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[reactos.git] / dll / win32 / ole32 / stg_prop.c
1 /*
2 * Compound Storage (32 bit version)
3 * Storage implementation
4 *
5 * This file contains the compound file implementation
6 * of the storage interface.
7 *
8 * Copyright 1999 Francis Beaudet
9 * Copyright 1999 Sylvain St-Germain
10 * Copyright 1999 Thuy Nguyen
11 * Copyright 2005 Mike McCormack
12 * Copyright 2005 Juan Lang
13 *
14 * This library is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU Lesser General Public
16 * License as published by the Free Software Foundation; either
17 * version 2.1 of the License, or (at your option) any later version.
18 *
19 * This library is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * Lesser General Public License for more details.
23 *
24 * You should have received a copy of the GNU Lesser General Public
25 * License along with this library; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 *
28 * TODO:
29 * - I don't honor the maximum property set size.
30 * - Certain bogus files could result in reading past the end of a buffer.
31 * - Mac-generated files won't be read correctly, even if they're little
32 * endian, because I disregard whether the generator was a Mac. This means
33 * strings will probably be munged (as I don't understand Mac scripts.)
34 * - Not all PROPVARIANT types are supported.
35 * - User defined properties are not supported, see comment in
36 * PropertyStorage_ReadFromStream
37 */
38
39 #include <assert.h>
40 #include <stdarg.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44
45 #define COBJMACROS
46 #define NONAMELESSUNION
47 #define NONAMELESSSTRUCT
48
49 #include "windef.h"
50 #include "winbase.h"
51 #include "winnls.h"
52 #include "winuser.h"
53 #include "wine/unicode.h"
54 #include "wine/debug.h"
55 #include "dictionary.h"
56 #include "storage32.h"
57 #include "enumx.h"
58
59 WINE_DEFAULT_DEBUG_CHANNEL(storage);
60
61 static inline StorageImpl *impl_from_IPropertySetStorage( IPropertySetStorage *iface )
62 {
63 return (StorageImpl *)((char*)iface - FIELD_OFFSET(StorageImpl, base.pssVtbl));
64 }
65
66 /* These are documented in MSDN,
67 * but they don't seem to be in any header file.
68 */
69 #define PROPSETHDR_BYTEORDER_MAGIC 0xfffe
70 #define PROPSETHDR_OSVER_KIND_WIN16 0
71 #define PROPSETHDR_OSVER_KIND_MAC 1
72 #define PROPSETHDR_OSVER_KIND_WIN32 2
73
74 #define CP_UNICODE 1200
75
76 #define MAX_VERSION_0_PROP_NAME_LENGTH 256
77
78 #define CFTAG_WINDOWS (-1L)
79 #define CFTAG_MACINTOSH (-2L)
80 #define CFTAG_FMTID (-3L)
81 #define CFTAG_NODATA 0L
82
83 typedef struct tagPROPERTYSETHEADER
84 {
85 WORD wByteOrder; /* always 0xfffe */
86 WORD wFormat; /* can be zero or one */
87 DWORD dwOSVer; /* OS version of originating system */
88 CLSID clsid; /* application CLSID */
89 DWORD reserved; /* always 1 */
90 } PROPERTYSETHEADER;
91
92 typedef struct tagFORMATIDOFFSET
93 {
94 FMTID fmtid;
95 DWORD dwOffset; /* from beginning of stream */
96 } FORMATIDOFFSET;
97
98 typedef struct tagPROPERTYSECTIONHEADER
99 {
100 DWORD cbSection;
101 DWORD cProperties;
102 } PROPERTYSECTIONHEADER;
103
104 typedef struct tagPROPERTYIDOFFSET
105 {
106 DWORD propid;
107 DWORD dwOffset; /* from beginning of section */
108 } PROPERTYIDOFFSET;
109
110 typedef struct tagPropertyStorage_impl PropertyStorage_impl;
111
112 /* Initializes the property storage from the stream (and undoes any uncommitted
113 * changes in the process.) Returns an error if there is an error reading or
114 * if the stream format doesn't match what's expected.
115 */
116 static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *);
117
118 static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *);
119
120 /* Creates the dictionaries used by the property storage. If successful, all
121 * the dictionaries have been created. If failed, none has been. (This makes
122 * it a bit easier to deal with destroying them.)
123 */
124 static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *);
125
126 static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *);
127
128 /* Copies from propvar to prop. If propvar's type is VT_LPSTR, copies the
129 * string using PropertyStorage_StringCopy.
130 */
131 static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop,
132 const PROPVARIANT *propvar, LCID targetCP, LCID srcCP);
133
134 /* Copies the string src, which is encoded using code page srcCP, and returns
135 * it in *dst, in the code page specified by targetCP. The returned string is
136 * allocated using CoTaskMemAlloc.
137 * If srcCP is CP_UNICODE, src is in fact an LPCWSTR. Similarly, if targetCP
138 * is CP_UNICODE, the returned string is in fact an LPWSTR.
139 * Returns S_OK on success, something else on failure.
140 */
141 static HRESULT PropertyStorage_StringCopy(LPCSTR src, LCID srcCP, LPSTR *dst,
142 LCID targetCP);
143
144 static const IPropertyStorageVtbl IPropertyStorage_Vtbl;
145 static const IEnumSTATPROPSETSTGVtbl IEnumSTATPROPSETSTG_Vtbl;
146 static const IEnumSTATPROPSTGVtbl IEnumSTATPROPSTG_Vtbl;
147 static HRESULT create_EnumSTATPROPSETSTG(StorageImpl *, IEnumSTATPROPSETSTG**);
148 static HRESULT create_EnumSTATPROPSTG(PropertyStorage_impl *, IEnumSTATPROPSTG**);
149
150 /***********************************************************************
151 * Implementation of IPropertyStorage
152 */
153 struct tagPropertyStorage_impl
154 {
155 const IPropertyStorageVtbl *vtbl;
156 LONG ref;
157 CRITICAL_SECTION cs;
158 IStream *stm;
159 BOOL dirty;
160 FMTID fmtid;
161 CLSID clsid;
162 WORD format;
163 DWORD originatorOS;
164 DWORD grfFlags;
165 DWORD grfMode;
166 UINT codePage;
167 LCID locale;
168 PROPID highestProp;
169 struct dictionary *name_to_propid;
170 struct dictionary *propid_to_name;
171 struct dictionary *propid_to_prop;
172 };
173
174 /************************************************************************
175 * IPropertyStorage_fnQueryInterface (IPropertyStorage)
176 */
177 static HRESULT WINAPI IPropertyStorage_fnQueryInterface(
178 IPropertyStorage *iface,
179 REFIID riid,
180 void** ppvObject)
181 {
182 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
183
184 if ( (This==0) || (ppvObject==0) )
185 return E_INVALIDARG;
186
187 *ppvObject = 0;
188
189 if (IsEqualGUID(&IID_IUnknown, riid) ||
190 IsEqualGUID(&IID_IPropertyStorage, riid))
191 {
192 IPropertyStorage_AddRef(iface);
193 *ppvObject = iface;
194 return S_OK;
195 }
196
197 return E_NOINTERFACE;
198 }
199
200 /************************************************************************
201 * IPropertyStorage_fnAddRef (IPropertyStorage)
202 */
203 static ULONG WINAPI IPropertyStorage_fnAddRef(
204 IPropertyStorage *iface)
205 {
206 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
207 return InterlockedIncrement(&This->ref);
208 }
209
210 /************************************************************************
211 * IPropertyStorage_fnRelease (IPropertyStorage)
212 */
213 static ULONG WINAPI IPropertyStorage_fnRelease(
214 IPropertyStorage *iface)
215 {
216 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
217 ULONG ref;
218
219 ref = InterlockedDecrement(&This->ref);
220 if (ref == 0)
221 {
222 TRACE("Destroying %p\n", This);
223 if (This->dirty)
224 IPropertyStorage_Commit(iface, STGC_DEFAULT);
225 IStream_Release(This->stm);
226 This->cs.DebugInfo->Spare[0] = 0;
227 DeleteCriticalSection(&This->cs);
228 PropertyStorage_DestroyDictionaries(This);
229 HeapFree(GetProcessHeap(), 0, This);
230 }
231 return ref;
232 }
233
234 static PROPVARIANT *PropertyStorage_FindProperty(PropertyStorage_impl *This,
235 DWORD propid)
236 {
237 PROPVARIANT *ret = NULL;
238
239 dictionary_find(This->propid_to_prop, (void *)propid, (void **)&ret);
240 TRACE("returning %p\n", ret);
241 return ret;
242 }
243
244 /* Returns NULL if name is NULL. */
245 static PROPVARIANT *PropertyStorage_FindPropertyByName(
246 PropertyStorage_impl *This, LPCWSTR name)
247 {
248 PROPVARIANT *ret = NULL;
249 PROPID propid;
250
251 if (!name)
252 return NULL;
253 if (This->codePage == CP_UNICODE)
254 {
255 if (dictionary_find(This->name_to_propid, name, (void **)&propid))
256 ret = PropertyStorage_FindProperty(This, propid);
257 }
258 else
259 {
260 LPSTR ansiName;
261 HRESULT hr = PropertyStorage_StringCopy((LPCSTR)name, CP_UNICODE,
262 &ansiName, This->codePage);
263
264 if (SUCCEEDED(hr))
265 {
266 if (dictionary_find(This->name_to_propid, ansiName,
267 (void **)&propid))
268 ret = PropertyStorage_FindProperty(This, propid);
269 CoTaskMemFree(ansiName);
270 }
271 }
272 TRACE("returning %p\n", ret);
273 return ret;
274 }
275
276 static LPWSTR PropertyStorage_FindPropertyNameById(PropertyStorage_impl *This,
277 DWORD propid)
278 {
279 LPWSTR ret = NULL;
280
281 dictionary_find(This->propid_to_name, (void *)propid, (void **)&ret);
282 TRACE("returning %p\n", ret);
283 return ret;
284 }
285
286 /************************************************************************
287 * IPropertyStorage_fnReadMultiple (IPropertyStorage)
288 */
289 static HRESULT WINAPI IPropertyStorage_fnReadMultiple(
290 IPropertyStorage* iface,
291 ULONG cpspec,
292 const PROPSPEC rgpspec[],
293 PROPVARIANT rgpropvar[])
294 {
295 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
296 HRESULT hr = S_OK;
297 ULONG i;
298
299 TRACE("(%p, %d, %p, %p)\n", iface, cpspec, rgpspec, rgpropvar);
300
301 if (!cpspec)
302 return S_FALSE;
303 if (!rgpspec || !rgpropvar)
304 return E_INVALIDARG;
305 EnterCriticalSection(&This->cs);
306 for (i = 0; i < cpspec; i++)
307 {
308 PropVariantInit(&rgpropvar[i]);
309 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
310 {
311 PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This,
312 rgpspec[i].u.lpwstr);
313
314 if (prop)
315 PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, GetACP(),
316 This->codePage);
317 }
318 else
319 {
320 switch (rgpspec[i].u.propid)
321 {
322 case PID_CODEPAGE:
323 rgpropvar[i].vt = VT_I2;
324 rgpropvar[i].u.iVal = This->codePage;
325 break;
326 case PID_LOCALE:
327 rgpropvar[i].vt = VT_I4;
328 rgpropvar[i].u.lVal = This->locale;
329 break;
330 default:
331 {
332 PROPVARIANT *prop = PropertyStorage_FindProperty(This,
333 rgpspec[i].u.propid);
334
335 if (prop)
336 PropertyStorage_PropVariantCopy(&rgpropvar[i], prop,
337 GetACP(), This->codePage);
338 else
339 hr = S_FALSE;
340 }
341 }
342 }
343 }
344 LeaveCriticalSection(&This->cs);
345 return hr;
346 }
347
348 static HRESULT PropertyStorage_StringCopy(LPCSTR src, LCID srcCP, LPSTR *dst,
349 LCID dstCP)
350 {
351 HRESULT hr = S_OK;
352 int len;
353
354 TRACE("%s, %p, %d, %d\n",
355 srcCP == CP_UNICODE ? debugstr_w((LPCWSTR)src) : debugstr_a(src), dst,
356 dstCP, srcCP);
357 assert(src);
358 assert(dst);
359 *dst = NULL;
360 if (dstCP == srcCP)
361 {
362 size_t len;
363
364 if (dstCP == CP_UNICODE)
365 len = (strlenW((LPCWSTR)src) + 1) * sizeof(WCHAR);
366 else
367 len = strlen(src) + 1;
368 *dst = CoTaskMemAlloc(len * sizeof(WCHAR));
369 if (!*dst)
370 hr = STG_E_INSUFFICIENTMEMORY;
371 else
372 memcpy(*dst, src, len);
373 }
374 else
375 {
376 if (dstCP == CP_UNICODE)
377 {
378 len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0);
379 *dst = CoTaskMemAlloc(len * sizeof(WCHAR));
380 if (!*dst)
381 hr = STG_E_INSUFFICIENTMEMORY;
382 else
383 MultiByteToWideChar(srcCP, 0, src, -1, (LPWSTR)*dst, len);
384 }
385 else
386 {
387 LPCWSTR wideStr = NULL;
388 LPWSTR wideStr_tmp = NULL;
389
390 if (srcCP == CP_UNICODE)
391 wideStr = (LPCWSTR)src;
392 else
393 {
394 len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0);
395 wideStr_tmp = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
396 if (wideStr_tmp)
397 {
398 MultiByteToWideChar(srcCP, 0, src, -1, wideStr_tmp, len);
399 wideStr = wideStr_tmp;
400 }
401 else
402 hr = STG_E_INSUFFICIENTMEMORY;
403 }
404 if (SUCCEEDED(hr))
405 {
406 len = WideCharToMultiByte(dstCP, 0, wideStr, -1, NULL, 0,
407 NULL, NULL);
408 *dst = CoTaskMemAlloc(len);
409 if (!*dst)
410 hr = STG_E_INSUFFICIENTMEMORY;
411 else
412 {
413 BOOL defCharUsed = FALSE;
414
415 if (WideCharToMultiByte(dstCP, 0, wideStr, -1, *dst, len,
416 NULL, &defCharUsed) == 0 || defCharUsed)
417 {
418 CoTaskMemFree(*dst);
419 *dst = NULL;
420 hr = HRESULT_FROM_WIN32(ERROR_NO_UNICODE_TRANSLATION);
421 }
422 }
423 }
424 HeapFree(GetProcessHeap(), 0, wideStr_tmp);
425 }
426 }
427 TRACE("returning 0x%08x (%s)\n", hr,
428 dstCP == CP_UNICODE ? debugstr_w((LPCWSTR)*dst) : debugstr_a(*dst));
429 return hr;
430 }
431
432 static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop,
433 const PROPVARIANT *propvar, LCID targetCP, LCID srcCP)
434 {
435 HRESULT hr = S_OK;
436
437 assert(prop);
438 assert(propvar);
439 if (propvar->vt == VT_LPSTR)
440 {
441 hr = PropertyStorage_StringCopy(propvar->u.pszVal, srcCP,
442 &prop->u.pszVal, targetCP);
443 if (SUCCEEDED(hr))
444 prop->vt = VT_LPSTR;
445 }
446 else
447 PropVariantCopy(prop, propvar);
448 return hr;
449 }
450
451 /* Stores the property with id propid and value propvar into this property
452 * storage. lcid is ignored if propvar's type is not VT_LPSTR. If propvar's
453 * type is VT_LPSTR, converts the string using lcid as the source code page
454 * and This->codePage as the target code page before storing.
