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-rw-r--r--src/libs/7zip/win/CPP/7zip/Archive/Iso/IsoIn.cpp453
1 files changed, 0 insertions, 453 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Archive/Iso/IsoIn.cpp b/src/libs/7zip/win/CPP/7zip/Archive/Iso/IsoIn.cpp
deleted file mode 100644
index 7ed618d29..000000000
--- a/src/libs/7zip/win/CPP/7zip/Archive/Iso/IsoIn.cpp
+++ /dev/null
@@ -1,453 +0,0 @@
-// Archive/IsoIn.cpp
-
-#include "StdAfx.h"
-
-#include "IsoIn.h"
-
-#include "../../Common/StreamUtils.h"
-
-namespace NArchive {
-namespace NIso {
-
-Byte CInArchive::ReadByte()
-{
- if (m_BufferPos >= BlockSize)
- m_BufferPos = 0;
- if (m_BufferPos == 0)
- {
- size_t processedSize = BlockSize;
- if (ReadStream(_stream, m_Buffer, &processedSize) != S_OK)
- throw 1;
- if (processedSize != BlockSize)
- throw 1;
- }
- Byte b = m_Buffer[m_BufferPos++];
- _position++;
- return b;
-}
-
-void CInArchive::ReadBytes(Byte *data, UInt32 size)
-{
- for (UInt32 i = 0; i < size; i++)
- data[i] = ReadByte();
-}
-
-void CInArchive::Skip(size_t size)
-{
- while (size-- != 0)
- ReadByte();
-}
-
-void CInArchive::SkipZeros(size_t size)
-{
- while (size-- != 0)
- {
- Byte b = ReadByte();
- if (b != 0)
- throw 1;
- }
-}
-
-UInt16 CInArchive::ReadUInt16Spec()
-{
- UInt16 value = 0;
- for (int i = 0; i < 2; i++)
- value |= ((UInt16)(ReadByte()) << (8 * i));
- return value;
-}
-
-
-UInt16 CInArchive::ReadUInt16()
-{
- Byte b[4];
- ReadBytes(b, 4);
- UInt32 value = 0;
- for (int i = 0; i < 2; i++)
- {
- if (b[i] != b[3 - i])
- IncorrectBigEndian = true;
- value |= ((UInt16)(b[i]) << (8 * i));
- }
- return (UInt16)value;
-}
-
-UInt32 CInArchive::ReadUInt32Le()
-{
- UInt32 value = 0;
- for (int i = 0; i < 4; i++)
- value |= ((UInt32)(ReadByte()) << (8 * i));
- return value;
-}
-
-UInt32 CInArchive::ReadUInt32Be()
-{
- UInt32 value = 0;
- for (int i = 0; i < 4; i++)
- {
- value <<= 8;
- value |= ReadByte();
- }
- return value;
-}
-
-UInt32 CInArchive::ReadUInt32()
-{
- Byte b[8];
- ReadBytes(b, 8);
- UInt32 value = 0;
- for (int i = 0; i < 4; i++)
- {
- if (b[i] != b[7 - i])
- throw 1;
- value |= ((UInt32)(b[i]) << (8 * i));
- }
- return value;
-}
-
-UInt32 CInArchive::ReadDigits(int numDigits)
-{
- UInt32 res = 0;
- for (int i = 0; i < numDigits; i++)
- {
- Byte b = ReadByte();
- if (b < '0' || b > '9')
- {
- if (b == 0) // it's bug in some CD's
- b = '0';
- else
- throw 1;
- }
- UInt32 d = (UInt32)(b - '0');
- res *= 10;
- res += d;
- }
- return res;
-}
-
-void CInArchive::ReadDateTime(CDateTime &d)
-{
- d.Year = (UInt16)ReadDigits(4);
- d.Month = (Byte)ReadDigits(2);
- d.Day = (Byte)ReadDigits(2);
- d.Hour = (Byte)ReadDigits(2);
- d.Minute = (Byte)ReadDigits(2);
