dlls/localspl/localmon.c

   1 /*
   2  * Implementation of the Local Printmonitor
   3  *
   4  * Copyright 2006 Detlef Riekenberg
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24 #define NONAMELESSUNION
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "winreg.h"
  31
  32 #include "winspool.h"
  33 #include "ddk/winsplp.h"
  34 #include "localspl_private.h"
  35
  36 #include "wine/debug.h"
  37 #include "wine/list.h"
  38 #include "wine/unicode.h"
  39
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(localspl);
  42
  43 /*****************************************************/
  44
  45 static CRITICAL_SECTION xcv_handles_cs;
  46 static CRITICAL_SECTION_DEBUG xcv_handles_cs_debug =
  47 {
  48     0, 0, &xcv_handles_cs,
  49     { &xcv_handles_cs_debug.ProcessLocksList, &xcv_handles_cs_debug.ProcessLocksList },
  50       0, 0, { (DWORD_PTR)(__FILE__ ": xcv_handles_cs") }
  51 };
  52 static CRITICAL_SECTION xcv_handles_cs = { &xcv_handles_cs_debug, -1, 0, 0, 0, 0 };
  53
  54 /* ############################### */
  55
  56 typedef struct {
  57     struct list entry;
  58     ACCESS_MASK GrantedAccess;
  59     WCHAR       nameW[1];
  60 } xcv_t;
  61
  62 static struct list xcv_handles = LIST_INIT( xcv_handles );
  63
  64 /* ############################### */
  65
  66 static const WCHAR cmd_AddPortW[] = {'A','d','d','P','o','r','t',0};
  67 static const WCHAR cmd_DeletePortW[] = {'D','e','l','e','t','e','P','o','r','t',0};
  68 static const WCHAR cmd_ConfigureLPTPortCommandOKW[] = {'C','o','n','f','i','g','u','r','e',
  69                                     'L','P','T','P','o','r','t',
  70                                     'C','o','m','m','a','n','d','O','K',0};
  71
  72 static const WCHAR cmd_GetDefaultCommConfigW[] = {'G','e','t',
  73                                     'D','e','f','a','u','l','t',
  74                                     'C','o','m','m','C','o','n','f','i','g',0};
  75
  76 static const WCHAR cmd_GetTransmissionRetryTimeoutW[] = {'G','e','t',
  77                                     'T','r','a','n','s','m','i','s','s','i','o','n',
  78                                     'R','e','t','r','y','T','i','m','e','o','u','t',0};
  79
  80 static const WCHAR cmd_MonitorUIW[] = {'M','o','n','i','t','o','r','U','I',0};
  81 static const WCHAR cmd_PortIsValidW[] = {'P','o','r','t','I','s','V','a','l','i','d',0};
  82 static const WCHAR cmd_SetDefaultCommConfigW[] = {'S','e','t',
  83                                     'D','e','f','a','u','l','t',
  84                                     'C','o','m','m','C','o','n','f','i','g',0};
  85
  86 static const WCHAR dllnameuiW[] = {'l','o','c','a','l','u','i','.','d','l','l',0};
  87 static const WCHAR emptyW[] = {0};
  88
  89 static const WCHAR portname_LPT[]  = {'L','P','T',0};
  90 static const WCHAR portname_COM[]  = {'C','O','M',0};
  91 static const WCHAR portname_FILE[] = {'F','I','L','E',':',0};
  92 static const WCHAR portname_CUPS[] = {'C','U','P','S',':',0};
  93 static const WCHAR portname_LPR[]  = {'L','P','R',':',0};
  94
  95 static const WCHAR TransmissionRetryTimeoutW[] = {'T','r','a','n','s','m','i','s','s','i','o','n',
  96                                     'R','e','t','r','y','T','i','m','e','o','u','t',0};
  97
  98 static const WCHAR WinNT_CV_PortsW[] = {'S','o','f','t','w','a','r','e','\\',
  99                                         'M','i','c','r','o','s','o','f','t','\\',