455 * As a side effect, may change This->format to 1 if the type of propvar is
456 * a version 1-only property.
457 */
458 static HRESULT PropertyStorage_StorePropWithId(PropertyStorage_impl *This,
459 PROPID propid, const PROPVARIANT *propvar, LCID lcid)
460 {
461 HRESULT hr = S_OK;
462 PROPVARIANT *prop = PropertyStorage_FindProperty(This, propid);
463
464 assert(propvar);
465 if (propvar->vt & VT_BYREF || propvar->vt & VT_ARRAY)
466 This->format = 1;
467 switch (propvar->vt)
468 {
469 case VT_DECIMAL:
470 case VT_I1:
471 case VT_INT:
472 case VT_UINT:
473 case VT_VECTOR|VT_I1:
474 This->format = 1;
475 }
476 TRACE("Setting 0x%08x to type %d\n", propid, propvar->vt);
477 if (prop)
478 {
479 PropVariantClear(prop);
480 hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage,
481 lcid);
482 }
483 else
484 {
485 prop = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
486 sizeof(PROPVARIANT));
487 if (prop)
488 {
489 hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage,
490 lcid);
491 if (SUCCEEDED(hr))
492 {
493 dictionary_insert(This->propid_to_prop, (void *)propid, prop);
494 if (propid > This->highestProp)
495 This->highestProp = propid;
496 }
497 else
498 HeapFree(GetProcessHeap(), 0, prop);
499 }
500 else
501 hr = STG_E_INSUFFICIENTMEMORY;
502 }
503 return hr;
504 }
505
506 /* Adds the name srcName to the name dictionaries, mapped to property ID id.
507 * srcName is encoded in code page cp, and is converted to This->codePage.
508 * If cp is CP_UNICODE, srcName is actually a unicode string.
509 * As a side effect, may change This->format to 1 if srcName is too long for
510 * a version 0 property storage.
511 * Doesn't validate id.
512 */
513 static HRESULT PropertyStorage_StoreNameWithId(PropertyStorage_impl *This,
514 LPCSTR srcName, LCID cp, PROPID id)
515 {
516 LPSTR name;
517 HRESULT hr;
518
519 assert(srcName);
520
521 hr = PropertyStorage_StringCopy(srcName, cp, &name, This->codePage);
522 if (SUCCEEDED(hr))
523 {
524 if (This->codePage == CP_UNICODE)
525 {
526 if (lstrlenW((LPWSTR)name) >= MAX_VERSION_0_PROP_NAME_LENGTH)
527 This->format = 1;
528 }
529 else
530 {
531 if (strlen(name) >= MAX_VERSION_0_PROP_NAME_LENGTH)
532 This->format = 1;
533 }
534 TRACE("Adding prop name %s, propid %d\n",
535 This->codePage == CP_UNICODE ? debugstr_w((LPCWSTR)name) :
536 debugstr_a(name), id);
537 dictionary_insert(This->name_to_propid, name, (void *)id);
538 dictionary_insert(This->propid_to_name, (void *)id, name);
539 }
540 return hr;
541 }
542
543 /************************************************************************
544 * IPropertyStorage_fnWriteMultiple (IPropertyStorage)
545 */
546 static HRESULT WINAPI IPropertyStorage_fnWriteMultiple(
547 IPropertyStorage* iface,
548 ULONG cpspec,
549 const PROPSPEC rgpspec[],
550 const PROPVARIANT rgpropvar[],
551 PROPID propidNameFirst)
552 {
553 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
554 HRESULT hr = S_OK;
555 ULONG i;
556
557 TRACE("(%p, %d, %p, %p)\n", iface, cpspec, rgpspec, rgpropvar);
558
559 if (cpspec && (!rgpspec || !rgpropvar))
560 return E_INVALIDARG;
561 if (!(This->grfMode & STGM_READWRITE))
562 return STG_E_ACCESSDENIED;
563 EnterCriticalSection(&This->cs);
564 This->dirty = TRUE;
565 This->originatorOS = (DWORD)MAKELONG(LOWORD(GetVersion()),
566 PROPSETHDR_OSVER_KIND_WIN32) ;
567 for (i = 0; i < cpspec; i++)
568 {
569 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
570 {
571 PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This,
572 rgpspec[i].u.lpwstr);
573
574 if (prop)
575 PropVariantCopy(prop, &rgpropvar[i]);
576 else
577 {
578 /* Note that I don't do the special cases here that I do below,
579 * because naming the special PIDs isn't supported.
580 */
581 if (propidNameFirst < PID_FIRST_USABLE ||
582 propidNameFirst >= PID_MIN_READONLY)
583 hr = STG_E_INVALIDPARAMETER;
584 else
585 {
586 PROPID nextId = max(propidNameFirst, This->highestProp + 1);
587
588 hr = PropertyStorage_StoreNameWithId(This,
589 (LPCSTR)rgpspec[i].u.lpwstr, CP_UNICODE, nextId);
590 if (SUCCEEDED(hr))
591 hr = PropertyStorage_StorePropWithId(This, nextId,
592 &rgpropvar[i], GetACP());
593 }
594 }
595 }
596 else
597 {
598 switch (rgpspec[i].u.propid)
599 {
600 case PID_DICTIONARY:
601 /* Can't set the dictionary */
602 hr = STG_E_INVALIDPARAMETER;
603 break;
604 case PID_CODEPAGE:
605 /* Can only set the code page if nothing else has been set */
606 if (dictionary_num_entries(This->propid_to_prop) == 0 &&
607 rgpropvar[i].vt == VT_I2)
608 {
609 This->codePage = rgpropvar[i].u.iVal;
610 if (This->codePage == CP_UNICODE)
611 This->grfFlags &= ~PROPSETFLAG_ANSI;
612 else
613 This->grfFlags |= PROPSETFLAG_ANSI;
614 }
615 else
616 hr = STG_E_INVALIDPARAMETER;
617 break;
618 case PID_LOCALE:
619 /* Can only set the locale if nothing else has been set */
620 if (dictionary_num_entries(This->propid_to_prop) == 0 &&
621 rgpropvar[i].vt == VT_I4)
622 This->locale = rgpropvar[i].u.lVal;
623 else
624 hr = STG_E_INVALIDPARAMETER;
625 break;
626 case PID_ILLEGAL:
627 /* silently ignore like MSDN says */
628 break;
629 default:
630 if (rgpspec[i].u.propid >= PID_MIN_READONLY)
631 hr = STG_E_INVALIDPARAMETER;
632 else
633 hr = PropertyStorage_StorePropWithId(This,
634 rgpspec[i].u.propid, &rgpropvar[i], GetACP());
635 }
636 }
637 }
638 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
639 IPropertyStorage_Commit(iface, STGC_DEFAULT);
640 LeaveCriticalSection(&This->cs);
641 return hr;
642 }
643
644 /************************************************************************
645 * IPropertyStorage_fnDeleteMultiple (IPropertyStorage)
646 */
647 static HRESULT WINAPI IPropertyStorage_fnDeleteMultiple(
648 IPropertyStorage* iface,
649 ULONG cpspec,
650 const PROPSPEC rgpspec[])
651 {
652 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
653 ULONG i;
654 HRESULT hr;
655
656 TRACE("(%p, %d, %p)\n", iface, cpspec, rgpspec);
657
658 if (cpspec && !rgpspec)
659 return E_INVALIDARG;
660 if (!(This->grfMode & STGM_READWRITE))
661 return STG_E_ACCESSDENIED;
662 hr = S_OK;
663 EnterCriticalSection(&This->cs);
664 This->dirty = TRUE;
665 for (i = 0; i < cpspec; i++)
666 {
667 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
668 {
669 PROPID propid;
670
671 if (dictionary_find(This->name_to_propid,
672 (void *)rgpspec[i].u.lpwstr, (void **)&propid))
673 dictionary_remove(This->propid_to_prop, (void *)propid);
674 }
675 else
676 {
677 if (rgpspec[i].u.propid >= PID_FIRST_USABLE &&
678 rgpspec[i].u.propid < PID_MIN_READONLY)
679 dictionary_remove(This->propid_to_prop,
680 (void *)rgpspec[i].u.propid);
681 else
682 hr = STG_E_INVALIDPARAMETER;
683 }
684 }
685 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
686 IPropertyStorage_Commit(iface, STGC_DEFAULT);
687 LeaveCriticalSection(&This->cs);
688 return hr;
689 }
690
691 /************************************************************************
692 * IPropertyStorage_fnReadPropertyNames (IPropertyStorage)
693 */
694 static HRESULT WINAPI IPropertyStorage_fnReadPropertyNames(
695 IPropertyStorage* iface,
696 ULONG cpropid,
697 const PROPID rgpropid[],
698 LPOLESTR rglpwstrName[])
699 {
700 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
701 ULONG i;
702 HRESULT hr = S_FALSE;
703
704 TRACE("(%p, %d, %p, %p)\n", iface, cpropid, rgpropid, rglpwstrName);
705
706 if (cpropid && (!rgpropid || !rglpwstrName))
707 return E_INVALIDARG;
708 EnterCriticalSection(&This->cs);
709 for (i = 0; i < cpropid && SUCCEEDED(hr); i++)
710 {
711 LPWSTR name = PropertyStorage_FindPropertyNameById(This, rgpropid[i]);
712
713 if (name)
714 {
715 size_t len = lstrlenW(name);
716
717 hr = S_OK;
718 rglpwstrName[i] = CoTaskMemAlloc((len + 1) * sizeof(WCHAR));
719 if (rglpwstrName)
720 memcpy(rglpwstrName, name, (len + 1) * sizeof(WCHAR));
721 else
722 hr = STG_E_INSUFFICIENTMEMORY;
723 }
724 else
725 rglpwstrName[i] = NULL;
726 }
727 LeaveCriticalSection(&This->cs);
728 return hr;
729 }
730
731 /************************************************************************
732 * IPropertyStorage_fnWritePropertyNames (IPropertyStorage)
733 */
734 static HRESULT WINAPI IPropertyStorage_fnWritePropertyNames(
735 IPropertyStorage* iface,
736 ULONG cpropid,
737 const PROPID rgpropid[],
738 const LPOLESTR rglpwstrName[])
739 {
740 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
741 ULONG i;
742 HRESULT hr;
743
744 TRACE("(%p, %d, %p, %p)\n", iface, cpropid, rgpropid, rglpwstrName);
