diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/7zip/Archive/Com/ComIn.cpp')
| -rw-r--r-- | src/libs/7zip/win/CPP/7zip/Archive/Com/ComIn.cpp | 389 |
1 files changed, 0 insertions, 389 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Archive/Com/ComIn.cpp b/src/libs/7zip/win/CPP/7zip/Archive/Com/ComIn.cpp deleted file mode 100644 index 2203ca531..000000000 --- a/src/libs/7zip/win/CPP/7zip/Archive/Com/ComIn.cpp +++ /dev/null @@ -1,389 +0,0 @@ -// Archive/ComIn.cpp - -#include "StdAfx.h" - -#include "../../../../C/Alloc.h" -#include "../../../../C/CpuArch.h" - -#include "Common/IntToString.h" -#include "Common/MyCom.h" - -#include "../../Common/StreamUtils.h" - -#include "ComIn.h" - -#define Get16(p) GetUi16(p) -#define Get32(p) GetUi32(p) - -namespace NArchive{ -namespace NCom{ - -static const UInt32 kSignatureSize = 8; -static const Byte kSignature[kSignatureSize] = { 0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1 }; - -void CUInt32Buf::Free() -{ - MyFree(_buf); - _buf = 0; -} - -bool CUInt32Buf::Allocate(UInt32 numItems) -{ - Free(); - if (numItems == 0) - return true; - size_t newSize = (size_t)numItems * sizeof(UInt32); - if (newSize / sizeof(UInt32) != numItems) - return false; - _buf = (UInt32 *)MyAlloc(newSize); - return (_buf != 0); -} - -static HRESULT ReadSector(IInStream *inStream, Byte *buf, int sectorSizeBits, UInt32 sid) -{ - RINOK(inStream->Seek((((UInt64)sid + 1) << sectorSizeBits), STREAM_SEEK_SET, NULL)); - return ReadStream_FALSE(inStream, buf, (UInt32)1 << sectorSizeBits); -} - -static HRESULT ReadIDs(IInStream *inStream, Byte *buf, int sectorSizeBits, UInt32 sid, UInt32 *dest) -{ - RINOK(ReadSector(inStream, buf, sectorSizeBits, sid)); - UInt32 sectorSize = (UInt32)1 << sectorSizeBits; - for (UInt32 t = 0; t < sectorSize; t += 4) - *dest++ = Get32(buf + t); - return S_OK; -} - -static void GetFileTimeFromMem(const Byte *p, FILETIME *ft) -{ - ft->dwLowDateTime = Get32(p); - ft->dwHighDateTime = Get32(p + 4); -} - -void CItem::Parse(const Byte *p, bool mode64bit) -{ - memcpy(Name, p, kNameSizeMax); - // NameSize = Get16(p + 64); - Type = p[66]; - LeftDid = Get32(p + 68); - RightDid = Get32(p + 72); - SonDid = Get32(p + 76); - // Flags = Get32(p + 96); - GetFileTimeFromMem(p + 100, &CTime); - GetFileTimeFromMem(p + 108, &MTime); - Sid = Get32(p + 116); - Size = Get32(p + 120); - if (mode64bit) - Size |= ((UInt64)Get32(p + 124) << 32); -} - -void CDatabase::Clear() -{ - Fat.Free(); - MiniSids.Free(); - Mat.Free(); - Items.Clear(); - Refs.Clear(); -} - -static const UInt32 kNoDid = 0xFFFFFFFF; - -HRESULT CDatabase::AddNode(int parent, UInt32 did) -{ - if (did == kNoDid) - return S_OK; - if (did >= (UInt32)Items.Size()) - return S_FALSE; - const CItem &item = Items[did]; - if (item.IsEmpty()) - return S_FALSE; - CRef ref; - ref.Parent = parent; - ref.Did = did; - int index = Refs.Add(ref); - if (Refs.Size() > Items.Size()) - return S_FALSE; - RINOK(AddNode(parent, item.LeftDid)); - RINOK(AddNode(parent, item.RightDid)); - if (item.IsDir()) - { - RINOK(AddNode(index, item.SonDid)); - } - return S_OK; -} - -static const char kCharOpenBracket = '['; -static const char kCharCloseBracket = ']'; - -static UString