dlls/spoolss/spoolss_main.c

   1 /*
   2  * Implementation of the Spooler-Service helper DLL
   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 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winerror.h"
  26 #include "winreg.h"
  27
  28 #include "wingdi.h"
  29 #include "winspool.h"
  30 #include "ddk/winsplp.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(spoolss);
  35
  36 /* ################################ */
  37
  38 static CRITICAL_SECTION backend_cs;
  39 static CRITICAL_SECTION_DEBUG backend_cs_debug =
  40 {
  41     0, 0, &backend_cs,
  42     { &backend_cs_debug.ProcessLocksList, &backend_cs_debug.ProcessLocksList },
  43       0, 0, { (DWORD_PTR)(__FILE__ ": backend_cs") }
  44 };
  45 static CRITICAL_SECTION backend_cs = { &backend_cs_debug, -1, 0, 0, 0, 0 };
  46
  47 /* ################################ */
  48
  49 static HMODULE hwinspool;
  50 static HMODULE hlocalspl;
  51 static BOOL (WINAPI *pInitializePrintProvidor)(LPPRINTPROVIDOR, DWORD, LPWSTR);
  52
  53 static PRINTPROVIDOR * backend;
  54
  55 /* ################################ */
  56
  57 static const WCHAR localspldllW[] = {'l','o','c','a','l','s','p','l','.','d','l','l',0};
  58 static const WCHAR winspooldrvW[] = {'w','i','n','s','p','o','o','l','.','d','r','v',0};
  59
  60 /******************************************************************************
  61  * backend_load [internal]
  62  *
  63  * load and init our backend (the local printprovider: "localspl.dll")
  64  *
  65  * PARAMS
  66  *
  67  * RETURNS
  68  *  Success: TRUE
  69  *  Failure: FALSE and RPC_S_SERVER_UNAVAILABLE
  70  *
  71  * NOTES
  72  *  In windows, the spooler router (spoolss.dll) support multiple
  73  *  printprovider (localspl.dll for the local system)
  74  *
  75  */
  76 static BOOL backend_load(void)
  77 {
  78     static PRINTPROVIDOR mybackend;
  79     DWORD res;
  80
  81     if (backend) return TRUE;
  82
  83     EnterCriticalSection(&backend_cs);
  84     hlocalspl = LoadLibraryW(localspldllW);
  85     if (hlocalspl) {
  86         pInitializePrintProvidor = (void *) GetProcAddress(hlocalspl, "InitializePrintProvidor");
  87         if (pInitializePrintProvidor) {
  88
  89             /* native localspl does not clear unused entries */
  90             memset(&mybackend, 0, sizeof(mybackend));
  91             res = pInitializePrintProvidor(&mybackend, sizeof(mybackend), NULL);
  92             if (res) {
  93                 backend = &mybackend;
  94                 LeaveCriticalSection(&backend_cs);
  95                 TRACE("backend: %p (%p)\n", backend, hlocalspl);
  96                 return TRUE;
  97             }
  98         }
  99         FreeLibrary(hlocalspl);
 100     }
 101
 102     LeaveCriticalSection(&backend_cs);
 103
 104     WARN("failed to load the backend: %u\n", GetLastError());
 105     SetLastError(RPC_S_SERVER_UNAVAILABLE);
 106     return FALSE;
 107 }
 108
 109 /******************************************************************
 110  * unload_backend [internal]
 111  *
 112  */
 113 static void backend_unload(void)
 114 {
 115     EnterCriticalSection(&backend_cs);
 116     if (backend) {
 117         backend = NULL;
 118         FreeLibrary(hlocalspl);
 119     }
 120     LeaveCriticalSection(&backend_cs);
 121 }
 122
 123 /******************************************************************************
 124  *
 125  */
 126 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 127 {
