Example #1
0
bool MWinNamedPipeServer::Connect(void)
	{
	if(mClientConnected==true)
		{
		DisconnectNamedPipe(mhPipe);
		}

	if(ConnectNamedPipe(mhPipe,NULL)==FALSE)
		{
		// It is possible that a client connects before the ConnectNamedPipe is invoked after CreateNamed Pipe.
		// Connections is still good! 
		//  Ref: https://msdn.microsoft.com/query/dev15.query?appId=Dev15IDEF1&l=EN-US&k=k(NAMEDPIPEAPI%2FConnectNamedPipe);k(ConnectNamedPipe);k(DevLang-C%2B%2B);k(TargetOS-Windows)&rd=true
		DWORD error=GetLastError();
		if(error==ERROR_PIPE_CONNECTED)
			{
			mClientConnected=true;
			return true;
			}

		mClientConnected=false;
		return false;
		}

	mClientConnected=true;
	return true;
	}
Example #2
0
BOOL NamedPipeInputFuzzer::Init()
{
    BOOL bResult=FALSE;

    dibf_pipe = CreateNamedPipe(_T("\\\\.\\pipe\\dibf_pipe"),
                                PIPE_ACCESS_INBOUND,
                                PIPE_TYPE_MESSAGE|PIPE_READMODE_MESSAGE|PIPE_WAIT|PIPE_REJECT_REMOTE_CLIENTS,
                                1,
                                MAX_BUFSIZE/2,
                                MAX_BUFSIZE/2,
                                0,
                                NULL);
    if(dibf_pipe!=INVALID_HANDLE_VALUE) {
        TPRINT(VERBOSITY_DEFAULT, _T("Named pipe created, waiting for connection...\n"));
        if(ConnectNamedPipe(dibf_pipe, NULL)?TRUE:(GetLastError()==ERROR_PIPE_CONNECTED)) {
            TPRINT(VERBOSITY_DEFAULT, _T("Fuzzing client connected to named pipe\n"));
            inputThread = CreateThread(NULL, 0, FuzzInputProc, this, 0, NULL);
            if(inputThread) {
                bResult = TRUE;
            }
            else {
                TPRINT(VERBOSITY_ERROR, _T("Failed to create fuzz input thread with error %#.8x\n"), GetLastError());
            }
        }
    }
    return bResult;
}
Example #3
0
static RPC_STATUS rpcrt4_conn_listen_pipe(RpcConnection_np *npc)
{
  if (npc->listening)
    return RPC_S_OK;

  npc->listening = TRUE;
  for (;;)
  {
      if (ConnectNamedPipe(npc->pipe, &npc->ovl))
          return RPC_S_OK;

      switch(GetLastError())
      {
      case ERROR_PIPE_CONNECTED:
          SetEvent(npc->ovl.hEvent);
          return RPC_S_OK;
      case ERROR_IO_PENDING:
          /* will be completed in rpcrt4_protseq_np_wait_for_new_connection */
          return RPC_S_OK;
      case ERROR_NO_DATA_DETECTED:
          /* client has disconnected, retry */
          DisconnectNamedPipe( npc->pipe );
          break;
      default:
          npc->listening = FALSE;
          WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
          return RPC_S_OUT_OF_RESOURCES;
      }
  }
}
Example #4
0
// References:
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa365588(v=vs.85).aspx
static HANDLE
connect_pipe(const char* app_name) {
	HANDLE pipe = INVALID_HANDLE_VALUE;
	char username[UNLEN + 1];
	DWORD unlen = UNLEN + 1;
	if (GetUserNameA(username, &unlen)) {
		// add username to the pipe path so it will not clash with other users' pipes.
		char pipe_name[MAX_PATH];
		sprintf(pipe_name, "\\\\.\\pipe\\%s\\%s_pipe", username, app_name);
		const size_t buffer_size = 1024;
		// create the pipe
		pipe = CreateNamedPipeA(pipe_name,
			PIPE_ACCESS_DUPLEX,
			PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
			PIPE_UNLIMITED_INSTANCES,
			buffer_size,
			buffer_size,
			NMPWAIT_USE_DEFAULT_WAIT,
			&g_securityAttributes);

