dlls/oleaut32/oleaut.c

   1 /*
   2  *      OLEAUT32
   3  *
   4  * Copyright 1999, 2000 Marcus Meissner
   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 <string.h>
  23 #include <limits.h>
  24
  25 #define COBJMACROS
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "winerror.h"
  32
  33 #include "ole2.h"
  34 #include "olectl.h"
  35 #include "oleauto.h"
  36 #include "initguid.h"
  37 #include "typelib.h"
  38 #include "oleaut32_oaidl.h"
  39
  40 #include "wine/debug.h"
  41 #include "wine/unicode.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  44 WINE_DECLARE_DEBUG_CHANNEL(heap);
  45
  46 /******************************************************************************
  47  * BSTR  {OLEAUT32}
  48  *
  49  * NOTES
  50  *  BSTR is a simple typedef for a wide-character string used as the principle
  51  *  string type in ole automation. When encapsulated in a Variant type they are
  52  *  automatically copied and destroyed as the variant is processed.
  53  *
  54  *  The low level BSTR API allows manipulation of these strings and is used by
  55  *  higher level API calls to manage the strings transparently to the caller.
  56  *
  57  *  Internally the BSTR type is allocated with space for a DWORD byte count before
  58  *  the string data begins. This is undocumented and non-system code should not
  59  *  access the count directly. Use SysStringLen() or SysStringByteLen()
  60  *  instead. Note that the byte count does not include the terminating NUL.
  61  *
  62  *  To create a new BSTR, use SysAllocString(), SysAllocStringLen() or
  63  *  SysAllocStringByteLen(). To change the size of an existing BSTR, use SysReAllocString()
  64  *  or SysReAllocStringLen(). Finally to destroy a string use SysFreeString().
  65  *
  66  *  BSTR's are cached by Ole Automation by default. To override this behaviour
  67  *  either set the environment variable 'OANOCACHE', or call SetOaNoCache().
  68  *
  69  * SEE ALSO
  70  *  'Inside OLE, second edition' by Kraig Brockshmidt.
  71  */
  72
  73 static BOOL bstr_cache_enabled;
  74
  75 static CRITICAL_SECTION cs_bstr_cache;
  76 static CRITICAL_SECTION_DEBUG cs_bstr_cache_dbg =
  77 {
  78     0, 0, &cs_bstr_cache,
  79     { &cs_bstr_cache_dbg.ProcessLocksList, &cs_bstr_cache_dbg.ProcessLocksList },
  80       0, 0, { (DWORD_PTR)(__FILE__ ": bstr_cache") }
  81 };
  82 static CRITICAL_SECTION cs_bstr_cache = { &cs_bstr_cache_dbg, -1, 0, 0, 0, 0 };
  83
  84 typedef struct {
  85     DWORD size;
  86     union {
  87         char ptr[1];
  88         WCHAR str[1];
  89         DWORD dwptr[1];
  90     } u;
  91 } bstr_t;
  92
  93 #define BUCKET_SIZE 16
  94 #define BUCKET_BUFFER_SIZE 6
  95
  96 typedef struct {
  97     unsigned short head;
  98     unsigned short cnt;
  99     bstr_t *buf[BUCKET_BUFFER_SIZE];
 100 } bstr_cache_entry_t;
 101
 102 #define ARENA_INUSE_FILLER     0x55
 103 #define ARENA_TAIL_FILLER      0xab
 104 #define ARENA_FREE_FILLER      0xfeeefeee
 105
 106 static bstr_cache_entry_t bstr_cache[0x10000/BUCKET_SIZE];
 107
 108 static inline size_t bstr_alloc_size(size_t size)
 109 {
 110     return (FIELD_OFFSET(bstr_t, u.ptr[size]) + sizeof(WCHAR) + BUCKET_SIZE-1) & ~(BUCKET_SIZE-1);
 111 }
 112
 113 static inline bstr_t *bstr_from_str(BSTR str)
 114 {
 115     return CONTAINING_RECORD(str, bstr_t, u.str);
 116 }
 117
 118 static inline bstr_cache_entry_t *get_cache_entry(size_t size)
 119 {
 120     unsigned cache_idx = FIELD_OFFSET(bstr_t, u.ptr[size-1])/BUCKET_SIZE;
 121     return bstr_cache_enabled && cache_idx < sizeof(bstr_cache)/sizeof(*bstr_cache)
 122         ? bstr_cache + cache_idx
 123         : NULL;
 124 }
 125
 126 static bstr_t *alloc_bstr(size_t size)
 127 {