 128     TRACE("(%p, %d, %p)\n", hinstDLL, fdwReason, lpvReserved);
 129
 130     switch (fdwReason) {
 131         case DLL_WINE_PREATTACH:
 132             return FALSE;  /* prefer native version */
 133         case DLL_PROCESS_ATTACH: {
 134             DisableThreadLibraryCalls(hinstDLL);
 135             break;
 136
 137         case DLL_PROCESS_DETACH:
 138             backend_unload();
 139             break;
 140         }
 141     }
 142     return TRUE;
 143 }
 144
 145 /******************************************************************
 146  *   AllocSplStr   [SPOOLSS.@]
 147  *
 148  * Create a copy from the String on the Spooler-Heap
 149  *
 150  * PARAMS
 151  *  pwstr [I] PTR to the String to copy
 152  *
 153  * RETURNS
 154  *  Failure: NULL
 155  *  Success: PTR to the copied String
 156  *
 157  */
 158 LPWSTR WINAPI AllocSplStr(LPCWSTR pwstr)
 159 {
 160     LPWSTR  res = NULL;
 161     DWORD   len;
 162
 163     TRACE("(%s)\n", debugstr_w(pwstr));
 164     if (!pwstr) return NULL;
 165
 166     len = (lstrlenW(pwstr) + 1) * sizeof(WCHAR);
 167     res = HeapAlloc(GetProcessHeap(), 0, len);
 168     if (res) lstrcpyW(res, pwstr);
 169
 170     TRACE("returning %p\n", res);
 171     return res;
 172 }
 173
 174 /******************************************************************
 175  *   BuildOtherNamesFromMachineName   [SPOOLSS.@]
 176  */
 177 BOOL WINAPI BuildOtherNamesFromMachineName(LPVOID * ptr1, LPVOID * ptr2)
 178 {
 179     FIXME("(%p, %p) stub\n", ptr1, ptr2);
 180
 181     *ptr1 = NULL;
 182     *ptr2 = NULL;
 183     return FALSE;
 184 }
 185
 186 /******************************************************************
 187  *   DllAllocSplMem   [SPOOLSS.@]
 188  *
 189  * Allocate cleared memory from the spooler heap
 190  *
 191  * PARAMS
 192  *  size [I] Number of bytes to allocate
 193  *
 194  * RETURNS
 195  *  Failure: NULL
 196  *  Success: PTR to the allocated memory
 197  *
 198  * NOTES
 199  *  We use the process heap (Windows use a separate spooler heap)
 200  *
 201  */
 202 LPVOID WINAPI DllAllocSplMem(DWORD size)
 203 {
 204     LPVOID  res;
 205
 206     res = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size);
 207     TRACE("(%d) => %p\n", size, res);
 208     return res;
 209 }
 210
 211 /******************************************************************
 212  *   DllFreeSplMem   [SPOOLSS.@]
 213  *
 214  * Free the allocated spooler memory
 215  *
 216  * PARAMS
 217  *  memory [I] PTR to the memory allocated by DllAllocSplMem
 218  *
 219  * RETURNS
 220  *  Failure: FALSE
 221  *  Success: TRUE
 222  *
 223  * NOTES
 224  *  We use the process heap (Windows use a separate spooler heap)
 225  *
 226  */
 227
 228 BOOL WINAPI DllFreeSplMem(LPBYTE memory)
 229 {
 230     TRACE("(%p)\n", memory);
 231     return HeapFree(GetProcessHeap(), 0, memory);
 232 }
 233
 234 /******************************************************************
 235  *   DllFreeSplStr   [SPOOLSS.@]
 236  *
 237  * Free the allocated Spooler-String
 238  *
 239  * PARAMS
 240  *  pwstr [I] PTR to the WSTR, allocated by AllocSplStr
 241  *
 242  * RETURNS
 243  *  Failure: FALSE
 244  *  Success: TRUE
 245  *
 246  */
 247
 248 BOOL WINAPI DllFreeSplStr(LPWSTR pwstr)
 249 {
 250     TRACE("(%s) PTR: %p\n", debugstr_w(pwstr), pwstr);
 251     return HeapFree(GetProcessHeap(), 0, pwstr);
 252 }
 253
 254
 255 /******************************************************************
 256  *   ImpersonatePrinterClient   [SPOOLSS.@]
