1
  #   ˆl–Ðz¾”Ji?u4 ^¸ËwÒ˜´oÂ„ì¾÷ÁÀ ?÷     using Microsoft.Win32.SafeHandles;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.Principal;
using System.Text;

namespace Ansible.Privilege
{
    internal class NativeHelpers
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct LUID
        {
            public UInt32 LowPart;
            public Int32 HighPart;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct LUID_AND_ATTRIBUTES
        {
            public LUID Luid;
            public PrivilegeAttributes Attributes;
        }

        [StructLayout(LayoutKind.Sequential)]
        public struct TOKEN_PRIVILEGES
        {
            public UInt32 PrivilegeCount;
            [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)]
            public LUID_AND_ATTRIBUTES[] Privileges;
        }
    }

    internal class NativeMethods
    {
        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool AdjustTokenPrivileges(
            SafeNativeHandle TokenHandle,
            [MarshalAs(UnmanagedType.Bool)] bool DisableAllPrivileges,
            SafeMemoryBuffer NewState,
            UInt32 BufferLength,
            SafeMemoryBuffer PreviousState,
            out UInt32 ReturnLength);

        [DllImport("kernel32.dll")]
        public static extern bool CloseHandle(
            IntPtr hObject);

        [DllImport("kernel32")]
        public static extern SafeWaitHandle GetCurrentProcess();

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool GetTokenInformation(
            SafeNativeHandle TokenHandle,
            UInt32 TokenInformationClass,
            SafeMemoryBuffer TokenInformation,
            UInt32 TokenInformationLength,
            out UInt32 ReturnLength);

        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        public static extern bool LookupPrivilegeName(
            string lpSystemName,
            ref NativeHelpers.LUID lpLuid,
            StringBuilder lpName,
            ref UInt32 cchName);

        [DllImport("advapi32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
        public static extern bool LookupPrivilegeValue(
            string lpSystemName,
            string lpName,
            out NativeHelpers.LUID lpLuid);

        [DllImport("advapi32.dll", SetLastError = true)]
        public static extern bool OpenProcessToken(
            SafeHandle ProcessHandle,
            TokenAccessLevels DesiredAccess,
            out SafeNativeHandle TokenHandle);
    }

    internal class SafeMemoryBuffer : SafeHandleZeroOrMinusOneIsInvalid
    {
        public SafeMemoryBuffer() : base(true) { }
        public SafeMemoryBuffer(int cb) : base(true)
        {
            base.SetHandle(Marshal.AllocHGlobal(cb));
        }
        public SafeMemoryBuffer(IntPtr handle) : base(true)
        {
            base.SetHandle(handle);
        }
        protected override bool ReleaseHandle()
        {
            Marshal.FreeHGlobal(handle);
            return true;
        }
    }

    internal class SafeNativeHandle : SafeHandleZeroOrMinusOneIsInvalid
    {
        public SafeNativeHandle() : base(true) { }
        public SafeNativeHandle(IntPtr handle) : base(true) { this.handle = handle; }

        protected override bool ReleaseHandle()
        {
            return NativeMethods.CloseHandle(handle);
        }
    }

    public class Win32Exception : System.ComponentModel.Win32Exception
    {
        private string _msg;
        public Win32Exception(string message) : this(Marshal.GetLastWin32Error(), message) { }
        public Win32Exception(int errorCode, string message) : base(errorCode)
        {
            _msg = String.Format("{0} ({1}, Win32ErrorCode {2})", message, base.Message, errorCode);
        }
        public override string Message { get { return _msg; } }
        public static explicit operator Win32Exception(string message) {