 128     bstr_cache_entry_t *cache_entry = get_cache_entry(size+sizeof(WCHAR));
 129     bstr_t *ret;
 130
 131     if(cache_entry) {
 132         EnterCriticalSection(&cs_bstr_cache);
 133
 134         if(!cache_entry->cnt) {
 135             cache_entry = get_cache_entry(size+sizeof(WCHAR)+BUCKET_SIZE);
 136             if(cache_entry && !cache_entry->cnt)
 137                 cache_entry = NULL;
 138         }
 139
 140         if(cache_entry) {
 141             ret = cache_entry->buf[cache_entry->head++];
 142             cache_entry->head %= BUCKET_BUFFER_SIZE;
 143             cache_entry->cnt--;
 144         }
 145
 146         LeaveCriticalSection(&cs_bstr_cache);
 147
 148         if(cache_entry) {
 149             if(WARN_ON(heap)) {
 150                 size_t tail;
 151
 152                 memset(ret, ARENA_INUSE_FILLER, FIELD_OFFSET(bstr_t, u.ptr[size+sizeof(WCHAR)]));
 153                 tail = bstr_alloc_size(size) - FIELD_OFFSET(bstr_t, u.ptr[size+sizeof(WCHAR)]);
 154                 if(tail)
 155                     memset(ret->u.ptr+size+sizeof(WCHAR), ARENA_TAIL_FILLER, tail);
 156             }
 157             ret->size = size;
 158             return ret;
 159         }
 160     }
 161
 162     ret = HeapAlloc(GetProcessHeap(), 0, bstr_alloc_size(size));
 163     if(ret)
 164         ret->size = size;
 165     return ret;
 166 }
 167
 168 /******************************************************************************
 169  *             SysStringLen  [OLEAUT32.7]
 170  *
 171  * Get the allocated length of a BSTR in wide characters.
 172  *
 173  * PARAMS
 174  *  str [I] BSTR to find the length of
 175  *
 176  * RETURNS
 177  *  The allocated length of str, or 0 if str is NULL.
 178  *
 179  * NOTES
 180  *  See BSTR.
 181  *  The returned length may be different from the length of the string as
 182  *  calculated by lstrlenW(), since it returns the length that was used to
 183  *  allocate the string by SysAllocStringLen().
 184  */
 185 UINT WINAPI SysStringLen(BSTR str)
 186 {
 187     return str ? bstr_from_str(str)->size/sizeof(WCHAR) : 0;
 188 }
 189
 190 /******************************************************************************
 191  *             SysStringByteLen  [OLEAUT32.149]
 192  *
 193  * Get the allocated length of a BSTR in bytes.
 194  *
 195  * PARAMS
 196  *  str [I] BSTR to find the length of
 197  *
 198  * RETURNS
 199  *  The allocated length of str, or 0 if str is NULL.
 200  *
 201  * NOTES
 202  *  See SysStringLen(), BSTR().
 203  */
 204 UINT WINAPI SysStringByteLen(BSTR str)
 205 {
 206     return str ? bstr_from_str(str)->size : 0;
 207 }
 208
 209 /******************************************************************************
 210  *              SysAllocString  [OLEAUT32.2]
 211  *
 212  * Create a BSTR from an OLESTR.
 213  *
 214  * PARAMS
 215  *  str [I] Source to create BSTR from
 216  *
 217  * RETURNS
 218  *  Success: A BSTR allocated with SysAllocStringLen().
 219  *  Failure: NULL, if oleStr is NULL.
 220  *
 221  * NOTES
 222  *  See BSTR.
 223  *  MSDN (October 2001) incorrectly states that NULL is returned if oleStr has
 224  *  a length of 0. Native Win32 and this implementation both return a valid
 225  *  empty BSTR in this case.
 226  */
 227 BSTR WINAPI SysAllocString(LPCOLESTR str)
 228 {
 229     if (!str) return 0;
 230
 231     /* Delegate this to the SysAllocStringLen32 method. */
 232     return SysAllocStringLen(str, lstrlenW(str));
 233 }
 234
 235 /******************************************************************************
 236  *              SysFreeString   [OLEAUT32.6]
 237  *
 238  * Free a BSTR.
 239  *
 240  * PARAMS
 241  *  str [I] BSTR to free.
 242  *
 243  * RETURNS
 244  *  Nothing.
 245  *
 246  * NOTES
 247  *  See BSTR.