745
746 if (cpropid && (!rgpropid || !rglpwstrName))
747 return E_INVALIDARG;
748 if (!(This->grfMode & STGM_READWRITE))
749 return STG_E_ACCESSDENIED;
750 hr = S_OK;
751 EnterCriticalSection(&This->cs);
752 This->dirty = TRUE;
753 for (i = 0; SUCCEEDED(hr) && i < cpropid; i++)
754 {
755 if (rgpropid[i] != PID_ILLEGAL)
756 hr = PropertyStorage_StoreNameWithId(This, (LPCSTR)rglpwstrName[i],
757 CP_UNICODE, rgpropid[i]);
758 }
759 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
760 IPropertyStorage_Commit(iface, STGC_DEFAULT);
761 LeaveCriticalSection(&This->cs);
762 return hr;
763 }
764
765 /************************************************************************
766 * IPropertyStorage_fnDeletePropertyNames (IPropertyStorage)
767 */
768 static HRESULT WINAPI IPropertyStorage_fnDeletePropertyNames(
769 IPropertyStorage* iface,
770 ULONG cpropid,
771 const PROPID rgpropid[])
772 {
773 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
774 ULONG i;
775 HRESULT hr;
776
777 TRACE("(%p, %d, %p)\n", iface, cpropid, rgpropid);
778
779 if (cpropid && !rgpropid)
780 return E_INVALIDARG;
781 if (!(This->grfMode & STGM_READWRITE))
782 return STG_E_ACCESSDENIED;
783 hr = S_OK;
784 EnterCriticalSection(&This->cs);
785 This->dirty = TRUE;
786 for (i = 0; i < cpropid; i++)
787 {
788 LPWSTR name = NULL;
789
790 if (dictionary_find(This->propid_to_name, (void *)rgpropid[i],
791 (void **)&name))
792 {
793 dictionary_remove(This->propid_to_name, (void *)rgpropid[i]);
794 dictionary_remove(This->name_to_propid, name);
795 }
796 }
797 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
798 IPropertyStorage_Commit(iface, STGC_DEFAULT);
799 LeaveCriticalSection(&This->cs);
800 return hr;
801 }
802
803 /************************************************************************
804 * IPropertyStorage_fnCommit (IPropertyStorage)
805 */
806 static HRESULT WINAPI IPropertyStorage_fnCommit(
807 IPropertyStorage* iface,
808 DWORD grfCommitFlags)
809 {
810 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
811 HRESULT hr;
812
813 TRACE("(%p, 0x%08x)\n", iface, grfCommitFlags);
814
815 if (!(This->grfMode & STGM_READWRITE))
816 return STG_E_ACCESSDENIED;
817 EnterCriticalSection(&This->cs);
818 if (This->dirty)
819 hr = PropertyStorage_WriteToStream(This);
820 else
821 hr = S_OK;
822 LeaveCriticalSection(&This->cs);
823 return hr;
824 }
825
826 /************************************************************************
827 * IPropertyStorage_fnRevert (IPropertyStorage)
828 */
829 static HRESULT WINAPI IPropertyStorage_fnRevert(
830 IPropertyStorage* iface)
831 {
832 HRESULT hr;
833 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
834
835 TRACE("%p\n", iface);
836
837 EnterCriticalSection(&This->cs);
838 if (This->dirty)
839 {
840 PropertyStorage_DestroyDictionaries(This);
841 hr = PropertyStorage_CreateDictionaries(This);
842 if (SUCCEEDED(hr))
843 hr = PropertyStorage_ReadFromStream(This);
844 }
845 else
846 hr = S_OK;
847 LeaveCriticalSection(&This->cs);
848 return hr;
849 }
850
851 /************************************************************************
852 * IPropertyStorage_fnEnum (IPropertyStorage)
853 */
854 static HRESULT WINAPI IPropertyStorage_fnEnum(
855 IPropertyStorage* iface,
856 IEnumSTATPROPSTG** ppenum)
857 {
858 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
859 return create_EnumSTATPROPSTG(This, ppenum);
860 }
861
862 /************************************************************************
863 * IPropertyStorage_fnSetTimes (IPropertyStorage)
864 */
865 static HRESULT WINAPI IPropertyStorage_fnSetTimes(
866 IPropertyStorage* iface,
867 const FILETIME* pctime,
868 const FILETIME* patime,
869 const FILETIME* pmtime)
870 {
871 FIXME("\n");
872 return E_NOTIMPL;
873 }
874
875 /************************************************************************
876 * IPropertyStorage_fnSetClass (IPropertyStorage)
877 */
878 static HRESULT WINAPI IPropertyStorage_fnSetClass(
879 IPropertyStorage* iface,
880 REFCLSID clsid)
881 {
882 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
883
884 TRACE("%p, %s\n", iface, debugstr_guid(clsid));
885
886 if (!clsid)
887 return E_INVALIDARG;
888 if (!(This->grfMode & STGM_READWRITE))
889 return STG_E_ACCESSDENIED;
890 This->clsid = *clsid;
891 This->dirty = TRUE;
892 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
893 IPropertyStorage_Commit(iface, STGC_DEFAULT);
894 return S_OK;
895 }
896
897 /************************************************************************
898 * IPropertyStorage_fnStat (IPropertyStorage)
899 */
900 static HRESULT WINAPI IPropertyStorage_fnStat(
901 IPropertyStorage* iface,
902 STATPROPSETSTG* statpsstg)
903 {
904 PropertyStorage_impl *This = (PropertyStorage_impl *)iface;
905 STATSTG stat;
906 HRESULT hr;
907
908 TRACE("%p, %p\n", iface, statpsstg);
909
910 if (!statpsstg)
911 return E_INVALIDARG;
912
913 hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME);
914 if (SUCCEEDED(hr))
915 {
916 statpsstg->fmtid = This->fmtid;
917 statpsstg->clsid = This->clsid;
918 statpsstg->grfFlags = This->grfFlags;
919 statpsstg->mtime = stat.mtime;
920 statpsstg->ctime = stat.ctime;
921 statpsstg->atime = stat.atime;
922 statpsstg->dwOSVersion = This->originatorOS;
923 }
924 return hr;
925 }
926
927 static int PropertyStorage_PropNameCompare(const void *a, const void *b,
928 void *extra)
929 {
930 PropertyStorage_impl *This = extra;
931
932 if (This->codePage == CP_UNICODE)
933 {
934 TRACE("(%s, %s)\n", debugstr_w(a), debugstr_w(b));
935 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
936 return lstrcmpW(a, b);
937 else
938 return lstrcmpiW(a, b);
939 }
940 else
941 {
942 TRACE("(%s, %s)\n", debugstr_a(a), debugstr_a(b));
943 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
944 return lstrcmpA(a, b);
945 else
946 return lstrcmpiA(a, b);
947 }
948 }
949
950 static void PropertyStorage_PropNameDestroy(void *k, void *d, void *extra)
951 {
952 CoTaskMemFree(k);
953 }
954
955 static int PropertyStorage_PropCompare(const void *a, const void *b,
956 void *extra)
957 {
958 TRACE("(%d, %d)\n", (PROPID)a, (PROPID)b);
959 return (PROPID)a - (PROPID)b;
960 }
961
962 static void PropertyStorage_PropertyDestroy(void *k, void *d, void *extra)
963 {
964 PropVariantClear(d);
965 HeapFree(GetProcessHeap(), 0, d);
966 }
967
968 #ifdef WORDS_BIGENDIAN
969 /* Swaps each character in str to or from little endian; assumes the conversion
970 * is symmetric, that is, that lendian16toh is equivalent to htole16.
971 */
972 static void PropertyStorage_ByteSwapString(LPWSTR str, size_t len)
973 {
974 DWORD i;
975
976 /* Swap characters to host order.
977 * FIXME: alignment?
978 */
979 for (i = 0; i < len; i++)
980 str[i] = lendian16toh(str[i]);
981 }
982 #else
983 #define PropertyStorage_ByteSwapString(s, l)
984 #endif
985
986 /* Reads the dictionary from the memory buffer beginning at ptr. Interprets
987 * the entries according to the values of This->codePage and This->locale.
988 * FIXME: there isn't any checking whether the read property extends past the
989 * end of the buffer.
990 */
991 static HRESULT PropertyStorage_ReadDictionary(PropertyStorage_impl *This,
992 BYTE *ptr)
993 {
994 DWORD numEntries, i;
995 HRESULT hr = S_OK;
996
997 assert(This->name_to_propid);
998 assert(This->propid_to_name);
999
1000 StorageUtl_ReadDWord(ptr, 0, &numEntries);
1001 TRACE("Reading %d entries:\n", numEntries);
1002 ptr += sizeof(DWORD);
1003 for (i = 0; SUCCEEDED(hr) && i < numEntries; i++)
1004 {
1005 PROPID propid;
1006 DWORD cbEntry;
1007
1008 StorageUtl_ReadDWord(ptr, 0, &propid);
1009 ptr += sizeof(PROPID);
1010 StorageUtl_ReadDWord(ptr, 0, &cbEntry);
1011 ptr += sizeof(DWORD);
1012 TRACE("Reading entry with ID 0x%08x, %d bytes\n", propid, cbEntry);
1013 /* Make sure the source string is NULL-terminated */
1014 if (This->codePage != CP_UNICODE)
1015 ptr[cbEntry - 1] = '\0';
1016 else
1017 *((LPWSTR)ptr + cbEntry / sizeof(WCHAR)) = '\0';
1018 hr = PropertyStorage_StoreNameWithId(This, (char*)ptr, This->codePage, propid);
1019 if (This->codePage == CP_UNICODE)
1020 {
1021 /* Unicode entries are padded to DWORD boundaries */
1022 if (cbEntry % sizeof(DWORD))
1023 ptr += sizeof(DWORD) - (cbEntry % sizeof(DWORD));
1024 }
1025 ptr += sizeof(DWORD) + cbEntry;
1026 }
1027 return hr;
1028 }
1029
1030 /* FIXME: there isn't any checking whether the read property extends past the
1031 * end of the buffer.
