729 lines
15 KiB
C++
729 lines
15 KiB
C++
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/*++
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Copyright (c) 1997 Microsoft Corporation
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Module Name:
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faxitg.cpp
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Abstract:
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This file implements the itg routing extension.
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The purpose of this routing extension is to create
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a queue of faxes that are processed by network
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client applications. The clients are manual routers
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that simply display the fax and allow the operator
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to send the fax via email.
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This code has 2 main parts, routing extension that
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is called by the fax service and the client service
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threads.
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The routing extension part simply copies the fax file
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into a disk directory that becomes the queue.
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The client service threads service requests from the
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clients for retrieving queued faxes. The clients
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communicate through the use of sockets.
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Author:
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Wesley Witt (wesw) 13-May-1997
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Environment:
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User Mode
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--*/
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#include <windows.h>
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#include <winsock2.h>
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#include <tchar.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <lm.h>
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#include "faxutil.h"
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#include "faxroute.h"
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#include "faxsvr.h"
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#define MAX_THREADS 1
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#define FAX_RECEIVE_DIR TEXT("%systemroot%\\faxreceive")
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#define FILE_QUEUE_DIR TEXT("%systemroot%\\faxreceive\\itg")
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#define ITG_SHARE_NAME TEXT("Itg")
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#define ITG_SHARE_COMMENT TEXT("ITG Fax Queue")
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typedef struct _CLIENT_DATA {
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SOCKET Socket;
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OVERLAPPED Overlapped;
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FAX_QUEUE_MESSAGE Message;
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} CLIENT_DATA, *PCLIENT_DATA;
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PFAXROUTEGETFILE FaxRouteGetFile;
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HINSTANCE MyhInstance;
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BOOL ServiceDebug;
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LPWSTR FaxReceiveDir;
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LPWSTR FileQueueDir;
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PSID ServiceSid;
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WSADATA WsaData;
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CLIENT_DATA ClientData[MAX_CLIENTS];
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DWORD ClientCount;
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DWORD
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ServerWorkerThread(
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HANDLE ServerCompletionPort
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)
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/*++
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Routine Description:
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This is the worker thread for servicing client
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requests for retrieving faxes.
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Arguments:
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ServerCompletionPort - Completion port handle
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Return Value:
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Thread return value.
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--*/
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{
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BOOL Rval;
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DWORD Bytes;
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WCHAR FileName[MAX_PATH];
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WIN32_FIND_DATA FindData;
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HANDLE hFind;
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DWORD ClientIndex;
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LPOVERLAPPED Overlapped;
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PCLIENT_DATA ThisClient;
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while( TRUE ) {
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//
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// get the next packet
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//
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Rval = GetQueuedCompletionStatus(
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ServerCompletionPort,
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&Bytes,
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&ClientIndex,
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&Overlapped,
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INFINITE
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);
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if (!Rval) {
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Rval = GetLastError();
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continue;
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}
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ThisClient = &ClientData[ClientIndex];
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if (ThisClient->Message.Request == REQ_NEXT_FAX) {
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//
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// get the next tif file in the queue
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//
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wcscpy( FileName, FileQueueDir );
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wcscat( FileName, L"\\*.tif" );
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hFind = FindFirstFile( FileName, &FindData );
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if (hFind == INVALID_HANDLE_VALUE) {
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FindClose( hFind );
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ThisClient->Message.Response = RSP_BAD;
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} else {
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FindClose( hFind );
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ThisClient->Message.Response = RSP_GOOD;
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wcscpy( (LPWSTR) ThisClient->Message.Buffer, FindData.cFileName );
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}
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//
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// send the file name to the client
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//
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Bytes = send( ThisClient->Socket, (char*)&ThisClient->Message, sizeof(FAX_QUEUE_MESSAGE), 0 );
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if (Bytes == (DWORD)SOCKET_ERROR) {
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DebugPrint(( L"Windows Sockets error %d: Couldn't send data to client\n", WSAGetLastError() ));
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}
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goto next_packet;
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}
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if (ThisClient->Message.Request == REQ_ACK) {
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if (ThisClient->Message.Response == RSP_GOOD) {
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//
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// if the client successfully copied the file
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// then delete it from the queue
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//
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wcscpy( FileName, FileQueueDir );
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wcscat( FileName, L"\\" );
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wcscat( FileName, (LPWSTR) ThisClient->Message.Buffer );
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DeleteFile( FileName );
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}
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goto next_packet;
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}
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next_packet:
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//
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// re-prime the pump for this client by queuing another read
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//
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ReadFile(
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(HANDLE) ThisClient->Socket,
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(LPVOID) &ThisClient->Message,
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sizeof(FAX_QUEUE_MESSAGE),
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&Bytes,
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&ThisClient->Overlapped
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);
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}
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return 0;
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}
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DWORD
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ServerNetworkThread(
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LPVOID lpv
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)
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/*++
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Routine Description:
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This is the worker thread for servicing initial
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client connections.