 248  *  str may be NULL, in which case this function does nothing.
 249  */
 250 void WINAPI SysFreeString(BSTR str)
 251 {
 252     bstr_cache_entry_t *cache_entry;
 253     bstr_t *bstr;
 254
 255     if(!str)
 256         return;
 257
 258     bstr = bstr_from_str(str);
 259     cache_entry = get_cache_entry(bstr->size+sizeof(WCHAR));
 260     if(cache_entry) {
 261         unsigned i;
 262
 263         EnterCriticalSection(&cs_bstr_cache);
 264
 265         /* According to tests, freeing a string that's already in cache doesn't corrupt anything.
 266          * For that to work we need to search the cache. */
 267         for(i=0; i < cache_entry->cnt; i++) {
 268             if(cache_entry->buf[(cache_entry->head+i) % BUCKET_BUFFER_SIZE] == bstr) {
 269                 WARN_(heap)("String already is in cache!\n");
 270                 LeaveCriticalSection(&cs_bstr_cache);
 271                 return;
 272             }
 273         }
 274
 275         if(cache_entry->cnt < sizeof(cache_entry->buf)/sizeof(*cache_entry->buf)) {
 276             cache_entry->buf[(cache_entry->head+cache_entry->cnt) % BUCKET_BUFFER_SIZE] = bstr;
 277             cache_entry->cnt++;
 278
 279             if(WARN_ON(heap)) {
 280                 unsigned n = bstr_alloc_size(bstr->size) / sizeof(DWORD) - 1;
 281                 bstr->size = ARENA_FREE_FILLER;
 282                 for(i=0; i<n; i++)
 283                     bstr->u.dwptr[i] = ARENA_FREE_FILLER;
 284             }
 285
 286             LeaveCriticalSection(&cs_bstr_cache);
 287             return;
 288         }
 289
 290         LeaveCriticalSection(&cs_bstr_cache);
 291     }
 292
 293     HeapFree(GetProcessHeap(), 0, bstr);
 294 }
 295
 296 /******************************************************************************
 297  *             SysAllocStringLen     [OLEAUT32.4]
 298  *
 299  * Create a BSTR from an OLESTR of a given wide character length.
 300  *
 301  * PARAMS
 302  *  str [I] Source to create BSTR from
 303  *  len [I] Length of oleStr in wide characters
 304  *
 305  * RETURNS
 306  *  Success: A newly allocated BSTR from SysAllocStringByteLen()
 307  *  Failure: NULL, if len is >= 0x80000000, or memory allocation fails.
 308  *
 309  * NOTES
 310  *  See BSTR(), SysAllocStringByteLen().
 311  */
 312 BSTR WINAPI SysAllocStringLen(const OLECHAR *str, unsigned int len)
 313 {
 314     bstr_t *bstr;
 315     DWORD size;
 316
 317     /* Detect integer overflow. */
 318     if (len >= ((UINT_MAX-sizeof(WCHAR)-sizeof(DWORD))/sizeof(WCHAR)))
 319         return NULL;
 320
 321     TRACE("%s\n", debugstr_wn(str, len));
 322
 323     size = len*sizeof(WCHAR);
 324     bstr = alloc_bstr(size);
 325     if(!bstr)
 326         return NULL;
 327
 328     if(str) {
 329         memcpy(bstr->u.str, str, size);
 330         bstr->u.str[len] = 0;
 331     }else {
 332         memset(bstr->u.str, 0, size+sizeof(WCHAR));
 333     }
 334
 335     return bstr->u.str;
 336 }
 337
 338 /******************************************************************************
 339  *             SysReAllocStringLen   [OLEAUT32.5]
 340  *
 341  * Change the length of a previously created BSTR.
 342  *
 343  * PARAMS
 344  *  old [O] BSTR to change the length of
 345  *  str [I] New source for pbstr
 346  *  len [I] Length of oleStr in wide characters
 347  *
 348  * RETURNS
 349  *  Success: 1. The size of pbstr is updated.
 350  *  Failure: 0, if len >= 0x80000000 or memory allocation fails.
 351  *
 352  * NOTES
 353  *  See BSTR(), SysAllocStringByteLen().
 354  *  *old may be changed by this function.
