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comdlg32: Return a device context when requested.
[wine/multimedia.git] / dlls / ole32 / stg_prop.c
blob53f57c18c3165b6e65cc61bb9a2a50951e7b215e
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 IPropertyStorage IPropertyStorage_iface;
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 static inline PropertyStorage_impl *impl_from_IPropertyStorage(IPropertyStorage *iface)
175 {
176 return CONTAINING_RECORD(iface, PropertyStorage_impl, IPropertyStorage_iface);
177 }
178
179 /************************************************************************
180 * IPropertyStorage_fnQueryInterface (IPropertyStorage)
181 */
182 static HRESULT WINAPI IPropertyStorage_fnQueryInterface(
183 IPropertyStorage *iface,
184 REFIID riid,
185 void** ppvObject)
186 {
187 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
188
189 TRACE("(%p, %s, %p)\n", This, debugstr_guid(riid), ppvObject);
190
191 if (!ppvObject)
192 return E_INVALIDARG;
193
194 *ppvObject = 0;
195
196 if (IsEqualGUID(&IID_IUnknown, riid) ||
197 IsEqualGUID(&IID_IPropertyStorage, riid))
198 {
199 IPropertyStorage_AddRef(iface);
200 *ppvObject = iface;
201 return S_OK;
202 }
203
204 return E_NOINTERFACE;
205 }
206
207 /************************************************************************
208 * IPropertyStorage_fnAddRef (IPropertyStorage)
209 */
210 static ULONG WINAPI IPropertyStorage_fnAddRef(
211 IPropertyStorage *iface)
212 {
213 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
214 return InterlockedIncrement(&This->ref);
215 }
216
217 /************************************************************************
218 * IPropertyStorage_fnRelease (IPropertyStorage)
219 */
220 static ULONG WINAPI IPropertyStorage_fnRelease(
221 IPropertyStorage *iface)
222 {
223 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
224 ULONG ref;
225
226 ref = InterlockedDecrement(&This->ref);
227 if (ref == 0)
228 {
229 TRACE("Destroying %p\n", This);
230 if (This->dirty)
231 IPropertyStorage_Commit(iface, STGC_DEFAULT);
232 IStream_Release(This->stm);
233 This->cs.DebugInfo->Spare[0] = 0;
234 DeleteCriticalSection(&This->cs);
235 PropertyStorage_DestroyDictionaries(This);
236 HeapFree(GetProcessHeap(), 0, This);
237 }
238 return ref;
239 }
240
241 static PROPVARIANT *PropertyStorage_FindProperty(PropertyStorage_impl *This,
242 DWORD propid)
243 {
244 PROPVARIANT *ret = NULL;
245
246 dictionary_find(This->propid_to_prop, UlongToPtr(propid), (void **)&ret);
247 TRACE("returning %p\n", ret);
248 return ret;
249 }
250
251 /* Returns NULL if name is NULL. */
252 static PROPVARIANT *PropertyStorage_FindPropertyByName(
253 PropertyStorage_impl *This, LPCWSTR name)
254 {
255 PROPVARIANT *ret = NULL;
256 void *propid;
257
258 if (!name)
259 return NULL;
260 if (This->codePage == CP_UNICODE)
261 {
262 if (dictionary_find(This->name_to_propid, name, &propid))
263 ret = PropertyStorage_FindProperty(This, PtrToUlong(propid));
264 }
265 else
266 {
267 LPSTR ansiName;
268 HRESULT hr = PropertyStorage_StringCopy((LPCSTR)name, CP_UNICODE,
269 &ansiName, This->codePage);
270
271 if (SUCCEEDED(hr))
272 {
273 if (dictionary_find(This->name_to_propid, ansiName, &propid))
274 ret = PropertyStorage_FindProperty(This, PtrToUlong(propid));
275 CoTaskMemFree(ansiName);
276 }
277 }
278 TRACE("returning %p\n", ret);
279 return ret;
280 }
281
282 static LPWSTR PropertyStorage_FindPropertyNameById(PropertyStorage_impl *This,
283 DWORD propid)
284 {
285 LPWSTR ret = NULL;
286
287 dictionary_find(This->propid_to_name, UlongToPtr(propid), (void **)&ret);
288 TRACE("returning %p\n", ret);
289 return ret;
290 }
291
292 /************************************************************************
293 * IPropertyStorage_fnReadMultiple (IPropertyStorage)
294 */
295 static HRESULT WINAPI IPropertyStorage_fnReadMultiple(
296 IPropertyStorage* iface,
297 ULONG cpspec,
298 const PROPSPEC rgpspec[],
299 PROPVARIANT rgpropvar[])
300 {
301 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