- d.Second = (Byte)ReadDigits(2);
- d.Hundredths = (Byte)ReadDigits(2);
- d.GmtOffset = (signed char)ReadByte();
-}
-
-void CInArchive::ReadBootRecordDescriptor(CBootRecordDescriptor &d)
-{
- ReadBytes(d.BootSystemId, sizeof(d.BootSystemId));
- ReadBytes(d.BootId, sizeof(d.BootId));
- ReadBytes(d.BootSystemUse, sizeof(d.BootSystemUse));
-}
-
-void CInArchive::ReadRecordingDateTime(CRecordingDateTime &t)
-{
- t.Year = ReadByte();
- t.Month = ReadByte();
- t.Day = ReadByte();
- t.Hour = ReadByte();
- t.Minute = ReadByte();
- t.Second = ReadByte();
- t.GmtOffset = (signed char)ReadByte();
-}
-
-void CInArchive::ReadDirRecord2(CDirRecord &r, Byte len)
-{
- r.ExtendedAttributeRecordLen = ReadByte();
- if (r.ExtendedAttributeRecordLen != 0)
- throw 1;
- r.ExtentLocation = ReadUInt32();
- r.DataLength = ReadUInt32();
- ReadRecordingDateTime(r.DateTime);
- r.FileFlags = ReadByte();
- r.FileUnitSize = ReadByte();
- r.InterleaveGapSize = ReadByte();
- r.VolSequenceNumber = ReadUInt16();
- Byte idLen = ReadByte();
- r.FileId.SetCapacity(idLen);
- ReadBytes((Byte *)r.FileId, idLen);
- int padSize = 1 - (idLen & 1);
-
- // SkipZeros(1 - (idLen & 1));
- Skip(1 - (idLen & 1)); // it's bug in some cd's. Must be zeros
-
- int curPos = 33 + idLen + padSize;
- if (curPos > len)
- throw 1;
- int rem = len - curPos;
- r.SystemUse.SetCapacity(rem);
- ReadBytes((Byte *)r.SystemUse, rem);
-}
-
-void CInArchive::ReadDirRecord(CDirRecord &r)
-{
- Byte len = ReadByte();
- // Some CDs can have incorrect value len = 48 ('0') in VolumeDescriptor.
- // But maybe we must use real "len" for other records.
- len = 34;
- ReadDirRecord2(r, len);
-}
-
-void CInArchive::ReadVolumeDescriptor(CVolumeDescriptor &d)
-{
- d.VolFlags = ReadByte();
- ReadBytes(d.SystemId, sizeof(d.SystemId));
- ReadBytes(d.VolumeId, sizeof(d.VolumeId));
- SkipZeros(8);
- d.VolumeSpaceSize = ReadUInt32();
- ReadBytes(d.EscapeSequence, sizeof(d.EscapeSequence));
- d.VolumeSetSize = ReadUInt16();
- d.VolumeSequenceNumber = ReadUInt16();
- d.LogicalBlockSize = ReadUInt16();
- d.PathTableSize = ReadUInt32();
- d.LPathTableLocation = ReadUInt32Le();
- d.LOptionalPathTableLocation = ReadUInt32Le();
- d.MPathTableLocation = ReadUInt32Be();
- d.MOptionalPathTableLocation = ReadUInt32Be();
- ReadDirRecord(d.RootDirRecord);
- ReadBytes(d.VolumeSetId, sizeof(d.VolumeSetId));
- ReadBytes(d.PublisherId, sizeof(d.PublisherId));
- ReadBytes(d.DataPreparerId, sizeof(d.DataPreparerId));
- ReadBytes(d.ApplicationId, sizeof(d.ApplicationId));
- ReadBytes(d.CopyrightFileId, sizeof(d.CopyrightFileId));
- ReadBytes(d.AbstractFileId, sizeof(d.AbstractFileId));
- ReadBytes(d.BibFileId, sizeof(d.BibFileId));
