1 files changed, 129 insertions, 0 deletions
diff --git a/zip/ZipArchive/ZipMemFile.h b/zip/ZipArchive/ZipMemFile.h
new file mode 100644
index 0000000..948e73e
--- /dev/null
+++ b/zip/ZipArchive/ZipMemFile.h
@@ -0,0 +1,129 @@
+////////////////////////////////////////////////////////////////////////////////
+// This source file is part of the ZipArchive library source distribution and
+// is Copyrighted 2000 - 2007 by Artpol Software - Tadeusz Dracz
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+// 
+// For the licensing details refer to the License.txt file.
+//
+// Web Site: http://www.artpol-software.com
+////////////////////////////////////////////////////////////////////////////////
+
+/**
+* \file ZipMemFile.h
+* Includes the CZipMemFile class.
+*
+*/
+#if !defined(ZIPARCHIVE_ZIPMEMFILE_DOT_H)
+#define ZIPARCHIVE_ZIPMEMFILE_DOT_H
+
+#if _MSC_VER > 1000
+#pragma once
+#endif
+
+#include "ZipAbstractFile.h"
+#include "ZipString.h"
+#include "ZipExport.h"
+
+/**
+	Represents a file in memory.
+	Automatically grows when necessary.
+*/
+class ZIP_API CZipMemFile : public CZipAbstractFile
+{
+protected:
+	size_t m_nGrowBy, m_nPos;
+	size_t m_nBufSize, m_nDataSize;
+	BYTE* m_lpBuf;
+	bool m_bAutoDelete;
+	void Free()
+	{
+		if (m_lpBuf)
+		{
+			free(m_lpBuf);
+			m_lpBuf = NULL;
+		}
+	}
+	void Init()
+	{
+		m_nGrowBy = m_nPos = 0;
+		m_nBufSize = m_nDataSize = 0;
+		m_lpBuf = NULL;
+
+	}
+	void Grow(size_t nBytes);
+public:
+	bool IsClosed() const { return m_lpBuf == NULL;}
+	void Flush(){}
+
+	ZIP_FILE_USIZE Seek(ZIP_FILE_SIZE lOff, int nFrom);
+	ZIP_FILE_USIZE GetLength() const {return m_nDataSize;}
+	void Write(const void* lpBuf, UINT nCount);
+	UINT Read(void* lpBuf, UINT nCount);
+	void SetLength(ZIP_FILE_USIZE nNewLen);
+	CZipString GetFilePath() const  {return _T("");} 	
+	CZipMemFile(long nGrowBy = 1024)
+	{
+		Init();
+		m_nGrowBy = nGrowBy;
+		m_bAutoDelete = true;
+	}
+
+	
+
+	CZipMemFile(BYTE* lpBuf, UINT nBufSize, long nGrowBy = 0)
+	{
+		Init();
+		Attach(lpBuf, nBufSize, nGrowBy);
+	}
+
+	CZipMemFile(CZipMemFile& from)
+	{
+		Copy(from);
+	}
+
+	void Copy(CZipMemFile& from)
+	{
+		SetLength(from.m_nDataSize);
+		from.Read(m_lpBuf, (UINT)from.m_nDataSize);
+	}
+
+	ZIP_FILE_USIZE GetPosition() const {	return m_nPos;}
+	void Attach(BYTE* lpBuf, UINT nBufSize, long nGrowBy = 0)
+	{
+		Close();
+		m_lpBuf = lpBuf;
+		m_nGrowBy = nGrowBy;
+		m_nBufSize = nBufSize;
+		m_nDataSize = nGrowBy == 0 ? nBufSize : 0;
+		m_bAutoDelete = false;
+	}
+
+	void ReInit(long nGrowBy = 1024)
+	{
+		Close();
+		Init();
+		m_nGrowBy = nGrowBy;
+		m_bAutoDelete = true;
+	}
+
+	BYTE* Detach()
+	{
+		BYTE* b = m_lpBuf;
+		Init();
+		return b;
+	}
+	void Close()
+	{
+		if (m_bAutoDelete)
+			Free();
+		Init();
+	}
+	virtual ~CZipMemFile(){Close();}
+
+};
+
+#endif // !defined(ZIPARCHIVE_ZIPMEMFILE_DOT_H)