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// TarItem.h
#ifndef __ARCHIVE_TAR_ITEM_H
#define __ARCHIVE_TAR_ITEM_H
#include "../Common/ItemNameUtils.h"
#include "TarHeader.h"
namespace NArchive {
namespace NTar {
struct CSparseBlock
{
UInt64 Offset;
UInt64 Size;
};
struct CItem
{
AString Name;
UInt64 PackSize;
UInt64 Size;
Int64 MTime;
UInt32 Mode;
UInt32 UID;
UInt32 GID;
UInt32 DeviceMajor;
UInt32 DeviceMinor;
AString LinkName;
AString User;
AString Group;
char Magic[8];
char LinkFlag;
bool DeviceMajorDefined;
bool DeviceMinorDefined;
CRecordVector<CSparseBlock> SparseBlocks;
bool IsSymLink() const { return LinkFlag == NFileHeader::NLinkFlag::kSymLink && (Size == 0); }
bool IsHardLink() const { return LinkFlag == NFileHeader::NLinkFlag::kHardLink; }
bool IsSparse() const { return LinkFlag == NFileHeader::NLinkFlag::kSparse; }
UInt64 GetUnpackSize() const { return IsSymLink() ? LinkName.Len() : Size; }
bool IsPaxExtendedHeader() const
{
switch (LinkFlag)
{
case 'g':
case 'x':
case 'X': // Check it
return true;
}
return false;
}
bool IsDir() const
{
switch (LinkFlag)
{
case NFileHeader::NLinkFlag::kDirectory:
case NFileHeader::NLinkFlag::kDumpDir:
return true;
case NFileHeader::NLinkFlag::kOldNormal:
case NFileHeader::NLinkFlag::kNormal:
case NFileHeader::NLinkFlag::kSymLink:
return NItemName::HasTailSlash(Name, CP_OEMCP);
}
return false;
}
bool IsUstarMagic() const
{
for (int i = 0; i < 5; i++)
if (Magic[i] != NFileHeader::NMagic::kUsTar_00[i])
return false;
return true;
}
UInt64 GetPackSizeAligned() const { return (PackSize + 0x1FF) & (~((UInt64)0x1FF)); }
};
struct CItemEx: public CItem
{
UInt64 HeaderPos;
unsigned HeaderSize;
bool NameCouldBeReduced;
bool LinkNameCouldBeReduced;
UInt64 GetDataPosition() const { return HeaderPos + HeaderSize; }
UInt64 GetFullSize() const { return HeaderSize + PackSize; }
};
}}
#endif
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