		if (pipe != INVALID_HANDLE_VALUE) {
			// try to connect to the named pipe
			// NOTE: this is a blocking call
			if (FALSE == ConnectNamedPipe(pipe, NULL)) {
				// fail to connect the pipe
				CloseHandle(pipe);
				pipe = INVALID_HANDLE_VALUE;
			}
		}
	}
	return pipe;
}
Example #5
0
int win32_fifo_mkfifo(const char *path)
{
    HANDLE ret;
    win32_fifo_close();
#ifdef WANT_WIN32_UNICODE
    wchar_t *str;
    if(win32_utf8_wide(path,&str,NULL) == 0)
    {
        fprintf(stderr,"Cannot get FIFO name, likely out of memory\n");
        return -1;
    }
#if (DEBUG == 1)
    fwprintf(stderr,L"CreateNamedPipeW %ws\n", str);
#endif
    ret = CreateNamedPipeW(str,PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,PIPE_TYPE_BYTE,1,255,255,0,NULL);
    free(str);
#else
#if (DEBUG == 1)
    fprintf(stderr,"CreateNamedPipeA %s\n", path);
#endif
    ret = CreateNamedPipeA(path,PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED,PIPE_TYPE_BYTE,1,255,255,0,NULL);
#endif /* WANT_WIN32_UNICODE */
    if(ret == INVALID_HANDLE_VALUE) return -1;

    fifohandle = ret;
    /* Wait for client */
    ConnectNamedPipe(fifohandle,&ov1);
    WaitForSingleObjectEx(fifohandle,INFINITE,TRUE);
    return 0;
}
Example #6
0
bool ezPipeChannel_win::ProcessConnection()
{
  EZ_ASSERT_DEBUG(m_ThreadId == ezThreadUtils::GetCurrentThreadID(), "Function must be called from worker thread!");
  if (m_InputState.IsPending)
    m_InputState.IsPending = false;

  BOOL res = ConnectNamedPipe(m_PipeHandle, &m_InputState.Context.Overlapped);
  if (res)
  {
    //EZ_REPORT_FAILURE
    return false;
  }

  ezUInt32 error = GetLastError();
  switch (error)
  {
    case ERROR_IO_PENDING:
      m_InputState.IsPending = true;
      break;
    case ERROR_PIPE_CONNECTED:
      m_Connected = true;
      break;
    case ERROR_NO_DATA:
      return false;
    default:
      ezLog::Error("Could not connect to pipe (Error code: {0})", ezArgErrorCode(error));
      return false;
  }

  return true;
}
Example #7
0
// Communicaton Thread Pool, handles the incoming xCmd.exe requests
void CommunicationPoolThread(PVOID)
{
    HANDLE hPipe = NULL;
    
    for (;;)
    {
        SECURITY_ATTRIBUTES SecAttrib = {0};
        SECURITY_DESCRIPTOR SecDesc;
        InitializeSecurityDescriptor(&SecDesc, SECURITY_DESCRIPTOR_REVISION);
        SetSecurityDescriptorDacl(&SecDesc, TRUE, NULL, TRUE);

        SecAttrib.nLength = sizeof(SECURITY_ATTRIBUTES);
        SecAttrib.lpSecurityDescriptor = &SecDesc;;
        SecAttrib.bInheritHandle = TRUE;

        // Create communication pipe
        hPipe = CreateNamedPipe(
            _T("\\\\.\\pipe\\")XCMDCOMM, 
            PIPE_ACCESS_DUPLEX, 
            PIPE_TYPE_MESSAGE | PIPE_WAIT, 
            PIPE_UNLIMITED_INSTANCES,
            0,
            0,
            (DWORD)-1,
            &SecAttrib);

        if ( hPipe != NULL )
        {
            // Waiting for client to connect to this pipe
            ConnectNamedPipe( hPipe, NULL );
            _beginthread( CommunicationPipeThreadProc, 0, (void*)hPipe);
        }
    }
}
Example #8
0
DWORD ChildProcess::ListenerThread()
{
	// wait for someone to connect to the pipe
	if (ConnectNamedPipe(hPipe_, NULL) || GetLastError() == ERROR_PIPE_CONNECTED)
	{
		// Acquire the lock while writing to processOutput_
		char buffer[1024];
		DWORD dwRead;
		while (ReadFile(hPipe_, buffer, sizeof(buffer) - 1, &dwRead, NULL) != FALSE)
		{
			if (dwRead > 0)
			{
				CSingleLock locker(&outputLock_);
				buffer[dwRead] = 0;
				OutputDebugStringA(buffer);
				processOutput_ += AnsiToUnicode(buffer);
			}
			SetEvent(hOutputAvailable_);
		}
	}
	else
	{
		OutputDebugString(L"Connect failed.\n");
	}