1032 */
1033 static HRESULT PropertyStorage_ReadProperty(PropertyStorage_impl *This,
1034 PROPVARIANT *prop, const BYTE *data)
1035 {
1036 HRESULT hr = S_OK;
1037
1038 assert(prop);
1039 assert(data);
1040 StorageUtl_ReadDWord(data, 0, (DWORD *)&prop->vt);
1041 data += sizeof(DWORD);
1042 switch (prop->vt)
1043 {
1044 case VT_EMPTY:
1045 case VT_NULL:
1046 break;
1047 case VT_I1:
1048 prop->u.cVal = *(const char *)data;
1049 TRACE("Read char 0x%x ('%c')\n", prop->u.cVal, prop->u.cVal);
1050 break;
1051 case VT_UI1:
1052 prop->u.bVal = *data;
1053 TRACE("Read byte 0x%x\n", prop->u.bVal);
1054 break;
1055 case VT_I2:
1056 StorageUtl_ReadWord(data, 0, (WORD*)&prop->u.iVal);
1057 TRACE("Read short %d\n", prop->u.iVal);
1058 break;
1059 case VT_UI2:
1060 StorageUtl_ReadWord(data, 0, &prop->u.uiVal);
1061 TRACE("Read ushort %d\n", prop->u.uiVal);
1062 break;
1063 case VT_INT:
1064 case VT_I4:
1065 StorageUtl_ReadDWord(data, 0, (DWORD*)&prop->u.lVal);
1066 TRACE("Read long %d\n", prop->u.lVal);
1067 break;
1068 case VT_UINT:
1069 case VT_UI4:
1070 StorageUtl_ReadDWord(data, 0, &prop->u.ulVal);
1071 TRACE("Read ulong %d\n", prop->u.ulVal);
1072 break;
1073 case VT_LPSTR:
1074 {
1075 DWORD count;
1076
1077 StorageUtl_ReadDWord(data, 0, &count);
1078 if (This->codePage == CP_UNICODE && count / 2)
1079 {
1080 WARN("Unicode string has odd number of bytes\n");
1081 hr = STG_E_INVALIDHEADER;
1082 }
1083 else
1084 {
1085 prop->u.pszVal = CoTaskMemAlloc(count);
1086 if (prop->u.pszVal)
1087 {
1088 memcpy(prop->u.pszVal, data + sizeof(DWORD), count);
1089 /* This is stored in the code page specified in This->codePage.
1090 * Don't convert it, the caller will just store it as-is.
1091 */
1092 if (This->codePage == CP_UNICODE)
1093 {
1094 /* Make sure it's NULL-terminated */
1095 prop->u.pszVal[count / sizeof(WCHAR) - 1] = '\0';
1096 TRACE("Read string value %s\n",
1097 debugstr_w(prop->u.pwszVal));
1098 }
1099 else
1100 {
1101 /* Make sure it's NULL-terminated */
1102 prop->u.pszVal[count - 1] = '\0';
1103 TRACE("Read string value %s\n", debugstr_a(prop->u.pszVal));
1104 }
1105 }
1106 else
1107 hr = STG_E_INSUFFICIENTMEMORY;
1108 }
1109 break;
1110 }
1111 case VT_LPWSTR:
1112 {
1113 DWORD count;
1114
1115 StorageUtl_ReadDWord(data, 0, &count);
1116 prop->u.pwszVal = CoTaskMemAlloc(count * sizeof(WCHAR));
1117 if (prop->u.pwszVal)
1118 {
1119 memcpy(prop->u.pwszVal, data + sizeof(DWORD),
1120 count * sizeof(WCHAR));
1121 /* make sure string is NULL-terminated */
1122 prop->u.pwszVal[count - 1] = '\0';
1123 PropertyStorage_ByteSwapString(prop->u.pwszVal, count);
1124 TRACE("Read string value %s\n", debugstr_w(prop->u.pwszVal));
1125 }
1126 else
1127 hr = STG_E_INSUFFICIENTMEMORY;
1128 break;
1129 }
1130 case VT_FILETIME:
1131 StorageUtl_ReadULargeInteger(data, 0,
1132 (ULARGE_INTEGER *)&prop->u.filetime);
1133 break;
1134 case VT_CF:
1135 {
1136 DWORD len = 0, tag = 0;
1137
1138 StorageUtl_ReadDWord(data, 0, &len);
1139 StorageUtl_ReadDWord(data, 4, &tag);
1140 if (len > 8)
1141 {
1142 len -= 8;
1143 prop->u.pclipdata = CoTaskMemAlloc(sizeof (CLIPDATA));
1144 prop->u.pclipdata->cbSize = len;
1145 prop->u.pclipdata->ulClipFmt = tag;
1146 prop->u.pclipdata->pClipData = CoTaskMemAlloc(len);
1147 memcpy(prop->u.pclipdata->pClipData, data+8, len);
1148 }
1149 else
1150 hr = STG_E_INVALIDPARAMETER;
1151 }
1152 break;
1153 default:
1154 FIXME("unsupported type %d\n", prop->vt);
1155 hr = STG_E_INVALIDPARAMETER;
1156 }
1157 return hr;
1158 }
1159
1160 static HRESULT PropertyStorage_ReadHeaderFromStream(IStream *stm,
1161 PROPERTYSETHEADER *hdr)
1162 {
1163 BYTE buf[sizeof(PROPERTYSETHEADER)];
1164 ULONG count = 0;
1165 HRESULT hr;
1166
1167 assert(stm);
1168 assert(hdr);
1169 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1170 if (SUCCEEDED(hr))
1171 {
1172 if (count != sizeof(buf))
1173 {
1174 WARN("read only %d\n", count);
1175 hr = STG_E_INVALIDHEADER;
1176 }
1177 else
1178 {
1179 StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wByteOrder),
1180 &hdr->wByteOrder);
1181 StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wFormat),
1182 &hdr->wFormat);
1183 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, dwOSVer),
1184 &hdr->dwOSVer);
1185 StorageUtl_ReadGUID(buf, offsetof(PROPERTYSETHEADER, clsid),
1186 &hdr->clsid);
1187 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, reserved),
1188 &hdr->reserved);
1189 }
1190 }
1191 TRACE("returning 0x%08x\n", hr);
1192 return hr;
1193 }
1194
1195 static HRESULT PropertyStorage_ReadFmtIdOffsetFromStream(IStream *stm,
1196 FORMATIDOFFSET *fmt)
1197 {
1198 BYTE buf[sizeof(FORMATIDOFFSET)];
1199 ULONG count = 0;
1200 HRESULT hr;
1201
1202 assert(stm);
1203 assert(fmt);
1204 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1205 if (SUCCEEDED(hr))
1206 {
1207 if (count != sizeof(buf))
1208 {
1209 WARN("read only %d\n", count);
1210 hr = STG_E_INVALIDHEADER;
1211 }
1212 else
1213 {
1214 StorageUtl_ReadGUID(buf, offsetof(FORMATIDOFFSET, fmtid),
1215 &fmt->fmtid);
1216 StorageUtl_ReadDWord(buf, offsetof(FORMATIDOFFSET, dwOffset),
1217 &fmt->dwOffset);
1218 }
1219 }
1220 TRACE("returning 0x%08x\n", hr);
1221 return hr;
1222 }
1223
1224 static HRESULT PropertyStorage_ReadSectionHeaderFromStream(IStream *stm,
1225 PROPERTYSECTIONHEADER *hdr)
1226 {
1227 BYTE buf[sizeof(PROPERTYSECTIONHEADER)];
1228 ULONG count = 0;
1229 HRESULT hr;
1230
1231 assert(stm);
1232 assert(hdr);
1233 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1234 if (SUCCEEDED(hr))
1235 {
1236 if (count != sizeof(buf))
1237 {
1238 WARN("read only %d\n", count);
1239 hr = STG_E_INVALIDHEADER;
1240 }
1241 else
1242 {
1243 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER,
1244 cbSection), &hdr->cbSection);
1245 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER,
1246 cProperties), &hdr->cProperties);
1247 }
1248 }
1249 TRACE("returning 0x%08x\n", hr);
1250 return hr;
1251 }
1252
1253 static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *This)
1254 {
1255 PROPERTYSETHEADER hdr;
1256 FORMATIDOFFSET fmtOffset;
1257 PROPERTYSECTIONHEADER sectionHdr;
1258 LARGE_INTEGER seek;
1259 ULONG i;
1260 STATSTG stat;
1261 HRESULT hr;
1262 BYTE *buf = NULL;
1263 ULONG count = 0;
1264 DWORD dictOffset = 0;
1265
1266 This->dirty = FALSE;
1267 This->highestProp = 0;
1268 hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME);
1269 if (FAILED(hr))
1270 goto end;
1271 if (stat.cbSize.u.HighPart)
1272 {
1273 WARN("stream too big\n");
1274 /* maximum size varies, but it can't be this big */
1275 hr = STG_E_INVALIDHEADER;
1276 goto end;
1277 }
1278 if (stat.cbSize.u.LowPart == 0)
1279 {
1280 /* empty stream is okay */
1281 hr = S_OK;
1282 goto end;
1283 }
1284 else if (stat.cbSize.u.LowPart < sizeof(PROPERTYSETHEADER) +
1285 sizeof(FORMATIDOFFSET))
1286 {
1287 WARN("stream too small\n");
1288 hr = STG_E_INVALIDHEADER;
1289 goto end;
1290 }
1291 seek.QuadPart = 0;
1292 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1293 if (FAILED(hr))
1294 goto end;
1295 hr = PropertyStorage_ReadHeaderFromStream(This->stm, &hdr);
1296 /* I've only seen reserved == 1, but the article says I shouldn't disallow
1297 * higher values.
1298 */
1299 if (hdr.wByteOrder != PROPSETHDR_BYTEORDER_MAGIC || hdr.reserved < 1)
1300 {
1301 WARN("bad magic in prop set header\n");
1302 hr = STG_E_INVALIDHEADER;
1303 goto end;
1304 }
1305 if (hdr.wFormat != 0 && hdr.wFormat != 1)
1306 {
1307 WARN("bad format version %d\n", hdr.wFormat);
1308 hr = STG_E_INVALIDHEADER;
1309 goto end;
1310 }
1311 This->format = hdr.wFormat;
1312 This->clsid = hdr.clsid;
1313 This->originatorOS = hdr.dwOSVer;
1314 if (PROPSETHDR_OSVER_KIND(hdr.dwOSVer) == PROPSETHDR_OSVER_KIND_MAC)
1315 WARN("File comes from a Mac, strings will probably be screwed up\n");
1316 hr = PropertyStorage_ReadFmtIdOffsetFromStream(This->stm, &fmtOffset);
1317 if (FAILED(hr))
1318 goto end;
1319 if (fmtOffset.dwOffset > stat.cbSize.u.LowPart)
1320 {
1321 WARN("invalid offset %d (stream length is %d)\n", fmtOffset.dwOffset,
1322 stat.cbSize.u.LowPart);
1323 hr = STG_E_INVALIDHEADER;
1324 goto end;
1325 }
1326 /* wackiness alert: if the format ID is FMTID_DocSummaryInformation, there
1327 * follow not one, but two sections. The first is the standard properties
1328 * for the document summary information, and the second is user-defined
1329 * properties. This is the only case in which multiple sections are
1330 * allowed.
1331 * Reading the second stream isn't implemented yet.
1332 */
1333 hr = PropertyStorage_ReadSectionHeaderFromStream(This->stm, &sectionHdr);
1334 if (FAILED(hr))
1335 goto end;
1336 /* The section size includes the section header, so check it */
1337 if (sectionHdr.cbSection < sizeof(PROPERTYSECTIONHEADER))
1338 {
1339 WARN("section header too small, got %d\n", sectionHdr.cbSection);
1340 hr = STG_E_INVALIDHEADER;
1341 goto end;
1342 }
1343 buf = HeapAlloc(GetProcessHeap(), 0, sectionHdr.cbSection -
1344 sizeof(PROPERTYSECTIONHEADER));
1345 if (!buf)
1346 {
1347 hr = STG_E_INSUFFICIENTMEMORY;
1348 goto end;
1349 }
1350 hr = IStream_Read(This->stm, buf, sectionHdr.cbSection -
1351 sizeof(PROPERTYSECTIONHEADER), &count);
1352 if (FAILED(hr))
1353 goto end;
1354 TRACE("Reading %d properties:\n", sectionHdr.cProperties);
1355 for (i = 0; SUCCEEDED(hr) && i < sectionHdr.cProperties; i++)
1356 {
1357 PROPERTYIDOFFSET *idOffset = (PROPERTYIDOFFSET *)(buf +
1358 i * sizeof(PROPERTYIDOFFSET));
1359
1360 if (idOffset->dwOffset < sizeof(PROPERTYSECTIONHEADER) ||
1361 idOffset->dwOffset >= sectionHdr.cbSection - sizeof(DWORD))
1362 hr = STG_E_INVALIDPOINTER;
1363 else
1364 {
1365 if (idOffset->propid >= PID_FIRST_USABLE &&
1366 idOffset->propid < PID_MIN_READONLY && idOffset->propid >
1367 This->highestProp)
1368 This->highestProp = idOffset->propid;
1369 if (idOffset->propid == PID_DICTIONARY)
1370 {
1371 /* Don't read the dictionary yet, its entries depend on the
1372 * code page. Just store the offset so we know to read it
1373 * later.