302 HRESULT hr = S_OK;
303 ULONG i;
304
305 TRACE("(%p, %d, %p, %p)\n", iface, cpspec, rgpspec, rgpropvar);
306
307 if (!cpspec)
308 return S_FALSE;
309 if (!rgpspec || !rgpropvar)
310 return E_INVALIDARG;
311 EnterCriticalSection(&This->cs);
312 for (i = 0; i < cpspec; i++)
313 {
314 PropVariantInit(&rgpropvar[i]);
315 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
316 {
317 PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This,
318 rgpspec[i].u.lpwstr);
319
320 if (prop)
321 PropertyStorage_PropVariantCopy(&rgpropvar[i], prop, GetACP(),
322 This->codePage);
323 }
324 else
325 {
326 switch (rgpspec[i].u.propid)
327 {
328 case PID_CODEPAGE:
329 rgpropvar[i].vt = VT_I2;
330 rgpropvar[i].u.iVal = This->codePage;
331 break;
332 case PID_LOCALE:
333 rgpropvar[i].vt = VT_I4;
334 rgpropvar[i].u.lVal = This->locale;
335 break;
336 default:
337 {
338 PROPVARIANT *prop = PropertyStorage_FindProperty(This,
339 rgpspec[i].u.propid);
340
341 if (prop)
342 PropertyStorage_PropVariantCopy(&rgpropvar[i], prop,
343 GetACP(), This->codePage);
344 else
345 hr = S_FALSE;
346 }
347 }
348 }
349 }
350 LeaveCriticalSection(&This->cs);
351 return hr;
352 }
353
354 static HRESULT PropertyStorage_StringCopy(LPCSTR src, LCID srcCP, LPSTR *dst,
355 LCID dstCP)
356 {
357 HRESULT hr = S_OK;
358 int len;
359
360 TRACE("%s, %p, %d, %d\n",
361 srcCP == CP_UNICODE ? debugstr_w((LPCWSTR)src) : debugstr_a(src), dst,
362 dstCP, srcCP);
363 assert(src);
364 assert(dst);
365 *dst = NULL;
366 if (dstCP == srcCP)
367 {
368 size_t len;
369
370 if (dstCP == CP_UNICODE)
371 len = (strlenW((LPCWSTR)src) + 1) * sizeof(WCHAR);
372 else
373 len = strlen(src) + 1;
374 *dst = CoTaskMemAlloc(len * sizeof(WCHAR));
375 if (!*dst)
376 hr = STG_E_INSUFFICIENTMEMORY;
377 else
378 memcpy(*dst, src, len);
379 }
380 else
381 {
382 if (dstCP == CP_UNICODE)
383 {
384 len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0);
385 *dst = CoTaskMemAlloc(len * sizeof(WCHAR));
386 if (!*dst)
387 hr = STG_E_INSUFFICIENTMEMORY;
388 else
389 MultiByteToWideChar(srcCP, 0, src, -1, (LPWSTR)*dst, len);
390 }
391 else
392 {
393 LPCWSTR wideStr = NULL;
394 LPWSTR wideStr_tmp = NULL;
395
396 if (srcCP == CP_UNICODE)
397 wideStr = (LPCWSTR)src;
398 else
399 {
400 len = MultiByteToWideChar(srcCP, 0, src, -1, NULL, 0);
401 wideStr_tmp = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
402 if (wideStr_tmp)
403 {
404 MultiByteToWideChar(srcCP, 0, src, -1, wideStr_tmp, len);
405 wideStr = wideStr_tmp;
406 }
407 else
408 hr = STG_E_INSUFFICIENTMEMORY;
409 }
410 if (SUCCEEDED(hr))
411 {
412 len = WideCharToMultiByte(dstCP, 0, wideStr, -1, NULL, 0,
413 NULL, NULL);
414 *dst = CoTaskMemAlloc(len);
415 if (!*dst)
416 hr = STG_E_INSUFFICIENTMEMORY;
417 else
418 {
419 BOOL defCharUsed = FALSE;
420
421 if (WideCharToMultiByte(dstCP, 0, wideStr, -1, *dst, len,
422 NULL, &defCharUsed) == 0 || defCharUsed)
423 {
424 CoTaskMemFree(*dst);
425 *dst = NULL;
426 hr = HRESULT_FROM_WIN32(ERROR_NO_UNICODE_TRANSLATION);
427 }
428 }
429 }
430 HeapFree(GetProcessHeap(), 0, wideStr_tmp);
431 }
432 }
433 TRACE("returning 0x%08x (%s)\n", hr,
434 dstCP == CP_UNICODE ? debugstr_w((LPCWSTR)*dst) : debugstr_a(*dst));
435 return hr;
436 }
437
438 static HRESULT PropertyStorage_PropVariantCopy(PROPVARIANT *prop,
439 const PROPVARIANT *propvar, LCID targetCP, LCID srcCP)
440 {
441 HRESULT hr = S_OK;
442
443 assert(prop);
444 assert(propvar);
445 if (propvar->vt == VT_LPSTR)
446 {
447 hr = PropertyStorage_StringCopy(propvar->u.pszVal, srcCP,
448 &prop->u.pszVal, targetCP);
449 if (SUCCEEDED(hr))
450 prop->vt = VT_LPSTR;
451 }
452 else
453 PropVariantCopy(prop, propvar);
454 return hr;
455 }
456
457 /* Stores the property with id propid and value propvar into this property
458 * storage. lcid is ignored if propvar's type is not VT_LPSTR. If propvar's
459 * type is VT_LPSTR, converts the string using lcid as the source code page
460 * and This->codePage as the target code page before storing.