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Arguments:
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Not used.
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Return Value:
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Thread return value.
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--*/
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{
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SOCKET srv_sock, cli_sock;
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SOCKADDR_IN srv_addr;
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HANDLE ServerCompletionPort;
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HANDLE hThread;
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DWORD ThreadId;
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HANDLE CompletionPort;
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DWORD Bytes;
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//
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// create the single completion port that
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// is used to service client requests
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//
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ServerCompletionPort = CreateIoCompletionPort(
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INVALID_HANDLE_VALUE,
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NULL,
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0,
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1
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);
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if (!ServerCompletionPort) {
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return FALSE;
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}
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//
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// create the thread to service client requests
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//
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hThread = CreateThread(
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NULL,
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0,
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(LPTHREAD_START_ROUTINE) ServerWorkerThread,
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(LPVOID) ServerCompletionPort,
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0,
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&ThreadId
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);
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if (!hThread) {
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return FALSE;
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}
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CloseHandle( hThread );
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//
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// Create the server-side socket
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//
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srv_sock = socket( AF_INET, SOCK_STREAM, 0 );
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if (srv_sock == INVALID_SOCKET){
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DebugPrint(( L"Windows Sockets error %d: Couldn't create socket.", WSAGetLastError() ));
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return FALSE;
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}
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//
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// create the server address
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//
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ZeroMemory( &srv_addr, sizeof(srv_addr) );
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srv_addr.sin_family = AF_INET;
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srv_addr.sin_port = htons( SERVICE_PORT );
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//
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// Bind socket to the appropriate port and interface
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//
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if (bind(srv_sock, (LPSOCKADDR)&srv_addr, sizeof(srv_addr) ) == SOCKET_ERROR){
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DebugPrint(( L"Windows Sockets error %d: Couldn't bind socket.", WSAGetLastError() ));
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return FALSE;
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}
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//
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// Listen for incoming connections
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//
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if (listen( srv_sock, MAX_CLIENTS ) == SOCKET_ERROR){
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DebugPrint(( L"Windows Sockets error %d: Couldn't set up listen on socket.", WSAGetLastError() ));
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return FALSE;
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}
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//
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// Accept and service incoming connection requests indefinitely
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//
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while (TRUE) {
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//
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// get a new client connection
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//
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cli_sock = accept( srv_sock, NULL, NULL );
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if (cli_sock==INVALID_SOCKET){
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DebugPrint(( L"Windows Sockets error %d: Couldn't accept incoming connection on socket.",WSAGetLastError() ));
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return FALSE;
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}
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//
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// setup the client data struct
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//
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ClientData[ClientCount].Socket = cli_sock;
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//
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// add the client to the completion port for reads
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//
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CompletionPort = CreateIoCompletionPort(
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(HANDLE) ClientData[ClientCount].Socket,
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ServerCompletionPort,
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ClientCount,
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MAX_THREADS
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);
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if (CompletionPort == NULL) {
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DebugPrint(( L"Failed to add a socket to the completion port, ec=%d", GetLastError() ));
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closesocket( cli_sock );
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continue;
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}
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//
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// prime the pump by queueing up a read
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//
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ReadFile(
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(HANDLE) ClientData[ClientCount].Socket,
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(LPVOID) &ClientData[ClientCount].Message,
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sizeof(FAX_QUEUE_MESSAGE),
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&Bytes,
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&ClientData[ClientCount].Overlapped
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);
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//
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// next client
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//
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ClientCount += 1;
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}
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return TRUE;
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}
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extern "C"
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DWORD
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FaxRouteDllInit(
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HINSTANCE hInstance,
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DWORD Reason,
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LPVOID Context
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)
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/*++
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Routine Description:
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This is the dll entrypoint for this routing extension.
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Arguments:
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hInstance - Module handle
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Reason - Reason for being called
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Context - Register context
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Return Value:
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TRUE for success, otherwise FALSE.
