added Zip to trunk

Zip/src/ZipArchiveInfo.cpp

@@ -0,0 +1,106 @@
+//
+// ZipArchiveInfo.cpp
+//
+// $Id: //poco/1.3/Zip/src/ZipArchiveInfo.cpp#3 $
+//
+// Library: Zip
+// Package: Zip
+// Module:  ZipArchiveInfo
+//
+// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#include "Poco/Zip/ZipArchiveInfo.h"
+#include "Poco/Buffer.h"
+#include <istream>
+#include <cstring>
+
+
+namespace Poco {
+namespace Zip {
+
+
+const char ZipArchiveInfo::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x05', '\x06'};
+
+
+ZipArchiveInfo::ZipArchiveInfo(std::istream& in, bool assumeHeaderRead):
+	_rawInfo(),
+	_startPos(in.tellg()),
+	_comment()
+{
+	if (assumeHeaderRead)
+		_startPos -= ZipCommon::HEADER_SIZE;
+	parse(in, assumeHeaderRead);
+}
+
+ZipArchiveInfo::ZipArchiveInfo():
+	_rawInfo(),
+	_startPos(0),
+	_comment()
+{
+	std::memset(_rawInfo, 0, FULLHEADER_SIZE);
+	std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
+}
+
+
+ZipArchiveInfo::~ZipArchiveInfo()
+{
+}
+
+
+void ZipArchiveInfo::parse(std::istream& inp, bool assumeHeaderRead)
+{
+	if (!assumeHeaderRead)
+	{
+		inp.read(_rawInfo, ZipCommon::HEADER_SIZE);
+	}
+	else
+	{
+		std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
+	}
+	poco_assert (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) == 0);
+	// read the rest of the header
+	inp.read(_rawInfo + ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
+	Poco::UInt16 len = getZipCommentSize();
+	if (len > 0)
+	{
+		Poco::Buffer<char> buf(len);
+		inp.read(buf.begin(), len);
+		_comment = std::string(buf.begin(), len);
+	}
+}
+
+
+std::string ZipArchiveInfo::createHeader() const
+{
+	std::string result(_rawInfo, FULLHEADER_SIZE);
+	result.append(_comment);
+	return result;
+}
+
+
+} } // namespace Poco::Zip