461 * As a side effect, may change This->format to 1 if the type of propvar is
462 * a version 1-only property.
463 */
464 static HRESULT PropertyStorage_StorePropWithId(PropertyStorage_impl *This,
465 PROPID propid, const PROPVARIANT *propvar, LCID lcid)
466 {
467 HRESULT hr = S_OK;
468 PROPVARIANT *prop = PropertyStorage_FindProperty(This, propid);
469
470 assert(propvar);
471 if (propvar->vt & VT_BYREF || propvar->vt & VT_ARRAY)
472 This->format = 1;
473 switch (propvar->vt)
474 {
475 case VT_DECIMAL:
476 case VT_I1:
477 case VT_INT:
478 case VT_UINT:
479 case VT_VECTOR|VT_I1:
480 This->format = 1;
481 }
482 TRACE("Setting 0x%08x to type %d\n", propid, propvar->vt);
483 if (prop)
484 {
485 PropVariantClear(prop);
486 hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage,
487 lcid);
488 }
489 else
490 {
491 prop = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
492 sizeof(PROPVARIANT));
493 if (prop)
494 {
495 hr = PropertyStorage_PropVariantCopy(prop, propvar, This->codePage,
496 lcid);
497 if (SUCCEEDED(hr))
498 {
499 dictionary_insert(This->propid_to_prop, UlongToPtr(propid), prop);
500 if (propid > This->highestProp)
501 This->highestProp = propid;
502 }
503 else
504 HeapFree(GetProcessHeap(), 0, prop);
505 }
506 else
507 hr = STG_E_INSUFFICIENTMEMORY;
508 }
509 return hr;
510 }
511
512 /* Adds the name srcName to the name dictionaries, mapped to property ID id.
513 * srcName is encoded in code page cp, and is converted to This->codePage.
514 * If cp is CP_UNICODE, srcName is actually a unicode string.
515 * As a side effect, may change This->format to 1 if srcName is too long for
516 * a version 0 property storage.
517 * Doesn't validate id.
518 */
519 static HRESULT PropertyStorage_StoreNameWithId(PropertyStorage_impl *This,
520 LPCSTR srcName, LCID cp, PROPID id)
521 {
522 LPSTR name;
523 HRESULT hr;
524
525 assert(srcName);
526
527 hr = PropertyStorage_StringCopy(srcName, cp, &name, This->codePage);
528 if (SUCCEEDED(hr))
529 {
530 if (This->codePage == CP_UNICODE)
531 {
532 if (lstrlenW((LPWSTR)name) >= MAX_VERSION_0_PROP_NAME_LENGTH)
533 This->format = 1;
534 }
535 else
536 {
537 if (strlen(name) >= MAX_VERSION_0_PROP_NAME_LENGTH)
538 This->format = 1;
539 }
540 TRACE("Adding prop name %s, propid %d\n",
541 This->codePage == CP_UNICODE ? debugstr_w((LPCWSTR)name) :
542 debugstr_a(name), id);
543 dictionary_insert(This->name_to_propid, name, UlongToPtr(id));
544 dictionary_insert(This->propid_to_name, UlongToPtr(id), name);
545 }
546 return hr;
547 }
548
549 /************************************************************************
550 * IPropertyStorage_fnWriteMultiple (IPropertyStorage)
551 */
552 static HRESULT WINAPI IPropertyStorage_fnWriteMultiple(
553 IPropertyStorage* iface,
554 ULONG cpspec,
555 const PROPSPEC rgpspec[],
556 const PROPVARIANT rgpropvar[],
557 PROPID propidNameFirst)
558 {
559 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
560 HRESULT hr = S_OK;
561 ULONG i;
562
563 TRACE("(%p, %d, %p, %p)\n", iface, cpspec, rgpspec, rgpropvar);
564
565 if (cpspec && (!rgpspec || !rgpropvar))
566 return E_INVALIDARG;
567 if (!(This->grfMode & STGM_READWRITE))
568 return STG_E_ACCESSDENIED;
569 EnterCriticalSection(&This->cs);
570 This->dirty = TRUE;
571 This->originatorOS = (DWORD)MAKELONG(LOWORD(GetVersion()),
572 PROPSETHDR_OSVER_KIND_WIN32) ;
573 for (i = 0; i < cpspec; i++)
574 {
575 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
576 {
577 PROPVARIANT *prop = PropertyStorage_FindPropertyByName(This,
578 rgpspec[i].u.lpwstr);
579
580 if (prop)
581 PropVariantCopy(prop, &rgpropvar[i]);
582 else
583 {
584 /* Note that I don't do the special cases here that I do below,
585 * because naming the special PIDs isn't supported.
