diff options
Diffstat (limited to 'src/libs/7zip/win/CPP/Windows/FileIO.cpp')
| -rw-r--r-- | src/libs/7zip/win/CPP/Windows/FileIO.cpp | 430 |
1 files changed, 214 insertions, 216 deletions
diff --git a/src/libs/7zip/win/CPP/Windows/FileIO.cpp b/src/libs/7zip/win/CPP/Windows/FileIO.cpp index 938e6c701..fec859ed3 100644 --- a/src/libs/7zip/win/CPP/Windows/FileIO.cpp +++ b/src/libs/7zip/win/CPP/Windows/FileIO.cpp @@ -2,161 +2,86 @@ #include "StdAfx.h" -#include "FileIO.h" - -#if defined(WIN_LONG_PATH) || defined(SUPPORT_DEVICE_FILE) -#include "../Common/MyString.h" -#endif -#ifndef _UNICODE -#include "../Common/StringConvert.h" +#ifdef SUPPORT_DEVICE_FILE +#include "../../C/Alloc.h" #endif +#include "FileIO.h" +#include "FileName.h" + #ifndef _UNICODE extern bool g_IsNT; #endif +using namespace NWindows; +using namespace NFile; +using namespace NName; + namespace NWindows { namespace NFile { #ifdef SUPPORT_DEVICE_FILE -bool IsDeviceName(LPCTSTR n) -{ - #ifdef UNDER_CE - int len = (int)MyStringLen(n); - if (len < 5 || len > 5 || memcmp(n, TEXT("DSK"), 3 * sizeof(TCHAR)) != 0) - return false; - if (n[4] != ':') - return false; - // for reading use SG_REQ sg; if (DeviceIoControl(dsk, IOCTL_DISK_READ)); - #else - if (n[0] != '\\' || n[1] != '\\' || n[2] != '.' || n[3] != '\\') - return false; - int len = (int)MyStringLen(n); - if (len == 6 && n[5] == ':') - return true; - if (len < 18 || len > 22 || memcmp(n + 4, TEXT("PhysicalDrive"), 13 * sizeof(TCHAR)) != 0) - return false; - for (int i = 17; i < len; i++) - if (n[i] < '0' || n[i] > '9') - return false; - #endif - return true; -} -#ifndef _UNICODE -bool IsDeviceName(LPCWSTR n) +namespace NSystem { - if (n[0] != '\\' || n[1] != '\\' || n[2] != '.' || n[3] != '\\') - return false; - int len = (int)wcslen(n); - if (len == 6 && n[5] == ':') - return true; - if (len < 18 || len > 22 || wcsncmp(n + 4, L"PhysicalDrive", 13) != 0) - return false; - for (int i = 17; i < len; i++) - if (n[i] < '0' || n[i] > '9') - return false; - return true; +bool MyGetDiskFreeSpace(CFSTR rootPath, UInt64 &clusterSize, UInt64 &totalSize, UInt64 &freeSize); } #endif -#endif -#if defined(WIN_LONG_PATH) && defined(_UNICODE) -#define WIN_LONG_PATH2 -#endif - -#ifdef WIN_LONG_PATH -bool GetLongPathBase(LPCWSTR s, UString &res) -{ - res.Empty(); - int len = MyStringLen(s); - wchar_t c = s[0]; - if (len < 1 || c == L'\\' || c == L'.' && (len == 1 || len == 2 && s[1] == L'.')) - return true; - UString curDir; - bool isAbs = false; - if (len > 3) - isAbs = (s[1] == L':' && s[2] == L'\\' && (c >= L'a' && c <= L'z' || c >= L'A' && c <= L'Z')); +namespace NIO { - if (!isAbs) - { - DWORD needLength = ::GetCurrentDirectoryW(MAX_PATH + 1, curDir.GetBuffer(MAX_PATH + 1)); - curDir.ReleaseBuffer(); - if (needLength == 0 || needLength > MAX_PATH) - return false; - if (curDir[curDir.Length() - 1] != L'\\') - curDir += L'\\'; - } - res = UString(L"\\\\?\\") + curDir + s; - return true; -} +/* +WinXP-64 CreateFile(): + "" - ERROR_PATH_NOT_FOUND + :stream - OK + .:stream - ERROR_PATH_NOT_FOUND + .\:stream - OK -bool GetLongPath(LPCWSTR path, UString &longPath) -{ - if (GetLongPathBase(path, longPath)) - return !longPath.IsEmpty(); - return false; -} -#endif + folder\:stream - ERROR_INVALID_NAME + folder:stream - OK -namespace NIO { + c:\:stream - OK -CFileBase::~CFileBase() { Close(); } + c::stream - ERROR_INVALID_NAME, if current dir is NOT ROOT ( c:\dir1 ) + c::stream - OK, if current dir is ROOT ( c:\ ) +*/ -bool CFileBase::Create(LPCTSTR fileName, DWORD desiredAccess, +bool CFileBase::Create(CFSTR path, DWORD desiredAccess, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) { if (!Close()) return false; - _handle = ::CreateFile(fileName, desiredAccess, shareMode, - (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, - flagsAndAttributes, (HANDLE)NULL); - #ifdef WIN_LONG_PATH2 - if (_handle == INVALID_HANDLE_VALUE) - { - UString longPath; - if (GetLongPath(fileName, longPath)) - _handle = ::CreateFileW(longPath, desiredAccess, shareMode, - (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, - flagsAndAttributes, (HANDLE)NULL); - } - #endif + #ifdef SUPPORT_DEVICE_FILE IsDeviceFile = false; #endif - return (_handle != INVALID_HANDLE_VALUE); -} -#ifndef _UNICODE -bool CFileBase::Create(LPCWSTR fileName, DWORD desiredAccess, - DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) -{ + #ifndef _UNICODE if (!g_IsNT) - return Create(UnicodeStringToMultiByte(fileName, ::AreFileApisANSI() ? CP_ACP : CP_OEMCP), - desiredAccess, shareMode, creationDisposition, flagsAndAttributes); - if (!Close()) - return false; - _handle = ::CreateFileW(fileName, desiredAccess, shareMode, - (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, - flagsAndAttributes, (HANDLE)NULL); - #ifdef WIN_LONG_PATH - if (_handle == INVALID_HANDLE_VALUE) { - UString longPath; - if (GetLongPath(fileName, longPath)) - _handle = ::CreateFileW(longPath, desiredAccess, shareMode, - (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, - flagsAndAttributes, (HANDLE)NULL); + _handle = ::CreateFile(fs2fas(path), desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); } + else #endif - #ifdef SUPPORT_DEVICE_FILE - IsDeviceFile = false; - #endif + { + IF_USE_MAIN_PATH + _handle = ::CreateFileW(fs2us(path), desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); + #ifdef WIN_LONG_PATH + if (_handle == INVALID_HANDLE_VALUE && USE_SUPER_PATH) + { + UString superPath; + if (GetSuperPath(path, superPath, USE_MAIN_PATH)) + _handle = ::CreateFileW(superPath, desiredAccess, shareMode, + (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, flagsAndAttributes, (HANDLE)NULL); + } + #endif + } return (_handle != INVALID_HANDLE_VALUE); } -#endif -bool CFileBase::Close() +bool CFileBase::Close() throw() { if (_handle == INVALID_HANDLE_VALUE) return true; @@ -166,17 +91,17 @@ bool CFileBase::Close() return true; } -bool CFileBase::GetPosition(UInt64 &position) const +bool CFileBase::GetPosition(UInt64 &position) const throw() { return Seek(0, FILE_CURRENT, position); } -bool CFileBase::GetLength(UInt64 &length) const +bool CFileBase::GetLength(UInt64 &length) const throw() { #ifdef SUPPORT_DEVICE_FILE - if (IsDeviceFile && LengthDefined) + if (IsDeviceFile && SizeDefined) { - length = Length; + length = Size; return true; } #endif @@ -190,127 +115,211 @@ bool CFileBase::GetLength(UInt64 &length) const return true; } -bool CFileBase::Seek(Int64 distanceToMove, DWORD moveMethod, UInt64 &newPosition) const +bool CFileBase::Seek(Int64 distanceToMove, DWORD moveMethod, UInt64 &newPosition) const throw() { #ifdef SUPPORT_DEVICE_FILE - if (IsDeviceFile && LengthDefined && moveMethod == FILE_END) + if (IsDeviceFile && SizeDefined && moveMethod == FILE_END) { - distanceToMove += Length; + distanceToMove += Size; moveMethod = FILE_BEGIN; } #endif - LARGE_INTEGER value; - value.QuadPart = distanceToMove; - value.LowPart = ::SetFilePointer(_handle, value.LowPart, &value.HighPart, moveMethod); - if (value.LowPart == 0xFFFFFFFF) + LONG high = (LONG)(distanceToMove >> 32); + DWORD low = ::SetFilePointer(_handle, (LONG)(distanceToMove & 0xFFFFFFFF), &high, moveMethod); + if (low == 0xFFFFFFFF) if (::GetLastError() != NO_ERROR) return false; - newPosition = value.QuadPart; + newPosition = (((UInt64)high) << 32) + low; return true; } -bool CFileBase::Seek(UInt64 position, UInt64 &newPosition) +bool CFileBase::Seek(UInt64 position, UInt64 &newPosition) const throw() { return Seek(position, FILE_BEGIN, newPosition); } -bool CFileBase::SeekToBegin() +bool CFileBase::SeekToBegin() const throw() { UInt64 newPosition; return Seek(0, newPosition); } -bool CFileBase::SeekToEnd(UInt64 &newPosition) +bool CFileBase::SeekToEnd(UInt64 &newPosition) const throw() { return Seek(0, FILE_END, newPosition); } -bool CFileBase::GetFileInformation(CByHandleFileInfo &fileInfo) const +// ---------- CInFile --------- + +#ifdef SUPPORT_DEVICE_FILE + +void CInFile::CorrectDeviceSize() { - BY_HANDLE_FILE_INFORMATION winFileInfo; - if (!::GetFileInformationByHandle(_handle, &winFileInfo)) - return false; - fileInfo.Attrib = winFileInfo.dwFileAttributes; - fileInfo.CTime = winFileInfo.ftCreationTime; - fileInfo.ATime = winFileInfo.ftLastAccessTime; - fileInfo.MTime = winFileInfo.ftLastWriteTime; - fileInfo.VolumeSerialNumber = winFileInfo.dwFileAttributes; - fileInfo.Size = (((UInt64)winFileInfo.nFileSizeHigh) << 32) + winFileInfo.nFileSizeLow; - fileInfo.NumberOfLinks = winFileInfo.nNumberOfLinks; - fileInfo.FileIndex = (((UInt64)winFileInfo.nFileIndexHigh) << 32) + winFileInfo.nFileIndexLow; - return true; + // maybe we must decrease kClusterSize to 1 << 12, if we want correct size at tail + static const UInt32 kClusterSize = 1 << 14; + UInt64 pos = Size & ~(UInt64)(kClusterSize - 1); + UInt64 realNewPosition; + if (!Seek(pos, realNewPosition)) + return; + Byte *buf = (Byte *)MidAlloc(kClusterSize); + + bool needbackward = true; + + for (;;) + { + UInt32 processed = 0; + // up test is slow for "PhysicalDrive". + // processed size for latest block for "PhysicalDrive0" is 0. + if (!Read1(buf, kClusterSize, processed)) + break; + if (processed == 0) + break; + needbackward = false; + Size = pos + processed; + if (processed != kClusterSize) + break; + pos += kClusterSize; + } + + if (needbackward && pos != 0) + { + pos -= kClusterSize; + for (;;) + { + // break; + if (!Seek(pos, realNewPosition)) + break; + if (!buf) + { + buf = (Byte *)MidAlloc(kClusterSize); + if (!buf) + break; + } + UInt32 processed = 0; + // that code doesn't work for "PhysicalDrive0" + if (!Read1(buf, kClusterSize, processed)) + break; + if (processed != 0) + { + Size = pos + processed; + break; + } + if (pos == 0) + break; + pos -= kClusterSize; + } + } + MidFree(buf); } -///////////////////////// -// CInFile -#ifdef SUPPORT_DEVICE_FILE -void CInFile::GetDeviceLength() +void CInFile::CalcDeviceSize(CFSTR s) { - if (_handle != INVALID_HANDLE_VALUE && IsDeviceFile) - { - #ifdef UNDER_CE - LengthDefined = true; - Length = 128 << 20; + SizeDefined = false; + Size = 0; + if (_handle == INVALID_HANDLE_VALUE || !IsDeviceFile) + return; + #ifdef UNDER_CE + + SizeDefined = true; + Size = 128 << 20; + + #else + + PARTITION_INFORMATION partInfo; + bool needCorrectSize = true; - #else - PARTITION_INFORMATION partInfo; - LengthDefined = true; - Length = 0; + /* + WinXP 64-bit: + + HDD \\.\PhysicalDrive0 (MBR): + GetPartitionInfo == GeometryEx : corrrect size? (includes tail) + Geometry : smaller than GeometryEx (no tail, maybe correct too?) + MyGetDiskFreeSpace : FAIL + Size correction is slow and block size (kClusterSize) must be small? + + HDD partition \\.