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107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
//
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// ZipDataInfo.cpp
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//
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// Library: Zip
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// Package: Zip
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// Module: ZipDataInfo
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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/ZipDataInfo.h"
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#include "Poco/Exception.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 ZipDataInfo::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x07', '\x08'};
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ZipDataInfo::ZipDataInfo():
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_rawInfo(),
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_valid(true)
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{
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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std::memset(_rawInfo+ZipCommon::HEADER_SIZE, 0, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
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_valid = true;
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}
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ZipDataInfo::ZipDataInfo(std::istream& in, bool assumeHeaderRead):
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_rawInfo(),
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_valid(false)
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{
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if (assumeHeaderRead)
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{
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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}
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else
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{
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in.read(_rawInfo, ZipCommon::HEADER_SIZE);
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if (in.gcount() != ZipCommon::HEADER_SIZE)
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throw Poco::IOException("Failed to read data info header");
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if (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) != 0)
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throw Poco::DataFormatException("Bad data info header");
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}
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// now copy the rest of the header
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in.read(_rawInfo+ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
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_valid = (!in.eof() && in.good());
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}
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ZipDataInfo::~ZipDataInfo()
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{
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}
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const char ZipDataInfo64::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x07', '\x08'};
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ZipDataInfo64::ZipDataInfo64():
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_rawInfo(),
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_valid(true)
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{
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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std::memset(_rawInfo+ZipCommon::HEADER_SIZE, 0, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
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_valid = true;
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}
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ZipDataInfo64::ZipDataInfo64(std::istream& in, bool assumeHeaderRead):
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_rawInfo(),
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_valid(false)
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{
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if (assumeHeaderRead)
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{
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std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
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}
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else
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{
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in.read(_rawInfo, ZipCommon::HEADER_SIZE);
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if (in.gcount() != ZipCommon::HEADER_SIZE)
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throw Poco::IOException("Failed to read data info header");
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if (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) != 0)
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throw Poco::DataFormatException("Bad data info header");
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}
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// now copy the rest of the header
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in.read(_rawInfo+ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
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_valid = (!in.eof() && in.good());
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}
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ZipDataInfo64::~ZipDataInfo64()
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{
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}
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} } // namespace Poco::Zip
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