internal static IntPtr GetCurrentUserSid()
{
IntPtr pTokenHandle = IntPtr.Zero;
IntPtr pBuffer = IntPtr.Zero;
try
{
//
// Get the current user's SID
//
int error = 0;
// Get the current thread's token
if (!UnsafeNativeMethods.OpenThreadToken(
UnsafeNativeMethods.GetCurrentThread(),
0x8, // TOKEN_QUERY
true,
ref pTokenHandle
))
{
if ((error = Marshal.GetLastWin32Error()) == 1008) // ERROR_NO_TOKEN
{
Debug.Assert(pTokenHandle == IntPtr.Zero);
// Current thread doesn't have a token, try the process
if (!UnsafeNativeMethods.OpenProcessToken(
UnsafeNativeMethods.GetCurrentProcess(),
0x8, // TOKEN_QUERY
ref pTokenHandle
))
{
int lastError = Marshal.GetLastWin32Error();
GlobalDebug.WriteLineIf(GlobalDebug.Error, "Utils", "GetCurrentUserSid: OpenProcessToken failed, gle=" + lastError);
throw new PrincipalOperationException(
String.Format(CultureInfo.CurrentCulture,
StringResources.UnableToOpenToken,
lastError));
}
}
else
{
GlobalDebug.WriteLineIf(GlobalDebug.Error, "Utils", "GetCurrentUserSid: OpenThreadToken failed, gle=" + error);
throw new PrincipalOperationException(
String.Format(CultureInfo.CurrentCulture,
StringResources.UnableToOpenToken,
error));
}
}
Debug.Assert(pTokenHandle != IntPtr.Zero);
int neededBufferSize = 0;
// Retrieve the user info from the current thread's token
// First, determine how big a buffer we need.
bool success = UnsafeNativeMethods.GetTokenInformation(
pTokenHandle,
1, // TokenUser
IntPtr.Zero,
0,
ref neededBufferSize);
int getTokenInfoError = 0;
if ((getTokenInfoError = Marshal.GetLastWin32Error()) != 122) // ERROR_INSUFFICIENT_BUFFER
{
GlobalDebug.WriteLineIf(GlobalDebug.Error, "Utils", "GetCurrentUserSid: GetTokenInformation (1st try) failed, gle=" + getTokenInfoError);
throw new PrincipalOperationException(
String.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, getTokenInfoError));
}
// Allocate the necessary buffer.
Debug.Assert(neededBufferSize > 0);
pBuffer = Marshal.AllocHGlobal(neededBufferSize);
// Load the user info into the buffer
success = UnsafeNativeMethods.GetTokenInformation(
pTokenHandle,
1, // TokenUser
pBuffer,
neededBufferSize,
ref neededBufferSize);
if (!success)
{
int lastError = Marshal.GetLastWin32Error();
GlobalDebug.WriteLineIf(GlobalDebug.Error,
"Utils",
"GetCurrentUserSid: GetTokenInformation (2nd try) failed, neededBufferSize=" + neededBufferSize + ", gle=" + lastError);
throw new PrincipalOperationException(
String.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, lastError));
}
// Retrieve the user's SID from the user info
UnsafeNativeMethods.TOKEN_USER tokenUser = (UnsafeNativeMethods.TOKEN_USER)Marshal.PtrToStructure(pBuffer, typeof(UnsafeNativeMethods.TOKEN_USER));
IntPtr pUserSid = tokenUser.sidAndAttributes.pSid; // this is a reference into the NATIVE memory (into pBuffer)
Debug.Assert(UnsafeNativeMethods.IsValidSid(pUserSid));
// Now we make a copy of the SID to return
int userSidLength = UnsafeNativeMethods.GetLengthSid(pUserSid);
IntPtr pCopyOfUserSid = Marshal.AllocHGlobal(userSidLength);
success = UnsafeNativeMethods.CopySid(userSidLength, pCopyOfUserSid, pUserSid);
if (!success)
{
int lastError = Marshal.GetLastWin32Error();
GlobalDebug.WriteLineIf(GlobalDebug.Error,
"Utils",
"GetCurrentUserSid: CopySid failed, errorcode=" + lastError);
throw new PrincipalOperationException(
String.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, lastError));
}
return(pCopyOfUserSid);
}
finally
{
if (pTokenHandle != IntPtr.Zero)
{
UnsafeNativeMethods.CloseHandle(pTokenHandle);
}
if (pBuffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(pBuffer);
}
}
}
internal static IntPtr GetCurrentUserSid()
{
IntPtr intPtr;
IntPtr zero = IntPtr.Zero;
IntPtr zero1 = IntPtr.Zero;
try
{
if (!UnsafeNativeMethods.OpenThreadToken(UnsafeNativeMethods.GetCurrentThread(), 8, true, ref zero))
{
int lastWin32Error = Marshal.GetLastWin32Error();
int num = lastWin32Error;
if (lastWin32Error != 0x3f0)
{
object[] objArray = new object[1];
objArray[0] = num;
throw new PrincipalOperationException(string.Format(CultureInfo.CurrentCulture, StringResources.UnableToOpenToken, objArray));
}
else
{
if (!UnsafeNativeMethods.OpenProcessToken(UnsafeNativeMethods.GetCurrentProcess(), 8, ref zero))
{
int lastWin32Error1 = Marshal.GetLastWin32Error();
object[] objArray1 = new object[1];
objArray1[0] = lastWin32Error1;
throw new PrincipalOperationException(string.Format(CultureInfo.CurrentCulture, StringResources.UnableToOpenToken, objArray1));
}
}
}
int num1 = 0;
bool tokenInformation = UnsafeNativeMethods.GetTokenInformation(zero, 1, IntPtr.Zero, 0, ref num1);
int lastWin32Error2 = Marshal.GetLastWin32Error();
int num2 = lastWin32Error2;
if (lastWin32Error2 == 122)
{
zero1 = Marshal.AllocHGlobal(num1);
tokenInformation = UnsafeNativeMethods.GetTokenInformation(zero, 1, zero1, num1, ref num1);
if (tokenInformation)
{
UnsafeNativeMethods.TOKEN_USER structure = (UnsafeNativeMethods.TOKEN_USER)Marshal.PtrToStructure(zero1, typeof(UnsafeNativeMethods.TOKEN_USER));
IntPtr intPtr1 = structure.sidAndAttributes.pSid;
int lengthSid = UnsafeNativeMethods.GetLengthSid(intPtr1);
IntPtr intPtr2 = Marshal.AllocHGlobal(lengthSid);
tokenInformation = UnsafeNativeMethods.CopySid(lengthSid, intPtr2, intPtr1);
if (tokenInformation)
{
intPtr = intPtr2;
}
else
{
int lastWin32Error3 = Marshal.GetLastWin32Error();
object[] objArray2 = new object[1];
objArray2[0] = lastWin32Error3;
throw new PrincipalOperationException(string.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, objArray2));
}
}
else
{
int num3 = Marshal.GetLastWin32Error();
object[] objArray3 = new object[1];
objArray3[0] = num3;
throw new PrincipalOperationException(string.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, objArray3));
}
}
else
{
object[] objArray4 = new object[1];
objArray4[0] = num2;
throw new PrincipalOperationException(string.Format(CultureInfo.CurrentCulture, StringResources.UnableToRetrieveTokenInfo, objArray4));
}
}
finally
{
if (zero != IntPtr.Zero)
{
UnsafeNativeMethods.CloseHandle(zero);
}
if (zero1 != IntPtr.Zero)
{
Marshal.FreeHGlobal(zero1);
}
}
return(intPtr);
}