 100                                         'W','i','n','d','o','w','s',' ','N','T','\\',
 101                                         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 102                                         'P','o','r','t','s',0};
 103
 104 static const WCHAR WinNT_CV_WindowsW[] = {'S','o','f','t','w','a','r','e','\\',
 105                                         'M','i','c','r','o','s','o','f','t','\\',
 106                                         'W','i','n','d','o','w','s',' ','N','T','\\',
 107                                         'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
 108                                         'W','i','n','d','o','w','s',0};
 109
 110
 111 /******************************************************************
 112  * does_port_exist (internal)
 113  *
 114  * returns TRUE, when the Port already exists
 115  *
 116  */
 117 static BOOL does_port_exist(LPCWSTR myname)
 118 {
 119
 120     LPPORT_INFO_1W  pi;
 121     DWORD   needed = 0;
 122     DWORD   returned;
 123     DWORD   id;
 124
 125     TRACE("(%s)\n", debugstr_w(myname));
 126
 127     id = EnumPortsW(NULL, 1, NULL, 0, &needed, &returned);
 128     pi = spl_alloc(needed);
 129     returned = 0;
 130     if (pi)
 131         id = EnumPortsW(NULL, 1, (LPBYTE) pi, needed, &needed, &returned);
 132
 133     if (id && returned > 0) {
 134         /* we got a number of valid names. */
 135         for (id = 0; id < returned; id++)
 136         {
 137             if (lstrcmpiW(myname, pi[id].pName) == 0) {
 138                 TRACE("(%u) found %s\n", id, debugstr_w(pi[id].pName));
 139                 spl_free(pi);
 140                 return TRUE;
 141             }
 142         }
 143     }
 144
 145     spl_free(pi);
 146     return FALSE;
 147 }
 148
 149 /******************************************************************
 150  * enumerate the local Ports from the Registry (internal)
 151  *
 152  * See localmon_EnumPortsW.
 153  *
 154  * NOTES
 155  *  returns the needed size (in bytes) for pPorts
 156  *  and *lpreturned is set to number of entries returned in pPorts
 157  *
 158  */
 159
 160 static DWORD get_ports_from_reg(DWORD level, LPBYTE pPorts, DWORD cbBuf, LPDWORD lpreturned)
 161 {
 162     HKEY    hroot = 0;
 163     LPWSTR  ptr;
 164     LPPORT_INFO_2W out;
 165     WCHAR   portname[MAX_PATH];
 166     WCHAR   res_PortW[IDS_LOCALPORT_MAXLEN];
 167     WCHAR   res_MonitorW[IDS_LOCALMONITOR_MAXLEN];
 168     INT     reslen_PortW;
 169     INT     reslen_MonitorW;
 170     DWORD   len;
 171     DWORD   res;
 172     DWORD   needed = 0;
 173     DWORD   numentries;
 174     DWORD   entrysize;
 175     DWORD   id = 0;
 176
 177     TRACE("(%d, %p, %d, %p)\n", level, pPorts, cbBuf, lpreturned);
 178
 179     entrysize = (level == 1) ? sizeof(PORT_INFO_1W) : sizeof(PORT_INFO_2W);
 180
 181     numentries = *lpreturned;           /* this is 0, when we scan the registry */
 182     needed = entrysize * numentries;
 183     ptr = (LPWSTR) &pPorts[needed];
 184
 185     if (needed > cbBuf) pPorts = NULL;  /* No buffer for the structs */
 186
 187     numentries = 0;
 188     needed = 0;
 189
 190     /* we do not check more parameters as done in windows */
 191     if ((level < 1) || (level > 2)) {
 192         goto getports_cleanup;
 193     }
 194
 195     /* "+1" for '\0' */
