Esempio n. 1
0
 private static void CloseThreadHandle(Microsoft.Win32.SafeHandles.SafeThreadHandle handle)
 {
     if (handle != null)
     {
         handle.Close();
     }
 }
        private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) {

            IntSecurity.UnmanagedCode.Demand();

            FileStream output;
            FileStream error;

            int retValue = 0;

            if (outputName == null || outputName.Length == 0)
                outputName = tempFiles.AddExtension("out");

            if (errorName == null || errorName.Length == 0)
                errorName = tempFiles.AddExtension("err");

            // Create the files
            output = CreateInheritedFile(outputName);
            error = CreateInheritedFile(errorName);

            bool success = false;
            SafeNativeMethods.PROCESS_INFORMATION pi = new SafeNativeMethods.PROCESS_INFORMATION();
            SafeProcessHandle procSH = new SafeProcessHandle();
            SafeThreadHandle threadSH = new SafeThreadHandle();
            SafeUserTokenHandle primaryToken = null;

            try {
                // Output the command line...
                StreamWriter sw = new StreamWriter(output, Encoding.UTF8);
                sw.Write(currentDir);
                sw.Write("> ");
                // 'true' command line is used in case the command line points to
                // a response file
                sw.WriteLine(trueCmdLine != null ? trueCmdLine : cmd);
                sw.WriteLine();
                sw.WriteLine();
                sw.Flush();

                NativeMethods.STARTUPINFO si = new NativeMethods.STARTUPINFO();

                si.cb = Marshal.SizeOf(si);
#if FEATURE_PAL
                si.dwFlags = NativeMethods.STARTF_USESTDHANDLES;
#else //!FEATURE_PAL
                si.dwFlags = NativeMethods.STARTF_USESTDHANDLES | NativeMethods.STARTF_USESHOWWINDOW;
                si.wShowWindow = NativeMethods.SW_HIDE;
#endif //!FEATURE_PAL
                si.hStdOutput = output.SafeFileHandle;
                si.hStdError = error.SafeFileHandle;
                si.hStdInput = new SafeFileHandle(UnsafeNativeMethods.GetStdHandle(NativeMethods.STD_INPUT_HANDLE), false);

                //
                // Prepare the environment
                //
#if PLATFORM_UNIX

                StringDictionary environment = new CaseSensitiveStringDictionary();

#else

                StringDictionary environment = new StringDictionary ();

#endif // PLATFORM_UNIX

                // Add the current environment
                foreach ( DictionaryEntry entry in Environment.GetEnvironmentVariables () )
                    environment[(string) entry.Key] = (string) entry.Value;

                // Add the flag to indicate restricted security in the process
                environment["_ClrRestrictSecAttributes"] = "1";

                #if DEBUG
                environment["OANOCACHE"] = "1";
                #endif

                // set up the environment block parameter
                byte[] environmentBytes = EnvironmentBlock.ToByteArray(environment, false);
                fixed (byte* environmentBytesPtr = environmentBytes) {
                    IntPtr environmentPtr = new IntPtr((void*)environmentBytesPtr);

                    if (userToken == null || userToken.IsInvalid) {
                        RuntimeHelpers.PrepareConstrainedRegions();
                        try {} finally {
                           success = NativeMethods.CreateProcess(
                                                       null,       // String lpApplicationName, 
                                                       new StringBuilder(cmd), // String lpCommandLine, 
                                                       null,       // SECURITY_ATTRIBUTES lpProcessAttributes, 
                                                       null,       // SECURITY_ATTRIBUTES lpThreadAttributes, 
                                                       true,       // bool bInheritHandles, 
                                                       0,          // int dwCreationFlags, 
                                                       environmentPtr, // IntPtr lpEnvironment, 
                                                       currentDir, // String lpCurrentDirectory, 
                                                       si,         // STARTUPINFO lpStartupInfo, 
                                                       pi);        // PROCESS_INFORMATION lpProcessInformation);
                            if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
                                procSH.InitialSetHandle(pi.hProcess);  
                            if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
                               threadSH.InitialSetHandle(pi.hThread);
                        }
                    }
                    else {
#if FEATURE_PAL
                        throw new NotSupportedException();
#else
                        success = SafeUserTokenHandle.DuplicateTokenEx(
                                                    userToken,
                                                    NativeMethods.TOKEN_ALL_ACCESS,
                                                    null,
                                                    NativeMethods.IMPERSONATION_LEVEL_SecurityImpersonation,
                                                    NativeMethods.TOKEN_TYPE_TokenPrimary,
                                                    out primaryToken
                                                    );