586 */
587 if (propidNameFirst < PID_FIRST_USABLE ||
588 propidNameFirst >= PID_MIN_READONLY)
589 hr = STG_E_INVALIDPARAMETER;
590 else
591 {
592 PROPID nextId = max(propidNameFirst, This->highestProp + 1);
593
594 hr = PropertyStorage_StoreNameWithId(This,
595 (LPCSTR)rgpspec[i].u.lpwstr, CP_UNICODE, nextId);
596 if (SUCCEEDED(hr))
597 hr = PropertyStorage_StorePropWithId(This, nextId,
598 &rgpropvar[i], GetACP());
599 }
600 }
601 }
602 else
603 {
604 switch (rgpspec[i].u.propid)
605 {
606 case PID_DICTIONARY:
607 /* Can't set the dictionary */
608 hr = STG_E_INVALIDPARAMETER;
609 break;
610 case PID_CODEPAGE:
611 /* Can only set the code page if nothing else has been set */
612 if (dictionary_num_entries(This->propid_to_prop) == 0 &&
613 rgpropvar[i].vt == VT_I2)
614 {
615 This->codePage = rgpropvar[i].u.iVal;
616 if (This->codePage == CP_UNICODE)
617 This->grfFlags &= ~PROPSETFLAG_ANSI;
618 else
619 This->grfFlags |= PROPSETFLAG_ANSI;
620 }
621 else
622 hr = STG_E_INVALIDPARAMETER;
623 break;
624 case PID_LOCALE:
625 /* Can only set the locale if nothing else has been set */
626 if (dictionary_num_entries(This->propid_to_prop) == 0 &&
627 rgpropvar[i].vt == VT_I4)
628 This->locale = rgpropvar[i].u.lVal;
629 else
630 hr = STG_E_INVALIDPARAMETER;
631 break;
632 case PID_ILLEGAL:
633 /* silently ignore like MSDN says */
634 break;
635 default:
636 if (rgpspec[i].u.propid >= PID_MIN_READONLY)
637 hr = STG_E_INVALIDPARAMETER;
638 else
639 hr = PropertyStorage_StorePropWithId(This,
640 rgpspec[i].u.propid, &rgpropvar[i], GetACP());
641 }
642 }
643 }
644 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
645 IPropertyStorage_Commit(iface, STGC_DEFAULT);
646 LeaveCriticalSection(&This->cs);
647 return hr;
648 }
649
650 /************************************************************************
651 * IPropertyStorage_fnDeleteMultiple (IPropertyStorage)
652 */
653 static HRESULT WINAPI IPropertyStorage_fnDeleteMultiple(
654 IPropertyStorage* iface,
655 ULONG cpspec,
656 const PROPSPEC rgpspec[])
657 {
658 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
659 ULONG i;
660 HRESULT hr;
661
662 TRACE("(%p, %d, %p)\n", iface, cpspec, rgpspec);
663
664 if (cpspec && !rgpspec)
665 return E_INVALIDARG;
666 if (!(This->grfMode & STGM_READWRITE))
667 return STG_E_ACCESSDENIED;
668 hr = S_OK;
669 EnterCriticalSection(&This->cs);
670 This->dirty = TRUE;
671 for (i = 0; i < cpspec; i++)
672 {
673 if (rgpspec[i].ulKind == PRSPEC_LPWSTR)
674 {
675 void *propid;
676
677 if (dictionary_find(This->name_to_propid, rgpspec[i].u.lpwstr, &propid))
678 dictionary_remove(This->propid_to_prop, propid);
679 }
680 else
681 {
682 if (rgpspec[i].u.propid >= PID_FIRST_USABLE &&
683 rgpspec[i].u.propid < PID_MIN_READONLY)
684 dictionary_remove(This->propid_to_prop, UlongToPtr(rgpspec[i].u.propid));
685 else
686 hr = STG_E_INVALIDPARAMETER;
687 }
688 }
689 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
690 IPropertyStorage_Commit(iface, STGC_DEFAULT);
691 LeaveCriticalSection(&This->cs);
692 return hr;
693 }
694
695 /************************************************************************
696 * IPropertyStorage_fnReadPropertyNames (IPropertyStorage)
697 */
698 static HRESULT WINAPI IPropertyStorage_fnReadPropertyNames(
699 IPropertyStorage* iface,
700 ULONG cpropid,
701 const PROPID rgpropid[],
702 LPOLESTR rglpwstrName[])
703 {
704 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
705 ULONG i;
706 HRESULT hr = S_FALSE;
707
708 TRACE("(%p, %d, %p, %p)\n", iface, cpropid, rgpropid, rglpwstrName);
709
710 if (cpropid && (!rgpropid || !rglpwstrName))
711 return E_INVALIDARG;
712 EnterCriticalSection(&This->cs);
713 for (i = 0; i < cpropid && SUCCEEDED(hr); i++)
714 {