 355  */
 356 int WINAPI SysReAllocStringLen(BSTR* old, const OLECHAR* str, unsigned int len)
 357 {
 358     /* Detect integer overflow. */
 359     if (len >= ((UINT_MAX-sizeof(WCHAR)-sizeof(DWORD))/sizeof(WCHAR)))
 360         return 0;
 361
 362     if (*old!=NULL) {
 363       BSTR old_copy = *old;
 364       DWORD newbytelen = len*sizeof(WCHAR);
 365       bstr_t *bstr = HeapReAlloc(GetProcessHeap(),0,((DWORD*)*old)-1,bstr_alloc_size(newbytelen));
 366       *old = bstr->u.str;
 367       bstr->size = newbytelen;
 368       /* Subtle hidden feature: The old string data is still there
 369        * when 'in' is NULL!
 370        * Some Microsoft program needs it.
 371        * FIXME: Is it a sideeffect of BSTR caching?
 372        */
 373       if (str && old_copy!=str) memmove(*old, str, newbytelen);
 374       (*old)[len] = 0;
 375     } else {
 376       /*
 377        * Allocate the new string
 378        */
 379       *old = SysAllocStringLen(str, len);
 380     }
 381
 382     return 1;
 383 }
 384
 385 /******************************************************************************
 386  *             SysAllocStringByteLen     [OLEAUT32.150]
 387  *
 388  * Create a BSTR from an OLESTR of a given byte length.
 389  *
 390  * PARAMS
 391  *  str [I] Source to create BSTR from
 392  *  len [I] Length of oleStr in bytes
 393  *
 394  * RETURNS
 395  *  Success: A newly allocated BSTR
 396  *  Failure: NULL, if len is >= 0x80000000, or memory allocation fails.
 397  *
 398  * NOTES
 399  *  -If len is 0 or oleStr is NULL the resulting string is empty ("").
 400  *  -This function always NUL terminates the resulting BSTR.
 401  *  -oleStr may be either an LPCSTR or LPCOLESTR, since it is copied
 402  *  without checking for a terminating NUL.
 403  *  See BSTR.
 404  */
 405 BSTR WINAPI SysAllocStringByteLen(LPCSTR str, UINT len)
 406 {
 407     bstr_t *bstr;
 408
 409     /* Detect integer overflow. */
 410     if (len >= (UINT_MAX-sizeof(WCHAR)-sizeof(DWORD)))
 411         return NULL;
 412
 413     bstr = alloc_bstr(len);
 414     if(!bstr)
 415         return NULL;
 416
 417     if(str) {
 418         memcpy(bstr->u.ptr, str, len);
 419         bstr->u.ptr[len] = bstr->u.ptr[len+1] = 0;
 420     }else {
 421         memset(bstr->u.ptr, 0, len+sizeof(WCHAR));
 422     }
 423
 424     return bstr->u.str;
 425 }
 426
 427 /******************************************************************************
 428  *              SysReAllocString        [OLEAUT32.3]
 429  *
 430  * Change the length of a previously created BSTR.
 431  *
 432  * PARAMS
 433  *  old [I/O] BSTR to change the length of
 434  *  str [I]   New source for pbstr
 435  *
 436  * RETURNS
 437  *  Success: 1
 438  *  Failure: 0.
 439  *
 440  * NOTES
 441  *  See BSTR(), SysAllocStringStringLen().
 442  */
 443 INT WINAPI SysReAllocString(LPBSTR old,LPCOLESTR str)
 444 {
 445     /*
 446      * Sanity check
 447      */
 448     if (old==NULL)
 449       return 0;
 450
 451     /*
 452      * Make sure we free the old string.
 453      */
 454     SysFreeString(*old);
 455
 456     /*
 457      * Allocate the new string
 458      */
 459     *old = SysAllocString(str);
 460
 461      return 1;
 462 }
 463
 464 /******************************************************************************
 465  *              SetOaNoCache (OLEAUT32.327)
 466  *
 467  * Instruct Ole Automation not to cache BSTR allocations.
 468  *
 469  * PARAMS
 470  *  None.
 471  *
 472  * RETURNS
 473  *  Nothing.
 474  *
 475  * NOTES
 476  *  SetOaNoCache does not release cached strings, so it leaks by design.
 477  */
 478 void WINAPI SetOaNoCache(void)
 479 {
 480     TRACE("\n");
 481     bstr_cache_enabled = FALSE;
 482 }
 483
 484 static const WCHAR      _delimiter[] = {'!',0}; /* default delimiter apparently */
 485 static const WCHAR      *pdelimiter = &_delimiter[0];
 486
 487 /***********************************************************************
 488  *              RegisterActiveObject (OLEAUT32.33)
 489  *
 490  * Registers an object in the global item table.