                        if (success) {
                            RuntimeHelpers.PrepareConstrainedRegions();
                            try {} finally {
                               success = NativeMethods.CreateProcessAsUser(
                                                           primaryToken,  // int token,
                                                           null,       // String lpApplicationName, 
                                                           cmd,        // String lpCommandLine, 
                                                           null,       // SECURITY_ATTRIBUTES lpProcessAttributes, 
                                                           null,       // SECURITY_ATTRIBUTES lpThreadAttributes, 
                                                           true,       // bool bInheritHandles, 
                                                           0,          // int dwCreationFlags, 
                                                           new HandleRef(null, environmentPtr), // IntPtr lpEnvironment, 
                                                           currentDir, // String lpCurrentDirectory, 
                                                           si,         // STARTUPINFO lpStartupInfo, 
                                                           pi);        // PROCESS_INFORMATION lpProcessInformation);
                               if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
                                   procSH.InitialSetHandle(pi.hProcess);  
                               if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE)
                                  threadSH.InitialSetHandle(pi.hThread);
                            }
                        }
#endif // !FEATURE_PAL
                    }
                }
            }
            finally {
                // Close the file handles
                if (!success && (primaryToken != null && !primaryToken.IsInvalid)) {
                    primaryToken.Close();
                    primaryToken = null;
                }

                output.Close();
                error.Close();
            }
            
            if (success) {

                try {
                    bool signaled;
                    ProcessWaitHandle pwh = null;
                    try {
                        pwh = new ProcessWaitHandle(procSH);
                        signaled = pwh.WaitOne(ProcessTimeOut, false);
                    } finally {
                        if (pwh != null)
                            pwh.Close();
                    }

                    // Check for timeout
                    if (!signaled) {
                        throw new ExternalException(SR.GetString(SR.ExecTimeout, cmd), NativeMethods.WAIT_TIMEOUT);
                    }

                    // Check the process's exit code
                    int status = NativeMethods.STILL_ACTIVE;
                    if (!NativeMethods.GetExitCodeProcess(procSH, out status)) {
                        throw new ExternalException(SR.GetString(SR.ExecCantGetRetCode, cmd), Marshal.GetLastWin32Error());
                    }

                    retValue = status;
                }
                finally {
                    procSH.Close();
                    threadSH.Close();
                    if (primaryToken != null && !primaryToken.IsInvalid)
                        primaryToken.Close();
                }
            }
            else {
                int err = Marshal.GetLastWin32Error();
                if (err == NativeMethods.ERROR_NOT_ENOUGH_MEMORY)
                    throw new OutOfMemoryException();

                Win32Exception win32Exception = new Win32Exception(err);
                ExternalException ex = new ExternalException(SR.GetString(SR.ExecCantExec, cmd), win32Exception);
                throw ex;
            }

            return retValue;
        }
        //
        // METHODS
        //

        /// <devdoc>
        ///     Helper to close a thread handle.
        /// </devdoc>
        /// <internalonly/>
        private static void CloseThreadHandle(SafeThreadHandle handle) {
            if (handle != null) {
                handle.Close();
            }
        }
        private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine)
        {
            IntSecurity.UnmanagedCode.Demand();
            if ((outputName == null) || (outputName.Length == 0))
            {
                outputName = tempFiles.AddExtension("out");
            }
            if ((errorName == null) || (errorName.Length == 0))
            {
                errorName = tempFiles.AddExtension("err");
            }
            FileStream stream  = CreateInheritedFile(outputName);
            FileStream stream2 = CreateInheritedFile(errorName);
            bool       flag    = false;

            Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION();
            Microsoft.Win32.SafeHandles.SafeProcessHandle         processHandle        = new Microsoft.Win32.SafeHandles.SafeProcessHandle();
            Microsoft.Win32.SafeHandles.SafeThreadHandle          handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle();
            SafeUserTokenHandle hNewToken = null;

            try
            {
                Microsoft.Win32.NativeMethods.STARTUPINFO startupinfo;
                StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
                writer.Write(currentDir);
                writer.Write("> ");
                writer.WriteLine((trueCmdLine != null) ? trueCmdLine : cmd);
                writer.WriteLine();
                writer.WriteLine();
                writer.Flush();
                startupinfo = new Microsoft.Win32.NativeMethods.STARTUPINFO {
                    cb          = Marshal.SizeOf(startupinfo),
                    dwFlags     = 0x101,
                    wShowWindow = 0,
                    hStdOutput  = stream.SafeFileHandle,
                    hStdError   = stream2.SafeFileHandle,
                    hStdInput   = new SafeFileHandle(Microsoft.Win32.UnsafeNativeMethods.GetStdHandle(-10), false)
                };
                StringDictionary sd = new StringDictionary();
                foreach (DictionaryEntry entry in Environment.GetEnvironmentVariables())
                {
                    sd[(string)entry.Key] = (string)entry.Value;
                }
                sd["_ClrRestrictSecAttributes"] = "1";
                byte[] buffer = EnvironmentBlock.ToByteArray(sd, false);
                try
                {
                    fixed(byte *numRef = buffer)
                    {
                        IntPtr lpEnvironment = new IntPtr((void *)numRef);

                        if ((userToken == null) || userToken.IsInvalid)
                        {
                            RuntimeHelpers.PrepareConstrainedRegions();
                            try
                            {
                                goto Label_0325;
                            }
                            finally
                            {
                                flag = Microsoft.Win32.NativeMethods.CreateProcess(null, new StringBuilder(cmd), null, null, true, 0, lpEnvironment, currentDir, startupinfo, lpProcessInformation);
                                if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                                {
                                    processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                                }
                                if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                                {
                                    handle2.InitialSetHandle(lpProcessInformation.hThread);
                                }
                            }
                        }
                        flag = SafeUserTokenHandle.DuplicateTokenEx(userToken, 0xf01ff, null, 2, 1, out hNewToken);
                        if (flag)
                        {
                            RuntimeHelpers.PrepareConstrainedRegions();
                            try
                            {
                            }
                            finally
                            {
                                flag = Microsoft.Win32.NativeMethods.CreateProcessAsUser(hNewToken, null, cmd, null, null, true, 0, new HandleRef(null, lpEnvironment), currentDir, startupinfo, lpProcessInformation);
                                if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                                {
                                    processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                                }
                                if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                                {
                                    handle2.InitialSetHandle(lpProcessInformation.hThread);
                                }
                            }
                        }
                    }
                }
                finally
                {
                    numRef = null;
                }
            }
            finally
            {
                if ((!flag && (hNewToken != null)) && !hNewToken.IsInvalid)
                {
                    hNewToken.Close();
                    hNewToken = null;
                }
                stream.Close();
                stream2.Close();
            }
Label_0325:
            if (flag)
            {
                try
                {
                    bool flag2;
                    ProcessWaitHandle handle4 = null;
                    try
                    {
                        handle4 = new ProcessWaitHandle(processHandle);
                        flag2   = handle4.WaitOne(0x927c0, false);
                    }
                    finally
                    {
                        if (handle4 != null)
                        {
                            handle4.Close();
                        }
                    }
                    if (!flag2)
                    {
                        throw new ExternalException(SR.GetString("ExecTimeout", new object[] { cmd }), 0x102);
                    }
                    int exitCode = 0x103;
                    if (!Microsoft.Win32.NativeMethods.GetExitCodeProcess(processHandle, out exitCode))
                    {
                        throw new ExternalException(SR.GetString("ExecCantGetRetCode", new object[] { cmd }), Marshal.GetLastWin32Error());
                    }
                    return(exitCode);
                }
                finally
                {
                    processHandle.Close();
                    handle2.Close();
                    if ((hNewToken != null) && !hNewToken.IsInvalid)
                    {
                        hNewToken.Close();
                    }
                }
            }
            int error = Marshal.GetLastWin32Error();