 196     reslen_MonitorW = LoadStringW(LOCALSPL_hInstance, IDS_LOCALMONITOR, res_MonitorW, IDS_LOCALMONITOR_MAXLEN) + 1;
 197     reslen_PortW = LoadStringW(LOCALSPL_hInstance, IDS_LOCALPORT, res_PortW, IDS_LOCALPORT_MAXLEN) + 1;
 198
 199     res = RegOpenKeyW(HKEY_LOCAL_MACHINE, WinNT_CV_PortsW, &hroot);
 200     if (res == ERROR_SUCCESS) {
 201
 202         /* Scan all Port-Names */
 203         while (res == ERROR_SUCCESS) {
 204             len = MAX_PATH;
 205             portname[0] = '\0';
 206             res = RegEnumValueW(hroot, id, portname, &len, NULL, NULL, NULL, NULL);
 207
 208             if ((res == ERROR_SUCCESS) && (portname[0])) {
 209                 numentries++;
 210                 /* calsulate the required size */
 211                 needed += entrysize;
 212                 needed += (len + 1) * sizeof(WCHAR);
 213                 if (level > 1) {
 214                     needed += (reslen_MonitorW + reslen_PortW) * sizeof(WCHAR);
 215                 }
 216
 217                 /* Now fill the user-buffer, if available */
 218                 if (pPorts && (cbBuf >= needed)){
 219                     out = (LPPORT_INFO_2W) pPorts;
 220                     pPorts += entrysize;
 221                     TRACE("%p: writing PORT_INFO_%dW #%d (%s)\n", out, level, numentries, debugstr_w(portname));
 222                     out->pPortName = ptr;
 223                     lstrcpyW(ptr, portname);            /* Name of the Port */
 224                     ptr += (len + 1);
 225                     if (level > 1) {
 226                         out->pMonitorName = ptr;
 227                         lstrcpyW(ptr, res_MonitorW);    /* Name of the Monitor */
 228                         ptr += reslen_MonitorW;
 229
 230                         out->pDescription = ptr;
 231                         lstrcpyW(ptr, res_PortW);       /* Port Description */
 232                         ptr += reslen_PortW;
 233
 234                         out->fPortType = PORT_TYPE_WRITE;
 235                         out->Reserved = 0;
 236                     }
 237                 }
 238                 id++;
 239             }
 240         }
 241         RegCloseKey(hroot);
 242     }
 243     else
 244     {
 245         ERR("failed with %d for %s\n", res, debugstr_w(WinNT_CV_PortsW));
 246         SetLastError(res);
 247     }
 248
 249 getports_cleanup:
 250     *lpreturned = numentries;
 251     TRACE("need %d byte for %d entries (%d)\n", needed, numentries, GetLastError());
 252     return needed;
 253 }
 254
 255 /*****************************************************
 256  * get_type_from_name (internal)
 257  *
 258  */
 259
 260 static DWORD get_type_from_name(LPCWSTR name)
 261 {
 262     HANDLE  hfile;
 263
 264     if (!strncmpW(name, portname_LPT, sizeof(portname_LPT) / sizeof(WCHAR) -1))
 265         return PORT_IS_LPT;
 266
 267     if (!strncmpW(name, portname_COM, sizeof(portname_COM) / sizeof(WCHAR) -1))
 268         return PORT_IS_COM;
 269
 270     if (!strcmpW(name, portname_FILE))
 271         return PORT_IS_FILE;
 272
 273     if (name[0] == '/')
 274         return PORT_IS_UNIXNAME;
 275
 276     if (name[0] == '|')
 277         return PORT_IS_PIPE;
 278
 279     if (!strncmpW(name, portname_CUPS, sizeof(portname_CUPS) / sizeof(WCHAR) -1))
 280         return PORT_IS_CUPS;
 281
 282     if (!strncmpW(name, portname_LPR, sizeof(portname_LPR) / sizeof(WCHAR) -1))
 283         return PORT_IS_LPR;
 284