- ReadDateTime(d.CTime);
- ReadDateTime(d.MTime);
- ReadDateTime(d.ExpirationTime);
- ReadDateTime(d.EffectiveTime);
- d.FileStructureVersion = ReadByte(); // = 1
- SkipZeros(1);
- ReadBytes(d.ApplicationUse, sizeof(d.ApplicationUse));
- SkipZeros(653);
-}
-
-static const Byte kSig_CD001[5] = { 'C', 'D', '0', '0', '1' };
-
-static const Byte kSig_NSR02[5] = { 'N', 'S', 'R', '0', '2' };
-static const Byte kSig_NSR03[5] = { 'N', 'S', 'R', '0', '3' };
-static const Byte kSig_BEA01[5] = { 'B', 'E', 'A', '0', '1' };
-static const Byte kSig_TEA01[5] = { 'T', 'E', 'A', '0', '1' };
-
-static inline bool CheckSignature(const Byte *sig, const Byte *data)
-{
- for (int i = 0; i < 5; i++)
- if (sig[i] != data[i])
- return false;
- return true;
-}
-
-void CInArchive::SeekToBlock(UInt32 blockIndex)
-{
- if (_stream->Seek((UInt64)blockIndex * VolDescs[MainVolDescIndex].LogicalBlockSize, STREAM_SEEK_SET, &_position) != S_OK)
- throw 1;
- m_BufferPos = 0;
-}
-
-void CInArchive::ReadDir(CDir &d, int level)
-{
- if (!d.IsDir())
- return;
- SeekToBlock(d.ExtentLocation);
- UInt64 startPos = _position;
-
- bool firstItem = true;
- for (;;)
- {
- UInt64 offset = _position - startPos;
- if (offset >= d.DataLength)
- break;
- Byte len = ReadByte();
- if (len == 0)
- continue;
- CDir subItem;
- ReadDirRecord2(subItem, len);
- if (firstItem && level == 0)
- IsSusp = subItem.CheckSusp(SuspSkipSize);
-
- if (!subItem.IsSystemItem())
- d._subItems.Add(subItem);
-
- firstItem = false;
- }
- for (int i = 0; i < d._subItems.Size(); i++)
- ReadDir(d._subItems[i], level + 1);
-}
-
-void CInArchive::CreateRefs(CDir &d)
-{
- if (!d.IsDir())
- return;
- for (int i = 0; i < d._subItems.Size(); i++)
- {
- CRef ref;
- CDir &subItem = d._subItems[i];
- subItem.Parent = &d;
- ref.Dir = &d;
- ref.Index = i;
- Refs.Add(ref);
- CreateRefs(subItem);
- }
-}
-
-void CInArchive::ReadBootInfo()
-{
- if (!_bootIsDefined)
- return;
- if (memcmp(_bootDesc.BootSystemId, kElToritoSpec, sizeof(_bootDesc.BootSystemId)) != 0)
- return;
-
- const Byte *p = (const Byte *)_bootDesc.BootSystemUse;
- UInt32 blockIndex = p[0] | ((UInt32)p[1] << 8) | ((UInt32)p[2] << 16) | ((UInt32)p[3] << 24);
- SeekToBlock(blockIndex);
- Byte b = ReadByte();
- if (b != NBootEntryId::kValidationEntry)
- return;
- {
- CBootValidationEntry e;
- e.PlatformId = ReadByte();
- if (ReadUInt16Spec() != 0)
- throw 1;
- ReadBytes(e.Id, sizeof(e.Id));
- /* UInt16 checkSum = */ ReadUInt16Spec();
- if (ReadByte() != 0x55)
- throw 1;
- if (ReadByte() != 0xAA)
- throw 1;
- }
- b = ReadByte();
- if (b == NBootEntryId::kInitialEntryBootable || b == NBootEntryId::kInitialEntryNotBootable)
- {
- CBootInitialEntry e;
