dlls/spoolss/router.c

   1 /*
   2  * Routing for Spooler-Service helper DLL
   3  *
   4  * Copyright 2006-2009 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 #include <stdlib.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winerror.h"
  27 #include "winreg.h"
  28
  29 #include "wingdi.h"
  30 #include "winspool.h"
  31 #include "ddk/winsplp.h"
  32 #include "spoolss.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(spoolss);
  37
  38 /* ################################ */
  39
  40 #define MAX_BACKEND 3
  41
  42 typedef struct {
  43     /* PRINTPROVIDOR functions */
  44     DWORD  (WINAPI *fpOpenPrinter)(LPWSTR, HANDLE *, LPPRINTER_DEFAULTSW);
  45     DWORD  (WINAPI *fpSetJob)(HANDLE, DWORD, DWORD, LPBYTE, DWORD);
  46     DWORD  (WINAPI *fpGetJob)(HANDLE, DWORD, DWORD, LPBYTE, DWORD, LPDWORD);
  47     DWORD  (WINAPI *fpEnumJobs)(HANDLE, DWORD, DWORD, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  48     HANDLE (WINAPI *fpAddPrinter)(LPWSTR, DWORD, LPBYTE);
  49     DWORD  (WINAPI *fpDeletePrinter)(HANDLE);
  50     DWORD  (WINAPI *fpSetPrinter)(HANDLE, DWORD, LPBYTE, DWORD);
  51     DWORD  (WINAPI *fpGetPrinter)(HANDLE, DWORD, LPBYTE, DWORD, LPDWORD);
  52     DWORD  (WINAPI *fpEnumPrinters)(DWORD, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  53     DWORD  (WINAPI *fpAddPrinterDriver)(LPWSTR, DWORD, LPBYTE);
  54     DWORD  (WINAPI *fpEnumPrinterDrivers)(LPWSTR, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  55     DWORD  (WINAPI *fpGetPrinterDriver)(HANDLE, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD);
  56     DWORD  (WINAPI *fpGetPrinterDriverDirectory)(LPWSTR, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD);
  57     DWORD  (WINAPI *fpDeletePrinterDriver)(LPWSTR, LPWSTR, LPWSTR);
  58     DWORD  (WINAPI *fpAddPrintProcessor)(LPWSTR, LPWSTR, LPWSTR, LPWSTR);
  59     DWORD  (WINAPI *fpEnumPrintProcessors)(LPWSTR, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  60     DWORD  (WINAPI *fpGetPrintProcessorDirectory)(LPWSTR, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD);
  61     DWORD  (WINAPI *fpDeletePrintProcessor)(LPWSTR, LPWSTR, LPWSTR);
  62     DWORD  (WINAPI *fpEnumPrintProcessorDatatypes)(LPWSTR, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  63     DWORD  (WINAPI *fpStartDocPrinter)(HANDLE, DWORD, LPBYTE);
  64     DWORD  (WINAPI *fpStartPagePrinter)(HANDLE);
  65     DWORD  (WINAPI *fpWritePrinter)(HANDLE, LPVOID, DWORD, LPDWORD);
  66     DWORD  (WINAPI *fpEndPagePrinter)(HANDLE);
  67     DWORD  (WINAPI *fpAbortPrinter)(HANDLE);
  68     DWORD  (WINAPI *fpReadPrinter)(HANDLE, LPVOID, DWORD, LPDWORD);
  69     DWORD  (WINAPI *fpEndDocPrinter)(HANDLE);
  70     DWORD  (WINAPI *fpAddJob)(HANDLE, DWORD, LPBYTE, DWORD, LPDWORD);
  71     DWORD  (WINAPI *fpScheduleJob)(HANDLE, DWORD);
  72     DWORD  (WINAPI *fpGetPrinterData)(HANDLE, LPWSTR, LPDWORD, LPBYTE, DWORD, LPDWORD);
  73     DWORD  (WINAPI *fpSetPrinterData)(HANDLE, LPWSTR, DWORD, LPBYTE, DWORD);
  74     DWORD  (WINAPI *fpWaitForPrinterChange)(HANDLE, DWORD);
  75     DWORD  (WINAPI *fpClosePrinter)(HANDLE);
  76     DWORD  (WINAPI *fpAddForm)(HANDLE, DWORD, LPBYTE);