            if (error == 8)
            {
                throw new OutOfMemoryException();
            }
            Win32Exception    inner      = new Win32Exception(error);
            ExternalException exception2 = new ExternalException(SR.GetString("ExecCantExec", new object[] { cmd }), inner);

            throw exception2;
        }
 private bool StartWithCreateProcess(ProcessStartInfo startInfo)
 {
     if ((startInfo.StandardOutputEncoding != null) && !startInfo.RedirectStandardOutput)
     {
         throw new InvalidOperationException(SR.GetString("StandardOutputEncodingNotAllowed"));
     }
     if ((startInfo.StandardErrorEncoding != null) && !startInfo.RedirectStandardError)
     {
         throw new InvalidOperationException(SR.GetString("StandardErrorEncodingNotAllowed"));
     }
     if (this.disposed)
     {
         throw new ObjectDisposedException(base.GetType().Name);
     }
     StringBuilder cmdLine = BuildCommandLine(startInfo.FileName, startInfo.Arguments);
     Microsoft.Win32.NativeMethods.STARTUPINFO lpStartupInfo = new Microsoft.Win32.NativeMethods.STARTUPINFO();
     Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION();
     Microsoft.Win32.SafeHandles.SafeProcessHandle processHandle = new Microsoft.Win32.SafeHandles.SafeProcessHandle();
     Microsoft.Win32.SafeHandles.SafeThreadHandle handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle();
     int error = 0;
     SafeFileHandle parentHandle = null;
     SafeFileHandle handle4 = null;
     SafeFileHandle handle5 = null;
     GCHandle handle6 = new GCHandle();
     lock (s_CreateProcessLock)
     {
         try
         {
             bool flag;
             if ((startInfo.RedirectStandardInput || startInfo.RedirectStandardOutput) || startInfo.RedirectStandardError)
             {
                 if (startInfo.RedirectStandardInput)
                 {
                     this.CreatePipe(out parentHandle, out lpStartupInfo.hStdInput, true);
                 }
                 else
                 {
                     lpStartupInfo.hStdInput = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-10), false);
                 }
                 if (startInfo.RedirectStandardOutput)
                 {
                     this.CreatePipe(out handle4, out lpStartupInfo.hStdOutput, false);
                 }
                 else
                 {
                     lpStartupInfo.hStdOutput = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-11), false);
                 }
                 if (startInfo.RedirectStandardError)
                 {
                     this.CreatePipe(out handle5, out lpStartupInfo.hStdError, false);
                 }
                 else
                 {
                     lpStartupInfo.hStdError = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-12), false);
                 }
                 lpStartupInfo.dwFlags = 0x100;
             }
             int creationFlags = 0;
             if (startInfo.CreateNoWindow)
             {
                 creationFlags |= 0x8000000;
             }
             IntPtr zero = IntPtr.Zero;
             if (startInfo.environmentVariables != null)
             {
                 bool unicode = false;
                 if (ProcessManager.IsNt)
                 {
                     creationFlags |= 0x400;
                     unicode = true;
                 }
                 handle6 = GCHandle.Alloc(EnvironmentBlock.ToByteArray(startInfo.environmentVariables, unicode), GCHandleType.Pinned);
                 zero = handle6.AddrOfPinnedObject();
             }
             string workingDirectory = startInfo.WorkingDirectory;
             if (workingDirectory == string.Empty)
             {
                 workingDirectory = Environment.CurrentDirectory;
             }
             if (startInfo.UserName.Length != 0)
             {
                 Microsoft.Win32.NativeMethods.LogonFlags logonFlags = 0;
                 if (startInfo.LoadUserProfile)
                 {
                     logonFlags = Microsoft.Win32.NativeMethods.LogonFlags.LOGON_WITH_PROFILE;
                 }
                 IntPtr password = IntPtr.Zero;
                 try
                 {
                     if (startInfo.Password == null)
                     {
                         password = Marshal.StringToCoTaskMemUni(string.Empty);
                     }
                     else
                     {
                         password = Marshal.SecureStringToCoTaskMemUnicode(startInfo.Password);
                     }
                     RuntimeHelpers.PrepareConstrainedRegions();
                     try
                     {
                     }
                     finally
                     {