 491  *
 492  * PARAMS
 493  *  punk        [I] Object to register.
 494  *  rcid        [I] CLSID of the object.
 495  *  dwFlags     [I] Flags.
 496  *  pdwRegister [O] Address to store cookie of object registration in.
 497  *
 498  * RETURNS
 499  *  Success: S_OK.
 500  *  Failure: HRESULT code.
 501  */
 502 HRESULT WINAPI RegisterActiveObject(
 503         LPUNKNOWN punk,REFCLSID rcid,DWORD dwFlags,LPDWORD pdwRegister
 504 ) {
 505         WCHAR                   guidbuf[80];
 506         HRESULT                 ret;
 507         LPRUNNINGOBJECTTABLE    runobtable;
 508         LPMONIKER               moniker;
 509         DWORD                   rot_flags = ROTFLAGS_REGISTRATIONKEEPSALIVE; /* default registration is strong */
 510
 511         StringFromGUID2(rcid,guidbuf,39);
 512         ret = CreateItemMoniker(pdelimiter,guidbuf,&moniker);
 513         if (FAILED(ret))
 514                 return ret;
 515         ret = GetRunningObjectTable(0,&runobtable);
 516         if (FAILED(ret)) {
 517                 IMoniker_Release(moniker);
 518                 return ret;
 519         }
 520         if(dwFlags == ACTIVEOBJECT_WEAK)
 521           rot_flags = 0;
 522         ret = IRunningObjectTable_Register(runobtable,rot_flags,punk,moniker,pdwRegister);
 523         IRunningObjectTable_Release(runobtable);
 524         IMoniker_Release(moniker);
 525         return ret;
 526 }
 527
 528 /***********************************************************************
 529  *              RevokeActiveObject (OLEAUT32.34)
 530  *
 531  * Revokes an object from the global item table.
 532  *
 533  * PARAMS
 534  *  xregister [I] Registration cookie.
 535  *  reserved  [I] Reserved. Set to NULL.
 536  *
 537  * RETURNS
 538  *  Success: S_OK.
 539  *  Failure: HRESULT code.
 540  */
 541 HRESULT WINAPI RevokeActiveObject(DWORD xregister,LPVOID reserved)
 542 {
 543         LPRUNNINGOBJECTTABLE    runobtable;
 544         HRESULT                 ret;
 545
 546         ret = GetRunningObjectTable(0,&runobtable);
 547         if (FAILED(ret)) return ret;
 548         ret = IRunningObjectTable_Revoke(runobtable,xregister);
 549         if (SUCCEEDED(ret)) ret = S_OK;
 550         IRunningObjectTable_Release(runobtable);
 551         return ret;
 552 }
 553
 554 /***********************************************************************
 555  *              GetActiveObject (OLEAUT32.35)
 556  *
 557  * Gets an object from the global item table.
 558  *
 559  * PARAMS
 560  *  rcid        [I] CLSID of the object.
 561  *  preserved   [I] Reserved. Set to NULL.
 562  *  ppunk       [O] Address to store object into.
 563  *
 564  * RETURNS
 565  *  Success: S_OK.
 566  *  Failure: HRESULT code.
 567  */
 568 HRESULT WINAPI GetActiveObject(REFCLSID rcid,LPVOID preserved,LPUNKNOWN *ppunk)
 569 {
 570         WCHAR                   guidbuf[80];
 571         HRESULT                 ret;
 572         LPRUNNINGOBJECTTABLE    runobtable;
 573         LPMONIKER               moniker;
 574
 575         StringFromGUID2(rcid,guidbuf,39);
 576         ret = CreateItemMoniker(pdelimiter,guidbuf,&moniker);
 577         if (FAILED(ret))
 578                 return ret;
 579         ret = GetRunningObjectTable(0,&runobtable);
 580         if (FAILED(ret)) {
 581                 IMoniker_Release(moniker);
 582                 return ret;
 583         }
 584         ret = IRunningObjectTable_GetObject(runobtable,moniker,ppunk);
 585         IRunningObjectTable_Release(runobtable);
 586         IMoniker_Release(moniker);
 587         return ret;
 588 }
 589
 590
 591 /***********************************************************************
 592  *           OaBuildVersion           [OLEAUT32.170]
 593  *
 594  * Get the Ole Automation build version.
 595  *
 596  * PARAMS
 597  *  None
 598  *
 599  * RETURNS
 600  *  The build version.