 257  */
 258 BOOL WINAPI ImpersonatePrinterClient(HANDLE hToken)
 259 {
 260     FIXME("(%p) stub\n", hToken);
 261     return TRUE;
 262 }
 263
 264 /******************************************************************
 265  *   InitializeRouter   [SPOOLSS.@]
 266  */
 267 BOOL WINAPI InitializeRouter(void)
 268 {
 269     TRACE("()\n");
 270     return backend_load();
 271 }
 272
 273 /******************************************************************
 274  *   IsLocalCall    [SPOOLSS.@]
 275  */
 276 BOOL WINAPI IsLocalCall(void)
 277 {
 278     FIXME("() stub\n");
 279     return TRUE;
 280 }
 281
 282 /******************************************************************
 283  *   RevertToPrinterSelf   [SPOOLSS.@]
 284  */
 285 HANDLE WINAPI RevertToPrinterSelf(void)
 286 {
 287     FIXME("() stub\n");
 288     return (HANDLE) 0xdead0947;
 289 }
 290
 291 /******************************************************************
 292  *   SplInitializeWinSpoolDrv   [SPOOLSS.@]
 293  *
 294  * Dynamic load "winspool.drv" and fill an array with some function-pointer
 295  *
 296  * PARAMS
 297  *  table  [I] array of function-pointer to fill
 298  *
 299  * RETURNS
 300  *  Success: TRUE
 301  *  Failure: FALSE
 302  *
 303  * NOTES
 304  *  Native "spoolss.dll" from w2k fill the table with 11 Function-Pointer.
 305  *  We implement the XP-Version (The table has only 9 Pointer)
 306  *
 307  */
 308 BOOL WINAPI SplInitializeWinSpoolDrv(LPVOID * table)
 309 {
 310     DWORD res;
 311
 312     TRACE("(%p)\n", table);
 313
 314     hwinspool = LoadLibraryW(winspooldrvW);
 315     if (!hwinspool) return FALSE;
 316
 317     table[0] = (void *) GetProcAddress(hwinspool, "OpenPrinterW");
 318     table[1] = (void *) GetProcAddress(hwinspool, "ClosePrinter");
 319     table[2] = (void *) GetProcAddress(hwinspool, "SpoolerDevQueryPrintW");
 320     table[3] = (void *) GetProcAddress(hwinspool, "SpoolerPrinterEvent");
 321     table[4] = (void *) GetProcAddress(hwinspool, "DocumentPropertiesW");
 322     table[5] = (void *) GetProcAddress(hwinspool, (LPSTR) 212);  /* LoadPrinterDriver */
 323     table[6] = (void *) GetProcAddress(hwinspool, (LPSTR) 213);  /* RefCntLoadDriver */
 324     table[7] = (void *) GetProcAddress(hwinspool, (LPSTR) 214);  /* RefCntUnloadDriver */
 325     table[8] = (void *) GetProcAddress(hwinspool, (LPSTR) 215);  /* ForceUnloadDriver */
 326
 327     for (res = 0; res < 9; res++) {
 328         if (table[res] == NULL) return FALSE;
 329     }
 330
 331     return TRUE;
 332
 333 }
 334
 335 /******************************************************************
 336  *   SplIsUpgrade   [SPOOLSS.@]
 337  */
 338 BOOL WINAPI SplIsUpgrade(void)
 339 {
 340     FIXME("() stub\n");
 341     return FALSE;
 342 }
 343
 344 /******************************************************************
 345  *   SpoolerHasInitialized  [SPOOLSS.@]
 346  */
 347 BOOL WINAPI SpoolerHasInitialized(void)
 348 {
 349     FIXME("() stub\n");
 350     return TRUE;
 351 }
 352
 353 /******************************************************************
 354  *   SpoolerInit   [SPOOLSS.@]
 355  */
 356 BOOL WINAPI SpoolerInit(void)
 357 {
 358     FIXME("() stub\n");
 359     return TRUE;
 360 }
 361
 362 /******************************************************************
 363  *   WaitForSpoolerInitialization   [SPOOLSS.@]
 364  */
 365 BOOL WINAPI WaitForSpoolerInitialization(void)
 366 {
 367     FIXME("() stub\n");
 368     return TRUE;
 369 }