	DisconnectNamedPipe(hPipe_);

	return 0;
}
void CWE253_Incorrect_Check_of_Function_Return_Value__char_w32CreateNamedPipe_01_bad()
{
    {
        char * pipeName = "\\\\.\\pipe\\mypipe";
        HANDLE hPipe = INVALID_HANDLE_VALUE;
        BOOL fConnected = FALSE;
        hPipe = CreateNamedPipeA(
                    pipeName,
                    FILE_FLAG_FIRST_PIPE_INSTANCE, /* FILE_FLAG_FIRST_PIPE_INSTANCE - this flag must be set */
                    PIPE_TYPE_MESSAGE |
                    PIPE_READMODE_MESSAGE |
                    PIPE_WAIT,
                    PIPE_UNLIMITED_INSTANCES,
                    BUFFER_SIZE,
                    BUFFER_SIZE,
                    NMPWAIT_USE_DEFAULT_WAIT,
                    NULL);
        /* FLAW: If CreateNamedPipeA() failed, the return value will be INVALID_HANDLE_VALUE,
           but we are checking to see if the return value is NULL */
        if (hPipe == NULL)
        {
            exit(1);
        }
        fConnected = ConnectNamedPipe(hPipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);
        /* We'll leave out most of the implementation since it has nothing to do with the CWE
         * and since the checkers are looking for certain function calls anyway */
        CloseHandle(hPipe);
    }
}
static void good1()
{
    {
        char * pipeName = "\\\\.\\pipe\\mypipe";
        HANDLE hPipe = INVALID_HANDLE_VALUE;
        BOOL fConnected = FALSE;
        hPipe = CreateNamedPipeA(
                    pipeName,
                    FILE_FLAG_FIRST_PIPE_INSTANCE, /* FILE_FLAG_FIRST_PIPE_INSTANCE - this flag must be set */
                    PIPE_TYPE_MESSAGE |
                    PIPE_READMODE_MESSAGE |
                    PIPE_WAIT,
                    PIPE_UNLIMITED_INSTANCES,
                    BUFFER_SIZE,
                    BUFFER_SIZE,
                    NMPWAIT_USE_DEFAULT_WAIT,
                    NULL);
        /* FIX: check for the correct return value */
        if (hPipe == INVALID_HANDLE_VALUE)
        {
            exit(1);
        }
        fConnected = ConnectNamedPipe(hPipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);
        /* We'll leave out most of the implementation since it has nothing to do with the CWE
         * and since the checkers are looking for certain function calls anyway */
        CloseHandle(hPipe);
    }
}
Example #11
0
    void NamedPipe::Initialize()
    {
        SECURITY_ATTRIBUTES attr;
        attr.bInheritHandle = TRUE;
        attr.nLength = sizeof(SECURITY_ATTRIBUTES);
        attr.lpSecurityDescriptor = NULL;

        mHandle = CreateFileA(
            mName.c_str(),
            GENERIC_READ | GENERIC_WRITE,
            0,
            &attr,
            OPEN_EXISTING,
            0,
            NULL);

        if (mHandle == INVALID_HANDLE) {
            mHandle = CreateNamedPipeA(
                mName.c_str(),
                PIPE_ACCESS_DUPLEX,
                PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT,
                PIPE_UNLIMITED_INSTANCES,
                65536,
                65536,
                NMPWAIT_WAIT_FOREVER,
                &attr);

            if (mHandle == INVALID_HANDLE) {
                throw NamedPipeException(GetLastErrorString());
            } else if (!ConnectNamedPipe(mHandle, NULL) && GetLastError() != ERROR_PIPE_CONNECTED) {
                throw NamedPipeException(GetLastErrorString());
            }
        }
    }
void CWE252_Unchecked_Return_Value__char_w32CreateNamedPipe_04_bad()
{
    if(STATIC_CONST_TRUE)
    {
        {
            char * pipeName = "\\\\.\\pipe\\mypipe";
            HANDLE hPipe = INVALID_HANDLE_VALUE;
            BOOL fConnected = FALSE;
            hPipe = CreateNamedPipeA(
                        pipeName,
                        FILE_FLAG_FIRST_PIPE_INSTANCE, /* FILE_FLAG_FIRST_PIPE_INSTANCE - this flag must be set */
                        PIPE_TYPE_MESSAGE |
                        PIPE_READMODE_MESSAGE |
                        PIPE_WAIT,
                        PIPE_UNLIMITED_INSTANCES,
                        BUFSIZE,
                        BUFSIZE,
                        NMPWAIT_USE_DEFAULT_WAIT,
                        NULL);
            /* FLAW: Do not check the return value */
            fConnected = ConnectNamedPipe(hPipe, NULL) ? TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);
            /* We'll leave out most of the implementation since it has nothing to do with the CWE
             * and since the checkers are looking for certain function calls anyway */
            CloseHandle(hPipe);
        }
    }
}
Example #13
0
HRESULT PipeStream::OnCustomRequested(
    HandleStream::AsyncContext* handle_context) {
  auto context = static_cast<AsyncContext*>(handle_context);
  BOOL succeeded;

