1 files changed, 43 insertions, 0 deletions
diff --git a/zip/ZipArchive/ZipExtraData.cpp b/zip/ZipArchive/ZipExtraData.cpp
new file mode 100644
index 0000000..8712234
--- /dev/null
+++ b/zip/ZipArchive/ZipExtraData.cpp
@@ -0,0 +1,43 @@
+////////////////////////////////////////////////////////////////////////////////
+// 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
+////////////////////////////////////////////////////////////////////////////////
+
+#include "stdafx.h"
+#include "ZipArchive.h"
+#include "ZipExtraData.h"
+#include "BytesWriter.h"
+
+using namespace ZipArchiveLib;
+
+bool CZipExtraData::Read(char* buffer, WORD uSize)
+{
+	if (uSize < 4)
+			return false;
+	WORD size;
+	CBytesWriter::ReadBytes(m_uHeaderID, buffer);
+	CBytesWriter::ReadBytes(size, buffer + 2);
+	if (uSize - 4 < size)
+		return false;
+	m_data.Allocate(size);
+	memcpy(m_data, buffer + 4, size);
+	return true;
+}
+
+WORD CZipExtraData::Write(char* buffer)const
+{
+	CBytesWriter::WriteBytes(buffer, m_uHeaderID);
+	WORD size = (WORD)m_data.GetSize();
+	CBytesWriter::WriteBytes(buffer + 2, size);
+	memcpy(buffer + 4, m_data, size);
+	return (WORD)(size + 4);
+}