Restructure repository to include all source folders

Move git root from Client/ to src/ to track all source code:
- Client: Game client source (moved to Client/Client/)
- Server: Game server source
- GameTools: Development tools
- CryptoSource: Encryption utilities
- database: Database scripts
- Script: Game scripts
- rylCoder_16.02.2008_src: Legacy coder tools
- GMFont, Game: Additional resources

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Server/GashServer/IOBuffer.cpp

@@ -0,0 +1,228 @@
+// IOBuffer.cpp: implementation of the CIOBuffer class.
+//
+//////////////////////////////////////////////////////////////////////
+#include "stdafx.h"
+#include "IOBuffer.h"
+#include <string.h>
+
+//////////////////////////////////////////////////////////////////////
+// Construction/Destruction
+//////////////////////////////////////////////////////////////////////
+
+CIOBuffer::CIOBuffer()
+{
+	// Head는 읽을 버퍼의 시작위치.
+	// Tail은 사용되어진 버퍼의 끝.
+	m_iHead = m_iTail = 0;
+
+	// 생성한 버퍼의 사이즈
+	m_iBufSize = 0;
+	// 생성한 버퍼의 포인터.
+	m_cBuf = NULL;
+
+	// 사용된 버퍼의 사이즈 이값이 음수면 Over Flow..
+	m_iBuffered = 0;
+}
+
+CIOBuffer::~CIOBuffer()
+{
+	DeleteIOBuf();
+}
+
+void CIOBuffer::InitIOBuf()
+{
+	m_iHead = m_iTail = 0;
+	m_iBuffered = 0;
+
+	if(m_cBuf)
+		memset(m_cBuf, 0, sizeof(m_cBuf));
+}
+
+void CIOBuffer::NewIOBuf(int BufSize)
+{
+	if(BufSize <= 0)
+		BufSize = IOBUF_DEF_SIZE;
+	
+	m_cBuf = new char[BufSize];
+	if(m_cBuf == NULL)
+	{
+//		throw "CIOBuffer::NewIOBuf : Memory allocation failure!";
+		return;
+	}
+	
+	m_iBufSize = BufSize;
+	
+	InitIOBuf();
+}
+
+void CIOBuffer::DeleteIOBuf()
+{
+	if(m_cBuf)
+	{
+		delete []m_cBuf;
+		m_cBuf = NULL;
+	}
+	m_iBufSize = 0;
+	m_iHead = m_iTail = 0;
+	m_iBuffered = 0;
+}
+
+// Size 만큼 Buffer의 내용을 쓴다.
+int CIOBuffer::Append(char* Buffer, int Size)
+{
+	// 오버플로우가 된다. 
+	if(m_iBuffered + Size >= m_iBufSize)
+	{
+//		throw "CIOBuffer::Append : Buffer overflow";
+		return -1;
+	}
+
+	int aSize = 0;
+	int Added = 0;
+
+	// 모든 Size를 추가할때까지 처리한다.
+	while(Size > 0)
+	{
+		if(Size > m_iBufSize-m_iTail)
+			aSize = m_iBufSize-m_iTail;
+		else aSize = Size;
+
+		if(aSize)
+		{
+			memcpy(m_cBuf+m_iTail, Buffer, aSize);
+
+			Added += aSize;
+			Size -= aSize;
+			Buffer += aSize;
+			m_iTail += aSize;
+			if(m_iTail >= m_iBufSize)
+				m_iTail -= m_iBufSize;
+		}
+	}
+
+	CalcBuffered();
+
+	return Added;
+}
+
+// Size만큼 데이타를 읽어 Buffer에 쓴다.
+int	CIOBuffer::GetData(char* Buffer, int Size)
+{
+	// 써있는 데이타 보다 많이 읽으면 써있는 데이타만 읽게 한다.
+	if(GetBufferUsed() < Size)
+		Size = GetBufferUsed();
+
+	if(Size <= 0)
+		return 0;
+
+	// 잘려있으면. 처리한다.
+	if(m_iHead+Size >= m_iBufSize)
+	{
+		// 여기에 지금 버그가 있다.
+		int Size1 = m_iBufSize - m_iHead;
+		memcpy(Buffer, m_cBuf+m_iHead, Size1);
+		memcpy(Buffer+Size1, m_cBuf, Size-Size1);
+	}
+	else	// 안잘려 있으면.
+	{
+		memcpy(Buffer, m_cBuf+m_iHead, Size);
+	}
+
+	m_iHead += Size;
+	if(m_iHead >= m_iBufSize)
+		m_iHead -= m_iBufSize;
+
+	CalcBuffered();
+	return Size;
+}
+
+int CIOBuffer::CheckData(int Size)
+{
+	// 써있는 데이타 보다 많이 읽으면 써있는 데이타만 읽게 한다.
+	if(GetBufferUsed() < Size)
+		Size = GetBufferUsed();
+
+	if(Size <= 0)
+		return 0;
+
+	m_iHead += Size;
+	if(m_iHead >= m_iBufSize)
+		m_iHead -= m_iBufSize;
+
+	CalcBuffered();
+	return Size;
+}
+
+
+void CIOBuffer::CalcBuffered()
+{
+	if(m_iHead > m_iTail)
+		m_iBuffered =  m_iBufSize - m_iHead + m_iTail;
+	else
+		m_iBuffered =  m_iTail-m_iHead;
+}
+
+
+CPacketIOBuffer::CPacketIOBuffer()
+{
+	// 초기화.
+	CIOBuffer::CIOBuffer();
+}
+
+CPacketIOBuffer::~CPacketIOBuffer()
+{
+	DeleteIOBuf();
+}
+
+void CPacketIOBuffer::Lock()
+{
+	LockHead = GetHead();
+}
+
+void CPacketIOBuffer::UnLock()
+{
+	SetHead(LockHead);
+}
+
+int CPacketIOBuffer::GetPacket(char* Packet)
+{
+	if(m_iHead == m_iTail)
+		return 0;
+
+	memset(Packet, 0, MAX_PACKETSIZE);
+
+	int Size = 0;
+	int OldHead = GetHead();
+
+	char End[3] = "\r\n";
+
+	for(int i = 0; i < MAX_PACKETSIZE; ++i)
+	{
+		// 삽입
+		Packet[i] = m_cBuf[m_iHead];
+
+		m_iHead++;
+
+		if(m_iHead+1 > m_iBufSize)
+			m_iHead = 0;
+
+		if(m_iHead == m_iTail)
+			break;
+
+		if(i < 1)
+			continue;
+
+		if(strcmp(&Packet[i-1], End)==0)
+			break;
+	}
+
+	Size = (int)strlen(Packet);
+	if(Size == 0)
+	{
+		SetHead(OldHead);
+		return 0;
+	}
+
+	CalcBuffered();
+	return Size;
+}