CompoundNameToFileName(const UString &s) -{ - UString res; - for (int i = 0; i < s.Length(); i++) - { - wchar_t c = s[i]; - if (c < 0x20) - { - res += kCharOpenBracket; - wchar_t buf[32]; - ConvertUInt32ToString(c, buf); - res += buf; - res += kCharCloseBracket; - } - else - res += c; - } - return res; -} - -static char g_MsiChars[] = -"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._"; - -static const wchar_t *kMsi_ID = L""; // L"{msi}"; - -static const int kMsiNumBits = 6; -static const UInt32 kMsiNumChars = 1 << kMsiNumBits; -static const UInt32 kMsiCharMask = kMsiNumChars - 1; -static const UInt32 kMsiStartUnicodeChar = 0x3800; -static const UInt32 kMsiUnicodeRange = kMsiNumChars * (kMsiNumChars + 1); - -bool CompoundMsiNameToFileName(const UString &name, UString &resultName) -{ - resultName.Empty(); - for (int i = 0; i < name.Length(); i++) - { - wchar_t c = name[i]; - if (c < kMsiStartUnicodeChar || c > kMsiStartUnicodeChar + kMsiUnicodeRange) - return false; - if (i == 0) - resultName += kMsi_ID; - c -= kMsiStartUnicodeChar; - - UInt32 c0 = c & kMsiCharMask; - UInt32 c1 = c >> kMsiNumBits; - - if (c1 <= kMsiNumChars) - { - resultName += (wchar_t)g_MsiChars[c0]; - if (c1 == kMsiNumChars) - break; - resultName += (wchar_t)g_MsiChars[c1]; - } - else - resultName += L'!'; - } - return true; -} - -static UString ConvertName(const Byte *p, bool &isMsi) -{ - isMsi = false; - UString s; - for (int i = 0; i < kNameSizeMax; i += 2) - { - wchar_t c = (p[i] | (wchar_t)p[i + 1] << 8); - if (c == 0) - break; - s += c; - } - UString msiName; - if (CompoundMsiNameToFileName(s, msiName)) - { - isMsi = true; - return msiName; - } - return CompoundNameToFileName(s); -} - -static UString ConvertName(const Byte *p) -{ - bool isMsi; - return ConvertName(p, isMsi); -} - -UString CDatabase::GetItemPath(UInt32 index) const -{ - UString s; - while (index != kNoDid) - { - const CRef &ref = Refs[index]; - const CItem &item = Items[ref.Did]; - if (!s.IsEmpty()) - s = (UString)WCHAR_PATH_SEPARATOR + s; - s = ConvertName(item.Name) + s; - index = ref.Parent; - } - return s; -} - -HRESULT CDatabase::Open(IInStream *inStream) -{ - MainSubfile = -1; - static const UInt32 kHeaderSize = 512; - Byte p[kHeaderSize]; - RINOK(ReadStream_FALSE(inStream, p, kHeaderSize)); - if (memcmp(p, kSignature, kSignatureSize) != 0) - return S_FALSE; - if (Get16(p + 0x1A) > 4) // majorVer - return S_FALSE; - if (Get16(p + 0x1C) != 0xFFFE) - return S_FALSE; - int sectorSizeBits = Get16(p + 0x1E); - bool mode64bit = (sectorSizeBits >= 12); - int miniSectorSizeBits = Get16(p + 0x20); - SectorSizeBits = sectorSizeBits; - MiniSectorSizeBits = miniSectorSizeBits; - - if (sectorSizeBits > 28 || miniSectorSizeBits > 28 || - sectorSizeBits < 7 || miniSectorSizeBits < 2 || miniSectorSizeBits > sectorSizeBits) - return S_FALSE; - UInt32 numSectorsForFAT = Get32(p + 0x2C); - LongStreamMinSize = Get32(p + 0x38); - - UInt32 sectSize = (UInt32)1 << (int)sectorSizeBits; - - CByteBuffer sect; - sect.SetCapacity(sectSize); - - int ssb2 = (int)(sectorSizeBits - 2); - UInt32 numSidsInSec = (UInt32)1 << ssb2; - UInt32 numFatItems = numSectorsForFAT << ssb2; - if ((numFatItems >> ssb2) != numSectorsForFAT) - return