  77     DWORD  (WINAPI *fpDeleteForm)(HANDLE, LPWSTR);
  78     DWORD  (WINAPI *fpGetForm)(HANDLE, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD);
  79     DWORD  (WINAPI *fpSetForm)(HANDLE, LPWSTR, DWORD, LPBYTE);
  80     DWORD  (WINAPI *fpEnumForms)(HANDLE, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  81     DWORD  (WINAPI *fpEnumMonitors)(LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  82     DWORD  (WINAPI *fpEnumPorts)(LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, LPDWORD);
  83     DWORD  (WINAPI *fpAddPort)(LPWSTR, HWND, LPWSTR);
  84     DWORD  (WINAPI *fpConfigurePort)(LPWSTR, HWND, LPWSTR);
  85     DWORD  (WINAPI *fpDeletePort)(LPWSTR, HWND, LPWSTR);
  86     HANDLE (WINAPI *fpCreatePrinterIC)(HANDLE, LPDEVMODEW);
  87     DWORD  (WINAPI *fpPlayGdiScriptOnPrinterIC)(HANDLE, LPBYTE, DWORD, LPBYTE, DWORD, DWORD);
  88     DWORD  (WINAPI *fpDeletePrinterIC)(HANDLE);
  89     DWORD  (WINAPI *fpAddPrinterConnection)(LPWSTR);
  90     DWORD  (WINAPI *fpDeletePrinterConnection)(LPWSTR);
  91     DWORD  (WINAPI *fpPrinterMessageBox)(HANDLE, DWORD, HWND, LPWSTR, LPWSTR, DWORD);
  92     DWORD  (WINAPI *fpAddMonitor)(LPWSTR, DWORD, LPBYTE);
  93     DWORD  (WINAPI *fpDeleteMonitor)(LPWSTR, LPWSTR, LPWSTR);
  94     DWORD  (WINAPI *fpResetPrinter)(HANDLE, LPPRINTER_DEFAULTSW);
  95     DWORD  (WINAPI *fpGetPrinterDriverEx)(HANDLE, LPWSTR, DWORD, LPBYTE, DWORD, LPDWORD, DWORD, DWORD, PDWORD, PDWORD);
  96     HANDLE (WINAPI *fpFindFirstPrinterChangeNotification)(HANDLE, DWORD, DWORD, LPVOID);
  97     DWORD  (WINAPI *fpFindClosePrinterChangeNotification)(HANDLE);
  98     DWORD  (WINAPI *fpAddPortEx)(HANDLE, LPWSTR, DWORD, LPBYTE, LPWSTR);
  99     DWORD  (WINAPI *fpShutDown)(LPVOID);
 100     DWORD  (WINAPI *fpRefreshPrinterChangeNotification)(HANDLE, DWORD, PVOID, PVOID);
 101     DWORD  (WINAPI *fpOpenPrinterEx)(LPWSTR, LPHANDLE, LPPRINTER_DEFAULTSW, LPBYTE, DWORD);
 102     HANDLE (WINAPI *fpAddPrinterEx)(LPWSTR, DWORD, LPBYTE, LPBYTE, DWORD);
 103     DWORD  (WINAPI *fpSetPort)(LPWSTR, LPWSTR, DWORD, LPBYTE);
 104     DWORD  (WINAPI *fpEnumPrinterData)(HANDLE, DWORD, LPWSTR, DWORD, LPDWORD, LPDWORD, LPBYTE, DWORD, LPDWORD);
 105     DWORD  (WINAPI *fpDeletePrinterData)(HANDLE, LPWSTR);
 106     DWORD  (WINAPI *fpClusterSplOpen)(LPCWSTR, LPCWSTR, PHANDLE, LPCWSTR, LPCWSTR);
 107     DWORD  (WINAPI *fpClusterSplClose)(HANDLE);
 108     DWORD  (WINAPI *fpClusterSplIsAlive)(HANDLE);
 109     DWORD  (WINAPI *fpSetPrinterDataEx)(HANDLE, LPCWSTR, LPCWSTR, DWORD, LPBYTE, DWORD);
 110     DWORD  (WINAPI *fpGetPrinterDataEx)(HANDLE, LPCWSTR, LPCWSTR, LPDWORD, LPBYTE, DWORD, LPDWORD);
 111     DWORD  (WINAPI *fpEnumPrinterDataEx)(HANDLE, LPCWSTR, LPBYTE, DWORD, LPDWORD, LPDWORD);
 112     DWORD  (WINAPI *fpEnumPrinterKey)(HANDLE, LPCWSTR, LPWSTR, DWORD, LPDWORD);
 113     DWORD  (WINAPI *fpDeletePrinterDataEx)(HANDLE, LPCWSTR, LPCWSTR);
 114     DWORD  (WINAPI *fpDeletePrinterKey)(HANDLE hPrinter, LPCWSTR pKeyName);
 115     DWORD  (WINAPI *fpSeekPrinter)(HANDLE, LARGE_INTEGER, PLARGE_INTEGER, DWORD, BOOL);