  switch (context->type) {
    case PipeRequest::WaitForConnection:
      succeeded = ConnectNamedPipe(handle_, context);
      break;

    case PipeRequest::Transact:
      succeeded = TransactNamedPipe(handle_, context->buffer, context->length,
                                    context->buffer2, context->length2, nullptr,
                                    context);
      break;

    default:
      assert(false);
      return E_NOTIMPL;
  }

  DWORD error = GetLastError();

  if (!succeeded && error != ERROR_IO_PENDING) {
    if (error == ERROR_PIPE_CONNECTED && context->hEvent != NULL)
      SetEvent(context->hEvent);

    return __HRESULT_FROM_WIN32(error);
  }

  return S_OK;
}
Example #14
0
Piper::Piper()
{
	// Get tibias main module for future use
	baseAddress = (DWORD) GetModuleHandle(0);
	// Define a pipe name
	pipeName = L"\\\\.\\pipe\\piperpipe";
	// Create the pipe
	hPipe = CreateNamedPipe(pipeName, PIPE_ACCESS_DUPLEX, PIPE_TYPE_MESSAGE, 1, BUFFER_SIZE, BUFFER_SIZE, 5000, NULL);
	// If we didn't make it, tell the user something went wrong.
	if (hPipe == NULL || hPipe == INVALID_HANDLE_VALUE)
	{
		MessageBox(NULL, L"Error loading named pipe, please consult your software provider for support", L"Error!", MB_ICONSTOP);
	}
	// Wait for a client to connect to see the data down the pipe.
	ConnectNamedPipe(hPipe, NULL);
	// Send a message down the pipe to confirm it's working
	Send("SYSTEM OPERATIONAL");
	// Send the base address for good measure
	char *buff = new char[32];
	_itoa_s(baseAddress, buff, strlen(buff), 16);
	Send(buff);
	for (int i = 0; i < 10; i++)
	{
		Send("Testing");
		Sleep(1000);
	}
}
shared_ptr<InterprocessIo> InterprocessServer::Connect()
{
	shared_handle hPipe(CreateNamedPipe(
		GetPipeName(),
		PIPE_ACCESS_DUPLEX |       // read/write access
		FILE_FLAG_OVERLAPPED,
		PIPE_TYPE_MESSAGE |       // message type pipe
		PIPE_READMODE_MESSAGE |   // message-read mode
		PIPE_WAIT,                // non-blocking mode
		PIPE_UNLIMITED_INSTANCES, // max. instances
		BUF_SIZE,                  // output buffer size
		BUF_SIZE,                  // input buffer size
		NMPWAIT_USE_DEFAULT_WAIT, // client time-out
		NULL)					  // NULL DACL
	);
	if(!hPipe) {
		return shared_ptr<InterprocessIo>();
	}

	if(!ConnectNamedPipe(hPipe.get(), NULL) && (GetLastError()!=ERROR_PIPE_CONNECTED)) {
		return shared_ptr<InterprocessIo>();
	}

	return shared_ptr<InterprocessIo>(new InterprocessIo(hPipe));
}
Example #16
0
bool GWCAServer::ListenConnections()
{
	bool bConnected = false;
	HANDLE hPipe = NULL;

	port.Create(1);

	while (true)
	{
		Sleep(0);
		hPipe = CreateNamedPipe(
			m_cPipeName,
			PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
			PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
			PIPE_UNLIMITED_INSTANCES,
			BUFSIZE, BUFSIZE,
			1000, NULL);

		bConnected = (ConnectNamedPipe(hPipe, 0) == 1) ? true : (GetLastError() == ERROR_PIPE_CONNECTED);

		if(bConnected){
			port.AssociateFile(hPipe, (ULONG_PTR)hPipe);
			LPPIPEINST pOverlapped = (LPPIPEINST)GlobalAlloc(GPTR, sizeof(PIPEINST));
			ReadFile(hPipe,
				&pOverlapped->bmRequest,
				sizeof(pOverlapped->bmRequest),
				&pOverlapped->cbRead,
				(LPOVERLAPPED)pOverlapped);
		}else{
			CloseHandle(hPipe);
		}
	}
	return true;
}
Example #17
0
void __stdcall Watcher::pipeThread(Watcher *w)
{
	for (;;) {
		HANDLE pipe = w->pipe;
		WORD rv, myv = Base::instance()->getNVersion();
		DWORD rd;
		WORD cmd;
		if (!ConnectNamedPipe(pipe, NULL)) {
			Sleep(1000);
			continue;
		}