 285     /* Must be a file or a directory. Does the file exist ? */
 286     hfile = CreateFileW(name, GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
 287     TRACE("%p for OPEN_EXISTING on %s\n", hfile, debugstr_w(name));
 288     if (hfile == INVALID_HANDLE_VALUE) {
 289         /* Can we create the file? */
 290         hfile = CreateFileW(name, GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, FILE_FLAG_DELETE_ON_CLOSE, NULL);
 291         TRACE("%p for OPEN_ALWAYS\n", hfile);
 292     }
 293     if (hfile != INVALID_HANDLE_VALUE) {
 294         CloseHandle(hfile);
 295         return PORT_IS_FILENAME;
 296     }
 297     /* We can't use the name. use GetLastError() for the reason */
 298     return PORT_IS_UNKNOWN;
 299 }
 300
 301 /*****************************************************
 302  *   localmon_EnumPortsW [exported through MONITOREX]
 303  *
 304  * Enumerate all local Ports
 305  *
 306  * PARAMS
 307  *  pName       [I] Servername (ignored)
 308  *  level       [I] Structure-Level (1 or 2)
 309  *  pPorts      [O] PTR to Buffer that receives the Result
 310  *  cbBuf       [I] Size of Buffer at pPorts
 311  *  pcbNeeded   [O] PTR to DWORD that receives the size in Bytes used / required for pPorts
 312  *  pcReturned  [O] PTR to DWORD that receives the number of Ports in pPorts
 313  *
 314  * RETURNS
 315  *  Success: TRUE
 316  *  Failure: FALSE and in pcbNeeded the Bytes required for pPorts, if cbBuf is too small
 317  *
 318  * NOTES
 319  *|  Windows ignores pName
 320  *|  Windows crash the app, when pPorts, pcbNeeded or pcReturned are NULL
 321  *|  Windows >NT4.0 does not check for illegal levels (TRUE is returned)
 322  *
 323  * ToDo
 324  *   "HCU\Software\Wine\Spooler\<portname>" - redirection
 325  *
 326  */
 327 BOOL WINAPI localmon_EnumPortsW(LPWSTR pName, DWORD level, LPBYTE pPorts,
 328                             DWORD cbBuf, LPDWORD pcbNeeded, LPDWORD pcReturned)
 329 {
 330     BOOL    res = FALSE;
 331     DWORD   needed;
 332     DWORD   numentries;
 333
 334     TRACE("(%s, %d, %p, %d, %p, %p)\n",
 335           debugstr_w(pName), level, pPorts, cbBuf, pcbNeeded, pcReturned);
 336
 337     numentries = 0;
 338     needed = get_ports_from_reg(level, NULL, 0, &numentries);
 339     /* we calculated the needed buffersize. now do the error-checks */
 340     if (cbBuf < needed) {
 341         SetLastError(ERROR_INSUFFICIENT_BUFFER);
 342         goto cleanup;
 343     }
 344
 345     /* fill the buffer with the Port-Names */
 346     needed = get_ports_from_reg(level, pPorts, cbBuf, &numentries);
 347     res = TRUE;
 348
 349     if (pcReturned) *pcReturned = numentries;
 350
 351 cleanup:
 352     if (pcbNeeded)  *pcbNeeded = needed;
 353
 354     TRACE("returning %d with %d (%d byte for %d entries)\n",
 355             res, GetLastError(), needed, numentries);
 356
 357     return (res);
 358 }
 359
 360 /*****************************************************
 361  * localmon_XcvClosePort [exported through MONITOREX]
 362  *
 363  * Close a Communication-Channel
 364  *
 365  * PARAMS
 366  *  hXcv  [i] The Handle to close
 367  *
 368  * RETURNS
 369  *  Success: TRUE
 370  *  Failure: FALSE
 371  *
 372  */
 373 BOOL WINAPI localmon_XcvClosePort(HANDLE hXcv)
 374 {
 375     xcv_t * xcv = (xcv_t *) hXcv;
 376
 377     TRACE("(%p)\n", xcv);
 378     /* No checks are done in Windows */
 379     EnterCriticalSection(&xcv_handles_cs);