1374 */
1375 dictOffset = idOffset->dwOffset;
1376 TRACE("Dictionary offset is %d\n", dictOffset);
1377 }
1378 else
1379 {
1380 PROPVARIANT prop;
1381
1382 PropVariantInit(&prop);
1383 if (SUCCEEDED(PropertyStorage_ReadProperty(This, &prop,
1384 buf + idOffset->dwOffset - sizeof(PROPERTYSECTIONHEADER))))
1385 {
1386 TRACE("Read property with ID 0x%08x, type %d\n",
1387 idOffset->propid, prop.vt);
1388 switch(idOffset->propid)
1389 {
1390 case PID_CODEPAGE:
1391 if (prop.vt == VT_I2)
1392 This->codePage = (UINT)prop.u.iVal;
1393 break;
1394 case PID_LOCALE:
1395 if (prop.vt == VT_I4)
1396 This->locale = (LCID)prop.u.lVal;
1397 break;
1398 case PID_BEHAVIOR:
1399 if (prop.vt == VT_I4 && prop.u.lVal)
1400 This->grfFlags |= PROPSETFLAG_CASE_SENSITIVE;
1401 /* The format should already be 1, but just in case */
1402 This->format = 1;
1403 break;
1404 default:
1405 hr = PropertyStorage_StorePropWithId(This,
1406 idOffset->propid, &prop, This->codePage);
1407 }
1408 }
1409 }
1410 }
1411 }
1412 if (!This->codePage)
1413 {
1414 /* default to Unicode unless told not to, as specified on msdn */
1415 if (This->grfFlags & PROPSETFLAG_ANSI)
1416 This->codePage = GetACP();
1417 else
1418 This->codePage = CP_UNICODE;
1419 }
1420 if (!This->locale)
1421 This->locale = LOCALE_SYSTEM_DEFAULT;
1422 TRACE("Code page is %d, locale is %d\n", This->codePage, This->locale);
1423 if (dictOffset)
1424 hr = PropertyStorage_ReadDictionary(This,
1425 buf + dictOffset - sizeof(PROPERTYSECTIONHEADER));
1426
1427 end:
1428 HeapFree(GetProcessHeap(), 0, buf);
1429 if (FAILED(hr))
1430 {
1431 dictionary_destroy(This->name_to_propid);
1432 This->name_to_propid = NULL;
1433 dictionary_destroy(This->propid_to_name);
1434 This->propid_to_name = NULL;
1435 dictionary_destroy(This->propid_to_prop);
1436 This->propid_to_prop = NULL;
1437 }
1438 return hr;
1439 }
1440
1441 static void PropertyStorage_MakeHeader(PropertyStorage_impl *This,
1442 PROPERTYSETHEADER *hdr)
1443 {
1444 assert(hdr);
1445 StorageUtl_WriteWord((BYTE *)&hdr->wByteOrder, 0,
1446 PROPSETHDR_BYTEORDER_MAGIC);
1447 StorageUtl_WriteWord((BYTE *)&hdr->wFormat, 0, This->format);
1448 StorageUtl_WriteDWord((BYTE *)&hdr->dwOSVer, 0, This->originatorOS);
1449 StorageUtl_WriteGUID((BYTE *)&hdr->clsid, 0, &This->clsid);
1450 StorageUtl_WriteDWord((BYTE *)&hdr->reserved, 0, 1);
1451 }
1452
1453 static void PropertyStorage_MakeFmtIdOffset(PropertyStorage_impl *This,
1454 FORMATIDOFFSET *fmtOffset)
1455 {
1456 assert(fmtOffset);
1457 StorageUtl_WriteGUID((BYTE *)fmtOffset, 0, &This->fmtid);
1458 StorageUtl_WriteDWord((BYTE *)fmtOffset, offsetof(FORMATIDOFFSET, dwOffset),
1459 sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET));
1460 }
1461
1462 static void PropertyStorage_MakeSectionHdr(DWORD cbSection, DWORD numProps,
1463 PROPERTYSECTIONHEADER *hdr)
1464 {
1465 assert(hdr);
1466 StorageUtl_WriteDWord((BYTE *)hdr, 0, cbSection);
1467 StorageUtl_WriteDWord((BYTE *)hdr,
1468 offsetof(PROPERTYSECTIONHEADER, cProperties), numProps);
1469 }
1470
1471 static void PropertyStorage_MakePropertyIdOffset(DWORD propid, DWORD dwOffset,
1472 PROPERTYIDOFFSET *propIdOffset)
1473 {
1474 assert(propIdOffset);
1475 StorageUtl_WriteDWord((BYTE *)propIdOffset, 0, propid);
1476 StorageUtl_WriteDWord((BYTE *)propIdOffset,
1477 offsetof(PROPERTYIDOFFSET, dwOffset), dwOffset);
1478 }
1479
1480 static inline HRESULT PropertStorage_WriteWStringToStream(IStream *stm,
1481 LPCWSTR str, DWORD len, DWORD *written)
1482 {
1483 #ifdef WORDS_BIGENDIAN
1484 WCHAR *leStr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1485 HRESULT hr;
1486
1487 if (!leStr)
1488 return E_OUTOFMEMORY;
1489 memcpy(leStr, str, len * sizeof(WCHAR));
1490 PropertyStorage_ByteSwapString(leStr, len);
1491 hr = IStream_Write(stm, leStr, len, written);
1492 HeapFree(GetProcessHeap(), 0, leStr);
1493 return hr;
1494 #else
1495 return IStream_Write(stm, str, len, written);
1496 #endif
1497 }
1498
1499 struct DictionaryClosure
1500 {
1501 HRESULT hr;
1502 DWORD bytesWritten;
1503 };
1504
1505 static BOOL PropertyStorage_DictionaryWriter(const void *key,
1506 const void *value, void *extra, void *closure)
1507 {
1508 PropertyStorage_impl *This = extra;
1509 struct DictionaryClosure *c = closure;
1510 DWORD propid;
1511 ULONG count;
1512
1513 assert(key);
1514 assert(closure);
1515 StorageUtl_WriteDWord((LPBYTE)&propid, 0, (DWORD)value);
1516 c->hr = IStream_Write(This->stm, &propid, sizeof(propid), &count);
1517 if (FAILED(c->hr))
1518 goto end;
1519 c->bytesWritten += sizeof(DWORD);
1520 if (This->codePage == CP_UNICODE)
1521 {
1522 DWORD keyLen, pad = 0;
1523
1524 StorageUtl_WriteDWord((LPBYTE)&keyLen, 0,
1525 (lstrlenW((LPCWSTR)key) + 1) * sizeof(WCHAR));
1526 c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count);
1527 if (FAILED(c->hr))
1528 goto end;
1529 c->bytesWritten += sizeof(DWORD);
1530 c->hr = PropertStorage_WriteWStringToStream(This->stm, key, keyLen,
1531 &count);
1532 if (FAILED(c->hr))
1533 goto end;
1534 c->bytesWritten += keyLen * sizeof(WCHAR);
1535 if (keyLen % sizeof(DWORD))
1536 {
1537 c->hr = IStream_Write(This->stm, &pad,
1538 sizeof(DWORD) - keyLen % sizeof(DWORD), &count);
1539 if (FAILED(c->hr))
1540 goto end;
1541 c->bytesWritten += sizeof(DWORD) - keyLen % sizeof(DWORD);
1542 }
1543 }
1544 else
1545 {
1546 DWORD keyLen;
1547
1548 StorageUtl_WriteDWord((LPBYTE)&keyLen, 0, strlen((LPCSTR)key) + 1);
1549 c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count);
1550 if (FAILED(c->hr))
1551 goto end;
1552 c->bytesWritten += sizeof(DWORD);
1553 c->hr = IStream_Write(This->stm, key, keyLen, &count);
1554 if (FAILED(c->hr))
1555 goto end;
1556 c->bytesWritten += keyLen;
1557 }
1558 end:
1559 return SUCCEEDED(c->hr);
1560 }
1561
1562 #define SECTIONHEADER_OFFSET sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET)
1563
1564 /* Writes the dictionary to the stream. Assumes without checking that the
1565 * dictionary isn't empty.
1566 */
1567 static HRESULT PropertyStorage_WriteDictionaryToStream(
1568 PropertyStorage_impl *This, DWORD *sectionOffset)
1569 {
1570 HRESULT hr;
1571 LARGE_INTEGER seek;
1572 PROPERTYIDOFFSET propIdOffset;
1573 ULONG count;
1574 DWORD dwTemp;
1575 struct DictionaryClosure closure;
1576
1577 assert(sectionOffset);
1578
1579 /* The dictionary's always the first property written, so seek to its
1580 * spot.
