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ZipDataInfo.cpp
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106 lines (83 loc) · 2.32 KB
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//
// ZipDataInfo.cpp
//
// Library: Zip
// Package: Zip
// Module: ZipDataInfo
//
// Copyright (c) 2007, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Zip/ZipDataInfo.h"
#include "Poco/Exception.h"
#include <istream>
#include <cstring>
namespace Poco {
namespace Zip {
const char ZipDataInfo::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x07', '\x08'};
ZipDataInfo::ZipDataInfo():
_rawInfo(),
_valid(true)
{
std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
std::memset(_rawInfo+ZipCommon::HEADER_SIZE, 0, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
_valid = true;
}
ZipDataInfo::ZipDataInfo(std::istream& in, bool assumeHeaderRead):
_rawInfo(),
_valid(false)
{
if (assumeHeaderRead)
{
std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
}
else
{
in.read(_rawInfo, ZipCommon::HEADER_SIZE);
if (in.gcount() != ZipCommon::HEADER_SIZE)
throw Poco::IOException("Failed to read data info header");
if (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) != 0)
throw Poco::DataFormatException("Bad data info header");
}
// now copy the rest of the header
in.read(_rawInfo+ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
_valid = (!in.eof() && in.good());
}
ZipDataInfo::~ZipDataInfo()
{
}
const char ZipDataInfo64::HEADER[ZipCommon::HEADER_SIZE] = {'\x50', '\x4b', '\x07', '\x08'};
ZipDataInfo64::ZipDataInfo64():
_rawInfo(),
_valid(true)
{
std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
std::memset(_rawInfo+ZipCommon::HEADER_SIZE, 0, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
_valid = true;
}
ZipDataInfo64::ZipDataInfo64(std::istream& in, bool assumeHeaderRead):
_rawInfo(),
_valid(false)
{
if (assumeHeaderRead)
{
std::memcpy(_rawInfo, HEADER, ZipCommon::HEADER_SIZE);
}
else
{
in.read(_rawInfo, ZipCommon::HEADER_SIZE);
if (in.gcount() != ZipCommon::HEADER_SIZE)
throw Poco::IOException("Failed to read data info header");
if (std::memcmp(_rawInfo, HEADER, ZipCommon::HEADER_SIZE) != 0)
throw Poco::DataFormatException("Bad data info header");
}
// now copy the rest of the header
in.read(_rawInfo+ZipCommon::HEADER_SIZE, FULLHEADER_SIZE - ZipCommon::HEADER_SIZE);
_valid = (!in.eof() && in.good());
}
ZipDataInfo64::~ZipDataInfo64()
{
}
} } // namespace Poco::Zip