715 LPWSTR name = PropertyStorage_FindPropertyNameById(This, rgpropid[i]);
716
717 if (name)
718 {
719 size_t len = lstrlenW(name);
720
721 hr = S_OK;
722 rglpwstrName[i] = CoTaskMemAlloc((len + 1) * sizeof(WCHAR));
723 if (rglpwstrName[i])
724 memcpy(rglpwstrName[i], name, (len + 1) * sizeof(WCHAR));
725 else
726 hr = STG_E_INSUFFICIENTMEMORY;
727 }
728 else
729 rglpwstrName[i] = NULL;
730 }
731 LeaveCriticalSection(&This->cs);
732 return hr;
733 }
734
735 /************************************************************************
736 * IPropertyStorage_fnWritePropertyNames (IPropertyStorage)
737 */
738 static HRESULT WINAPI IPropertyStorage_fnWritePropertyNames(
739 IPropertyStorage* iface,
740 ULONG cpropid,
741 const PROPID rgpropid[],
742 const LPOLESTR rglpwstrName[])
743 {
744 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
745 ULONG i;
746 HRESULT hr;
747
748 TRACE("(%p, %d, %p, %p)\n", iface, cpropid, rgpropid, rglpwstrName);
749
750 if (cpropid && (!rgpropid || !rglpwstrName))
751 return E_INVALIDARG;
752 if (!(This->grfMode & STGM_READWRITE))
753 return STG_E_ACCESSDENIED;
754 hr = S_OK;
755 EnterCriticalSection(&This->cs);
756 This->dirty = TRUE;
757 for (i = 0; SUCCEEDED(hr) && i < cpropid; i++)
758 {
759 if (rgpropid[i] != PID_ILLEGAL)
760 hr = PropertyStorage_StoreNameWithId(This, (LPCSTR)rglpwstrName[i],
761 CP_UNICODE, rgpropid[i]);
762 }
763 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
764 IPropertyStorage_Commit(iface, STGC_DEFAULT);
765 LeaveCriticalSection(&This->cs);
766 return hr;
767 }
768
769 /************************************************************************
770 * IPropertyStorage_fnDeletePropertyNames (IPropertyStorage)
771 */
772 static HRESULT WINAPI IPropertyStorage_fnDeletePropertyNames(
773 IPropertyStorage* iface,
774 ULONG cpropid,
775 const PROPID rgpropid[])
776 {
777 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
778 ULONG i;
779 HRESULT hr;
780
781 TRACE("(%p, %d, %p)\n", iface, cpropid, rgpropid);
782
783 if (cpropid && !rgpropid)
784 return E_INVALIDARG;
785 if (!(This->grfMode & STGM_READWRITE))
786 return STG_E_ACCESSDENIED;
787 hr = S_OK;
788 EnterCriticalSection(&This->cs);
789 This->dirty = TRUE;
790 for (i = 0; i < cpropid; i++)
791 {
792 LPWSTR name = NULL;
793
794 if (dictionary_find(This->propid_to_name, UlongToPtr(rgpropid[i]), (void **)&name))
795 {
796 dictionary_remove(This->propid_to_name, UlongToPtr(rgpropid[i]));
797 dictionary_remove(This->name_to_propid, name);
798 }
799 }
800 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
801 IPropertyStorage_Commit(iface, STGC_DEFAULT);
802 LeaveCriticalSection(&This->cs);
803 return hr;
804 }
805
806 /************************************************************************
807 * IPropertyStorage_fnCommit (IPropertyStorage)
808 */
809 static HRESULT WINAPI IPropertyStorage_fnCommit(
810 IPropertyStorage* iface,
811 DWORD grfCommitFlags)
812 {
813 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
814 HRESULT hr;
815
816 TRACE("(%p, 0x%08x)\n", iface, grfCommitFlags);
817
818 if (!(This->grfMode & STGM_READWRITE))
819 return STG_E_ACCESSDENIED;
820 EnterCriticalSection(&This->cs);
821 if (This->dirty)
822 hr = PropertyStorage_WriteToStream(This);
823 else
824 hr = S_OK;
825 LeaveCriticalSection(&This->cs);
826 return hr;
827 }
828
829 /************************************************************************
830 * IPropertyStorage_fnRevert (IPropertyStorage)
831 */
832 static HRESULT WINAPI IPropertyStorage_fnRevert(
833 IPropertyStorage* iface)
834 {
835 HRESULT hr;
836 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
837
838 TRACE("%p\n", iface);
839
840 EnterCriticalSection(&This->cs);
841 if (This->dirty)
842 {