- e.Bootable = (b == NBootEntryId::kInitialEntryBootable);
- e.BootMediaType = ReadByte();
- e.LoadSegment = ReadUInt16Spec();
- e.SystemType = ReadByte();
- if (ReadByte() != 0)
- throw 1;
- e.SectorCount = ReadUInt16Spec();
- e.LoadRBA = ReadUInt32Le();
- if (ReadByte() != 0)
- throw 1;
- BootEntries.Add(e);
- }
- else
- return;
-}
-
-HRESULT CInArchive::Open2()
-{
- Clear();
- RINOK(_stream->Seek(kStartPos, STREAM_SEEK_CUR, &_position));
-
- m_BufferPos = 0;
- BlockSize = kBlockSize;
- for (;;)
- {
- Byte sig[7];
- ReadBytes(sig, 7);
- Byte ver = sig[6];
- if (!CheckSignature(kSig_CD001, sig + 1))
- {
- return S_FALSE;
- /*
- if (sig[0] != 0 || ver != 1)
- break;
- if (CheckSignature(kSig_BEA01, sig + 1))
- {
- }
- else if (CheckSignature(kSig_TEA01, sig + 1))
- {
- break;
- }
- else if (CheckSignature(kSig_NSR02, sig + 1))
- {
- }
- else
- break;
- SkipZeros(0x800 - 7);
- continue;
- */
- }
- // version = 2 for ISO 9660:1999?
- if (ver > 2)
- throw S_FALSE;
-
- if (sig[0] == NVolDescType::kTerminator)
- {
- break;
- // Skip(0x800 - 7);
- // continue;
- }
- switch(sig[0])
- {
- case NVolDescType::kBootRecord:
- {
- _bootIsDefined = true;
- ReadBootRecordDescriptor(_bootDesc);
- break;
- }
- case NVolDescType::kPrimaryVol:
- case NVolDescType::kSupplementaryVol:
- {
- // some ISOs have two PrimaryVols.
- CVolumeDescriptor vd;
- ReadVolumeDescriptor(vd);
- if (sig[0] == NVolDescType::kPrimaryVol)
- {
- // some burners write "Joliet" Escape Sequence to primary volume
- memset(vd.EscapeSequence, 0, sizeof(vd.EscapeSequence));
- }
- VolDescs.Add(vd);
- break;
- }
- default:
- break;
- }
- }
- if (VolDescs.IsEmpty())
- return S_FALSE;
- for (MainVolDescIndex = VolDescs.Size() - 1; MainVolDescIndex > 0; MainVolDescIndex--)
- if (VolDescs[MainVolDescIndex].IsJoliet())
- break;
- // MainVolDescIndex = 0; // to read primary volume
- const CVolumeDescriptor &vd = VolDescs[MainVolDescIndex];
- if (vd.LogicalBlockSize != kBlockSize)
- return S_FALSE;
- (CDirRecord &)_rootDir = vd.RootDirRecord;
- ReadDir(_rootDir, 0);
- CreateRefs(_rootDir);
- ReadBootInfo();
- return S_OK;
-}
-
-HRESULT CInArchive::Open(IInStream *inStream)
-{
- _stream = inStream;
- UInt64 pos;
- RINOK(_stream->Seek(0, STREAM_SEEK_CUR, &pos));
- RINOK(_stream->Seek(0, STREAM_SEEK_END, &_archiveSize));
- RINOK(_stream->Seek(pos, STREAM_SEEK_SET, &_position));
- HRESULT res = S_FALSE;
- try { res = Open2(); }
- catch(...) { Clear(); res = S_FALSE; }
- _stream.Release();
- return res;
-}
-
-void CInArchive::Clear()
-{
- IncorrectBigEndian = false;
- Refs.Clear();
- _rootDir.Clear();
- VolDescs.Clear();
- _bootIsDefined = false;
- BootEntries.Clear();
- SuspSkipSize = 0;
- IsSusp = false;
-}
-
-}}