1581 */
1582 seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER);
1583 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1584 if (FAILED(hr))
1585 goto end;
1586 PropertyStorage_MakePropertyIdOffset(PID_DICTIONARY, *sectionOffset,
1587 &propIdOffset);
1588 hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count);
1589 if (FAILED(hr))
1590 goto end;
1591
1592 seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset;
1593 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1594 if (FAILED(hr))
1595 goto end;
1596 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0,
1597 dictionary_num_entries(This->name_to_propid));
1598 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1599 if (FAILED(hr))
1600 goto end;
1601 *sectionOffset += sizeof(dwTemp);
1602
1603 closure.hr = S_OK;
1604 closure.bytesWritten = 0;
1605 dictionary_enumerate(This->name_to_propid, PropertyStorage_DictionaryWriter,
1606 &closure);
1607 hr = closure.hr;
1608 if (FAILED(hr))
1609 goto end;
1610 *sectionOffset += closure.bytesWritten;
1611 if (closure.bytesWritten % sizeof(DWORD))
1612 {
1613 DWORD padding = sizeof(DWORD) - closure.bytesWritten % sizeof(DWORD);
1614 TRACE("adding %d bytes of padding\n", padding);
1615 *sectionOffset += padding;
1616 }
1617
1618 end:
1619 return hr;
1620 }
1621
1622 static HRESULT PropertyStorage_WritePropertyToStream(PropertyStorage_impl *This,
1623 DWORD propNum, DWORD propid, const PROPVARIANT *var, DWORD *sectionOffset)
1624 {
1625 HRESULT hr;
1626 LARGE_INTEGER seek;
1627 PROPERTYIDOFFSET propIdOffset;
1628 ULONG count;
1629 DWORD dwType, bytesWritten;
1630
1631 assert(var);
1632 assert(sectionOffset);
1633
1634 TRACE("%p, %d, 0x%08x, (%d), (%d)\n", This, propNum, propid, var->vt,
1635 *sectionOffset);
1636
1637 seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER) +
1638 propNum * sizeof(PROPERTYIDOFFSET);
1639 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1640 if (FAILED(hr))
1641 goto end;
1642 PropertyStorage_MakePropertyIdOffset(propid, *sectionOffset, &propIdOffset);
1643 hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count);
1644 if (FAILED(hr))
1645 goto end;
1646
1647 seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset;
1648 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1649 if (FAILED(hr))
1650 goto end;
1651 StorageUtl_WriteDWord((LPBYTE)&dwType, 0, var->vt);
1652 hr = IStream_Write(This->stm, &dwType, sizeof(dwType), &count);
1653 if (FAILED(hr))
1654 goto end;
1655 *sectionOffset += sizeof(dwType);
1656
1657 switch (var->vt)
1658 {
1659 case VT_EMPTY:
1660 case VT_NULL:
1661 bytesWritten = 0;
1662 break;
1663 case VT_I1:
1664 case VT_UI1:
1665 hr = IStream_Write(This->stm, &var->u.cVal, sizeof(var->u.cVal),
1666 &count);
1667 bytesWritten = count;
1668 break;
1669 case VT_I2:
1670 case VT_UI2:
1671 {
1672 WORD wTemp;
1673
1674 StorageUtl_WriteWord((LPBYTE)&wTemp, 0, var->u.iVal);
1675 hr = IStream_Write(This->stm, &wTemp, sizeof(wTemp), &count);
1676 bytesWritten = count;
1677 break;
1678 }
1679 case VT_I4:
1680 case VT_UI4:
1681 {
1682 DWORD dwTemp;
1683
1684 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, var->u.lVal);
1685 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1686 bytesWritten = count;
1687 break;
1688 }
1689 case VT_LPSTR:
1690 {
1691 DWORD len, dwTemp;
1692
1693 if (This->codePage == CP_UNICODE)
1694 len = (lstrlenW(var->u.pwszVal) + 1) * sizeof(WCHAR);
1695 else
1696 len = lstrlenA(var->u.pszVal) + 1;
1697 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, len);
1698 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1699 if (FAILED(hr))
1700 goto end;
1701 hr = IStream_Write(This->stm, var->u.pszVal, len, &count);
1702 bytesWritten = count + sizeof(DWORD);
1703 break;
1704 }
1705 case VT_LPWSTR:
1706 {
1707 DWORD len = lstrlenW(var->u.pwszVal) + 1, dwTemp;
1708
1709 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, len);
1710 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1711 if (FAILED(hr))
1712 goto end;
1713 hr = IStream_Write(This->stm, var->u.pwszVal, len * sizeof(WCHAR),
1714 &count);
1715 bytesWritten = count + sizeof(DWORD);
1716 break;
1717 }
1718 case VT_FILETIME:
1719 {
1720 FILETIME temp;
1721
1722 StorageUtl_WriteULargeInteger((BYTE *)&temp, 0,
1723 (const ULARGE_INTEGER *)&var->u.filetime);
1724 hr = IStream_Write(This->stm, &temp, sizeof(FILETIME), &count);
1725 bytesWritten = count;
1726 break;
1727 }
1728 case VT_CF:
1729 {
1730 DWORD cf_hdr[2], len;
1731
1732 len = var->u.pclipdata->cbSize;
1733 StorageUtl_WriteDWord((LPBYTE)&cf_hdr[0], 0, len + 8);
1734 StorageUtl_WriteDWord((LPBYTE)&cf_hdr[1], 0, var->u.pclipdata->ulClipFmt);
1735 hr = IStream_Write(This->stm, cf_hdr, sizeof(cf_hdr), &count);
1736 if (FAILED(hr))
1737 goto end;
1738 hr = IStream_Write(This->stm, &var->u.pclipdata->pClipData, len, &count);
1739 if (FAILED(hr))
1740 goto end;
1741 bytesWritten = count + sizeof cf_hdr;
1742 break;
1743 }
1744 default:
1745 FIXME("unsupported type: %d\n", var->vt);
1746 return STG_E_INVALIDPARAMETER;
1747 }
1748
1749 if (SUCCEEDED(hr))
1750 {
1751 *sectionOffset += bytesWritten;
1752 if (bytesWritten % sizeof(DWORD))
1753 {
1754 DWORD padding = sizeof(DWORD) - bytesWritten % sizeof(DWORD);
1755 TRACE("adding %d bytes of padding\n", padding);
1756 *sectionOffset += padding;
1757 }
1758 }
1759
1760 end:
1761 return hr;
1762 }
1763
1764 struct PropertyClosure
1765 {
1766 HRESULT hr;
1767 DWORD propNum;
1768 DWORD *sectionOffset;
1769 };
1770
1771 static BOOL PropertyStorage_PropertiesWriter(const void *key, const void *value,
1772 void *extra, void *closure)
1773 {
1774 PropertyStorage_impl *This = extra;
1775 struct PropertyClosure *c = closure;
1776
1777 assert(key);
1778 assert(value);
1779 assert(extra);
1780 assert(closure);
1781 c->hr = PropertyStorage_WritePropertyToStream(This, c->propNum++,
1782 (DWORD)key, value, c->sectionOffset);
1783 return SUCCEEDED(c->hr);
1784 }
1785
1786 static HRESULT PropertyStorage_WritePropertiesToStream(
1787 PropertyStorage_impl *This, DWORD startingPropNum, DWORD *sectionOffset)
1788 {
1789 struct PropertyClosure closure;
1790
1791 assert(sectionOffset);
1792 closure.hr = S_OK;
1793 closure.propNum = startingPropNum;
1794 closure.sectionOffset = sectionOffset;
1795 dictionary_enumerate(This->propid_to_prop, PropertyStorage_PropertiesWriter,
1796 &closure);
1797 return closure.hr;
1798 }
1799
1800 static HRESULT PropertyStorage_WriteHeadersToStream(PropertyStorage_impl *This)
1801 {
1802 HRESULT hr;
1803 ULONG count = 0;
1804 LARGE_INTEGER seek = { {0} };
1805 PROPERTYSETHEADER hdr;
1806 FORMATIDOFFSET fmtOffset;
1807
1808 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1809 if (FAILED(hr))
1810 goto end;
1811 PropertyStorage_MakeHeader(This, &hdr);
1812 hr = IStream_Write(This->stm, &hdr, sizeof(hdr), &count);
1813 if (FAILED(hr))
1814 goto end;
1815 if (count != sizeof(hdr))
1816 {
1817 hr = STG_E_WRITEFAULT;
1818 goto end;
1819 }
1820
1821 PropertyStorage_MakeFmtIdOffset(This, &fmtOffset);
1822 hr = IStream_Write(This->stm, &fmtOffset, sizeof(fmtOffset), &count);
1823 if (FAILED(hr))
1824 goto end;
1825 if (count != sizeof(fmtOffset))
1826 {
1827 hr = STG_E_WRITEFAULT;
1828 goto end;
1829 }
1830 hr = S_OK;
1831
1832 end:
1833 return hr;
1834 }
1835
1836 static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *This)
1837 {
1838 PROPERTYSECTIONHEADER sectionHdr;
1839 HRESULT hr;
1840 ULONG count;
1841 LARGE_INTEGER seek;
1842 DWORD numProps, prop, sectionOffset, dwTemp;
1843 PROPVARIANT var;
1844
1845 PropertyStorage_WriteHeadersToStream(This);
1846
1847 /* Count properties. Always at least one property, the code page */
1848 numProps = 1;
1849 if (dictionary_num_entries(This->name_to_propid))
1850 numProps++;
1851 if (This->locale != LOCALE_SYSTEM_DEFAULT)
1852 numProps++;
1853 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
1854 numProps++;
1855 numProps += dictionary_num_entries(This->propid_to_prop);
1856
1857 /* Write section header with 0 bytes right now, I'll adjust it after
1858 * writing properties.
1859 */
1860 PropertyStorage_MakeSectionHdr(0, numProps, &sectionHdr);
1861 seek.QuadPart = SECTIONHEADER_OFFSET;
1862 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1863 if (FAILED(hr))
1864 goto end;
1865 hr = IStream_Write(This->stm, &sectionHdr, sizeof(sectionHdr), &count);
1866 if (FAILED(hr))
1867 goto end;
1868
1869 prop = 0;
1870 sectionOffset = sizeof(PROPERTYSECTIONHEADER) +
1871 numProps * sizeof(PROPERTYIDOFFSET);
1872
1873 if (dictionary_num_entries(This->name_to_propid))
1874 {
1875 prop++;
1876 hr = PropertyStorage_WriteDictionaryToStream(This, &sectionOffset);
1877 if (FAILED(hr))
1878 goto end;
1879 }
1880
1881 PropVariantInit(&var);
1882
1883 var.vt = VT_I2;
1884 var.u.iVal = This->codePage;
1885 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_CODEPAGE,
1886 &var, &sectionOffset);
1887 if (FAILED(hr))
1888 goto end;
1889
1890 if (This->locale != LOCALE_SYSTEM_DEFAULT)
1891 {
1892 var.vt = VT_I4;
1893 var.u.lVal = This->locale;
1894 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_LOCALE,
1895 &var, &sectionOffset);
1896 if (FAILED(hr))
1897 goto end;
1898 }
1899
1900 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
1901 {
1902 var.vt = VT_I4;
1903 var.u.lVal = 1;
1904 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_BEHAVIOR,
1905 &var, &sectionOffset);
1906 if (FAILED(hr))
1907 goto end;
1908 }
1909
1910 hr = PropertyStorage_WritePropertiesToStream(This, prop, &sectionOffset);
1911 if (FAILED(hr))
1912 goto end;
1913
1914 /* Now write the byte count of the section */
1915 seek.QuadPart = SECTIONHEADER_OFFSET;
1916 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1917 if (FAILED(hr))
1918 goto end;
1919 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, sectionOffset);
1920 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1921
1922 end:
1923 return hr;
1924 }
1925
1926 /***********************************************************************
1927 * PropertyStorage_Construct
1928 */
1929 static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *This)
1930 {
1931 dictionary_destroy(This->name_to_propid);