843 PropertyStorage_DestroyDictionaries(This);
844 hr = PropertyStorage_CreateDictionaries(This);
845 if (SUCCEEDED(hr))
846 hr = PropertyStorage_ReadFromStream(This);
847 }
848 else
849 hr = S_OK;
850 LeaveCriticalSection(&This->cs);
851 return hr;
852 }
853
854 /************************************************************************
855 * IPropertyStorage_fnEnum (IPropertyStorage)
856 */
857 static HRESULT WINAPI IPropertyStorage_fnEnum(
858 IPropertyStorage* iface,
859 IEnumSTATPROPSTG** ppenum)
860 {
861 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
862 return create_EnumSTATPROPSTG(This, ppenum);
863 }
864
865 /************************************************************************
866 * IPropertyStorage_fnSetTimes (IPropertyStorage)
867 */
868 static HRESULT WINAPI IPropertyStorage_fnSetTimes(
869 IPropertyStorage* iface,
870 const FILETIME* pctime,
871 const FILETIME* patime,
872 const FILETIME* pmtime)
873 {
874 FIXME("\n");
875 return E_NOTIMPL;
876 }
877
878 /************************************************************************
879 * IPropertyStorage_fnSetClass (IPropertyStorage)
880 */
881 static HRESULT WINAPI IPropertyStorage_fnSetClass(
882 IPropertyStorage* iface,
883 REFCLSID clsid)
884 {
885 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
886
887 TRACE("%p, %s\n", iface, debugstr_guid(clsid));
888
889 if (!clsid)
890 return E_INVALIDARG;
891 if (!(This->grfMode & STGM_READWRITE))
892 return STG_E_ACCESSDENIED;
893 This->clsid = *clsid;
894 This->dirty = TRUE;
895 if (This->grfFlags & PROPSETFLAG_UNBUFFERED)
896 IPropertyStorage_Commit(iface, STGC_DEFAULT);
897 return S_OK;
898 }
899
900 /************************************************************************
901 * IPropertyStorage_fnStat (IPropertyStorage)
902 */
903 static HRESULT WINAPI IPropertyStorage_fnStat(
904 IPropertyStorage* iface,
905 STATPROPSETSTG* statpsstg)
906 {
907 PropertyStorage_impl *This = impl_from_IPropertyStorage(iface);
908 STATSTG stat;
909 HRESULT hr;
910
911 TRACE("%p, %p\n", iface, statpsstg);
912
913 if (!statpsstg)
914 return E_INVALIDARG;
915
916 hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME);
917 if (SUCCEEDED(hr))
918 {
919 statpsstg->fmtid = This->fmtid;
920 statpsstg->clsid = This->clsid;
921 statpsstg->grfFlags = This->grfFlags;
922 statpsstg->mtime = stat.mtime;
923 statpsstg->ctime = stat.ctime;
924 statpsstg->atime = stat.atime;
925 statpsstg->dwOSVersion = This->originatorOS;
926 }
927 return hr;
928 }
929
930 static int PropertyStorage_PropNameCompare(const void *a, const void *b,
931 void *extra)
932 {
933 PropertyStorage_impl *This = extra;
934
935 if (This->codePage == CP_UNICODE)
936 {
937 TRACE("(%s, %s)\n", debugstr_w(a), debugstr_w(b));
938 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
939 return lstrcmpW(a, b);
940 else
941 return lstrcmpiW(a, b);
942 }
943 else
944 {
945 TRACE("(%s, %s)\n", debugstr_a(a), debugstr_a(b));
946 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
947 return lstrcmpA(a, b);
948 else
949 return lstrcmpiA(a, b);
950 }
951 }
952
953 static void PropertyStorage_PropNameDestroy(void *k, void *d, void *extra)
954 {
955 CoTaskMemFree(k);
956 }
957
958 static int PropertyStorage_PropCompare(const void *a, const void *b,
959 void *extra)
960 {
961 TRACE("(%d, %d)\n", PtrToUlong(a), PtrToUlong(b));
962 return PtrToUlong(a) - PtrToUlong(b);
963 }
964
965 static void PropertyStorage_PropertyDestroy(void *k, void *d, void *extra)
966 {
967 PropVariantClear(d);
968 HeapFree(GetProcessHeap(), 0, d);
969 }
970
971 #ifdef WORDS_BIGENDIAN
972 /* Swaps each character in str to or from little endian; assumes the conversion
973 * is symmetric, that is, that lendian16toh is equivalent to htole16.