 116     DWORD  (WINAPI *fpDeletePrinterDriverEx)(LPWSTR, LPWSTR, LPWSTR, DWORD, DWORD);
 117     DWORD  (WINAPI *fpAddPerMachineConnection)(LPCWSTR, LPCWSTR, LPCWSTR, LPCWSTR);
 118     DWORD  (WINAPI *fpDeletePerMachineConnection)(LPCWSTR, LPCWSTR);
 119     DWORD  (WINAPI *fpEnumPerMachineConnections)(LPCWSTR, LPBYTE, DWORD, LPDWORD, LPDWORD);
 120     DWORD  (WINAPI *fpXcvData)(HANDLE, LPCWSTR, PBYTE, DWORD, PBYTE, DWORD, PDWORD, PDWORD);
 121     DWORD  (WINAPI *fpAddPrinterDriverEx)(LPWSTR, DWORD, LPBYTE, DWORD);
 122     DWORD  (WINAPI *fpSplReadPrinter)(HANDLE, LPBYTE *, DWORD);
 123     DWORD  (WINAPI *fpDriverUnloadComplete)(LPWSTR);
 124     DWORD  (WINAPI *fpGetSpoolFileInfo)(HANDLE, LPWSTR *, LPHANDLE, HANDLE, HANDLE);
 125     DWORD  (WINAPI *fpCommitSpoolData)(HANDLE, DWORD);
 126     DWORD  (WINAPI *fpCloseSpoolFileHandle)(HANDLE);
 127     DWORD  (WINAPI *fpFlushPrinter)(HANDLE, LPBYTE, DWORD, LPDWORD, DWORD);
 128     DWORD  (WINAPI *fpSendRecvBidiData)(HANDLE, LPCWSTR, LPBIDI_REQUEST_CONTAINER, LPBIDI_RESPONSE_CONTAINER *);
 129     DWORD  (WINAPI *fpAddDriverCatalog)(HANDLE, DWORD, VOID *, DWORD);
 130     /* Private Data */
 131     HMODULE dll;
 132     LPWSTR  dllname;
 133     LPWSTR  name;
 134     LPWSTR  regroot;
 135     DWORD   index;
 136 } backend_t;
 137
 138 /* ################################ */
 139
 140 static backend_t *backend[MAX_BACKEND];
 141 static DWORD used_backends = 0;
 142
 143 static CRITICAL_SECTION backend_cs;
 144 static CRITICAL_SECTION_DEBUG backend_cs_debug =
 145 {
 146     0, 0, &backend_cs,
 147     { &backend_cs_debug.ProcessLocksList, &backend_cs_debug.ProcessLocksList },
 148       0, 0, { (DWORD_PTR)(__FILE__ ": backend_cs") }
 149 };
 150 static CRITICAL_SECTION backend_cs = { &backend_cs_debug, -1, 0, 0, 0, 0 };
 151
 152 /* ################################ */
 153
 154 static WCHAR localsplW[] = L"localspl.dll";
 155
 156 /******************************************************************
 157  * backend_unload_all [internal]
 158  *
 159  * unload all backends
 160  */
 161 void backend_unload_all(void)
 162 {
 163     EnterCriticalSection(&backend_cs);
 164     while (used_backends > 0) {
 165         used_backends--;
 166         FreeLibrary(backend[used_backends]->dll);
 167         free(backend[used_backends]->dllname);
 168         free(backend[used_backends]->name);
 169         free(backend[used_backends]->regroot);
 170         free(backend[used_backends]);
 171         backend[used_backends] = NULL;
 172     }
 173     LeaveCriticalSection(&backend_cs);
 174 }
 175
 176 /******************************************************************************
 177  * backend_load [internal]
 178  *
 179  * load and init a backend
 180  *
 181  * PARAMS
 182  *  name   [I] Printprovider to use for the backend. NULL for the local print provider
 183  *
 184  * RETURNS
 185  *  Success: PTR to the backend
 186  *  Failure: NULL
 187  *
 188  */
 189 static backend_t * backend_load(LPWSTR dllname, LPWSTR name, LPWSTR regroot)
 190 {
 191
 192     BOOL (WINAPI *pInitializePrintProvidor)(LPPRINTPROVIDOR, DWORD, LPWSTR);
 193     DWORD id;
 194     DWORD res;
 195