		ReadFile(pipe, &cmd, sizeof(cmd), &rd, NULL);
		WriteFile(pipe, &myv, sizeof(myv), &rd, NULL);
		if (!cmd) {
			ReadFile(pipe, &rv, sizeof(rv), &rd, NULL);
			if (HIBYTE(rv) > HIBYTE(myv) || (HIBYTE(rv) == HIBYTE(myv) && LOBYTE(rv) > LOBYTE(myv))) {
				w->terminate();
				return;
			}
		} else {
			char file[MAX_PATH + 1];
			ReadFile(pipe, file, sizeof(file), &rd, NULL);
			file[MAX_PATH] = 0;
			log(LL_DIAG, L_NEW L_DEL L_COMMAND "%s", file);
			Sleep(6000);
			Base::instance()->forceDeleteFile(std::string(file));
		}
		
		DisconnectNamedPipe(pipe);
	}
}
Example #18
0
static unsigned int __stdcall
_ecore_con_local_win32_listening(void *data)
{
   Ecore_Con_Server *svr;
   BOOL res;

   svr = (Ecore_Con_Server *)data;

   while (1)
     {
        res = ConnectNamedPipe(svr->pipe, NULL);
        if (!res)
          {
             ERR("Opening the connection to the client failed");
             CloseHandle(svr->pipe);
             svr->pipe = NULL;
          }
        break;
     }

   DBG("Client connected");

   printf(" ### %s\n", __FUNCTION__);
   _endthreadex(0);
   return 0;
}
Example #19
0
unsigned WINAPI pipe_listener(void *parameters) {
    while(1) {
        HANDLE pipe =  CreateNamedPipe(
                        pipeName,
                        PIPE_ACCESS_DUPLEX,
                        PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
                        PIPE_UNLIMITED_INSTANCES,
                        PIPE_BUFSIZE,
                        PIPE_BUFSIZE,
                        0,
                        NULL);
        BOOL clientConnected;
        if( pipe == INVALID_HANDLE_VALUE ) {
            printf("Error creating named pipe. Code %lu\n", GetLastError());
            return -1;
        }

        // True if client connects *after* server called ConnectNamedPipe 
        // or *between* CreateNamedPipe and ConnectNamedPipe
        clientConnected = 
            ConnectNamedPipe(pipe, NULL) ? TRUE : GetLastError()==ERROR_PIPE_CONNECTED;
        printf("Client connected!\n");

        if( !clientConnected ) {
            printf("Failure while listening for clients. Code %lu\n", GetLastError());
            CloseHandle(pipe);
            return -1;
        }
        printf("Create client thread\n");
        _beginthreadex(NULL, 0, fifo_rx, (PVOID)pipe, 0, 0);    
    }

    return 0;
}
void WinListener::create_pipe()
{
    _pipe = CreateNamedPipe(_pipename, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
                            PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,
                            PIPE_UNLIMITED_INSTANCES, PIPE_BUF_SIZE, PIPE_BUF_SIZE,
                            PIPE_TIMEOUT, NULL);
    if (_pipe == INVALID_HANDLE_VALUE) {
        THROW("CreateNamedPipe() failed %u", GetLastError());
    }
    if (ConnectNamedPipe(_pipe, &_overlap)) {
        THROW("ConnectNamedPipe() is not pending");
    }
    switch (GetLastError()) {
    case ERROR_IO_PENDING:
        DBG(0, "Pipe waits for connection");
        break;
    case ERROR_PIPE_CONNECTED: {
        DBG(0, "Pipe already connected");
        WinConnection *con = new WinConnection(_pipe, _process_loop);
        NamedPipe::ConnectionInterface &con_interface = _listener_interface.create();
        con->set_handler(&con_interface);
        con_interface.bind((NamedPipe::ConnectionRef)con);
        create_pipe();
        break;
    }
    default:
        THROW("ConnectNamedPipe() failed %u", GetLastError());
    }
}
Example #21
0
static int npipe_input_open(const char *pipe_name)
{
  static OVERLAPPED overlapped;
  static HANDLE hEvent;
  char PipeName[256];
  DWORD ret;
 

 hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
 memset( &overlapped, 0, sizeof(OVERLAPPED));
 overlapped.hEvent = hEvent;
	
  sprintf(PipeName, "\\\\.\\pipe\\%s", pipe_name);
  hPipe = CreateNamedPipe(PipeName, PIPE_ACCESS_DUPLEX|FILE_FLAG_OVERLAPPED, 
//    PIPE_WAIT|
  	PIPE_READMODE_BYTE |PIPE_TYPE_BYTE, 2, 
   0, PIPE_BUFFER_SIZE, 0, NULL);
  if (hPipe == INVALID_HANDLE_VALUE) {
    ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "Can't create Named Pipe %s : %ld",
    	pipe_name, GetLastError());
 	return -1;
  }
  ret = ConnectNamedPipe(hPipe, &overlapped);
	if ( (ret == 0)  && (ERROR_IO_PENDING!=GetLastError()) ){
    ctl->cmsg(CMSG_ERROR, VERB_NORMAL, "CnnectNamePipe(%ld) error %s",
    	GetLastError(), pipe_name);
        CloseHandle(hPipe);
  	    hPipe=NULL;
        return -1;
   }
//	WaitForSingleObject(overlapped.hEvent, 1000);
	CloseHandle(hEvent);
  return 0;
}
Example #22
0
BOOL CNeighbour::Connect(LPCTSTR lpPipeName, DWORD nMaxInstances, DWORD nTimeOut)
{
	if ( m_hPipe != INVALID_HANDLE_VALUE ) return FALSE;
	
	SECURITY_ATTRIBUTES sa;
	PSECURITY_DESCRIPTOR pSD;
	
	pSD = (PSECURITY_DESCRIPTOR) LocalAlloc(LPTR,SECURITY_DESCRIPTOR_MIN_LENGTH);
	if ( ! InitializeSecurityDescriptor(pSD, SECURITY_DESCRIPTOR_REVISION) )
	{
		LocalFree( (HLOCAL)pSD ); return FALSE;
	}
	if ( ! SetSecurityDescriptorDacl(pSD, TRUE, (PACL) NULL, FALSE) )
	{
		LocalFree( (HLOCAL)pSD ); return FALSE;
	}
	
	sa.nLength = sizeof(sa);
	sa.lpSecurityDescriptor = pSD; 
	sa.bInheritHandle = TRUE;

	m_hPipe = CreateNamedPipe( lpPipeName, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
		PIPE_TYPE_BYTE | PIPE_READMODE_BYTE, nMaxInstances, TEMP_BUFFER, TEMP_BUFFER, nTimeOut, &sa );
	
	if ( m_hPipe == INVALID_HANDLE_VALUE ) return FALSE;
	
	ZeroMemory( &m_pOverlapped, sizeof(OVERLAPPED) );
	m_pOverlapped.hEvent = m_pWakeup;
	
	ConnectNamedPipe( m_hPipe, &m_pOverlapped );
TRACE("CreateNamedPipe: %s\n", lpPipeName);
	
	StartThread();
	return TRUE;
}
Example #23
0
/* Return: amount of PDU data */
uint16_t MSTP_Get_Send(
    volatile struct mstp_port_struct_t * mstp_port,
    unsigned timeout)
{       /* milliseconds to wait for a packet */
    (void) mstp_port;
    (void) timeout;
    return 0;
}

uint16_t MSTP_Get_Reply(
    volatile struct mstp_port_struct_t * mstp_port,
    unsigned timeout)
{       /* milliseconds to wait for a packet */
    (void) mstp_port;
    (void) timeout;
    return 0;
}

static char Capture_Filename[32] = "mstp_20090123091200.cap";
static FILE *pFile = NULL;      /* stream pointer */
#if defined(_WIN32)
static HANDLE hPipe = INVALID_HANDLE_VALUE;     /* pipe handle */
static void named_pipe_create(
    char *pipe_name)
{
    fprintf(stdout, "mstpcap: Creating Named Pipe \"%s\"\n", pipe_name);
    /* create the pipe */
    while (hPipe == INVALID_HANDLE_VALUE)
    {
        /* use CreateFile rather than CreateNamedPipe */
        hPipe = CreateFile(
            pipe_name,
            GENERIC_READ |
            GENERIC_WRITE,
            0,
            NULL,
            OPEN_EXISTING,
            0,
            NULL);
        if (hPipe != INVALID_HANDLE_VALUE) {
            break;
        }
        /* if an error occured at handle creation */
        if (!WaitNamedPipe(pipe_name, 20000)) {
            printf("Could not open pipe: waited for 20sec!\n"
                "If this message was issued before the 20sec finished,\n"
                "then the pipe doesn't exist!\n");
            Exit_Requested = true;
            return;
        }
    }
    ConnectNamedPipe(hPipe, NULL);
}
static HANDLE_OR_FILEPTR
open_windows_pipe(const char *filename)
{
#ifdef WIN32
	HANDLE pipe;
	int result;