 601  *
 602  * NOTES
 603  *  Known oleaut32.dll versions:
 604  *| OLE Ver.  Comments                   Date     Build Ver.
 605  *| --------  -------------------------  ----     ---------
 606  *| OLE 2.1   NT                         1993-95  10 3023
 607  *| OLE 2.1                                       10 3027
 608  *| Win32s    Ver 1.1e                            20 4049
 609  *| OLE 2.20  W95/NT                     1993-96  20 4112
 610  *| OLE 2.20  W95/NT                     1993-96  20 4118
 611  *| OLE 2.20  W95/NT                     1993-96  20 4122
 612  *| OLE 2.30  W95/NT                     1993-98  30 4265
 613  *| OLE 2.40  NT??                       1993-98  40 4267
 614  *| OLE 2.40  W98 SE orig. file          1993-98  40 4275
 615  *| OLE 2.40  W2K orig. file             1993-XX  40 4514
 616  *
 617  * Currently the versions returned are 2.20 for Win3.1, 2.30 for Win95 & NT 3.51,
 618  * and 2.40 for all later versions. The build number is maximum, i.e. 0xffff.
 619  */
 620 ULONG WINAPI OaBuildVersion(void)
 621 {
 622     switch(GetVersion() & 0x8000ffff)  /* mask off build number */
 623     {
 624     case 0x80000a03:  /* WIN31 */
 625                 return MAKELONG(0xffff, 20);
 626     case 0x00003303:  /* NT351 */
 627                 return MAKELONG(0xffff, 30);
 628     case 0x80000004:  /* WIN95; I'd like to use the "standard" w95 minor
 629                          version here (30), but as we still use w95
 630                          as default winver (which is good IMHO), I better
 631                          play safe and use the latest value for w95 for now.
 632                          Change this as soon as default winver gets changed
 633                          to something more recent */
 634     case 0x80000a04:  /* WIN98 */
 635     case 0x00000004:  /* NT40 */
 636     case 0x00000005:  /* W2K */
 637                 return MAKELONG(0xffff, 40);
 638     case 0x00000105:  /* WinXP */
 639     case 0x00000006:  /* Vista */
 640     case 0x00000106:  /* Win7 */
 641                 return MAKELONG(0xffff, 50);
 642     default:
 643                 FIXME("Version value not known yet. Please investigate it !\n");
 644                 return MAKELONG(0xffff, 40);  /* for now return the same value as for w2k */
 645     }
 646 }
 647
 648 /******************************************************************************
 649  *              OleTranslateColor       [OLEAUT32.421]
 650  *
 651  * Convert an OLE_COLOR to a COLORREF.
 652  *
 653  * PARAMS
 654  *  clr       [I] Color to convert
 655  *  hpal      [I] Handle to a palette for the conversion
 656  *  pColorRef [O] Destination for converted color, or NULL to test if the conversion is ok
 657  *
 658  * RETURNS
 659  *  Success: S_OK. The conversion is ok, and pColorRef contains the converted color if non-NULL.
 660  *  Failure: E_INVALIDARG, if any argument is invalid.
 661  *
 662  * FIXME
 663  *  Document the conversion rules.
 664  */
 665 HRESULT WINAPI OleTranslateColor(
 666   OLE_COLOR clr,
 667   HPALETTE  hpal,
 668   COLORREF* pColorRef)
 669 {
 670   COLORREF colorref;
 671   BYTE b = HIBYTE(HIWORD(clr));
 672
 673   TRACE("(%08x, %p, %p)\n", clr, hpal, pColorRef);
 674
 675   /*
 676    * In case pColorRef is NULL, provide our own to simplify the code.
 677    */
 678   if (pColorRef == NULL)
 679     pColorRef = &colorref;
 680
 681   switch (b)
 682   {
 683     case 0x00:
 684     {
 685       if (hpal != 0)
 686         *pColorRef =  PALETTERGB(GetRValue(clr),
 687                                  GetGValue(clr),
 688                                  GetBValue(clr));
 689       else
 690         *pColorRef = clr;
 691
 692       break;
 693     }
 694
 695     case 0x01:
 696     {
 697       if (hpal != 0)
 698       {
 699         PALETTEENTRY pe;
 700         /*
 701          * Validate the palette index.
 702          */
 703         if (GetPaletteEntries(hpal, LOWORD(clr), 1, &pe) == 0)
 704           return E_INVALIDARG;
 705       }
 706
 707       *pColorRef = clr;
 708
 709       break;
 710     }
 711
 712     case 0x02:
 713       *pColorRef = clr;
 714       break;
 715
 716     case 0x80:
 717     {
 718       int index = LOBYTE(LOWORD(clr));
 719
 720       /*
 721        * Validate GetSysColor index.
