public void Revert()
{
int num = 0;
if (!this.currentThread.Equals(Thread.CurrentThread))
{
throw new InvalidOperationException(DiagnosticsResources.WrongThread);
}
if (!this.NeedToRevert)
{
return;
}
bool flag = true;
try
{
if (this.stateWasChanged && (this.tlsContents.ReferenceCountValue > 1 || !this.tlsContents.IsImpersonating))
{
NativeMethods.TOKEN_PRIVILEGE token_PRIVILEGE = default(NativeMethods.TOKEN_PRIVILEGE);
token_PRIVILEGE.PrivilegeCount = 1U;
token_PRIVILEGE.Privilege.Luid = this.luid;
token_PRIVILEGE.Privilege.Attributes = (this.initialState ? 2U : 0U);
NativeMethods.TOKEN_PRIVILEGE token_PRIVILEGE2 = default(NativeMethods.TOKEN_PRIVILEGE);
uint num2 = 0U;
if (!NativeMethods.AdjustTokenPrivileges(this.tlsContents.ThreadHandle, false, ref token_PRIVILEGE, (uint)Marshal.SizeOf(token_PRIVILEGE2), ref token_PRIVILEGE2, ref num2))
{
num = Marshal.GetLastWin32Error();
flag = false;
}
}
}
finally
{
if (flag)
{
this.Reset();
}
}
if (num == 8)
{
throw new OutOfMemoryException();
}
if (num == 5)
{
throw new UnauthorizedAccessException(DiagnosticsResources.UnauthorizedAccess);
}
if (num != 0)
{
throw new Win32Exception(num);
}
}
private void ToggleState(bool enable)
{
int num = 0;
if (!this.currentThread.Equals(Thread.CurrentThread))
{
throw new InvalidOperationException(DiagnosticsResources.WrongThread);
}
if (this.NeedToRevert)
{
throw new InvalidOperationException(DiagnosticsResources.RevertPrivilege);
}
try
{
this.tlsContents = (Thread.GetData(Privilege.tlsSlot) as Privilege.TlsContents);
if (this.tlsContents == null)
{
this.tlsContents = new Privilege.TlsContents();
Thread.SetData(Privilege.tlsSlot, this.tlsContents);
}
else
{
this.tlsContents.IncrementReferenceCount();
}
NativeMethods.TOKEN_PRIVILEGE token_PRIVILEGE = default(NativeMethods.TOKEN_PRIVILEGE);
token_PRIVILEGE.PrivilegeCount = 1U;
token_PRIVILEGE.Privilege.Luid = this.luid;
token_PRIVILEGE.Privilege.Attributes = (enable ? 2U : 0U);
NativeMethods.TOKEN_PRIVILEGE token_PRIVILEGE2 = default(NativeMethods.TOKEN_PRIVILEGE);
uint num2 = 0U;
if (!NativeMethods.AdjustTokenPrivileges(this.tlsContents.ThreadHandle, false, ref token_PRIVILEGE, (uint)Marshal.SizeOf(token_PRIVILEGE2), ref token_PRIVILEGE2, ref num2))
{
num = Marshal.GetLastWin32Error();
}
else if (1300 == Marshal.GetLastWin32Error())
{
num = 1300;
}
else
{
this.initialState = ((token_PRIVILEGE2.Privilege.Attributes & 2U) != 0U);
this.stateWasChanged = (this.initialState != enable);
this.needToRevert = (this.tlsContents.IsImpersonating || this.stateWasChanged);
}
}
finally
{
if (!this.needToRevert)
{
this.Reset();
}
}
if (num == 1300)
{
throw new PrivilegeNotHeldException(Privilege.privileges[this.luid] as string);
}
if (num == 8)
{
throw new OutOfMemoryException();
}
if (num == 5 || num == 1347)
{
throw new UnauthorizedAccessException(DiagnosticsResources.UnauthorizedAccess);
}
if (num != 0)
{
throw new Win32Exception(num);
}
}
internal static extern bool AdjustTokenPrivileges([In] SafeTokenHandle TokenHandle, [In] bool DisableAllPrivileges, [In] ref NativeMethods.TOKEN_PRIVILEGE NewState, [In] uint BufferLength, [In][Out] ref NativeMethods.TOKEN_PRIVILEGE PreviousState, [In][Out] ref uint ReturnLength);
