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