	pipe = CreateNamedPipe(filename,
		PIPE_ACCESS_OUTBOUND,          // write-only
		PIPE_TYPE_MESSAGE | PIPE_WAIT, // blocking writes
		1,                             // only allow one pipe
		70000,          // write buffer. GTH max is 64k
		10000,          // read buffer. We don't read
		0,              // default timeout
		0);             // no security attributes

	if (pipe == INVALID_HANDLE_VALUE) {
		die("Unable to create a named pipe. Giving up.");
	}

	result = ConnectNamedPipe(pipe, 0);
	if (!result) {
		die("Unabled to connect the named pipe. Giving up.");
	}

	return pipe;
#else
	die("Cannot open a windows named pipe on a non-windows OS. Giving up.");
	return 0;
#endif
}
Example #25
0
static unsigned int __stdcall
_ecore_con_local_win32_listening(void *data)
{
   Ecore_Con_Server *obj = data;
   Ecore_Con_Server_Data *svr = eo_data_scope_get(obj, ECORE_CON_SERVER_CLASS);
   BOOL res;

   while (1)
     {
        res = ConnectNamedPipe(svr->pipe, NULL);
        if (!res)
          {
             ERR("Opening the connection to the client failed");
             CloseHandle(svr->pipe);
             svr->pipe = NULL;
          }
        break;
     }

   DBG("Client connected");

   printf(" ### %s\n", __FUNCTION__);
   _endthreadex(0);
   return 0;
}
Example #26
0
void WritePipe::setup_pipe()
{
	// Create a pipe to send data
	_pipe = CreateNamedPipeA(
		_pipe_name.c_str(), // name of the pipe
		PIPE_ACCESS_OUTBOUND, // 1-way pipe -- send only
		PIPE_TYPE_BYTE | PIPE_WAIT, // send data as a byte stream
		1, // only allow 1 instance of this pipe
		0, // no outbound buffer
		0, // no inbound buffer
		10, // use default wait time
		NULL // use default security attributes
		);
	if (_pipe == NULL || _pipe == INVALID_HANDLE_VALUE) 
	{
		traceerr("Failed to create outbound pipe instance.");
		return;
	}
	bool result = ConnectNamedPipe(_pipe, NULL);
	if (!result)
	{
		traceerr( "Failed to make connection on named pipe.");
		CloseHandle(_pipe); // close the pipe
		return;
	}
	running = true;
}
Example #27
0
void
processSpeechInput (SpeechSynthesizer *spk) {
#if defined(__MINGW32__)
  if (speechInputHandle != INVALID_HANDLE_VALUE) {
    if (speechInputConnected ||
        (speechInputConnected = ConnectNamedPipe(speechInputHandle, NULL)) ||
        (speechInputConnected = (GetLastError() == ERROR_PIPE_CONNECTED))) {
      char buffer[0X1000];
      DWORD count;

      if (ReadFile(speechInputHandle, buffer, sizeof(buffer), &count, NULL)) {
        if (count) sayCharacters(spk, buffer, count, 0);
      } else {
        DWORD error = GetLastError();

        if (error != ERROR_NO_DATA) {
          speechInputConnected = 0;
          DisconnectNamedPipe(speechInputHandle);

          if (error != ERROR_BROKEN_PIPE)
            logWindowsSystemError("speech input FIFO read");
        }
      }
    }
  }
#elif defined(S_ISFIFO)
  if (speechInputDescriptor != -1) {
    char buffer[0X1000];
    int count = read(speechInputDescriptor, buffer, sizeof(buffer));
    if (count > 0) sayCharacters(spk, buffer, count, 0);
  }
#endif /* process speech input */
}
Example #28
0
static int
monitorWindowsPipeConnect (NamedPipeObject *obj) {
    if (ResetEvent(obj->windows.connect.event)) {
        ZeroMemory(&obj->windows.connect.overlapped, sizeof(obj->windows.connect.overlapped));
        obj->windows.connect.overlapped.hEvent = obj->windows.connect.event;