 196     TRACE("(%s, %s, %s)\n", debugstr_w(dllname), debugstr_w(name), debugstr_w(regroot));
 197
 198     EnterCriticalSection(&backend_cs);
 199     id = used_backends;
 200
 201     backend[id] = calloc(1, sizeof(backend_t));
 202     if (!backend[id]) {
 203         LeaveCriticalSection(&backend_cs);
 204         return NULL;
 205     }
 206
 207     backend[id]->dllname = wcsdup(dllname);
 208     backend[id]->name = wcsdup(name);
 209     backend[id]->regroot = wcsdup(regroot);
 210
 211     backend[id]->dll = LoadLibraryW(dllname);
 212     if (backend[id]->dll) {
 213         pInitializePrintProvidor = (void *) GetProcAddress(backend[id]->dll, "InitializePrintProvidor");
 214         if (pInitializePrintProvidor) {
 215
 216             /* native localspl does not clear unused entries */
 217             res = pInitializePrintProvidor((PRINTPROVIDOR *) backend[id], sizeof(PRINTPROVIDOR), regroot);
 218             if (res) {
 219                 used_backends++;
 220                 backend[id]->index = used_backends;
 221                 LeaveCriticalSection(&backend_cs);
 222                 TRACE("--> backend #%ld: %p (%s)\n", id, backend[id], debugstr_w(dllname));
 223                 return backend[id];
 224             }
 225         }
 226         FreeLibrary(backend[id]->dll);
 227     }
 228     free(backend[id]->dllname);
 229     free(backend[id]->name);
 230     free(backend[id]->regroot);
 231     free(backend[id]);
 232     backend[id] = NULL;
 233     LeaveCriticalSection(&backend_cs);
 234     WARN("failed to init %s: %lu\n", debugstr_w(dllname), GetLastError());
 235     return NULL;
 236 }
 237
 238 /******************************************************************************
 239  * backend_load_all [internal]
 240  *
 241  * load and init all backends
 242  *
 243  * RETURNS
 244  *  Success: TRUE
 245  *  Failure: FALSE
 246  *
 247  */
 248 BOOL backend_load_all(void)
 249 {
 250     static BOOL failed = FALSE;
 251
 252     EnterCriticalSection(&backend_cs);
 253
 254     /* if we failed before, don't try again */
 255     if (!failed && (used_backends == 0)) {
 256         backend_load(localsplW, NULL, NULL);
 257
 258         /* ToDo: parse the registry and load all other backends */
 259
 260         failed = (used_backends == 0);
 261     }
 262     LeaveCriticalSection(&backend_cs);
 263     TRACE("-> %d\n", !failed);
 264     return (!failed);
 265 }
 266
 267 /******************************************************************************
 268  * backend_first [internal]
 269  *
 270  * find the first usable backend
 271  *
 272  * RETURNS
 273  *  Success: PTR to the backend
 274  *  Failure: NULL
 275  *
 276  */
 277 static backend_t * backend_first(LPWSTR name)
 278 {
 279
 280     EnterCriticalSection(&backend_cs);
 281     /* Load all backends, when not done yet */
 282     if (used_backends || backend_load_all()) {
 283
 284         /* test for the local system first */
 285         if (!name || !name[0]) {
 286             LeaveCriticalSection(&backend_cs);
 287             return backend[0];
 288         }
 289     }
 290