 380     list_remove(&xcv->entry);
 381     LeaveCriticalSection(&xcv_handles_cs);
 382     spl_free(xcv);
 383     return TRUE;
 384 }
 385
 386 /*****************************************************
 387  * localmon_XcvDataPort [exported through MONITOREX]
 388  *
 389  * Execute command through a Communication-Channel
 390  *
 391  * PARAMS
 392  *  hXcv            [i] The Handle to work with
 393  *  pszDataName     [i] Name of the command to execute
 394  *  pInputData      [i] Buffer for extra Input Data (needed only for some commands)
 395  *  cbInputData     [i] Size in Bytes of Buffer at pInputData
 396  *  pOutputData     [o] Buffer to receive additional Data (needed only for some commands)
 397  *  cbOutputData    [i] Size in Bytes of Buffer at pOutputData
 398  *  pcbOutputNeeded [o] PTR to receive the minimal Size in Bytes of the Buffer at pOutputData
 399  *
 400  * RETURNS
 401  *  Success: ERROR_SUCCESS
 402  *  Failure: win32 error code
 403  *
 404  * NOTES
 405  *
 406  *  Minimal List of commands, that every Printmonitor DLL should support:
 407  *
 408  *| "MonitorUI" : Return the Name of the Userinterface-DLL as WSTR in pOutputData
 409  *| "AddPort"   : Add a Port (Name as WSTR in pInputData)
 410  *| "DeletePort": Delete a Port (Name as WSTR in pInputData)
 411  *
 412  *
 413  */
 414 DWORD WINAPI localmon_XcvDataPort(HANDLE hXcv, LPCWSTR pszDataName, PBYTE pInputData, DWORD cbInputData,
 415                 PBYTE pOutputData, DWORD cbOutputData, PDWORD pcbOutputNeeded)
 416 {
 417     WCHAR   buffer[16];     /* buffer for a decimal number */
 418     LPWSTR  ptr;
 419     DWORD   res;
 420     DWORD   needed;
 421     HKEY    hroot;
 422
 423     TRACE("(%p, %s, %p, %d, %p, %d, %p)\n", hXcv, debugstr_w(pszDataName),
 424           pInputData, cbInputData, pOutputData, cbOutputData, pcbOutputNeeded);
 425
 426     if (!lstrcmpW(pszDataName, cmd_AddPortW)) {
 427         TRACE("InputData (%d): %s\n", cbInputData, debugstr_w( (LPWSTR) pInputData));
 428         res = RegOpenKeyW(HKEY_LOCAL_MACHINE, WinNT_CV_PortsW, &hroot);
 429         if (res == ERROR_SUCCESS) {
 430             if (does_port_exist((LPWSTR) pInputData)) {
 431                 RegCloseKey(hroot);
 432                 TRACE("=> %u\n", ERROR_ALREADY_EXISTS);
 433                 return ERROR_ALREADY_EXISTS;
 434             }
 435             res = RegSetValueExW(hroot, (LPWSTR) pInputData, 0, REG_SZ, (const BYTE *) emptyW, sizeof(emptyW));
 436             RegCloseKey(hroot);
 437         }
 438         TRACE("=> %u\n", res);
 439         return res;
 440     }
 441
 442
 443     if (!lstrcmpW(pszDataName, cmd_ConfigureLPTPortCommandOKW)) {
 444         TRACE("InputData (%d): %s\n", cbInputData, debugstr_w( (LPWSTR) pInputData));
 445         res = RegCreateKeyW(HKEY_LOCAL_MACHINE, WinNT_CV_WindowsW, &hroot);
 446         if (res == ERROR_SUCCESS) {
 447             res = RegSetValueExW(hroot, TransmissionRetryTimeoutW, 0, REG_SZ, pInputData, cbInputData);
 448             RegCloseKey(hroot);
 449         }
 450         return res;
 451     }
 452
 453     if (!lstrcmpW(pszDataName, cmd_DeletePortW)) {
 454         TRACE("InputData (%d): %s\n", cbInputData, debugstr_w( (LPWSTR) pInputData));
 455         res = RegOpenKeyW(HKEY_LOCAL_MACHINE, WinNT_CV_PortsW, &hroot);
 456         if (res == ERROR_SUCCESS) {
 457             res = RegDeleteValueW(hroot, (LPWSTR) pInputData);
