internal static IEnumerable <string> EnumeratePorts()
{
uint needed = 0;
uint returned = 0;
// As per MSDN, call EnumPorts with an empty buffer.
// This call will fail, but will populate 'needed' with the required size of the buffer.
using (SafeUnmanagedMemoryHandle nullBuffer = new SafeUnmanagedMemoryHandle(0))
{
EnumPorts(null, 2, nullBuffer, 0, ref needed, ref returned);
}
// Allocate the required memory and retrieve the port data
using (SafeUnmanagedMemoryHandle buffer = new SafeUnmanagedMemoryHandle((int)needed))
{
if (EnumPorts(null, 2, buffer, needed, ref needed, ref returned))
{
PortInfo[] ports = new PortInfo[returned];
IntPtr currentPort = buffer.DangerousGetHandle();
for (int i = 0; i < returned; i++)
{
ports[i] = Marshal.PtrToStructure <PortInfo>(currentPort);
currentPort = IntPtr.Add(currentPort, Marshal.SizeOf <PortInfo>());
}
return(ports.Select(n => n.PortName));
}
else
{
throw new Win32Exception();
}
}
}
/// <summary> Constructor. </summary>
/// <param name="size"> The size of the array. </param>
public UnsafeGridItemArray(int size)
{
var numberOfBytes = size * SizeOfGridItem;
_dataArray = new SafeUnmanagedMemoryHandle(numberOfBytes);
_root = (GridItem *)_dataArray.Handle;
}
protected HidDevice(IntPtr rawInputBuffer, ref RAWINPUT raw)
{
_hPreparsedData = GetPreparsedData(raw.header.hDevice);
_pRawData = GetRawDataPtr(rawInputBuffer, ref raw);
_dwCount = raw.hid.dwCount;
_dwSizHid = raw.hid.dwSizHid;
}
/// <summary>
/// Checks whether the primary access token of the process belongs to a user account that is a member of the local Administrator group, even if it currently is not elevated.
/// </summary>
/// <returns>
/// True if the primary access token of the process belongs to a user account that is a member of the Administrators group; false otherwise.
/// </returns>
public static bool IsUserInAdminGroup()
{
// Default token's received aren't impersonation tokens, we are looking for an impersonation token.
bool isImpersonationToken = false;
// Open the access token of the current process.
SafeTokenHandle processToken;
if (!AdvApi32.OpenProcessToken(Process.GetCurrentProcess().Handle, (uint)(TokenAccessLevels.Query | TokenAccessLevels.Duplicate), out processToken))
{
MarshalHelper.ThrowLastWin32ErrorException();
}
// Starting from Vista linked tokens are supported which need to be checked.
if (EnvironmentHelper.VistaOrHigher)
{
// Determine token type: limited, elevated, or default.
int marshalSize = sizeof(AdvApi32.TokenElevationType);
var elevationTypeHandle = SafeUnmanagedMemoryHandle.FromNewlyAllocatedMemory(marshalSize);
if (!AdvApi32.GetTokenInformation(processToken, AdvApi32.TokenInformationClass.TokenElevationType, elevationTypeHandle.DangerousGetHandle(), marshalSize, out marshalSize))
{
MarshalHelper.ThrowLastWin32ErrorException();
}
var tokenType = (AdvApi32.TokenElevationType)Marshal.ReadInt32(elevationTypeHandle.DangerousGetHandle());
// If limited, get the linked elevated token for further check.
if (tokenType == AdvApi32.TokenElevationType.TokenElevationTypeLimited)
{
// Get the linked token.
marshalSize = IntPtr.Size;
var linkedTokenHandle = SafeUnmanagedMemoryHandle.FromNewlyAllocatedMemory(marshalSize);
if (!AdvApi32.GetTokenInformation(processToken, AdvApi32.TokenInformationClass.TokenLinkedToken, linkedTokenHandle.DangerousGetHandle(), marshalSize, out marshalSize))
{
MarshalHelper.ThrowLastWin32ErrorException();
}
processToken = new SafeTokenHandle(Marshal.ReadIntPtr(linkedTokenHandle.DangerousGetHandle()));
isImpersonationToken = true; // Linked tokens are already impersonation tokens.
}
}
// We need an impersonation token in order to check whether it contains admin SID.
if (!isImpersonationToken)
{
SafeTokenHandle impersonatedToken;
if (!AdvApi32.DuplicateToken(processToken, AdvApi32.SecurityImpersonationLevel.SecurityIdentification, out impersonatedToken))
{
MarshalHelper.ThrowLastWin32ErrorException();
}
processToken = impersonatedToken;
}
// Check if the token to be checked contains admin SID.
var identity = new WindowsIdentity(processToken.DangerousGetHandle());
var principal = new WindowsPrincipal(identity);
return(principal.IsInRole(WindowsBuiltInRole.Administrator));
}
internal static void XcvPortData(SafePrinterHandle xcvMonitor, string command, object portData)
{
// TCPMON XCV commands are listed at https://msdn.microsoft.com/en-us/windows/hardware/drivers/print/tcpmon-xcv-commands
int size = Marshal.SizeOf(portData);
using (SafeUnmanagedMemoryHandle inputDataPointer = new SafeUnmanagedMemoryHandle(size))
{
Marshal.StructureToPtr(portData, inputDataPointer.DangerousGetHandle(), true);
if (!XcvData(xcvMonitor, command, inputDataPointer, (uint)size, IntPtr.Zero, 0, out uint outputNeededSize, out uint status))
{
throw new Win32Exception();
}
}
}
internal static extern bool EnumPorts([MarshalAs(UnmanagedType.LPWStr)] string pName, uint level, SafeUnmanagedMemoryHandle pPorts, uint cbBuf, ref uint pcbNeeded, ref uint pcReturned);
internal static extern bool XcvData(SafePrinterHandle hXcv, string pszDataName, SafeUnmanagedMemoryHandle pInputData, uint cbInputData, IntPtr pOutputData, uint cbOutputData, out uint pcbOutputNeeded, out uint pdwStatus);
internal static extern bool EnumPrintProcessors(string pName, string pEnvironment, uint level, SafeUnmanagedMemoryHandle pPrintProcessorInfo, uint cbBuf, ref uint cbNeeded, ref uint cReturned);
public DuckDBState DuckDBQuery(DuckDBNativeConnection connection, SafeUnmanagedMemoryHandle query, out DuckDBResult result)
{
return NativeMethods.DuckDBQuery(connection, query, out result);
}
public static extern DuckDBState DuckDBQuery(DuckDBNativeConnection connection, SafeUnmanagedMemoryHandle query, out DuckDBResult result);
