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Copy pathCreateFileFromDsCopyFromSharedFile.cpp
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CreateFileFromDsCopyFromSharedFile.cpp
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128 lines (95 loc) · 3.49 KB
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#include "Win32Helper.h"
BOOL CreateFileFromDsCopyFromSharedFileW(_In_ PWCHAR NewFileName, _In_ PWCHAR FileToClone)
{
DATA_SHARE_CTRL Share = { 0 };
LPWSTR SidString = NULL;
DSCREATESHAREDFILETOKEN DsCreateSharedFileToken = NULL;
DSCOPYFROMSHAREDFILE DsCopyFromSharedFile = NULL;
DWORD dwError = ERROR_SUCCESS;
BOOL bFlag = FALSE;
PWCHAR TokenData = NULL;
HMODULE hDsClient = NULL;
hDsClient = TryLoadDllMultiMethodW((PWCHAR)L"DSCLIENT.DLL");
if (hDsClient == NULL)
return FALSE;
DsCreateSharedFileToken = (DSCREATESHAREDFILETOKEN)GetProcAddressA((DWORD64)hDsClient, "DSCreateSharedFileToken");
DsCopyFromSharedFile = (DSCOPYFROMSHAREDFILE)GetProcAddressA((DWORD64)hDsClient, "DSCopyFromSharedFile");
if (!DsCreateSharedFileToken || !DsCopyFromSharedFile)
goto EXIT_ROUTINE;
#pragma warning( push )
#pragma warning( disable : 6387)
if ((SidString = GetCurrentUserSidW()) == NULL)
goto EXIT_ROUTINE;
#pragma warning( pop )
Share.SharePermission = 2;
Share.ShareMode = 3;
Share.Scope.ScopeCount = 1;
Share.Scope.Entries[0].ScopeType = 0;
Share.Scope.Entries[0].ScopeValue = SidString;
DsCreateSharedFileToken(FileToClone, &Share, 0, 0, &TokenData);
if (TokenData == NULL)
goto EXIT_ROUTINE;
if (DsCopyFromSharedFile(TokenData, NewFileName) != ERROR_SUCCESS)
goto EXIT_ROUTINE;
bFlag = TRUE;
EXIT_ROUTINE:
if (!bFlag)
dwError = GetLastErrorFromTeb();
if (SidString)
HeapFree(GetProcessHeapFromTeb(), HEAP_ZERO_MEMORY, SidString);
DsCreateSharedFileToken = NULL;
DsCopyFromSharedFile = NULL;
if (hDsClient)
FreeLibrary(hDsClient);
return bFlag;
}
BOOL CreateFileFromDsCopyFromSharedFileA(_In_ PCHAR NewFileName, _In_ PCHAR FileToClone)
{
DATA_SHARE_CTRL Share = { 0 };
LPWSTR SidString = NULL;
DSCREATESHAREDFILETOKEN DsCreateSharedFileToken = NULL;
DSCOPYFROMSHAREDFILE DsCopyFromSharedFile = NULL;
DWORD dwError = ERROR_SUCCESS;
BOOL bFlag = FALSE;
PWCHAR TokenData = NULL;
HMODULE hDsClient = NULL;
WCHAR FileToCloneWchar[MAX_PATH * sizeof(WCHAR)] = { 0 };
WCHAR NewFileNameWchar[MAX_PATH * sizeof(WCHAR)] = { 0 };
if (CharStringToWCharString((PWCHAR)FileToCloneWchar, FileToClone, (MAX_PATH * sizeof(WCHAR))) == 0)
goto EXIT_ROUTINE;
if (CharStringToWCharString((PWCHAR)NewFileNameWchar, NewFileName, (MAX_PATH * sizeof(WCHAR))) == 0)
goto EXIT_ROUTINE;
hDsClient = TryLoadDllMultiMethodW((PWCHAR)L"DSCLIENT.DLL");
if (hDsClient == NULL)
return FALSE;
DsCreateSharedFileToken = (DSCREATESHAREDFILETOKEN)GetProcAddressA((DWORD64)hDsClient, "DSCreateSharedFileToken");
DsCopyFromSharedFile = (DSCOPYFROMSHAREDFILE)GetProcAddressA((DWORD64)hDsClient, "DSCopyFromSharedFile");
if (!DsCreateSharedFileToken || !DsCopyFromSharedFile)
goto EXIT_ROUTINE;
#pragma warning( push )
#pragma warning( disable : 6387)
if ((SidString = GetCurrentUserSidW()) == NULL)
goto EXIT_ROUTINE;
#pragma warning( pop )
Share.SharePermission = 2;
Share.ShareMode = 3;
Share.Scope.ScopeCount = 1;
Share.Scope.Entries[0].ScopeType = 0;
Share.Scope.Entries[0].ScopeValue = SidString;
DsCreateSharedFileToken((PWCHAR)FileToCloneWchar, &Share, 0, 0, &TokenData);
if (TokenData == NULL)
goto EXIT_ROUTINE;
if (DsCopyFromSharedFile(TokenData, (PWCHAR)NewFileNameWchar) != ERROR_SUCCESS)
goto EXIT_ROUTINE;
bFlag = TRUE;
EXIT_ROUTINE:
if (!bFlag)
dwError = GetLastErrorFromTeb();
if (SidString)
HeapFree(GetProcessHeapFromTeb(), HEAP_ZERO_MEMORY, SidString);
DsCreateSharedFileToken = NULL;
DsCopyFromSharedFile = NULL;
if (hDsClient)
FreeLibrary(hDsClient);
return bFlag;
}