void CZipCentralDir::ReadHeaders()
{
if (!m_pStorage->IsBinarySplit())
m_pStorage->Seek(m_pInfo->m_uOffset);
else
m_pStorage->SeekInBinary(m_pInfo->m_uOffset, true);
RemoveHeaders(); //just in case
for (ZIP_INDEX_TYPE i = 0; i < m_pInfo->m_uEntriesNumber; i++)
{
CZipFileHeader* pHeader = new CZipFileHeader(this);
m_pHeaders->Add(pHeader);
if (!pHeader->Read(true))
ThrowError(CZipException::badZipFile);
}
if (m_specialFlags.IsSetAny(CZipArchive::sfExhaustiveRead))
{
ZIP_FILE_USIZE uPosition = m_pStorage->GetPosition();
// different offset, or different parts
if (uPosition != m_pInfo->m_uEndOffset || (m_pStorage->IsSegmented() && !m_pStorage->IsBinarySplit() && m_pStorage->GetCurrentVolume() != m_pInfo->m_uLastVolume))
for(;;)
{
CZipAutoBuffer buf(4);
m_pStorage->Read(buf, 4, true);
if (!CZipFileHeader::VerifySignature(buf))
break;
CZipFileHeader* pHeader = new CZipFileHeader(this);
m_pHeaders->Add(pHeader);
if (!pHeader->Read(false))
ThrowError(CZipException::badZipFile);
}
}
// this is necessary when removing data descriptors, CZipArchive::MakeSpaceForReplace, deleting, replacing or encrypting files
// sort always, to yield the same results in requesting files by index regardless of the reason for opening
m_pHeaders->Sort(CompareHeaders);
RebuildFindFastArray();
}
void CZipCentralDir::ReadHeaders()
{
m_pStorage->m_pFile->Seek(m_info.m_uOffset + m_info.m_uBytesBeforeZip, CZipAbstractFile::begin);
RemoveHeaders(); //just in case
for (int i = 0; i < m_info.m_uEntriesNumber; i++)
{
CZipFileHeader* pHeader = new CZipFileHeader;
m_headers.Add(pHeader);
if (!pHeader->Read(m_pStorage))
ThrowError(CZipException::badZipFile);
ConvertFileName(true, true, pHeader);
}
SortHeaders(); // this is necessary when deleting files and removing data descriptors
if (m_bFindFastEnabled)
BuildFindFastArray(m_bCaseSensitive);
}
