4.3

1 files changed, 0 insertions, 298 deletions

diff --git a/lib/FindFilePlus/find_file_plus.cpp b/lib/FindFilePlus/find_file_plus.cpp
deleted file mode 100644
index becfe553..00000000
--- a/lib/FindFilePlus/find_file_plus.cpp
+++ /dev/null
@@ -1,298 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
-// * Copyright (C) 2008-2011 ZenJu (zhnmju123 AT gmx.de)                    *
-// **************************************************************************
-
-#include "find_file_plus.h"
-#include "init_dll_binding.h"
-//#include <windows.h>  //these two don't play nice with each other
-#include "load_dll.h"
-#include <zen/scope_guard.h>
-
-using namespace dll;
-using namespace findplus;
-
-
-namespace
-{
-struct FileError
-{
-    FileError(ULONG errorCode) : win32Error(errorCode) {}
-    ULONG win32Error;
-};
-
-
-//--------------------------------------------------------------------------------------------------------------
-typedef NTSTATUS (NTAPI* NtOpenFileFunc)(PHANDLE fileHandle,
-                                         ACCESS_MASK desiredAccess,
-                                         POBJECT_ATTRIBUTES objectAttributes,
-                                         PIO_STATUS_BLOCK ioStatusBlock,
-                                         ULONG shareAccess,
-                                         ULONG openOptions);
-
-typedef NTSTATUS (NTAPI* NtCloseFunc)(HANDLE handle);
-
-typedef NTSTATUS (NTAPI* NtQueryDirectoryFileFunc)(HANDLE fileHandle,
-                                                   HANDLE event,
-                                                   PIO_APC_ROUTINE apcRoutine,
-                                                   PVOID apcContext,
-                                                   PIO_STATUS_BLOCK ioStatusBlock,
-                                                   PVOID fileInformation,
-                                                   ULONG length,
-                                                   FILE_INFORMATION_CLASS fileInformationClass,
-                                                   BOOLEAN ReturnSingleEntry,
-                                                   PUNICODE_STRING fileMask,
-                                                   BOOLEAN restartScan);
-
-typedef ULONG (NTAPI* RtlNtStatusToDosErrorFunc)(NTSTATUS /*__in status*/);
-
-typedef struct _RTL_RELATIVE_NAME_U
-{
-    UNICODE_STRING RelativeName;
-    HANDLE ContainingDirectory;
-    PVOID /*PRTLP_CURDIR_REF*/ CurDirRef;
-} RTL_RELATIVE_NAME_U, *PRTL_RELATIVE_NAME_U;
-
-typedef BOOLEAN (NTAPI* RtlDosPathNameToNtPathName_UFunc)(PCWSTR, 	             //__in dosFileName,
-                                                          PUNICODE_STRING,       //__out ntFileName,
-                                                          PCWSTR*, 	             //__out_optFilePart,
-                                                          PRTL_RELATIVE_NAME_U); //__out_opt relativeName
-
-typedef BOOLEAN (NTAPI* RtlDosPathNameToRelativeNtPathName_UFunc)(PCWSTR, 	             //__in dosFileName,
-                                                                  PUNICODE_STRING,       //__out ntFileName,
-                                                                  PCWSTR*, 	             //__out_optFilePart,
-                                                                  PRTL_RELATIVE_NAME_U); //__out_opt relativeName
-
-typedef VOID (NTAPI* RtlFreeUnicodeStringFunc)(PUNICODE_STRING); //__inout unicodeString
-
-//--------------------------------------------------------------------------------------------------------------
-
-//it seems we cannot use any of the ntoskrnl.lib files in WinDDK as they produce access violations
-//fortunately dynamic binding works fine:
-const SysDllFun<NtOpenFileFunc>			     	  ntOpenFile                  (L"ntdll.dll", "NtOpenFile");
-const SysDllFun<NtCloseFunc>				      ntClose                     (L"ntdll.dll", "NtClose");
-const SysDllFun<NtQueryDirectoryFileFunc>	      ntQueryDirectoryFile        (L"ntdll.dll", "NtQueryDirectoryFile");
-const SysDllFun<RtlNtStatusToDosErrorFunc>	      rtlNtStatusToDosError       (L"ntdll.dll", "RtlNtStatusToDosError");
-const SysDllFun<RtlFreeUnicodeStringFunc>         rtlFreeUnicodeString        (L"ntdll.dll", "RtlFreeUnicodeString");
-const SysDllFun<RtlDosPathNameToNtPathName_UFunc> rtlDosPathNameToNtPathName_U(SysDllFun<RtlDosPathNameToRelativeNtPathName_UFunc>(L"ntdll.dll", "RtlDosPathNameToRelativeNtPathName_U") ?