 291     FIXME("server %s not supported in %ld backends\n", debugstr_w(name), used_backends);
 292     LeaveCriticalSection(&backend_cs);
 293     return NULL;
 294 }
 295
 296 /******************************************************************
 297  * AddMonitorW (spoolss.@)
 298  *
 299  * Install a Printmonitor
 300  *
 301  * PARAMS
 302  *  pName       [I] Servername or NULL (local Computer)
 303  *  Level       [I] Structure-Level (Must be 2)
 304  *  pMonitors   [I] PTR to MONITOR_INFO_2
 305  *
 306  * RETURNS
 307  *  Success: TRUE
 308  *  Failure: FALSE
 309  *
 310  * NOTES
 311  *  All Files for the Monitor must already be copied to %winsysdir% ("%SystemRoot%\system32")
 312  *
 313  */
 314 BOOL WINAPI AddMonitorW(LPWSTR pName, DWORD Level, LPBYTE pMonitors)
 315 {
 316     backend_t * pb;
 317     DWORD res = ROUTER_UNKNOWN;
 318
 319     TRACE("(%s, %ld, %p)\n", debugstr_w(pName), Level, pMonitors);
 320
 321     if (Level != 2) {
 322         SetLastError(ERROR_INVALID_LEVEL);
 323         return FALSE;
 324     }
 325
 326     pb = backend_first(pName);
 327     if (pb && pb->fpAddMonitor)
 328         res = pb->fpAddMonitor(pName, Level, pMonitors);
 329     else
 330     {
 331         SetLastError(ERROR_PROC_NOT_FOUND);
 332     }
 333
 334     TRACE("got %lu with %lu\n", res, GetLastError());
 335     return (res == ROUTER_SUCCESS);
 336 }
 337
 338 /******************************************************************
 339  * AddPrinterDriverExW (spoolss.@)
 340  *
 341  * Install a Printer Driver with the Option to upgrade / downgrade the Files
 342  *
 343  * PARAMS
 344  *  pName           [I] Servername or NULL (local Computer)
 345  *  level           [I] Level for the supplied DRIVER_INFO_*W struct
 346  *  pDriverInfo     [I] PTR to DRIVER_INFO_*W struct with the Driver Parameter
 347  *  dwFileCopyFlags [I] How to Copy / Upgrade / Downgrade the needed Files
 348  *
 349  * RESULTS
 350  *  Success: TRUE
 351  *  Failure: FALSE
 352  *
 353  */
 354 BOOL WINAPI AddPrinterDriverExW(LPWSTR pName, DWORD level, LPBYTE pDriverInfo, DWORD dwFileCopyFlags)
 355 {
 356     backend_t * pb;
 357     DWORD res = ROUTER_UNKNOWN;
 358
 359     TRACE("(%s, %ld, %p, 0x%lx)\n", debugstr_w(pName), level, pDriverInfo, dwFileCopyFlags);
 360
 361     if (!pDriverInfo) {
 362         SetLastError(ERROR_INVALID_PARAMETER);
 363         return FALSE;
 364     }
 365
 366     pb = backend_first(pName);
 367     if (pb && pb->fpAddPrinterDriverEx)
 368         res = pb->fpAddPrinterDriverEx(pName, level, pDriverInfo, dwFileCopyFlags);
 369     else
 370     {
 371         SetLastError(ERROR_PROC_NOT_FOUND);
 372     }
 373
 374     TRACE("got %lu with %lu\n", res, GetLastError());
 375     return (res == ROUTER_SUCCESS);
 376 }
 377
 378 /******************************************************************
 379  * DeleteMonitorW (spoolss.@)
 380  *
 381  * Delete a specific Printmonitor from a Printing-Environment
 382  *
 383  * PARAMS
 384  *  pName        [I] Servername or NULL (local Computer)
 385  *  pEnvironment [I] Printing-Environment of the Monitor or NULL (Default)
 386  *  pMonitorName [I] Name of the Monitor, that should be deleted