\N: (NTFS): + MyGetDiskFreeSpace : Size of NTFS clusters. Same size can be calculated after correction + GetPartitionInfo : size of partition data: NTFS clusters + TAIL; TAIL contains extra empty sectors and copy of first sector of NTFS + Geometry / CdRomGeometry / GeometryEx : size of HDD (not that partition) + + CD-ROM drive (ISO): + MyGetDiskFreeSpace : correct size. Same size can be calculated after correction + Geometry == CdRomGeometry : smaller than corrrect size + GetPartitionInfo == GeometryEx : larger than corrrect size + + Floppy \\.\a: (FAT): + Geometry : correct size. + CdRomGeometry / GeometryEx / GetPartitionInfo / MyGetDiskFreeSpace - FAIL + correction works OK for FAT. + correction works OK for non-FAT, if kClusterSize = 512. + */ + + if (GetPartitionInfo(&partInfo)) + { + Size = partInfo.PartitionLength.QuadPart; + SizeDefined = true; + needCorrectSize = false; + if ((s)[0] == '\\' && (s)[1] == '\\' && (s)[2] == '.' && (s)[3] == '\\' && (s)[5] == ':' && (s)[6] == 0) + { + FChar path[4] = { s[4], ':', '\\', 0 }; + UInt64 clusterSize, totalSize, freeSize; + if (NSystem::MyGetDiskFreeSpace(path, clusterSize, totalSize, freeSize)) + Size = totalSize; + else + needCorrectSize = true; + } + } - if (GetPartitionInfo(&partInfo)) - Length = partInfo.PartitionLength.QuadPart; + if (!SizeDefined) + { + my_DISK_GEOMETRY_EX geomEx; + SizeDefined = GetGeometryEx(&geomEx); + if (SizeDefined) + Size = geomEx.DiskSize.QuadPart; else { DISK_GEOMETRY geom; - if (!GetGeometry(&geom)) - if (!GetCdRomGeometry(&geom)) - LengthDefined = false; - if (LengthDefined) - Length = geom.Cylinders.QuadPart * geom.TracksPerCylinder * geom.SectorsPerTrack * geom.BytesPerSector; + SizeDefined = GetGeometry(&geom); + if (!SizeDefined) + SizeDefined = GetCdRomGeometry(&geom); + if (SizeDefined) + Size = geom.Cylinders.QuadPart * geom.TracksPerCylinder * geom.SectorsPerTrack * geom.BytesPerSector; } - // SeekToBegin(); - #endif } + + if (needCorrectSize && SizeDefined && Size != 0) + { + CorrectDeviceSize(); + SeekToBegin(); + } + + // SeekToBegin(); + #endif } // ((desiredAccess & (FILE_WRITE_DATA | FILE_APPEND_DATA | GENERIC_WRITE)) == 0 && #define MY_DEVICE_EXTRA_CODE \ - IsDeviceFile = IsDeviceName(fileName); \ - GetDeviceLength(); + IsDeviceFile = IsDevicePath(fileName); \ + CalcDeviceSize(fileName); #else #define MY_DEVICE_EXTRA_CODE #endif -bool CInFile::Open(LPCTSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) -{ - bool res = Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); - MY_DEVICE_EXTRA_CODE - return res; -} - -bool CInFile::OpenShared(LPCTSTR fileName, bool shareForWrite) -{ return Open(fileName, FILE_SHARE_READ | (shareForWrite ? FILE_SHARE_WRITE : 0), OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); } - -bool CInFile::Open(LPCTSTR fileName) - { return OpenShared(fileName, false); } - -#ifndef _UNICODE -bool CInFile::Open(LPCWSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) +bool CInFile::Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) { bool res = Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); MY_DEVICE_EXTRA_CODE return res; } -bool CInFile::OpenShared(LPCWSTR fileName, bool shareForWrite) +bool CInFile::OpenShared(CFSTR fileName, bool shareForWrite) { return Open(fileName, FILE_SHARE_READ | (shareForWrite ? FILE_SHARE_WRITE : 0), OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); } -bool CInFile::Open(LPCWSTR fileName) +bool CInFile::Open(CFSTR fileName) { return OpenShared(fileName, false); } -#endif // ReadFile and WriteFile functions in Windows have BUG: // If you Read or Write 64MB or more (probably min_failure_size = 64MB - 32KB + 1) @@ -323,7 +332,7 @@ bool CInFile::Open(LPCWSTR fileName) static UInt32 kChunkSizeMax = (1 << 22); -bool CInFile::Read1(void *data, UInt32 size, UInt32 &processedSize) +bool CInFile::Read1(void *data, UInt32 size, UInt32 &processedSize) throw() { DWORD processedLoc = 0; bool res = BOOLToBool(::ReadFile(_handle, data, size, &processedLoc, NULL)); @@ -331,14 +340,14 @@ bool CInFile::Read1(void *data, UInt32 size, UInt32 &processedSize) return res; } -bool CInFile::ReadPart(void *data, UInt32 size, UInt32 &processedSize) +bool CInFile::ReadPart(void *data, UInt32 size, UInt32 &processedSize) throw() { if (size > kChunkSizeMax) size = kChunkSizeMax; return Read1(data, size, processedSize); } -bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize) +bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize) throw() { processedSize = 0; do @@ -357,40 +366,29 @@ bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize) return true; } -///////////////////////// -// COutFile - -bool COutFile::Open(LPCTSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) - { return CFileBase::Create(fileName, GENERIC_WRITE, shareMode, creationDisposition, flagsAndAttributes); } +// ---------- COutFile --------- static inline DWORD GetCreationDisposition(bool createAlways) { return createAlways? CREATE_ALWAYS: CREATE_NEW; } -bool COutFile::Open(LPCTSTR fileName, DWORD creationDisposition) - { return Open(fileName, FILE_SHARE_READ, creationDisposition, FILE_ATTRIBUTE_NORMAL); } - -bool COutFile::Create(LPCTSTR fileName, bool createAlways) - { return Open(fileName, GetCreationDisposition(createAlways)); } - -#ifndef _UNICODE - -bool COutFile::Open(LPCWSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) +bool COutFile::Open(CFSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes) { return CFileBase::Create(fileName, GENERIC_WRITE, shareMode, creationDisposition, flagsAndAttributes); } -bool COutFile::Open(LPCWSTR fileName, DWORD creationDisposition) +bool COutFile::Open(CFSTR fileName, DWORD creationDisposition) { return Open(fileName, FILE_SHARE_READ, creationDisposition, FILE_ATTRIBUTE_NORMAL); } -bool COutFile::Create(LPCWSTR fileName, bool createAlways) +bool COutFile::Create(CFSTR fileName, bool createAlways) { return Open(fileName, GetCreationDisposition(createAlways)); } -#endif +bool COutFile::CreateAlways(CFSTR fileName, DWORD flagsAndAttributes) + { return Open(fileName, FILE_SHARE_READ, GetCreationDisposition(true), flagsAndAttributes); } -bool COutFile::SetTime(const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime) +bool COutFile::SetTime(const FILETIME *cTime, const FILETIME *aTime, const FILETIME *mTime) throw() { return BOOLToBool(::SetFileTime(_handle, cTime, aTime, mTime)); } -bool COutFile::SetMTime(const FILETIME *mTime) { return SetTime(NULL, NULL, mTime); } +bool COutFile::SetMTime(const FILETIME *mTime) throw() { return SetTime(NULL, NULL, mTime); } -bool COutFile::WritePart(const void *data, UInt32 size, UInt32 &processedSize) +bool COutFile::WritePart(const void *data, UInt32 size, UInt32 &processedSize) throw() { if (size > kChunkSizeMax) size = kChunkSizeMax; @@ -400,7 +398,7 @@ bool COutFile::WritePart(const void *data, UInt32 size, UInt32 &processedSize) return res; } -bool COutFile::Write(const void *data, UInt32 size, UInt32 &processedSize) +bool COutFile::Write(const void *data, UInt32 size, UInt32 &processedSize) throw() { processedSize = 0; do @@ -419,9 +417,9 @@ bool COutFile::Write(const void *data, UInt32 size, UInt32 &processedSize) return true; } -bool COutFile::SetEndOfFile() { return BOOLToBool(::SetEndOfFile(_handle)); } +bool COutFile::SetEndOfFile() throw() { return BOOLToBool(::SetEndOfFile(_handle)); } -bool COutFile::SetLength(UInt64 length) +bool COutFile::SetLength(UInt64 length) throw() { UInt64 newPosition; if (!Seek(length, newPosition)) |