1932 This->name_to_propid = NULL;
1933 dictionary_destroy(This->propid_to_name);
1934 This->propid_to_name = NULL;
1935 dictionary_destroy(This->propid_to_prop);
1936 This->propid_to_prop = NULL;
1937 }
1938
1939 static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *This)
1940 {
1941 HRESULT hr = S_OK;
1942
1943 This->name_to_propid = dictionary_create(
1944 PropertyStorage_PropNameCompare, PropertyStorage_PropNameDestroy,
1945 This);
1946 if (!This->name_to_propid)
1947 {
1948 hr = STG_E_INSUFFICIENTMEMORY;
1949 goto end;
1950 }
1951 This->propid_to_name = dictionary_create(PropertyStorage_PropCompare,
1952 NULL, This);
1953 if (!This->propid_to_name)
1954 {
1955 hr = STG_E_INSUFFICIENTMEMORY;
1956 goto end;
1957 }
1958 This->propid_to_prop = dictionary_create(PropertyStorage_PropCompare,
1959 PropertyStorage_PropertyDestroy, This);
1960 if (!This->propid_to_prop)
1961 {
1962 hr = STG_E_INSUFFICIENTMEMORY;
1963 goto end;
1964 }
1965 end:
1966 if (FAILED(hr))
1967 PropertyStorage_DestroyDictionaries(This);
1968 return hr;
1969 }
1970
1971 static HRESULT PropertyStorage_BaseConstruct(IStream *stm,
1972 REFFMTID rfmtid, DWORD grfMode, PropertyStorage_impl **pps)
1973 {
1974 HRESULT hr = S_OK;
1975
1976 assert(pps);
1977 assert(rfmtid);
1978 *pps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof **pps);
1979 if (!*pps)
1980 return E_OUTOFMEMORY;
1981
1982 (*pps)->vtbl = &IPropertyStorage_Vtbl;
1983 (*pps)->ref = 1;
1984 InitializeCriticalSection(&(*pps)->cs);
1985 (*pps)->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PropertyStorage_impl.cs");
1986 (*pps)->stm = stm;
1987 (*pps)->fmtid = *rfmtid;
1988 (*pps)->grfMode = grfMode;
1989
1990 hr = PropertyStorage_CreateDictionaries(*pps);
1991 if (FAILED(hr))
1992 {
1993 IStream_Release(stm);
1994 (*pps)->cs.DebugInfo->Spare[0] = 0;
1995 DeleteCriticalSection(&(*pps)->cs);
1996 HeapFree(GetProcessHeap(), 0, *pps);
1997 *pps = NULL;
1998 }
1999
2000 return hr;
2001 }
2002
2003 static HRESULT PropertyStorage_ConstructFromStream(IStream *stm,
2004 REFFMTID rfmtid, DWORD grfMode, IPropertyStorage** pps)
2005 {
2006 PropertyStorage_impl *ps;
2007 HRESULT hr;
2008
2009 assert(pps);
2010 hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps);
2011 if (SUCCEEDED(hr))
2012 {
2013 hr = PropertyStorage_ReadFromStream(ps);
2014 if (SUCCEEDED(hr))
2015 {
2016 *pps = (IPropertyStorage *)ps;
2017 TRACE("PropertyStorage %p constructed\n", ps);
2018 hr = S_OK;
2019 }
2020 else
2021 {
2022 PropertyStorage_DestroyDictionaries(ps);
2023 HeapFree(GetProcessHeap(), 0, ps);
2024 }
2025 }
2026 return hr;
2027 }
2028
2029 static HRESULT PropertyStorage_ConstructEmpty(IStream *stm,
2030 REFFMTID rfmtid, DWORD grfFlags, DWORD grfMode, IPropertyStorage** pps)
2031 {
2032 PropertyStorage_impl *ps;
2033 HRESULT hr;
2034
2035 assert(pps);
2036 hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps);
2037 if (SUCCEEDED(hr))
2038 {
2039 ps->format = 0;
2040 ps->grfFlags = grfFlags;
2041 if (ps->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
2042 ps->format = 1;
2043 /* default to Unicode unless told not to, as specified on msdn */
2044 if (ps->grfFlags & PROPSETFLAG_ANSI)
2045 ps->codePage = GetACP();
2046 else
2047 ps->codePage = CP_UNICODE;
2048 ps->locale = LOCALE_SYSTEM_DEFAULT;
2049 TRACE("Code page is %d, locale is %d\n", ps->codePage, ps->locale);
2050 *pps = (IPropertyStorage *)ps;
2051 TRACE("PropertyStorage %p constructed\n", ps);
2052 hr = S_OK;
2053 }
2054 return hr;
2055 }
2056
2057
2058 /***********************************************************************
2059 * Implementation of IPropertySetStorage
2060 */
2061
2062 /************************************************************************
2063 * IPropertySetStorage_fnQueryInterface (IUnknown)
2064 *
2065 * This method forwards to the common QueryInterface implementation
2066 */
2067 static HRESULT WINAPI IPropertySetStorage_fnQueryInterface(
2068 IPropertySetStorage *ppstg,
2069 REFIID riid,
2070 void** ppvObject)
2071 {
2072 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2073 return IStorage_QueryInterface( (IStorage*)This, riid, ppvObject );
2074 }
2075
2076 /************************************************************************
2077 * IPropertySetStorage_fnAddRef (IUnknown)
2078 *
2079 * This method forwards to the common AddRef implementation
2080 */
2081 static ULONG WINAPI IPropertySetStorage_fnAddRef(
2082 IPropertySetStorage *ppstg)
2083 {
2084 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2085 return IStorage_AddRef( (IStorage*)This );
2086 }
2087
2088 /************************************************************************
2089 * IPropertySetStorage_fnRelease (IUnknown)
2090 *
2091 * This method forwards to the common Release implementation
2092 */
2093 static ULONG WINAPI IPropertySetStorage_fnRelease(
2094 IPropertySetStorage *ppstg)
2095 {
2096 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2097 return IStorage_Release( (IStorage*)This );
2098 }
2099
2100 /************************************************************************
2101 * IPropertySetStorage_fnCreate (IPropertySetStorage)
2102 */
2103 static HRESULT WINAPI IPropertySetStorage_fnCreate(
2104 IPropertySetStorage *ppstg,
2105 REFFMTID rfmtid,
2106 const CLSID* pclsid,
2107 DWORD grfFlags,
2108 DWORD grfMode,
2109 IPropertyStorage** ppprstg)
2110 {
2111 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2112 WCHAR name[CCH_MAX_PROPSTG_NAME];
2113 IStream *stm = NULL;
2114 HRESULT r;
2115
2116 TRACE("%p %s %08x %08x %p\n", This, debugstr_guid(rfmtid), grfFlags,
2117 grfMode, ppprstg);
2118
2119 /* be picky */
2120 if (grfMode != (STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE))
2121 {
2122 r = STG_E_INVALIDFLAG;
2123 goto end;
2124 }
2125
2126 if (!rfmtid)
2127 {
2128 r = E_INVALIDARG;
2129 goto end;
2130 }
2131
2132 /* FIXME: if (grfFlags & PROPSETFLAG_NONSIMPLE), we need to create a
2133 * storage, not a stream. For now, disallow it.
2134 */
2135 if (grfFlags & PROPSETFLAG_NONSIMPLE)
2136 {
2137 FIXME("PROPSETFLAG_NONSIMPLE not supported\n");
2138 r = STG_E_INVALIDFLAG;
2139 goto end;
2140 }
2141
2142 r = FmtIdToPropStgName(rfmtid, name);
2143 if (FAILED(r))
2144 goto end;
2145
2146 r = IStorage_CreateStream( (IStorage*)This, name, grfMode, 0, 0, &stm );
2147 if (FAILED(r))
2148 goto end;
2149
2150 r = PropertyStorage_ConstructEmpty(stm, rfmtid, grfFlags, grfMode, ppprstg);
2151
2152 end:
2153 TRACE("returning 0x%08x\n", r);
2154 return r;
2155 }
2156
2157 /************************************************************************
2158 * IPropertySetStorage_fnOpen (IPropertySetStorage)
2159 */
2160 static HRESULT WINAPI IPropertySetStorage_fnOpen(
2161 IPropertySetStorage *ppstg,
2162 REFFMTID rfmtid,
2163 DWORD grfMode,
2164 IPropertyStorage** ppprstg)
2165 {
2166 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2167 IStream *stm = NULL;
2168 WCHAR name[CCH_MAX_PROPSTG_NAME];
2169 HRESULT r;
2170
2171 TRACE("%p %s %08x %p\n", This, debugstr_guid(rfmtid), grfMode, ppprstg);
2172
2173 /* be picky */
2174 if (grfMode != (STGM_READWRITE|STGM_SHARE_EXCLUSIVE) &&
2175 grfMode != (STGM_READ|STGM_SHARE_EXCLUSIVE))
2176 {
2177 r = STG_E_INVALIDFLAG;
2178 goto end;
2179 }
2180
2181 if (!rfmtid)
2182 {
2183 r = E_INVALIDARG;
2184 goto end;
2185 }
2186
2187 r = FmtIdToPropStgName(rfmtid, name);
2188 if (FAILED(r))
2189 goto end;
2190
2191 r = IStorage_OpenStream((IStorage*) This, name, 0, grfMode, 0, &stm );
2192 if (FAILED(r))
2193 goto end;
2194
2195 r = PropertyStorage_ConstructFromStream(stm, rfmtid, grfMode, ppprstg);
2196
2197 end:
2198 TRACE("returning 0x%08x\n", r);
2199 return r;
2200 }
2201
2202 /************************************************************************
2203 * IPropertySetStorage_fnDelete (IPropertySetStorage)
2204 */
2205 static HRESULT WINAPI IPropertySetStorage_fnDelete(
2206 IPropertySetStorage *ppstg,
2207 REFFMTID rfmtid)
2208 {
2209 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2210 IStorage *stg = NULL;
2211 WCHAR name[CCH_MAX_PROPSTG_NAME];
2212 HRESULT r;
2213
2214 TRACE("%p %s\n", This, debugstr_guid(rfmtid));
2215
2216 if (!rfmtid)
2217 return E_INVALIDARG;
2218
2219 r = FmtIdToPropStgName(rfmtid, name);
2220 if (FAILED(r))
2221 return r;
2222
2223 stg = (IStorage*) This;
2224 return IStorage_DestroyElement(stg, name);
2225 }
2226
2227 /************************************************************************
2228 * IPropertySetStorage_fnEnum (IPropertySetStorage)
2229 */
2230 static HRESULT WINAPI IPropertySetStorage_fnEnum(
2231 IPropertySetStorage *ppstg,
2232 IEnumSTATPROPSETSTG** ppenum)
2233 {
2234 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2235 return create_EnumSTATPROPSETSTG(This, ppenum);
2236 }
2237
2238 /************************************************************************
2239 * Implement IEnumSTATPROPSETSTG using enumx
2240 */
2241 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnQueryInterface(
2242 IEnumSTATPROPSETSTG *iface,
2243 REFIID riid,
2244 void** ppvObject)
2245 {
2246 return enumx_QueryInterface((enumx_impl*)iface, riid, ppvObject);
2247 }
2248
2249 static ULONG WINAPI IEnumSTATPROPSETSTG_fnAddRef(
2250 IEnumSTATPROPSETSTG *iface)
2251 {
2252 return enumx_AddRef((enumx_impl*)iface);
2253 }
2254
2255 static ULONG WINAPI IEnumSTATPROPSETSTG_fnRelease(
2256 IEnumSTATPROPSETSTG *iface)
2257 {
2258 return enumx_Release((enumx_impl*)iface);
2259 }
2260
2261 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnNext(
2262 IEnumSTATPROPSETSTG *iface,
2263 ULONG celt,
2264 STATPROPSETSTG *rgelt,
2265 ULONG *pceltFetched)
2266 {
2267 return enumx_Next((enumx_impl*)iface, celt, rgelt, pceltFetched);
2268 }
2269
2270 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnSkip(
2271 IEnumSTATPROPSETSTG *iface,
2272 ULONG celt)
2273 {
2274 return enumx_Skip((enumx_impl*)iface, celt);
2275 }
2276
2277 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnReset(
2278 IEnumSTATPROPSETSTG *iface)
2279 {
2280 return enumx_Reset((enumx_impl*)iface);
2281 }
2282
2283 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnClone(
2284 IEnumSTATPROPSETSTG *iface,
2285 IEnumSTATPROPSETSTG **ppenum)