-                                                                               SysDllFun<RtlDosPathNameToRelativeNtPathName_UFunc>(L"ntdll.dll", "RtlDosPathNameToRelativeNtPathName_U") : //use the newer version if available
-                                                                               SysDllFun<RtlDosPathNameToNtPathName_UFunc>(L"ntdll.dll", "RtlDosPathNameToNtPathName_U")); //fallback for XP
-//global constants only -> preserve thread safety!
-}
-
-
-bool findplus::initDllBinding() //evaluate in ::DllMain() when attaching process
-{
-    //NT/ZwXxx Routines
-    //http://msdn.microsoft.com/en-us/library/ff567122(v=VS.85).aspx
-
-    //Run-Time Library (RTL) Routines
-    //http://msdn.microsoft.com/en-us/library/ff563638(v=VS.85).aspx
-
-    //verify dynamic dll binding
-    return ntOpenFile &&
-           ntClose    &&
-           ntQueryDirectoryFile  &&
-           rtlNtStatusToDosError &&
-           rtlFreeUnicodeString  &&
-           rtlDosPathNameToNtPathName_U;
-
-    //this may become handy some time: nt status code STATUS_ORDINAL_NOT_FOUND maps to win32 code ERROR_INVALID_ORDINAL
-}
-
-
-class findplus::FileSearcher
-{
-public:
-    FileSearcher(const wchar_t* dirname); //throw FileError
-    ~FileSearcher();
-
-    void readdir(FileInformation& output); //throw FileError
-
-private:
-    UNICODE_STRING ntPathName; //it seems hDir implicitly keeps a reference to this, at least ::FindFirstFile() does no cleanup before ::FindClose()!
-    HANDLE hDir;
-
-    ULONG  nextEntryOffset; //!= 0 if entry is waiting in buffer
-    //::FindNextFileW() uses 0x1000 = 4096 = sizeof(FILE_BOTH_DIR_INFORMATION) + sizeof(TCHAR) * 2000
-    //=> let's use the same, even if our header is 16 byte larger; maybe there is some packet size advantage for networks? Note that larger buffers seem to degrade performance.
-    static const ULONG BUFFER_SIZE = 4096;
-    LONGLONG buffer[BUFFER_SIZE / sizeof(LONGLONG)]; //buffer needs to be aligned at LONGLONG boundary
-
-    static_assert(BUFFER_SIZE % sizeof(LONGLONG) == 0, "ups, our buffer is trimmed!");
-};
-
-
-FileSearcher::FileSearcher(const wchar_t* dirname) :
-    hDir(NULL),
-    nextEntryOffset(0)
-{
-    ntPathName.Buffer = NULL;
-    ntPathName.Length = 0;
-    ntPathName.MaximumLength = 0;
-
-    zen::ScopeGuard guardConstructor = zen::makeGuard([&]() { this->~FileSearcher(); });
-    //--------------------------------------------------------------------------------------------------------------
-
-    //convert dosFileName, e.g. C:\Users or \\?\C:\Users to ntFileName \??\C:\Users
-    //in contrast to ::FindFirstFile() we don't evaluate the relativeName, however tests indicate ntFileName is *always* filled with an absolute name, even if dosFileName is relative
-
-    //NOTE: RtlDosPathNameToNtPathName_U may be used on all XP/Win7/Win8 for compatibility
-    //		RtlDosPathNameToNtPathName_U:         used by Windows XP          available with OS version 3.51 (Windows NT) and higher
-    //		RtlDosPathNameToRelativeNtPathName_U: used by Win7/Win8           available with OS version 5.2  (Windows Server 2003) and higher
-    if (!rtlDosPathNameToNtPathName_U(dirname,     //__in dosFileName,
-                                      &ntPathName, //__out ntFileName,
-                                      NULL,        //__out_optFilePart,
-                                      NULL))       //__out_opt relativeName - empty if dosFileName is absolute
-        throw FileError(rtlNtStatusToDosError(STATUS_OBJECT_PATH_NOT_FOUND)); //translates to ERROR_PATH_NOT_FOUND, same behavior like ::FindFirstFileEx()
-
-    OBJECT_ATTRIBUTES objAttr = {};
-    InitializeObjectAttributes(&objAttr,    //[out]           POBJECT_ATTRIBUTES initializedAttributes,
-                               &ntPathName, //[in]            PUNICODE_STRING objectName,
-                               OBJ_CASE_INSENSITIVE, //[in]   ULONG attributes,
-                               NULL,        //[in]            HANDLE rootDirectory,
-                               NULL);       //[in, optional]  PSECURITY_DESCRIPTOR securityDescriptor
-
-    {
-        IO_STATUS_BLOCK status = {};
-        NTSTATUS rv = ntOpenFile(&hDir,                        //__out PHANDLE FileHandle,
-                                 FILE_LIST_DIRECTORY | SYNCHRONIZE, //__in ACCESS_MASK desiredAccess, - 100001 used by ::FindFirstFile() on all XP/Win7/Win8
-                                 &objAttr,                     //__in POBJECT_ATTRIBUTES objectAttributes,