 387  *
 388  * RETURNS
 389  *  Success: TRUE
 390  *  Failure: FALSE
 391  *
 392  */
 393 BOOL WINAPI DeleteMonitorW(LPWSTR pName, LPWSTR pEnvironment, LPWSTR pMonitorName)
 394 {
 395     backend_t * pb;
 396     DWORD res = ROUTER_UNKNOWN;
 397
 398     TRACE("(%s, %s, %s)\n", debugstr_w(pName), debugstr_w(pEnvironment), debugstr_w(pMonitorName));
 399
 400     pb = backend_first(pName);
 401     if (pb && pb->fpDeleteMonitor)
 402         res = pb->fpDeleteMonitor(pName, pEnvironment, pMonitorName);
 403     else
 404     {
 405         SetLastError(ERROR_PROC_NOT_FOUND);
 406     }
 407
 408     TRACE("got %lu with %lu\n", res, GetLastError());
 409     return (res == ROUTER_SUCCESS);
 410 }
 411
 412 /******************************************************************
 413  * EnumMonitorsW (spoolss.@)
 414  *
 415  * Enumerate available Port-Monitors
 416  *
 417  * PARAMS
 418  *  pName      [I] Servername or NULL (local Computer)
 419  *  Level      [I] Structure-Level
 420  *  pMonitors  [O] PTR to Buffer that receives the Result
 421  *  cbBuf      [I] Size of Buffer at pMonitors
 422  *  pcbNeeded  [O] PTR to DWORD that receives the size in Bytes used / required for pMonitors
 423  *  pcReturned [O] PTR to DWORD that receives the number of Monitors in pMonitors
 424  *
 425  * RETURNS
 426  *  Success: TRUE
 427  *  Failure: FALSE and in pcbNeeded the Bytes required for pMonitors, if cbBuf is too small
 428  *
 429  */
 430 BOOL WINAPI EnumMonitorsW(LPWSTR pName, DWORD Level, LPBYTE pMonitors, DWORD cbBuf,
 431                           LPDWORD pcbNeeded, LPDWORD pcReturned)
 432 {
 433     backend_t * pb;
 434     DWORD res = ROUTER_UNKNOWN;
 435
 436     TRACE("(%s, %ld, %p, %ld, %p, %p)\n", debugstr_w(pName), Level, pMonitors,
 437           cbBuf, pcbNeeded, pcReturned);
 438
 439     if (pcbNeeded) *pcbNeeded = 0;
 440     if (pcReturned) *pcReturned = 0;
 441
 442     pb = backend_first(pName);
 443     if (pb && pb->fpEnumMonitors)
 444         res = pb->fpEnumMonitors(pName, Level, pMonitors, cbBuf, pcbNeeded, pcReturned);
 445     else
 446     {
 447         SetLastError(ERROR_PROC_NOT_FOUND);
 448     }
 449
 450     TRACE("got %lu with %lu (%lu byte for %lu entries)\n\n", res, GetLastError(),
 451             pcbNeeded ? *pcbNeeded : 0, pcReturned ? *pcReturned : 0);
 452
 453     return (res == ROUTER_SUCCESS);
 454 }
 455
 456 /******************************************************************
 457  * EnumPortsW (spoolss.@)
 458  *
 459  * Enumerate available Ports
 460  *
 461  * PARAMS
 462  *  pName      [I] Servername or NULL (local Computer)
 463  *  Level      [I] Structure-Level (1 or 2)
 464  *  pPorts     [O] PTR to Buffer that receives the Result
 465  *  cbBuf      [I] Size of Buffer at pPorts
 466  *  pcbNeeded  [O] PTR to DWORD that receives the size in Bytes used / required for pPorts
 467  *  pcReturned [O] PTR to DWORD that receives the number of Ports in pPorts
 468  *
 469  * RETURNS
 470  *  Success: TRUE
 471  *  Failure: FALSE and in pcbNeeded the Bytes required for pPorts, if cbBuf is too small
 472  *
 473  */
