Renaming files

common/crc16.cpp

@@ -0,0 +1,15 @@
+#include "crc32.h"
+
+uint16 CRC16(const unsigned char *buf, int size, int key)
+{
+	// This is computed as the lowest 16 bits of an Ethernet CRC32 checksum
+	// where the key is prepended to the data in little endian order.
+	uint8 keyBuf[] = {(uint8)((key >> 0) & 0xff),
+					(uint8)((key >> 8) & 0xff),
+					(uint8)((key >> 16) & 0xff),
+					(uint8)((key >> 24) & 0xff)};
+	uint32 crc = CRC32::Update(keyBuf, sizeof(uint32));
+	crc = CRC32::Update(buf, size, crc);
+	return CRC32::Finish(crc) & 0xffff;
+}
+