-                                 &status,                      //__out PIO_STATUS_BLOCK ioStatusBlock,
-                                 FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, //__in ULONG shareAccess, - 7 on Win7/Win8, 3 on XP
-                                 FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT | FILE_OPEN_FOR_BACKUP_INTENT); //__in ULONG openOptions - 4021 used on all XP/Win7/Win8
-        if (!NT_SUCCESS(rv))
-            throw FileError(rtlNtStatusToDosError(rv));
-    }
-
-    guardConstructor.dismiss();
-}
-
-
-inline
-FileSearcher::~FileSearcher()
-{
-    //cleanup in reverse order
-    if (hDir)
-        ntClose(hDir);
-
-    if (ntPathName.Buffer)
-        rtlFreeUnicodeString(&ntPathName); //cleanup identical to ::FindFirstFile()
-    //note that most if this function seems inlined by the linker, so that its assembly looks equivalent to "RtlFreeHeap(GetProcessHeap(), 0, ntPathName.Buffer)"
-}
-
-
-void FileSearcher::readdir(FileInformation& output)
-{
-    //although FILE_ID_FULL_DIR_INFORMATION should suffice for our purposes, there are problems on Windows XP for certain directories, e.g. "\\Vboxsvr\build"
-    //making NtQueryDirectoryFile() return with STATUS_INVALID_PARAMETER while other directories, e.g. "C:\" work fine for some reason
-    //FILE_ID_BOTH_DIR_INFORMATION on the other hand works on XP/Win7/Win8
-    //performance: there is no noticable difference between FILE_ID_BOTH_DIR_INFORMATION and FILE_ID_FULL_DIR_INFORMATION
-
-    /* corresponding first access in ::FindFirstFileW()
-
-    NTSTATUS rv = ntQueryDirectoryFile(hDir,        //__in HANDLE fileHandle,
-                                       NULL,        //__in_opt HANDLE event,
-                                       NULL,        //__in_opt PIO_APC_ROUTINE apcRoutine,
-                                       NULL,        //__in_opt PVOID apcContext,
-                                       &status,     //__out PIO_STATUS_BLOCK ioStatusBlock,
-                                       &buffer,     //__out_bcount(Length) PVOID fileInformation,
-                                       BUFFER_SIZE, //__in ULONG length, ::FindFirstFileW() on all XP/Win7/Win8 uses sizeof(FILE_BOTH_DIR_INFORMATION) + sizeof(TCHAR) * MAX_PATH == 0x268
-                                       FileIdBothDirectoryInformation, //__in FILE_INFORMATION_CLASS fileInformationClass - all XP/Win7/Win8 use "FileBothDirectoryInformation"
-                                       true,        //__in BOOLEAN returnSingleEntry,
-                                       NULL,        //__in_opt PUNICODE_STRING mask,
-                                       false);      //__in BOOLEAN restartScan
-    */
-
-    //analog to ::FindNextFileW() with performance optimized access (in contrast to first access in ::FindFirstFileW())
-    if (nextEntryOffset == 0)
-    {
-        IO_STATUS_BLOCK status = {};
-        NTSTATUS rv = ntQueryDirectoryFile(hDir,        //__in HANDLE fileHandle,
-                                           NULL,        //__in_opt HANDLE event,
-                                           NULL,        //__in_opt PIO_APC_ROUTINE apcRoutine,
-                                           NULL,        //__in_opt PVOID apcContext,
-                                           &status,     //__out PIO_STATUS_BLOCK ioStatusBlock,
-                                           &buffer,     //__out_bcount(Length) PVOID fileInformation,
-                                           BUFFER_SIZE, //__in ULONG length, ::FindNextFileW() on all XP/Win7/Win8 uses sizeof(FILE_BOTH_DIR_INFORMATION) + sizeof(TCHAR) * 2000 == 0x1000
-                                           FileIdBothDirectoryInformation, //__in FILE_INFORMATION_CLASS fileInformationClass - all XP/Win7/Win8 use "FileBothDirectoryInformation"
-                                           false,       //__in BOOLEAN returnSingleEntry,
-                                           NULL,        //__in_opt PUNICODE_STRING mask,
-                                           false);      //__in BOOLEAN restartScan
-        if (!NT_SUCCESS(rv))
-            throw FileError(rtlNtStatusToDosError(rv)); //throws STATUS_NO_MORE_FILES when finished
-
-        if (status.Information == 0)                                        //except for the first call to call ::NtQueryDirectoryFile():
-            throw FileError(rtlNtStatusToDosError(STATUS_BUFFER_OVERFLOW)); //if buffer size is too small, return value is STATUS_SUCCESS and Information == 0 -> we don't expect this!