        if (ConnectNamedPipe(obj->input.descriptor, &obj->windows.connect.overlapped)) {
            if (doWindowsPipeConnected(obj)) {
                return 1;
            }
        } else {
            DWORD error = GetLastError();

            if (error == ERROR_PIPE_CONNECTED) {
                if (doWindowsPipeConnected(obj)) {
                    return 1;
                }
            } else if (error == ERROR_IO_PENDING) {
                if (asyncMonitorFileInput(&obj->windows.connect.monitor, obj->windows.connect.event, handleWindowsPipeConnected, obj)) {
                    return 1;
                }
            } else {
                logWindowsError(error, "ConnectNamedPipe");
            }
        }
    } else {
        logWindowsSystemError("ResetEvent");
    }

    return 0;
}
int PipeControlChannel::readNamedPipe()
{
    BALL_LOG_SET_CATEGORY(LOG_CATEGORY);
    BSLS_ASSERT(INVALID_HANDLE_VALUE != d_impl.d_windows.d_handle);

    BALL_LOG_TRACE << "Accepting next pipe client connection" << BALL_LOG_END;

    if (!ConnectNamedPipe(d_impl.d_windows.d_handle, NULL)) {
        BALL_LOG_TRACE << "Connecting to named pipe '" << d_pipeName
                       << "': "
                       << describeWin32Error(GetLastError())
                       << BALL_LOG_END;

        DWORD lastError = GetLastError();
        if (lastError != ERROR_PIPE_CONNECTED && lastError != ERROR_NO_DATA) {
            BALL_LOG_TRACE << "Failed to connect to named pipe '" << d_pipeName
                           << "'"
                           << BALL_LOG_END;
            return -1;
        }
    }

    while(1) {
        char buffer[MAX_PIPE_BUFFER_LEN];
        DWORD bytesRead = 0;

        if (ReadFile(d_impl.d_windows.d_handle,
                     buffer,
                     MAX_PIPE_BUFFER_LEN,
                     &bytesRead,
                     NULL))
        {
           if (bytesRead > 0) {
               if (buffer[bytesRead - 1] == '\n') {
                   bytesRead--;
               }
               bslstl::StringRef stringRef(buffer, bytesRead);
               if (!stringRef.isEmpty()) {
                   d_callback(stringRef);
               }
           }
           else {
              // reached EOF on a named pipe.
              break;
           }
        }
        else {
            BALL_LOG_TRACE << "Failed to read from named pipe '" << d_pipeName
                           << "': "
                           << describeWin32Error(GetLastError())
                           << BALL_LOG_END;
            break;
        }
    }

    DisconnectNamedPipe(d_impl.d_windows.d_handle);

    return 0;
}
Example #30
0
    bool Connect()
    {
        if (!ConnectNamedPipe(hPipe, &Overlapped))
            if (GetLastError() != ERROR_IO_PENDING)
            {
                ImDiskSvcStatus.dwWin32ExitCode = GetLastError();
                delete this;
                return false;
            }

        HANDLE hWaitObjects[] =
        {
            Overlapped.hEvent,
            ImDiskSvcStopEvent
        };

        switch (WaitForMultipleObjects(sizeof(hWaitObjects) /
            sizeof(*hWaitObjects),
            hWaitObjects,
            FALSE,
            INFINITE))
        {
        case WAIT_OBJECT_0:
        {
            union
            {
                DWORD(CALLBACK ImDiskSvcServerSession::*Member)();
                UINT(CALLBACK *Static)(LPVOID);
            } ThreadFunction;
            ThreadFunction.Member = &ImDiskSvcServerSession::Thread;

            KdPrint(("ImDskSvc: Creating thread.%n"));

            UINT id;
            HANDLE hThread = (HANDLE)
                _beginthreadex(NULL, 0, ThreadFunction.Static, this, 0, &id);
            if (hThread == NULL)
            {
                ImDiskSvcStatus.dwWin32ExitCode = GetLastError();
                delete this;
                return false;
            }

            CloseHandle(hThread);
            ImDiskSvcStatus.dwWin32ExitCode = NO_ERROR;
            return true;
        }

        case WAIT_OBJECT_0 + 1:
            ImDiskSvcStatus.dwWin32ExitCode = NO_ERROR;
            delete this;
            return false;

        default:
            ImDiskSvcStatus.dwWin32ExitCode = GetLastError();
            delete this;
            return false;
        }
    }