 458             RegCloseKey(hroot);
 459             TRACE("=> %u with %u\n", res, GetLastError() );
 460             return res;
 461         }
 462         return ERROR_FILE_NOT_FOUND;
 463     }
 464
 465     if (!lstrcmpW(pszDataName, cmd_GetDefaultCommConfigW)) {
 466         TRACE("InputData (%d): %s\n", cbInputData, debugstr_w( (LPWSTR) pInputData));
 467         *pcbOutputNeeded = cbOutputData;
 468         res = GetDefaultCommConfigW((LPWSTR) pInputData, (LPCOMMCONFIG) pOutputData, pcbOutputNeeded);
 469         TRACE("got %u with %u\n", res, GetLastError() );
 470         return res ? ERROR_SUCCESS : GetLastError();
 471     }
 472
 473     if (!lstrcmpW(pszDataName, cmd_GetTransmissionRetryTimeoutW)) {
 474         * pcbOutputNeeded = sizeof(DWORD);
 475         if (cbOutputData >= sizeof(DWORD)) {
 476             /* the w2k resource kit documented a default of 90, but that's wrong */
 477             *((LPDWORD) pOutputData) = 45;
 478
 479             res = RegOpenKeyW(HKEY_LOCAL_MACHINE, WinNT_CV_WindowsW, &hroot);
 480             if (res == ERROR_SUCCESS) {
 481                 needed = sizeof(buffer) - sizeof(WCHAR);
 482                 res = RegQueryValueExW(hroot, TransmissionRetryTimeoutW, NULL, NULL, (LPBYTE) buffer, &needed);
 483                 if ((res == ERROR_SUCCESS) && (buffer[0])) {
 484                     *((LPDWORD) pOutputData) = strtoulW(buffer, NULL, 0);
 485                 }
 486                 RegCloseKey(hroot);
 487             }
 488             return ERROR_SUCCESS;
 489         }
 490         return ERROR_INSUFFICIENT_BUFFER;
 491     }
 492
 493
 494     if (!lstrcmpW(pszDataName, cmd_MonitorUIW)) {
 495         * pcbOutputNeeded = sizeof(dllnameuiW);
 496         if (cbOutputData >= sizeof(dllnameuiW)) {
 497             memcpy(pOutputData, dllnameuiW, sizeof(dllnameuiW));
 498             return ERROR_SUCCESS;
 499         }
 500         return ERROR_INSUFFICIENT_BUFFER;
 501     }
 502
 503     if (!lstrcmpW(pszDataName, cmd_PortIsValidW)) {
 504         TRACE("InputData (%d): %s\n", cbInputData, debugstr_w( (LPWSTR) pInputData));
 505         res = get_type_from_name((LPCWSTR) pInputData);
 506         TRACE("detected as %u\n",  res);
 507         /* names, that we have recognized, are valid */
 508         if (res) return ERROR_SUCCESS;
 509
 510         /* ERROR_ACCESS_DENIED, ERROR_PATH_NOT_FOUND or something else */
 511         TRACE("=> %u\n", GetLastError());
 512         return GetLastError();
 513     }
 514
 515     if (!lstrcmpW(pszDataName, cmd_SetDefaultCommConfigW)) {
 516         /* get the portname from the Handle */
 517         ptr =  strchrW(((xcv_t *)hXcv)->nameW, ' ');
 518         if (ptr) {
 519             ptr++;  /* skip the space */
 520         }
 521         else
 522         {
 523             ptr =  ((xcv_t *)hXcv)->nameW;
 524         }
 525         lstrcpynW(buffer, ptr, sizeof(buffer)/sizeof(WCHAR));
 526         if (buffer[0]) buffer[lstrlenW(buffer)-1] = '\0';  /* remove the ':' */
 527         res = SetDefaultCommConfigW(buffer, (LPCOMMCONFIG) pInputData, cbInputData);
 528         TRACE("got %u with %u\n", res, GetLastError() );
 529         return res ? ERROR_SUCCESS : GetLastError();
 530     }
 531
 532     FIXME("command not supported: %s\n", debugstr_w(pszDataName));
 533     return ERROR_INVALID_PARAMETER;
 534 }
 535
 536 /*****************************************************