                         flag = Microsoft.Win32.NativeMethods.CreateProcessWithLogonW(startInfo.UserName, startInfo.Domain, password, logonFlags, null, cmdLine, creationFlags, zero, workingDirectory, lpStartupInfo, lpProcessInformation);
                         if (!flag)
                         {
                             error = Marshal.GetLastWin32Error();
                         }
                         if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                         }
                         if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             handle2.InitialSetHandle(lpProcessInformation.hThread);
                         }
                     }
                     if (!flag)
                     {
                         if ((error != 0xc1) && (error != 0xd8))
                         {
                             throw new Win32Exception(error);
                         }
                         throw new Win32Exception(error, SR.GetString("InvalidApplication"));
                     }
                     goto Label_03E0;
                 }
                 finally
                 {
                     if (password != IntPtr.Zero)
                     {
                         Marshal.ZeroFreeCoTaskMemUnicode(password);
                     }
                 }
             }
             RuntimeHelpers.PrepareConstrainedRegions();
             try
             {
             }
             finally
             {
                 flag = Microsoft.Win32.NativeMethods.CreateProcess(null, cmdLine, null, null, true, creationFlags, zero, workingDirectory, lpStartupInfo, lpProcessInformation);
                 if (!flag)
                 {
                     error = Marshal.GetLastWin32Error();
                 }
                 if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                 {
                     processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                 }
                 if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                 {
                     handle2.InitialSetHandle(lpProcessInformation.hThread);
                 }
             }
             if (!flag)
             {
                 if ((error != 0xc1) && (error != 0xd8))
                 {
                     throw new Win32Exception(error);
                 }
                 throw new Win32Exception(error, SR.GetString("InvalidApplication"));
             }
         }
         finally
         {
             if (handle6.IsAllocated)
             {
                 handle6.Free();
             }
             lpStartupInfo.Dispose();
         }
     }
 Label_03E0:
     if (startInfo.RedirectStandardInput)
     {
         this.standardInput = new StreamWriter(new FileStream(parentHandle, FileAccess.Write, 0x1000, false), Console.InputEncoding, 0x1000);
         this.standardInput.AutoFlush = true;
     }
     if (startInfo.RedirectStandardOutput)
     {
         Encoding encoding = (startInfo.StandardOutputEncoding != null) ? startInfo.StandardOutputEncoding : Console.OutputEncoding;
         this.standardOutput = new StreamReader(new FileStream(handle4, FileAccess.Read, 0x1000, false), encoding, true, 0x1000);
     }
     if (startInfo.RedirectStandardError)
     {
         Encoding encoding2 = (startInfo.StandardErrorEncoding != null) ? startInfo.StandardErrorEncoding : Console.OutputEncoding;
         this.standardError = new StreamReader(new FileStream(handle5, FileAccess.Read, 0x1000, false), encoding2, true, 0x1000);
     }
     bool flag3 = false;
     if (!processHandle.IsInvalid)
     {
         this.SetProcessHandle(processHandle);
         this.SetProcessId(lpProcessInformation.dwProcessId);
         handle2.Close();
         flag3 = true;
     }
     return flag3;
 }
 private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine)
 {
     IntSecurity.UnmanagedCode.Demand();
     if ((outputName == null) || (outputName.Length == 0))
     {
         outputName = tempFiles.AddExtension("out");
     }
     if ((errorName == null) || (errorName.Length == 0))
     {
         errorName = tempFiles.AddExtension("err");
     }
     FileStream stream = CreateInheritedFile(outputName);
     FileStream stream2 = CreateInheritedFile(errorName);
     bool flag = false;
     Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION();
     Microsoft.Win32.SafeHandles.SafeProcessHandle processHandle = new Microsoft.Win32.SafeHandles.SafeProcessHandle();
     Microsoft.Win32.SafeHandles.SafeThreadHandle handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle();
     SafeUserTokenHandle hNewToken = null;
     try
     {
         Microsoft.Win32.NativeMethods.STARTUPINFO startupinfo;
         StreamWriter writer = new StreamWriter(stream, Encoding.UTF8);