974 */
975 static void PropertyStorage_ByteSwapString(LPWSTR str, size_t len)
976 {
977 DWORD i;
978
979 /* Swap characters to host order.
980 * FIXME: alignment?
981 */
982 for (i = 0; i < len; i++)
983 str[i] = lendian16toh(str[i]);
984 }
985 #else
986 #define PropertyStorage_ByteSwapString(s, l)
987 #endif
988
989 /* Reads the dictionary from the memory buffer beginning at ptr. Interprets
990 * the entries according to the values of This->codePage and This->locale.
991 * FIXME: there isn't any checking whether the read property extends past the
992 * end of the buffer.
993 */
994 static HRESULT PropertyStorage_ReadDictionary(PropertyStorage_impl *This,
995 BYTE *ptr)
996 {
997 DWORD numEntries, i;
998 HRESULT hr = S_OK;
999
1000 assert(This->name_to_propid);
1001 assert(This->propid_to_name);
1002
1003 StorageUtl_ReadDWord(ptr, 0, &numEntries);
1004 TRACE("Reading %d entries:\n", numEntries);
1005 ptr += sizeof(DWORD);
1006 for (i = 0; SUCCEEDED(hr) && i < numEntries; i++)
1007 {
1008 PROPID propid;
1009 DWORD cbEntry;
1010
1011 StorageUtl_ReadDWord(ptr, 0, &propid);
1012 ptr += sizeof(PROPID);
1013 StorageUtl_ReadDWord(ptr, 0, &cbEntry);
1014 ptr += sizeof(DWORD);
1015 TRACE("Reading entry with ID 0x%08x, %d bytes\n", propid, cbEntry);
1016 /* Make sure the source string is NULL-terminated */
1017 if (This->codePage != CP_UNICODE)
1018 ptr[cbEntry - 1] = '\0';
1019 else
1020 *((LPWSTR)ptr + cbEntry / sizeof(WCHAR)) = '\0';
1021 hr = PropertyStorage_StoreNameWithId(This, (char*)ptr, This->codePage, propid);
1022 if (This->codePage == CP_UNICODE)
1023 {
1024 /* Unicode entries are padded to DWORD boundaries */
1025 if (cbEntry % sizeof(DWORD))
1026 ptr += sizeof(DWORD) - (cbEntry % sizeof(DWORD));
1027 }
1028 ptr += sizeof(DWORD) + cbEntry;
1029 }
1030 return hr;
1031 }
1032
1033 /* FIXME: there isn't any checking whether the read property extends past the
1034 * end of the buffer.