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--*/
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{
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if (Reason == DLL_PROCESS_ATTACH) {
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MyhInstance = hInstance;
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DisableThreadLibraryCalls( hInstance );
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}
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return TRUE;
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}
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BOOL
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CreateNetworkShare(
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LPTSTR Path,
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LPTSTR ShareName,
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LPTSTR Comment
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)
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/*++
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Routine Description:
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This functions creates a network share,
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shares out a local disk directory.
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Arguments:
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Path - Local disk directory to share
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ShareName - Name of the share
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Comment - Comments
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Return Value:
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TRUE for success, otherwise FALSE.
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--*/
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{
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SHARE_INFO_2 ShareInfo;
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NET_API_STATUS rVal;
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TCHAR ExpandedPath[MAX_PATH*2];
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ExpandEnvironmentStrings( Path, ExpandedPath, sizeof(ExpandedPath) );
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ShareInfo.shi2_netname = ShareName;
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ShareInfo.shi2_type = STYPE_DISKTREE;
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ShareInfo.shi2_remark = Comment;
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ShareInfo.shi2_permissions = ACCESS_ALL;
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ShareInfo.shi2_max_uses = (DWORD) -1,
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ShareInfo.shi2_current_uses = (DWORD) -1;
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ShareInfo.shi2_path = ExpandedPath;
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ShareInfo.shi2_passwd = NULL;
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rVal = NetShareAdd(
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NULL,
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2,
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(LPBYTE) &ShareInfo,
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NULL
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);
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|
return rVal == 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteInitialize(
|
||
|
|
IN HANDLE HeapHandle,
|
||
|
|
IN PFAXROUTEADDFILE pFaxRouteAddFile,
|
||
|
|
IN PFAXROUTEDELETEFILE pFaxRouteDeleteFile,
|
||
|
|
IN PFAXROUTEGETFILE pFaxRouteGetFile,
|
||
|
|
IN PFAXROUTEENUMFILES pFaxRouteEnumFiles
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This functions is called by the fax service to
|
||
|
|
initialize the routing extension.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
HeapHandle - Heap handle for memory all allocations
|
||
|
|
pFaxRouteAddFile - Support function for adding files to routing file list
|
||
|
|
pFaxRouteDeleteFile - Support function for deleting files from the routing file list
|
||
|
|
pFaxRouteGetFile - Support function for geting files from the routing file list
|
||
|
|
pFaxRouteEnumFiles - Support function for enumerating files in the routing file list
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE for success, otherwise FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
HANDLE hThread;
|
||
|
|
DWORD ThreadId;
|
||
|
|
DWORD Size;
|
||
|
|
|
||
|
|
|
||
|
|
FaxRouteGetFile = pFaxRouteGetFile;
|
||
|
|
|
||
|
|
HeapInitialize(HeapHandle,NULL,NULL,0);
|
||
|
|
|
||
|
|
Size = ExpandEnvironmentStrings( FAX_RECEIVE_DIR, FaxReceiveDir, 0 );
|
||
|
|
if (Size) {
|
||
|
|
FaxReceiveDir = (LPWSTR) MemAlloc( Size * sizeof(WCHAR) );
|
||
|
|
if (FaxReceiveDir) {
|
||
|
|
