winsock2.h>
+#else
+#include <arpa/inet.h>
+#endif
+
+#define RL32(x) (*(unsigned int *)(x))
+#define RB32(x) (ntohl(*(unsigned int *)(x)))
+#define RL16(x) (*(unsigned short int*)(x))
+#define RB16(x) (ntohs(*(unsigned short int*)(x)))
+
+
+#endif