mirror of
https://github.com/Xevion/easy7zip.git
synced 2025-12-08 14:07:00 -06:00
88 lines
2.1 KiB
C++
Executable File
88 lines
2.1 KiB
C++
Executable File
// Archive/ZipIn.h
|
|
|
|
#ifndef __ZIP_IN_H
|
|
#define __ZIP_IN_H
|
|
|
|
#include "Common/MyCom.h"
|
|
#include "../../IStream.h"
|
|
|
|
#include "ZipHeader.h"
|
|
#include "ZipItemEx.h"
|
|
|
|
namespace NArchive {
|
|
namespace NZip {
|
|
|
|
class CInArchiveException
|
|
{
|
|
public:
|
|
enum ECauseType
|
|
{
|
|
kUnexpectedEndOfArchive = 0,
|
|
kArchiceHeaderCRCError,
|
|
kFileHeaderCRCError,
|
|
kIncorrectArchive,
|
|
kDataDescroptorsAreNotSupported,
|
|
kMultiVolumeArchiveAreNotSupported,
|
|
kReadStreamError,
|
|
kSeekStreamError
|
|
}
|
|
Cause;
|
|
CInArchiveException(ECauseType cause): Cause(cause) {}
|
|
};
|
|
|
|
class CInArchiveInfo
|
|
{
|
|
public:
|
|
UInt64 StartPosition;
|
|
CByteBuffer Comment;
|
|
void Clear() { Comment.SetCapacity(0); }
|
|
};
|
|
|
|
class CProgressVirt
|
|
{
|
|
public:
|
|
STDMETHOD(SetCompleted)(const UInt64 *numFiles) PURE;
|
|
};
|
|
|
|
class CInArchive
|
|
{
|
|
CMyComPtr<IInStream> m_Stream;
|
|
UInt32 m_Signature;
|
|
UInt64 m_StreamStartPosition;
|
|
UInt64 m_Position;
|
|
CInArchiveInfo m_ArchiveInfo;
|
|
AString m_NameBuffer;
|
|
|
|
bool FindAndReadMarker(const UInt64 *searchHeaderSizeLimit);
|
|
bool ReadUInt32(UInt32 &signature);
|
|
AString ReadFileName(UInt32 nameSize);
|
|
|
|
HRESULT ReadBytes(void *data, UInt32 size, UInt32 *processedSize);
|
|
bool ReadBytesAndTestSize(void *data, UInt32 size);
|
|
void SafeReadBytes(void *data, UInt32 size);
|
|
void ReadBuffer(CByteBuffer &buffer, UInt32 size);
|
|
Byte ReadByte();
|
|
UInt16 ReadUInt16();
|
|
UInt32 ReadUInt32();
|
|
UInt64 ReadUInt64();
|
|
|
|
void IncreaseRealPosition(UInt64 addValue);
|
|
void ThrowIncorrectArchiveException();
|
|
|
|
void ReadExtra(UInt32 extraSize, CExtraBlock &extraBlock,
|
|
UInt64 &unpackSize, UInt64 &packSize, UInt64 &localHeaderOffset, UInt32 &diskStartNumber);
|
|
public:
|
|
HRESULT ReadHeaders(CObjectVector<CItemEx> &items, CProgressVirt *progress);
|
|
bool Open(IInStream *inStream, const UInt64 *searchHeaderSizeLimit);
|
|
void Close();
|
|
void GetArchiveInfo(CInArchiveInfo &archiveInfo) const;
|
|
void DirectGetBytes(void *data, UInt32 num);
|
|
bool SeekInArchive(UInt64 position);
|
|
ISequentialInStream *CreateLimitedStream(UInt64 position, UInt64 size);
|
|
IInStream* CreateStream();
|
|
};
|
|
|
|
}}
|
|
|
|
#endif
|