ExpandEnvironmentStrings( FAX_RECEIVE_DIR, FaxReceiveDir, Size );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Size = ExpandEnvironmentStrings( FILE_QUEUE_DIR, FileQueueDir, 0 );
|
||
|
|
if (Size) {
|
||
|
|
FileQueueDir = (LPWSTR) MemAlloc( Size * sizeof(WCHAR) );
|
||
|
|
if (FileQueueDir) {
|
||
|
|
ExpandEnvironmentStrings( FILE_QUEUE_DIR, FileQueueDir, Size );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (FaxReceiveDir == NULL || FileQueueDir == NULL) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
CreateNetworkShare( FileQueueDir, ITG_SHARE_NAME, ITG_SHARE_COMMENT );
|
||
|
|
|
||
|
|
//
|
||
|
|
// initialize winsock
|
||
|
|
//
|
||
|
|
|
||
|
|
if (WSAStartup( 0x0101, &WsaData )) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
hThread = CreateThread(
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
(LPTHREAD_START_ROUTINE) ServerNetworkThread,
|
||
|
|
NULL,
|
||
|
|
0,
|
||
|
|
&ThreadId
|
||
|
|
);
|
||
|
|
if (!hThread) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteGetRoutingInfo(
|
||
|
|
IN LPWSTR RoutingGuid,
|
||
|
|
IN DWORD DeviceId,
|
||
|
|
IN LPBYTE RoutingInfo,
|
||
|
|
OUT LPDWORD RoutingInfoSize
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This functions is called by the fax service to
|
||
|
|
get routing configuration data.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
RoutingGuid - Unique identifier for the requested routing method
|
||
|
|
DeviceId - Device that is being configured
|
||
|
|
RoutingInfo - Routing info buffer
|
||
|
|
RoutingInfoSize - Size of the buffer
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE for success, otherwise FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
RoutingInfo = NULL;
|
||
|
|
RoutingInfoSize = 0;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteSetRoutingInfo(
|
||
|
|
IN LPWSTR RoutingGuid,
|
||
|
|
IN DWORD DeviceId,
|
||
|
|
IN LPBYTE RoutingInfo,
|
||
|
|
IN DWORD RoutingInfoSize
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This functions is called by the fax service to
|
||
|
|
set routing configuration data.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
RoutingGuid - Unique identifier for the requested routing method
|
||
|
|
DeviceId - Device that is being configured
|
||
|
|
RoutingInfo - Routing info buffer
|
||
|
|
RoutingInfoSize - Size of the buffer
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE for success, otherwise FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteConfigure(
|
||
|
|
OUT HPROPSHEETPAGE *PropSheetPage
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This functions is called by the fax service to
|
||
|
|
get a property sheet for user configuration of
|
||
|
|
the routing extension.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
PropSheetPage - Handle to a property sheet
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE for success, otherwise FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteItg(
|
||
|
|
PFAX_ROUTE FaxRoute,
|
||
|
|
PVOID *FailureData,
|
||
|
|
LPDWORD FailureDataSize
|
||
|
|
)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
This functions is called by the fax service to
|
||
|
|
route a received fax.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
FaxRoute - Routing information
|
||
|
|
FailureData - Failure data buffer
|
||
|
|
FailureDataSize - Size of failure data buffer
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
TRUE for success, otherwise FALSE.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
DWORD Size;
|
||
|
|
WCHAR TiffFileName[MAX_PATH];
|
||
|
|
LPWSTR SrcFName = NULL;
|
||
|
|
WCHAR DstFName[MAX_PATH];
|
||
|
|
LPTSTR FBaseName;
|
||
|
|
WCHAR FName[_MAX_FNAME];
|
||
|
|
WCHAR Ext[_MAX_EXT];
|
||
|
|
|
||
|
|
|
||
|
|
Size = sizeof(TiffFileName) / sizeof(WCHAR);
|
||
|
|
if (!FaxRouteGetFile(
|
||
|
|
FaxRoute->JobId,
|
||
|
|
0,
|
||
|
|
TiffFileName,
|
||
|
|
&Size))
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
Size = GetFullPathName(
|
||
|
|
TiffFileName,
|
||
|
|
0,
|
||
|
|
SrcFName,
|
||
|
|
&FBaseName
|
||
|
|
);
|
||
|
|
|
||
|
|
SrcFName = (LPWSTR) MemAlloc( (Size + 1) * sizeof(WCHAR) );
|
||
|
|
if (!SrcFName) {
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
GetFullPathName(
|
||
|
|
TiffFileName,
|
||
|
|
Size,
|
||
|
|
SrcFName,
|
||
|
|
&FBaseName
|
||
|
|
);
|
||
|
|
|
||
|
|
_wsplitpath( SrcFName, NULL, NULL, FName, Ext );
|
||
|
|
|
||
|
|
wcscpy( DstFName, FileQueueDir );
|
||
|
|
wcscat( DstFName, L"\\" );
|
||
|
|
wcscat( DstFName, FName );
|
||
|
|
wcscat( DstFName, Ext );
|
||
|
|
|
||
|
|
if (!CopyFile( SrcFName, DstFName, TRUE )) {
|
||
|
|
MemFree( SrcFName );
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
MemFree( SrcFName );
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
BOOL WINAPI
|
||
|
|
FaxRouteDeviceEnable(
|
||
|
|
IN LPWSTR RoutingGuid,
|
||
|
|
IN DWORD DeviceId,
|
||
|
|
IN LONG Enabled
|
||
|
|
)
|
||
|
|
{
|
||
|
|
return TRUE;
|
||
|
|
}
|