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b0581433a7
fix: remove executable flag and change back to 100644 (was 100755) Signed-off-by: Roger Meier <r.meier@siemens.com>
102 lines
2.1 KiB
C++
102 lines
2.1 KiB
C++
//
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// ZipArchiveInfo.cpp
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//
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// $Id: //poco/1.4/Zip/src/ZipArchiveInfo.cpp#1 $
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//
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// Library: Zip
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// Package: Zip
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// Module: ZipArchiveInfo
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//
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// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#include "Poco/Zip/ZipArchiveInfo.h"
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#include "Poco/Zip/ZipException.h"
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#include "Poco/Buffer.h"
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#include <istream>
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#include <cstring>
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namespace Poco {
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namespace Zip {
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const char ZipArchiveInfo::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x05', '\x06'};
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ZipArchiveInfo::ZipArchiveInfo(std::istream& in, bool assumeHeaderRead):
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_rawInfo(),
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_startPos(in.tellg()),
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_comment()
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{
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if (assumeHeaderRead)
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_startPos -= ZipCommon::HEADER_SIZE;
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parse(in, assumeHeaderRead);
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}
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ZipArchiveInfo::ZipArchiveInfo():
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_rawInfo(),
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_startPos(0),
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_comment()
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{
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std::memset(_rawInfo, 0, FULLHEADER_SIZE);
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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}
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ZipArchiveInfo::~ZipArchiveInfo()
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{
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}
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void ZipArchiveInfo::parse(std::istream& inp, bool assumeHeaderRead)
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{
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if (!assumeHeaderRead)
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{
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inp.read(_rawInfo, ZipCommon::HEADER_SIZE);
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}
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else
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{
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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}
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poco_assert (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) == 0);
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// read the rest of the header
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inp.read(_rawInfo + ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
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Poco::UInt16 len = getZipCommentSize();
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if (len > 0)
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{
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Poco::Buffer<char> buf(len);
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inp.read(buf.begin(), len);
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_comment = std::string(buf.begin(), len);
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}
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}
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std::string ZipArchiveInfo::createHeader() const
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{
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std::string result(_rawInfo, FULLHEADER_SIZE);
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result.append(_comment);
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return result;
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}
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void ZipArchiveInfo::setZipComment(const std::string& comment)
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{
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// Confirm string is of valid size
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if (comment.size() > 65535)
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throw ZipException("Maximum number of entries for a ZIP file reached: 65535");
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// Change the value of the ZIP Comment Size to reflect new comment size
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ZipUtil::set16BitValue(static_cast<Poco::UInt16>(comment.size()), _rawInfo, ZIPCOMMENT_LENGTH_POS);
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// Now change our internal comment
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_comment = comment;
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}
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} } // namespace Poco::Zip
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