 722        */
 723       if ((index < COLOR_SCROLLBAR) || (index > COLOR_MENUBAR))
 724         return E_INVALIDARG;
 725
 726       *pColorRef =  GetSysColor(index);
 727
 728       break;
 729     }
 730
 731     default:
 732       return E_INVALIDARG;
 733   }
 734
 735   return S_OK;
 736 }
 737
 738 extern HRESULT WINAPI OLEAUTPS_DllGetClassObject(REFCLSID, REFIID, LPVOID *) DECLSPEC_HIDDEN;
 739 extern BOOL WINAPI OLEAUTPS_DllMain(HINSTANCE, DWORD, LPVOID) DECLSPEC_HIDDEN;
 740 extern HRESULT WINAPI OLEAUTPS_DllRegisterServer(void) DECLSPEC_HIDDEN;
 741 extern HRESULT WINAPI OLEAUTPS_DllUnregisterServer(void) DECLSPEC_HIDDEN;
 742
 743 extern void _get_STDFONT_CF(LPVOID *);
 744 extern void _get_STDPIC_CF(LPVOID *);
 745
 746 static HRESULT WINAPI PSDispatchFacBuf_QueryInterface(IPSFactoryBuffer *iface, REFIID riid, void **ppv)
 747 {
 748     if (IsEqualIID(riid, &IID_IUnknown) ||
 749         IsEqualIID(riid, &IID_IPSFactoryBuffer))
 750     {
 751         IPSFactoryBuffer_AddRef(iface);
 752         *ppv = iface;
 753         return S_OK;
 754     }
 755     return E_NOINTERFACE;
 756 }
 757
 758 static ULONG WINAPI PSDispatchFacBuf_AddRef(IPSFactoryBuffer *iface)
 759 {
 760     return 2;
 761 }
 762
 763 static ULONG WINAPI PSDispatchFacBuf_Release(IPSFactoryBuffer *iface)
 764 {
 765     return 1;
 766 }
 767
 768 static HRESULT WINAPI PSDispatchFacBuf_CreateProxy(IPSFactoryBuffer *iface, IUnknown *pUnkOuter, REFIID riid, IRpcProxyBuffer **ppProxy, void **ppv)
 769 {
 770     IPSFactoryBuffer *pPSFB;
 771     HRESULT hr;
 772
 773     if (IsEqualIID(riid, &IID_IDispatch))
 774         hr = OLEAUTPS_DllGetClassObject(&CLSID_PSFactoryBuffer, &IID_IPSFactoryBuffer, (void **)&pPSFB);
 775     else
 776         hr = TMARSHAL_DllGetClassObject(&CLSID_PSOAInterface, &IID_IPSFactoryBuffer, (void **)&pPSFB);
 777
 778     if (FAILED(hr)) return hr;
 779
 780     hr = IPSFactoryBuffer_CreateProxy(pPSFB, pUnkOuter, riid, ppProxy, ppv);
 781
 782     IPSFactoryBuffer_Release(pPSFB);
 783     return hr;
 784 }
 785
 786 static HRESULT WINAPI PSDispatchFacBuf_CreateStub(IPSFactoryBuffer *iface, REFIID riid, IUnknown *pUnkOuter, IRpcStubBuffer **ppStub)
 787 {
 788     IPSFactoryBuffer *pPSFB;
 789     HRESULT hr;
 790
 791     if (IsEqualIID(riid, &IID_IDispatch))
 792         hr = OLEAUTPS_DllGetClassObject(&CLSID_PSFactoryBuffer, &IID_IPSFactoryBuffer, (void **)&pPSFB);
 793     else
 794         hr = TMARSHAL_DllGetClassObject(&CLSID_PSOAInterface, &IID_IPSFactoryBuffer, (void **)&pPSFB);
 795
 796     if (FAILED(hr)) return hr;
 797
 798     hr = IPSFactoryBuffer_CreateStub(pPSFB, riid, pUnkOuter, ppStub);
 799
 800     IPSFactoryBuffer_Release(pPSFB);
 801     return hr;
 802 }
 803
 804 static const IPSFactoryBufferVtbl PSDispatchFacBuf_Vtbl =
 805 {
 806     PSDispatchFacBuf_QueryInterface,
 807     PSDispatchFacBuf_AddRef,
 808     PSDispatchFacBuf_Release,
 809     PSDispatchFacBuf_CreateProxy,
 810     PSDispatchFacBuf_CreateStub
 811 };
 812
 813 /* This is the whole PSFactoryBuffer object, just the vtableptr */
 814 static const IPSFactoryBufferVtbl *pPSDispatchFacBuf = &PSDispatchFacBuf_Vtbl;
 815
 816 /***********************************************************************
 817  *              DllGetClassObject (OLEAUT32.@)
