Initial MSVC 2008 projects workspace

2012-02-01 05:25:08 +00:00
commit 03de3bdc95
1446 changed files with 476853 additions and 0 deletions
--- a/l2packets/game/L2GamePacket.cpp
+++ b/l2packets/game/L2GamePacket.cpp
@@ -0,0 +1,153 @@
+#include "stdafx.h"
+#include "L2GamePacket.h"
+
+L2GamePacket::L2GamePacket()
+{
+	this->_initNull();
+}
+
+L2GamePacket::L2GamePacket( const unsigned char *bytes, unsigned int length )
+{
+	this->_initNull();
+	this->setBytes( bytes, length );
+}
+
+// in Hellbound key must be 16-byte array
+// key is changed after enc/dec procedure
+bool L2GamePacket::decodeXOR( unsigned char *key )
+{
+	if( !key ) return false;
+	unsigned int sz  = this->getPacketSize();
+	unsigned int dsz = this->getDataSize();
+	if( sz < 3 ) return false;
+	unsigned char temp = 0, temp2 = 0;
+	unsigned int i = 0;
+	unsigned char *data = (unsigned char *)this->getBytesPtr();
+	// xor enc/dec from index 2 (pass 2 bytes - packet size)
+	data += 2;
+	for( i = 0; i < dsz; i++ )
+	{
+		temp2 = data[i];
+		data[i] = (temp2 ^ (key[i & 15]) ^ temp);
+		temp = temp2;
+	}
+
+	unsigned int old = 0;
+	old |=  key[8]           & 0x000000ff;
+	old |= (key[9]  << 0x08) & 0x0000ff00;
+	old |= (key[10] << 0x10) & 0x00ff0000;
+	old |= (key[11] << 0x18) & 0xff000000;
+
+	//old += sz;
+	old += dsz; // key increases by data size
+
+	key[8]  = (unsigned char)((old)         & 0xff);
+	key[9]  = (unsigned char)((old >> 0x08) & 0xff);
+	key[10] = (unsigned char)((old >> 0x10) & 0xff);
+	key[11] = (unsigned char)((old >> 0x18) & 0xff);
+	return true;
+}
+
+// in Hellbound key must be 16-byte array
+// key is changed after enc/dec procedure
+bool L2GamePacket::encodeXOR( unsigned char *key )
+{
+	if( !key ) return false;
+	unsigned int  sz  = this->getPacketSize();
+	unsigned int  dsz = this->getDataSize();
+	if( sz < 3 ) return false;
+	unsigned char temp = 0, temp2 = 0;
+	unsigned int  i = 0;
+	unsigned char *data = (unsigned char *)this->getBytesPtr();
+	// xor enc/dec from index 2 (pass 2 bytes - packet size)
+	data += 2;
+	for( i = 0; i < dsz; i++ )
+	{
+		temp2 = data[i];
+		data[i] = (temp2 ^ (key[i & 15]) ^ temp );
+		temp = data[i];
+	}
+
+	unsigned int old = 0;
+	old |=  key[8]           & 0x000000ff;
+	old |= (key[9]  << 0x08) & 0x0000ff00;
+	old |= (key[10] << 0x10) & 0x00ff0000;
+	old |= (key[11] << 0x18) & 0xff000000;
+
+	//old += sz;
+	old += dsz; // key increases by data size
+
+	key[8]  = (unsigned char)((old)         & 0xff);
+	key[9]  = (unsigned char)((old >> 0x08) & 0xff);
+	key[10] = (unsigned char)((old >> 0x10) & 0xff);
+	key[11] = (unsigned char)((old >> 0x18) & 0xff);
+	return true;
+}
+
+bool L2GamePacket::decodeXOR_buffer( unsigned char *decodeBytes, unsigned int bytesLen,
+										   unsigned char *key )
+{
+	//if( !key ) return false;
+	unsigned int dsz = bytesLen - 2;
+	//if( sz < 3 ) return false;
+	unsigned char temp = 0, temp2 = 0;
+	unsigned int i = 0;
+	unsigned char *data = decodeBytes;
+	// xor enc/dec from index 2 (pass 2 bytes - packet size)
+	data += 2;
+	for( i = 0; i < dsz; i++ )
+	{
+		temp2 = data[i];
+		data[i] = (temp2 ^ (key[i & 15]) ^ temp);
+		temp = temp2;
+	}
+
+	unsigned int old = 0;
+	old |=  key[8]           & 0x000000ff;
+	old |= (key[9]  << 0x08) & 0x0000ff00;
+	old |= (key[10] << 0x10) & 0x00ff0000;
+	old |= (key[11] << 0x18) & 0xff000000;
+
+	//old += sz;
+	old += dsz; // key increases by data size
+
+	key[8]  = (unsigned char)((old)         & 0xff);
+	key[9]  = (unsigned char)((old >> 0x08) & 0xff);
+	key[10] = (unsigned char)((old >> 0x10) & 0xff);
+	key[11] = (unsigned char)((old >> 0x18) & 0xff);
+	return true;
+}
+
+bool L2GamePacket::encodeXOR_buffer( unsigned char *encodeBytes, unsigned int bytesLen,
+										   unsigned char *key )
+{
+	//if( !key ) return false;
+	unsigned int  dsz = bytesLen - 2;
+	//if( sz < 3 ) return false;
+	unsigned char temp = 0, temp2 = 0;
+	unsigned int  i = 0;
+	unsigned char *data = encodeBytes;
+	// xor enc/dec from index 2 (pass 2 bytes - packet size)
+	data += 2;
+	for( i = 0; i < dsz; i++ )
+	{
+		temp2 = data[i];
+		data[i] = (temp2 ^ (key[i & 15]) ^ temp );
+		temp = data[i];
+	}
+
+	unsigned int old = 0;
+	old |=  key[8]           & 0x000000ff;
+	old |= (key[9]  << 0x08) & 0x0000ff00;
+	old |= (key[10] << 0x10) & 0x00ff0000;
+	old |= (key[11] << 0x18) & 0xff000000;
+
+	//old += sz;
+	old += dsz; // key increases by data size
+
+	key[8]  = (unsigned char)((old)         & 0xff);
+	key[9]  = (unsigned char)((old >> 0x08) & 0xff);
+	key[10] = (unsigned char)((old >> 0x10) & 0xff);
+	key[11] = (unsigned char)((old >> 0x18) & 0xff);
+	return true;
+}