2286 {
2287 return enumx_Clone((enumx_impl*)iface, (enumx_impl**)ppenum);
2288 }
2289
2290 static HRESULT create_EnumSTATPROPSETSTG(
2291 StorageImpl *This,
2292 IEnumSTATPROPSETSTG** ppenum)
2293 {
2294 IStorage *stg = (IStorage*) &This->base.lpVtbl;
2295 IEnumSTATSTG *penum = NULL;
2296 STATSTG stat;
2297 ULONG count;
2298 HRESULT r;
2299 STATPROPSETSTG statpss;
2300 enumx_impl *enumx;
2301
2302 TRACE("%p %p\n", This, ppenum);
2303
2304 enumx = enumx_allocate(&IID_IEnumSTATPROPSETSTG,
2305 &IEnumSTATPROPSETSTG_Vtbl,
2306 sizeof (STATPROPSETSTG));
2307
2308 /* add all the property set elements into a list */
2309 r = IStorage_EnumElements(stg, 0, NULL, 0, &penum);
2310 if (FAILED(r))
2311 return E_OUTOFMEMORY;
2312
2313 while (1)
2314 {
2315 count = 0;
2316 r = IEnumSTATSTG_Next(penum, 1, &stat, &count);
2317 if (FAILED(r))
2318 break;
2319 if (!count)
2320 break;
2321 if (!stat.pwcsName)
2322 continue;
2323 if (stat.pwcsName[0] == 5 && stat.type == STGTY_STREAM)
2324 {
2325 PropStgNameToFmtId(stat.pwcsName, &statpss.fmtid);
2326 TRACE("adding %s (%s)\n", debugstr_w(stat.pwcsName),
2327 debugstr_guid(&statpss.fmtid));
2328 statpss.mtime = stat.mtime;
2329 statpss.atime = stat.atime;
2330 statpss.ctime = stat.ctime;
2331 statpss.grfFlags = stat.grfMode;
2332 statpss.clsid = stat.clsid;
2333 enumx_add_element(enumx, &statpss);
2334 }
2335 CoTaskMemFree(stat.pwcsName);
2336 }
2337 IEnumSTATSTG_Release(penum);
2338
2339 *ppenum = (IEnumSTATPROPSETSTG*) enumx;
2340
2341 return S_OK;
2342 }
2343
2344 /************************************************************************
2345 * Implement IEnumSTATPROPSTG using enumx
2346 */
2347 static HRESULT WINAPI IEnumSTATPROPSTG_fnQueryInterface(
2348 IEnumSTATPROPSTG *iface,
2349 REFIID riid,
2350 void** ppvObject)
2351 {
2352 return enumx_QueryInterface((enumx_impl*)iface, riid, ppvObject);
2353 }
2354
2355 static ULONG WINAPI IEnumSTATPROPSTG_fnAddRef(
2356 IEnumSTATPROPSTG *iface)
2357 {
2358 return enumx_AddRef((enumx_impl*)iface);
2359 }
2360
2361 static ULONG WINAPI IEnumSTATPROPSTG_fnRelease(
2362 IEnumSTATPROPSTG *iface)
2363 {
2364 return enumx_Release((enumx_impl*)iface);
2365 }
2366
2367 static HRESULT WINAPI IEnumSTATPROPSTG_fnNext(
2368 IEnumSTATPROPSTG *iface,
2369 ULONG celt,
2370 STATPROPSTG *rgelt,
2371 ULONG *pceltFetched)
2372 {
2373 return enumx_Next((enumx_impl*)iface, celt, rgelt, pceltFetched);
2374 }
2375
2376 static HRESULT WINAPI IEnumSTATPROPSTG_fnSkip(
2377 IEnumSTATPROPSTG *iface,
2378 ULONG celt)
2379 {
2380 return enumx_Skip((enumx_impl*)iface, celt);
2381 }
2382
2383 static HRESULT WINAPI IEnumSTATPROPSTG_fnReset(
2384 IEnumSTATPROPSTG *iface)
2385 {
2386 return enumx_Reset((enumx_impl*)iface);
2387 }
2388
2389 static HRESULT WINAPI IEnumSTATPROPSTG_fnClone(
2390 IEnumSTATPROPSTG *iface,
2391 IEnumSTATPROPSTG **ppenum)
2392 {
2393 return enumx_Clone((enumx_impl*)iface, (enumx_impl**)ppenum);
2394 }
2395
2396 static BOOL prop_enum_stat(const void *k, const void *v, void *extra, void *arg)
2397 {
2398 enumx_impl *enumx = arg;
2399 PROPID propid = (PROPID) k;
2400 const PROPVARIANT *prop = v;
2401 STATPROPSTG stat;
2402
2403 stat.lpwstrName = NULL;
2404 stat.propid = propid;
2405 stat.vt = prop->vt;
2406
2407 enumx_add_element(enumx, &stat);
2408
2409 return TRUE;
2410 }
2411
2412 static HRESULT create_EnumSTATPROPSTG(
2413 PropertyStorage_impl *This,
2414 IEnumSTATPROPSTG** ppenum)
2415 {
2416 enumx_impl *enumx;
2417
2418 TRACE("%p %p\n", This, ppenum);
2419
2420 enumx = enumx_allocate(&IID_IEnumSTATPROPSTG,
2421 &IEnumSTATPROPSTG_Vtbl,
2422 sizeof (STATPROPSTG));
2423
2424 dictionary_enumerate(This->propid_to_prop, prop_enum_stat, enumx);
2425
2426 *ppenum = (IEnumSTATPROPSTG*) enumx;
2427
2428 return S_OK;
2429 }
2430
2431 /***********************************************************************
2432 * vtables
2433 */
2434 const IPropertySetStorageVtbl IPropertySetStorage_Vtbl =
2435 {
2436 IPropertySetStorage_fnQueryInterface,
2437 IPropertySetStorage_fnAddRef,
2438 IPropertySetStorage_fnRelease,
2439 IPropertySetStorage_fnCreate,
2440 IPropertySetStorage_fnOpen,
2441 IPropertySetStorage_fnDelete,
2442 IPropertySetStorage_fnEnum
2443 };
2444
2445 static const IPropertyStorageVtbl IPropertyStorage_Vtbl =
2446 {
2447 IPropertyStorage_fnQueryInterface,
2448 IPropertyStorage_fnAddRef,
2449 IPropertyStorage_fnRelease,
2450 IPropertyStorage_fnReadMultiple,
2451 IPropertyStorage_fnWriteMultiple,
2452 IPropertyStorage_fnDeleteMultiple,
2453 IPropertyStorage_fnReadPropertyNames,
2454 IPropertyStorage_fnWritePropertyNames,
2455 IPropertyStorage_fnDeletePropertyNames,
2456 IPropertyStorage_fnCommit,
2457 IPropertyStorage_fnRevert,
2458 IPropertyStorage_fnEnum,
2459 IPropertyStorage_fnSetTimes,
2460 IPropertyStorage_fnSetClass,
2461 IPropertyStorage_fnStat,
2462 };
2463
2464 static const IEnumSTATPROPSETSTGVtbl IEnumSTATPROPSETSTG_Vtbl =
2465 {
2466 IEnumSTATPROPSETSTG_fnQueryInterface,
2467 IEnumSTATPROPSETSTG_fnAddRef,
2468 IEnumSTATPROPSETSTG_fnRelease,
2469 IEnumSTATPROPSETSTG_fnNext,
2470 IEnumSTATPROPSETSTG_fnSkip,
2471 IEnumSTATPROPSETSTG_fnReset,
2472 IEnumSTATPROPSETSTG_fnClone,
2473 };
2474
2475 static const IEnumSTATPROPSTGVtbl IEnumSTATPROPSTG_Vtbl =
2476 {
2477 IEnumSTATPROPSTG_fnQueryInterface,
2478 IEnumSTATPROPSTG_fnAddRef,
2479 IEnumSTATPROPSTG_fnRelease,
2480 IEnumSTATPROPSTG_fnNext,
2481 IEnumSTATPROPSTG_fnSkip,
2482 IEnumSTATPROPSTG_fnReset,
2483 IEnumSTATPROPSTG_fnClone,
2484 };
2485
2486 /***********************************************************************
2487 * Format ID <-> name conversion
2488 */
2489 static const WCHAR szSummaryInfo[] = { 5,'S','u','m','m','a','r','y',
2490 'I','n','f','o','r','m','a','t','i','o','n',0 };
2491 static const WCHAR szDocSummaryInfo[] = { 5,'D','o','c','u','m','e','n','t',
2492 'S','u','m','m','a','r','y','I','n','f','o','r','m','a','t','i','o','n',0 };
2493
2494 #define BITS_PER_BYTE 8
2495 #define CHARMASK 0x1f
2496 #define BITS_IN_CHARMASK 5
2497 #define NUM_ALPHA_CHARS 26
2498
2499 /***********************************************************************
2500 * FmtIdToPropStgName [ole32.@]
2501 * Returns the storage name of the format ID rfmtid.
2502 * PARAMS
2503 * rfmtid [I] Format ID for which to return a storage name
2504 * str [O] Storage name associated with rfmtid.
2505 *
2506 * RETURNS
2507 * E_INVALIDARG if rfmtid or str i NULL, S_OK otherwise.
2508 *
2509 * NOTES
2510 * str must be at least CCH_MAX_PROPSTG_NAME characters in length.
2511 */
2512 HRESULT WINAPI FmtIdToPropStgName(const FMTID *rfmtid, LPOLESTR str)
2513 {
2514 static const char fmtMap[] = "abcdefghijklmnopqrstuvwxyz012345";
2515
2516 TRACE("%s, %p\n", debugstr_guid(rfmtid), str);
2517
2518 if (!rfmtid) return E_INVALIDARG;
2519 if (!str) return E_INVALIDARG;
2520
2521 if (IsEqualGUID(&FMTID_SummaryInformation, rfmtid))
2522 lstrcpyW(str, szSummaryInfo);
2523 else if (IsEqualGUID(&FMTID_DocSummaryInformation, rfmtid))
2524 lstrcpyW(str, szDocSummaryInfo);
2525 else if (IsEqualGUID(&FMTID_UserDefinedProperties, rfmtid))
2526 lstrcpyW(str, szDocSummaryInfo);
2527 else
2528 {
2529 const BYTE *fmtptr;
2530 WCHAR *pstr = str;
2531 ULONG bitsRemaining = BITS_PER_BYTE;
2532
2533 *pstr++ = 5;
2534 for (fmtptr = (const BYTE *)rfmtid; fmtptr < (const BYTE *)rfmtid + sizeof(FMTID); )
2535 {
2536 ULONG i = *fmtptr >> (BITS_PER_BYTE - bitsRemaining);
2537
2538 if (bitsRemaining >= BITS_IN_CHARMASK)
2539 {
2540 *pstr = (WCHAR)(fmtMap[i & CHARMASK]);
2541 if (bitsRemaining == BITS_PER_BYTE && *pstr >= 'a' &&
2542 *pstr <= 'z')
2543 *pstr += 'A' - 'a';
2544 pstr++;
2545 bitsRemaining -= BITS_IN_CHARMASK;
2546 if (bitsRemaining == 0)
2547 {
2548 fmtptr++;
2549 bitsRemaining = BITS_PER_BYTE;
2550 }
2551 }
2552 else
2553 {
2554 if (++fmtptr < (const BYTE *)rfmtid + sizeof(FMTID))
2555 i |= *fmtptr << bitsRemaining;
2556 *pstr++ = (WCHAR)(fmtMap[i & CHARMASK]);
2557 bitsRemaining += BITS_PER_BYTE - BITS_IN_CHARMASK;
2558 }
2559 }
2560 *pstr = 0;
2561 }
2562 TRACE("returning %s\n", debugstr_w(str));
2563 return S_OK;
2564 }
2565
2566 /***********************************************************************
2567 * PropStgNameToFmtId [ole32.@]
2568 * Returns the format ID corresponding to the given name.
2569 * PARAMS
2570 * str [I] Storage name to convert to a format ID.
2571 * rfmtid [O] Format ID corresponding to str.
2572 *
2573 * RETURNS
2574 * E_INVALIDARG if rfmtid or str is NULL or if str can't be converted to
2575 * a format ID, S_OK otherwise.
2576 */
2577 HRESULT WINAPI PropStgNameToFmtId(const LPOLESTR str, FMTID *rfmtid)
2578 {
2579 HRESULT hr = STG_E_INVALIDNAME;
2580
2581 TRACE("%s, %p\n", debugstr_w(str), rfmtid);
2582
2583 if (!rfmtid) return E_INVALIDARG;
2584 if (!str) return STG_E_INVALIDNAME;
2585
2586 if (!lstrcmpiW(str, szDocSummaryInfo))
2587 {
2588 *rfmtid = FMTID_DocSummaryInformation;
2589 hr = S_OK;
2590 }
2591 else if (!lstrcmpiW(str, szSummaryInfo))
2592 {
2593 *rfmtid = FMTID_SummaryInformation;
2594 hr = S_OK;
2595 }
2596 else
2597 {
2598 ULONG bits;
2599 BYTE *fmtptr = (BYTE *)rfmtid - 1;
2600 const WCHAR *pstr = str;
2601
2602 memset(rfmtid, 0, sizeof(*rfmtid));
2603 for (bits = 0; bits < sizeof(FMTID) * BITS_PER_BYTE;
2604 bits += BITS_IN_CHARMASK)
2605 {
2606 ULONG bitsUsed = bits % BITS_PER_BYTE, bitsStored;
2607 WCHAR wc;
2608
2609 if (bitsUsed == 0)
2610 fmtptr++;
2611 wc = *++pstr - 'A';
2612 if (wc > NUM_ALPHA_CHARS)
2613 {
2614 wc += 'A' - 'a';
2615 if (wc > NUM_ALPHA_CHARS)
2616 {
2617 wc += 'a' - '0' + NUM_ALPHA_CHARS;
2618 if (wc > CHARMASK)
2619 {
2620 WARN("invalid character (%d)\n", *pstr);
2621 goto end;
2622 }
2623 }
2624 }
2625 *fmtptr |= wc << bitsUsed;
2626 bitsStored = min(BITS_PER_BYTE - bitsUsed, BITS_IN_CHARMASK);
2627 if (bitsStored < BITS_IN_CHARMASK)
2628 {
2629 wc >>= BITS_PER_BYTE - bitsUsed;
2630 if (bits + bitsStored == sizeof(FMTID) * BITS_PER_BYTE)
2631 {
2632 if (wc != 0)
2633 {
2634 WARN("extra bits\n");
2635 goto end;
2636 }
2637 break;
2638 }
2639 fmtptr++;
2640 *fmtptr |= (BYTE)wc;
2641 }
2642 }
2643 hr = S_OK;
2644 }
2645 end:
2646 return hr;
2647 }
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