         writer.Write(currentDir);
         writer.Write("> ");
         writer.WriteLine((trueCmdLine != null) ? trueCmdLine : cmd);
         writer.WriteLine();
         writer.WriteLine();
         writer.Flush();
         startupinfo = new Microsoft.Win32.NativeMethods.STARTUPINFO {
             cb = Marshal.SizeOf(startupinfo),
             dwFlags = 0x101,
             wShowWindow = 0,
             hStdOutput = stream.SafeFileHandle,
             hStdError = stream2.SafeFileHandle,
             hStdInput = new SafeFileHandle(Microsoft.Win32.UnsafeNativeMethods.GetStdHandle(-10), false)
         };
         StringDictionary sd = new StringDictionary();
         foreach (DictionaryEntry entry in Environment.GetEnvironmentVariables())
         {
             sd[(string) entry.Key] = (string) entry.Value;
         }
         sd["_ClrRestrictSecAttributes"] = "1";
         byte[] buffer = EnvironmentBlock.ToByteArray(sd, false);
         try
         {
             fixed (byte* numRef = buffer)
             {
                 IntPtr lpEnvironment = new IntPtr((void*) numRef);
                 if ((userToken == null) || userToken.IsInvalid)
                 {
                     RuntimeHelpers.PrepareConstrainedRegions();
                     try
                     {
                         goto Label_0325;
                     }
                     finally
                     {
                         flag = Microsoft.Win32.NativeMethods.CreateProcess(null, new StringBuilder(cmd), null, null, true, 0, lpEnvironment, currentDir, startupinfo, lpProcessInformation);
                         if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                         }
                         if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             handle2.InitialSetHandle(lpProcessInformation.hThread);
                         }
                     }
                 }
                 flag = SafeUserTokenHandle.DuplicateTokenEx(userToken, 0xf01ff, null, 2, 1, out hNewToken);
                 if (flag)
                 {
                     RuntimeHelpers.PrepareConstrainedRegions();
                     try
                     {
                     }
                     finally
                     {
                         flag = Microsoft.Win32.NativeMethods.CreateProcessAsUser(hNewToken, null, cmd, null, null, true, 0, new HandleRef(null, lpEnvironment), currentDir, startupinfo, lpProcessInformation);
                         if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             processHandle.InitialSetHandle(lpProcessInformation.hProcess);
                         }
                         if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE))
                         {
                             handle2.InitialSetHandle(lpProcessInformation.hThread);
                         }
                     }
                 }
             }
         }
         finally
         {
             numRef = null;
         }
     }
     finally
     {
         if ((!flag && (hNewToken != null)) && !hNewToken.IsInvalid)
         {
             hNewToken.Close();
             hNewToken = null;
         }
         stream.Close();
         stream2.Close();
     }
 Label_0325:
     if (flag)
     {
         try
         {
             bool flag2;
             ProcessWaitHandle handle4 = null;
             try
             {
                 handle4 = new ProcessWaitHandle(processHandle);
                 flag2 = handle4.WaitOne(0x927c0, false);
             }
             finally
             {
                 if (handle4 != null)
                 {
                     handle4.Close();
                 }
             }
             if (!flag2)
             {
                 throw new ExternalException(SR.GetString("ExecTimeout", new object[] { cmd }), 0x102);
             }
             int exitCode = 0x103;
             if (!Microsoft.Win32.NativeMethods.GetExitCodeProcess(processHandle, out exitCode))
             {
                 throw new ExternalException(SR.GetString("ExecCantGetRetCode", new object[] { cmd }), Marshal.GetLastWin32Error());
             }
             return exitCode;
         }
         finally
         {
             processHandle.Close();
             handle2.Close();
             if ((hNewToken != null) && !hNewToken.IsInvalid)
             {
                 hNewToken.Close();
             }
         }
     }
     int error = Marshal.GetLastWin32Error();
     if (error == 8)
     {
         throw new OutOfMemoryException();
     }
     Win32Exception inner = new Win32Exception(error);
     ExternalException exception2 = new ExternalException(SR.GetString("ExecCantExec", new object[] { cmd }), inner);
     throw exception2;
 }