 474 BOOL WINAPI EnumPortsW(LPWSTR pName, DWORD Level, LPBYTE pPorts, DWORD cbBuf,
 475                        LPDWORD pcbNeeded, LPDWORD pcReturned)
 476 {
 477     backend_t * pb;
 478     DWORD res = ROUTER_UNKNOWN;
 479
 480     TRACE("(%s, %ld, %p, %ld, %p, %p)\n", debugstr_w(pName), Level, pPorts, cbBuf,
 481             pcbNeeded, pcReturned);
 482
 483     if (pcbNeeded) *pcbNeeded = 0;
 484     if (pcReturned) *pcReturned = 0;
 485
 486     pb = backend_first(pName);
 487     if (pb && pb->fpEnumPorts)
 488         res = pb->fpEnumPorts(pName, Level, pPorts, cbBuf, pcbNeeded, pcReturned);
 489     else
 490     {
 491         SetLastError(ERROR_PROC_NOT_FOUND);
 492     }
 493
 494     TRACE("got %lu with %lu (%lu byte for %lu entries)\n", res, GetLastError(),
 495             pcbNeeded ? *pcbNeeded : 0, pcReturned ? *pcReturned : 0);
 496
 497     return (res == ROUTER_SUCCESS);
 498 }
 499
 500 /******************************************************************
 501  * GetPrinterDriverDirectoryW (spoolss.@)
 502  *
 503  * Return the PATH for the Printer-Drivers
 504  *
 505  * PARAMS
 506  *   pName            [I] Servername or NULL (local Computer)
 507  *   pEnvironment     [I] Printing-Environment or NULL (Default)
 508  *   Level            [I] Structure-Level (must be 1)
 509  *   pDriverDirectory [O] PTR to Buffer that receives the Result
 510  *   cbBuf            [I] Size of Buffer at pDriverDirectory
 511  *   pcbNeeded        [O] PTR to DWORD that receives the size in Bytes used /
 512  *                        required for pDriverDirectory
 513  *
 514  * RETURNS
 515  *   Success: TRUE  and in pcbNeeded the Bytes used in pDriverDirectory
 516  *   Failure: FALSE and in pcbNeeded the Bytes required for pDriverDirectory,
 517  *   if cbBuf is too small
 518  *
 519  *   Native Values returned in pDriverDirectory on Success:
 520  *|  NT(Windows NT x86): "%winsysdir%\\spool\\DRIVERS\\w32x86"
 521  *|  NT(Windows x64):    "%winsysdir%\\spool\\DRIVERS\\x64"
 522  *|  NT(Windows 4.0):    "%winsysdir%\\spool\\DRIVERS\\win40"
 523  *|  win9x(Windows 4.0): "%winsysdir%"
 524  *
 525  *   "%winsysdir%" is the Value from GetSystemDirectoryW()
 526  *
 527  */
 528 BOOL WINAPI GetPrinterDriverDirectoryW(LPWSTR pName, LPWSTR pEnvironment,
 529             DWORD Level, LPBYTE pDriverDirectory, DWORD cbBuf, LPDWORD pcbNeeded)
 530 {
 531     backend_t * pb;
 532     DWORD res = ROUTER_UNKNOWN;
 533
 534     TRACE("(%s, %s, %ld, %p, %ld, %p)\n", debugstr_w(pName),
 535           debugstr_w(pEnvironment), Level, pDriverDirectory, cbBuf, pcbNeeded);
 536
 537     if (pcbNeeded) *pcbNeeded = 0;
 538
 539     pb = backend_first(pName);
 540     if (pb && pb->fpGetPrinterDriverDirectory)
 541         res = pb->fpGetPrinterDriverDirectory(pName, pEnvironment, Level,
 542                                               pDriverDirectory, cbBuf, pcbNeeded);
 543     else
 544     {
 545         SetLastError(ERROR_PROC_NOT_FOUND);
 546     }
 547
 548     TRACE("got %lu with %lu (%lu byte)\n",
 549             res, GetLastError(), pcbNeeded ? *pcbNeeded : 0);
 550
 551     return (res == ROUTER_SUCCESS);
 552
 553 }