S_FALSE; - FatSize = numFatItems; - - { - CUInt32Buf bat; - UInt32 numSectorsForBat = Get32(p + 0x48); - const UInt32 kNumHeaderBatItems = 109; - UInt32 numBatItems = kNumHeaderBatItems + (numSectorsForBat << ssb2); - if (numBatItems < kNumHeaderBatItems || ((numBatItems - kNumHeaderBatItems) >> ssb2) != numSectorsForBat) - return S_FALSE; - if (!bat.Allocate(numBatItems)) - return S_FALSE; - UInt32 i; - for (i = 0; i < kNumHeaderBatItems; i++) - bat[i] = Get32(p + 0x4c + i * 4); - UInt32 sid = Get32(p + 0x44); - for (UInt32 s = 0; s < numSectorsForBat; s++) - { - RINOK(ReadIDs(inStream, sect, sectorSizeBits, sid, bat + i)); - i += numSidsInSec - 1; - sid = bat[i]; - } - numBatItems = i; - - if (!Fat.Allocate(numFatItems)) - return S_FALSE; - UInt32 j = 0; - - for (i = 0; i < numFatItems; j++, i += numSidsInSec) - { - if (j >= numBatItems) - return S_FALSE; - RINOK(ReadIDs(inStream, sect, sectorSizeBits, bat[j], Fat + i)); - } - } - - UInt32 numMatItems; - { - UInt32 numSectorsForMat = Get32(p + 0x40); - numMatItems = (UInt32)numSectorsForMat << ssb2; - if ((numMatItems >> ssb2) != numSectorsForMat) - return S_FALSE; - if (!Mat.Allocate(numMatItems)) - return S_FALSE; - UInt32 i; - UInt32 sid = Get32(p + 0x3C); - for (i = 0; i < numMatItems; i += numSidsInSec) - { - RINOK(ReadIDs(inStream, sect, sectorSizeBits, sid, Mat + i)); - if (sid >= numFatItems) - return S_FALSE; - sid = Fat[sid]; - } - if (sid != NFatID::kEndOfChain) - return S_FALSE; - } - - { - UInt32 sid = Get32(p + 0x30); - for (;;) - { - if (sid >= numFatItems) - return S_FALSE; - RINOK(ReadSector(inStream, sect, sectorSizeBits, sid)); - for (UInt32 i = 0; i < sectSize; i += 128) - { - CItem item; - item.Parse(sect + i, mode64bit); - Items.Add(item); - } - sid = Fat[sid]; - if (sid == NFatID::kEndOfChain) - break; - } - } - - CItem root = Items[0]; - - { - UInt32 numSectorsInMiniStream; - { - UInt64 numSatSects64 = (root.Size + sectSize - 1) >> sectorSizeBits; - if (numSatSects64 > NFatID::kMaxValue) - return S_FALSE; - numSectorsInMiniStream = (UInt32)numSatSects64; - } - NumSectorsInMiniStream = numSectorsInMiniStream; - if (!MiniSids.Allocate(numSectorsInMiniStream)) - return S_FALSE; - { - UInt64 matSize64 = (root.Size + ((UInt64)1 << miniSectorSizeBits) - 1) >> miniSectorSizeBits; - if (matSize64 > NFatID::kMaxValue) - return S_FALSE; - MatSize = (UInt32)matSize64; - if (numMatItems < MatSize) - return S_FALSE; - } - - UInt32 sid = root.Sid; - for (UInt32 i = 0; ; i++) - { - if (sid == NFatID::kEndOfChain) - { - if (i != numSectorsInMiniStream) - return S_FALSE; - break; - } - if (i >= numSectorsInMiniStream) - return S_FALSE; - MiniSids[i] = sid; - if (sid >= numFatItems) - return S_FALSE; - sid = Fat[sid]; - } - } - - RINOK(AddNode(-1, root.SonDid)); - - unsigned numCabs = 0; - for (int i = 0; i < Refs.Size(); i++) - { - const CItem &item = Items[Refs[i].Did]; - if (item.IsDir() || numCabs > 1) - continue; - bool isMsiName; - UString msiName = ConvertName(item.Name, isMsiName); - if (isMsiName && msiName.Right(4).CompareNoCase(L".cab") == 0) - { - numCabs++; - MainSubfile = i; - } - } - if (numCabs > 1) - MainSubfile = -1; - - return S_OK; -} - -}} |