 537  * localmon_XcvOpenPort [exported through MONITOREX]
 538  *
 539  * Open a Communication-Channel
 540  *
 541  * PARAMS
 542  *  pName         [i] Name of selected Object
 543  *  GrantedAccess [i] Access-Rights to use
 544  *  phXcv         [o] The resulting Handle is stored here
 545  *
 546  * RETURNS
 547  *  Success: TRUE
 548  *  Failure: FALSE
 549  *
 550  */
 551 BOOL WINAPI localmon_XcvOpenPort(LPCWSTR pName, ACCESS_MASK GrantedAccess, PHANDLE phXcv)
 552 {
 553     DWORD   len;
 554     xcv_t * xcv;
 555
 556     TRACE("%s, 0x%x, %p)\n", debugstr_w(pName), GrantedAccess, phXcv);
 557     /* No checks for any field is done in Windows */
 558     len = (lstrlenW(pName) + 1) * sizeof(WCHAR);
 559     xcv = spl_alloc( sizeof(xcv_t) + len);
 560     if (xcv) {
 561         xcv->GrantedAccess = GrantedAccess;
 562         memcpy(&xcv->nameW, pName, len);
 563         *phXcv = (HANDLE) xcv;
 564         EnterCriticalSection(&xcv_handles_cs);
 565         list_add_tail(&xcv_handles, &xcv->entry);
 566         LeaveCriticalSection(&xcv_handles_cs);
 567         TRACE("=> %p\n", xcv);
 568         return TRUE;
 569     }
 570     else
 571     {
 572         *phXcv = NULL;
 573         return FALSE;
 574     }
 575 }
 576
 577 /*****************************************************
 578  *      InitializePrintMonitor  (LOCALSPL.@)
 579  *
 580  * Initialize the Monitor for the Local Ports
 581  *
 582  * PARAMS
 583  *  regroot [I] Registry-Path, where the settings are stored
 584  *
 585  * RETURNS
 586  *  Success: Pointer to a MONITOREX Structure
 587  *  Failure: NULL
 588  *
 589  * NOTES
 590  *  The fixed location "HKLM\Software\Microsoft\Windows NT\CurrentVersion\Ports"
 591  *  is used to store the Ports (IniFileMapping from "win.ini", Section "Ports").
 592  *  Native localspl.dll fails, when no valid Port-Entry is present.
 593  *
 594  */
 595
 596 LPMONITOREX WINAPI InitializePrintMonitor(LPWSTR regroot)
 597 {
 598     static MONITOREX mymonitorex =
 599     {
 600         sizeof(MONITOREX) - sizeof(DWORD),
 601         {
 602             localmon_EnumPortsW,
 603             NULL,       /* localmon_OpenPortW */
 604             NULL,       /* localmon_OpenPortExW */
 605             NULL,       /* localmon_StartDocPortW */
 606             NULL,       /* localmon_WritePortW */
 607             NULL,       /* localmon_ReadPortW */
 608             NULL,       /* localmon_EndDocPortW */
 609             NULL,       /* localmon_ClosePortW */
 610             NULL,       /* localmon_AddPortW */
 611             NULL,       /* localmon_AddPortExW */
 612             NULL,       /* Use ConfigurePortUI in localui.dll */
 613             NULL,       /* Use DeletePortUI in localui.dll */
 614             NULL,       /* localmon_GetPrinterDataFromPort */
 615             NULL,       /* localmon_SetPortTimeOuts */
 616             localmon_XcvOpenPort,
 617             localmon_XcvDataPort,
 618             localmon_XcvClosePort
 619         }
 620     };
 621
 622     TRACE("(%s)\n", debugstr_w(regroot));
 623     /* Parameter "regroot" is ignored on NT4.0 (localmon.dll) */
 624     if (!regroot || !regroot[0]) {
 625         SetLastError(ERROR_INVALID_PARAMETER);
 626         return NULL;
 627     }
 628     TRACE("=> %p\n", &mymonitorex);
 629     /* Native windows returns always the same pointer on success */
 630     return &mymonitorex;
 631 }