-    }
-
-    const FILE_ID_BOTH_DIR_INFORMATION& dirInfo = *reinterpret_cast<FILE_ID_BOTH_DIR_INFORMATION*>(reinterpret_cast<char*>(buffer) + nextEntryOffset);
-
-    if (dirInfo.NextEntryOffset == 0)
-        nextEntryOffset = 0; //our offset is relative to the beginning of the buffer
-    else
-        nextEntryOffset += dirInfo.NextEntryOffset;
-
-
-    auto toFileTime = [](const LARGE_INTEGER & rawTime) -> FILETIME
-    {
-        FILETIME tmp = { rawTime.LowPart, rawTime.HighPart };
-        return tmp;
-    };
-
-    output.creationTime      = toFileTime(dirInfo.CreationTime);
-    output.lastWriteTime     = toFileTime(dirInfo.LastWriteTime);
-    output.fileSize.QuadPart = dirInfo.EndOfFile.QuadPart;
-    output.fileId.QuadPart   = dirInfo.FileId.QuadPart;
-    output.fileAttributes    = dirInfo.FileAttributes;
-    output.shortNameLength   = dirInfo.FileNameLength / sizeof(TCHAR); //FileNameLength is in bytes!
-
-    if (dirInfo.FileNameLength + sizeof(TCHAR) > sizeof(output.shortName)) //this may actually happen if ::NtQueryDirectoryFile() decides to return a
-        throw FileError(rtlNtStatusToDosError(STATUS_BUFFER_OVERFLOW));    //short name of length MAX_PATH + 1, 0-termination is not required!
-
-    ::memcpy(output.shortName, dirInfo.FileName, dirInfo.FileNameLength);
-    output.shortName[output.shortNameLength] = 0; //NOTE: FILE_ID_BOTH_DIR_INFORMATION::FileName in general is NOT 0-terminated! It is on XP/Win7, but NOT on Win8!
-
-    static_assert(sizeof(output.creationTime)   == sizeof(dirInfo.CreationTime),   "dang!");
-    static_assert(sizeof(output.lastWriteTime)  == sizeof(dirInfo.LastWriteTime),  "dang!");
-    static_assert(sizeof(output.fileSize)       == sizeof(dirInfo.EndOfFile),      "dang!");
-    static_assert(sizeof(output.fileId)         == sizeof(dirInfo.FileId),         "dang!");
-    static_assert(sizeof(output.fileAttributes) == sizeof(dirInfo.FileAttributes), "dang!");
-}
-
-
-FindHandle findplus::openDir(const wchar_t* dirname)
-{
-    try
-    {
-        return new FileSearcher(dirname); //throw FileError
-    }
-    catch (const FileError& err)
-    {
-        setWin32Error(err.win32Error);
-        return NULL;
-    }
-}
-
-
-bool findplus::readDir(FindHandle hnd, FileInformation& output)
-{
-    try
-    {
-        hnd->readdir(output); //throw FileError
-        return true;
-    }
-    catch (const FileError& err)
-    {
-        setWin32Error(err.win32Error);
-        return false;
-    }
-}
-
-
-void findplus::closeDir(FindHandle hnd)
-{
-    if (hnd) //play a little "nice"
-        delete hnd;
-}