 818  */
 819 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 820 {
 821     *ppv = NULL;
 822     if (IsEqualGUID(rclsid,&CLSID_StdFont)) {
 823         if (IsEqualGUID(iid,&IID_IClassFactory)) {
 824             _get_STDFONT_CF(ppv);
 825             IClassFactory_AddRef((IClassFactory*)*ppv);
 826             return S_OK;
 827         }
 828     }
 829     if (IsEqualGUID(rclsid,&CLSID_StdPicture)) {
 830         if (IsEqualGUID(iid,&IID_IClassFactory)) {
 831             _get_STDPIC_CF(ppv);
 832             IClassFactory_AddRef((IClassFactory*)*ppv);
 833             return S_OK;
 834         }
 835     }
 836     if (IsEqualCLSID(rclsid, &CLSID_PSDispatch) && IsEqualIID(iid, &IID_IPSFactoryBuffer)) {
 837         *ppv = &pPSDispatchFacBuf;
 838         IPSFactoryBuffer_AddRef((IPSFactoryBuffer *)*ppv);
 839         return S_OK;
 840     }
 841     if (IsEqualGUID(rclsid,&CLSID_PSOAInterface)) {
 842         if (S_OK==TMARSHAL_DllGetClassObject(rclsid,iid,ppv))
 843             return S_OK;
 844         /*FALLTHROUGH*/
 845     }
 846     if (IsEqualCLSID(rclsid, &CLSID_PSTypeInfo) ||
 847         IsEqualCLSID(rclsid, &CLSID_PSTypeLib) ||
 848         IsEqualCLSID(rclsid, &CLSID_PSDispatch) ||
 849         IsEqualCLSID(rclsid, &CLSID_PSEnumVariant))
 850         return OLEAUTPS_DllGetClassObject(&CLSID_PSFactoryBuffer, iid, ppv);
 851
 852     return OLEAUTPS_DllGetClassObject(rclsid, iid, ppv);
 853 }
 854
 855 /***********************************************************************
 856  *              DllCanUnloadNow (OLEAUT32.@)
 857  *
 858  * Determine if this dll can be unloaded from the callers address space.
 859  *
 860  * PARAMS
 861  *  None.
 862  *
 863  * RETURNS
 864  *  Always returns S_FALSE. This dll cannot be unloaded.
 865  */
 866 HRESULT WINAPI DllCanUnloadNow(void)
 867 {
 868     return S_FALSE;
 869 }
 870
 871 /*****************************************************************************
 872  *              DllMain         [OLEAUT32.@]
 873  */
 874 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
 875 {
 876     static const WCHAR oanocacheW[] = {'o','a','n','o','c','a','c','h','e',0};
 877
 878     if(fdwReason == DLL_PROCESS_ATTACH)
 879         bstr_cache_enabled = !GetEnvironmentVariableW(oanocacheW, NULL, 0);
 880
 881     return OLEAUTPS_DllMain( hInstDll, fdwReason, lpvReserved );
 882 }
 883
 884 /***********************************************************************
 885  *              DllRegisterServer (OLEAUT32.@)
 886  */
 887 HRESULT WINAPI DllRegisterServer(void)
 888 {
 889     return OLEAUTPS_DllRegisterServer();
 890 }
 891
 892 /***********************************************************************
 893  *              DllUnregisterServer (OLEAUT32.@)
 894  */
 895 HRESULT WINAPI DllUnregisterServer(void)
 896 {
 897     return OLEAUTPS_DllUnregisterServer();
 898 }
 899
 900 /***********************************************************************
 901  *              OleIconToCursor (OLEAUT32.415)
 902  */
 903 HCURSOR WINAPI OleIconToCursor( HINSTANCE hinstExe, HICON hIcon)
 904 {
 905     FIXME("(%p,%p), partially implemented.\n",hinstExe,hIcon);
 906     /* FIXME: make an extended conversation from HICON to HCURSOR */
 907     return CopyCursor(hIcon);
 908 }