1035 */
1036 static HRESULT PropertyStorage_ReadProperty(PropertyStorage_impl *This,
1037 PROPVARIANT *prop, const BYTE *data)
1038 {
1039 HRESULT hr = S_OK;
1040
1041 assert(prop);
1042 assert(data);
1043 StorageUtl_ReadDWord(data, 0, (DWORD *)&prop->vt);
1044 data += sizeof(DWORD);
1045 switch (prop->vt)
1046 {
1047 case VT_EMPTY:
1048 case VT_NULL:
1049 break;
1050 case VT_I1:
1051 prop->u.cVal = *(const char *)data;
1052 TRACE("Read char 0x%x ('%c')\n", prop->u.cVal, prop->u.cVal);
1053 break;
1054 case VT_UI1:
1055 prop->u.bVal = *data;
1056 TRACE("Read byte 0x%x\n", prop->u.bVal);
1057 break;
1058 case VT_I2:
1059 StorageUtl_ReadWord(data, 0, (WORD*)&prop->u.iVal);
1060 TRACE("Read short %d\n", prop->u.iVal);
1061 break;
1062 case VT_UI2:
1063 StorageUtl_ReadWord(data, 0, &prop->u.uiVal);
1064 TRACE("Read ushort %d\n", prop->u.uiVal);
1065 break;
1066 case VT_INT:
1067 case VT_I4:
1068 StorageUtl_ReadDWord(data, 0, (DWORD*)&prop->u.lVal);
1069 TRACE("Read long %d\n", prop->u.lVal);
1070 break;
1071 case VT_UINT:
1072 case VT_UI4:
1073 StorageUtl_ReadDWord(data, 0, &prop->u.ulVal);
1074 TRACE("Read ulong %d\n", prop->u.ulVal);
1075 break;
1076 case VT_LPSTR:
1077 {
1078 DWORD count;
1079
1080 StorageUtl_ReadDWord(data, 0, &count);
1081 if (This->codePage == CP_UNICODE && count / 2)
1082 {
1083 WARN("Unicode string has odd number of bytes\n");
1084 hr = STG_E_INVALIDHEADER;
1085 }
1086 else
1087 {
1088 prop->u.pszVal = CoTaskMemAlloc(count);
1089 if (prop->u.pszVal)
1090 {
1091 memcpy(prop->u.pszVal, data + sizeof(DWORD), count);
1092 /* This is stored in the code page specified in This->codePage.
1093 * Don't convert it, the caller will just store it as-is.
1094 */
1095 if (This->codePage == CP_UNICODE)
1096 {
1097 /* Make sure it's NULL-terminated */
1098 prop->u.pszVal[count / sizeof(WCHAR) - 1] = '\0';
1099 TRACE("Read string value %s\n",
1100 debugstr_w(prop->u.pwszVal));
1101 }
1102 else
1103 {
1104 /* Make sure it's NULL-terminated */
1105 prop->u.pszVal[count - 1] = '\0';
1106 TRACE("Read string value %s\n", debugstr_a(prop->u.pszVal));
1107 }
1108 }
1109 else
1110 hr = STG_E_INSUFFICIENTMEMORY;
1111 }
1112 break;
1113 }
1114 case VT_BLOB:
1115 {
1116 DWORD count;
1117
1118 StorageUtl_ReadDWord(data, 0, &count);
1119 prop->u.blob.cbSize = count;
1120 prop->u.blob.pBlobData = CoTaskMemAlloc(count);
1121 if (prop->u.blob.pBlobData)
1122 {
1123 memcpy(prop->u.blob.pBlobData, data + sizeof(DWORD), count);
1124 TRACE("Read blob value of size %d\n", count);
1125 }
1126 else
1127 hr = STG_E_INSUFFICIENTMEMORY;
1128 break;
1129 }
1130 case VT_LPWSTR:
1131 {
1132 DWORD count;
1133
1134 StorageUtl_ReadDWord(data, 0, &count);
1135 prop->u.pwszVal = CoTaskMemAlloc(count * sizeof(WCHAR));
1136 if (prop->u.pwszVal)
1137 {
1138 memcpy(prop->u.pwszVal, data + sizeof(DWORD),
1139 count * sizeof(WCHAR));
1140 /* make sure string is NULL-terminated */
1141 prop->u.pwszVal[count - 1] = '\0';
1142 PropertyStorage_ByteSwapString(prop->u.pwszVal, count);
1143 TRACE("Read string value %s\n", debugstr_w(prop->u.pwszVal));
1144 }
1145 else
1146 hr = STG_E_INSUFFICIENTMEMORY;
1147 break;
1148 }
1149 case VT_FILETIME:
1150 StorageUtl_ReadULargeInteger(data, 0,
1151 (ULARGE_INTEGER *)&prop->u.filetime);
1152 break;
1153 case VT_CF:
1154 {
1155 DWORD len = 0, tag = 0;
1156
1157 StorageUtl_ReadDWord(data, 0, &len);
1158 StorageUtl_ReadDWord(data, 4, &tag);
1159 if (len > 8)
1160 {
1161 len -= 8;
1162 prop->u.pclipdata = CoTaskMemAlloc(sizeof (CLIPDATA));
1163 prop->u.pclipdata->cbSize = len;
1164 prop->u.pclipdata->ulClipFmt = tag;
1165 prop->u.pclipdata->pClipData = CoTaskMemAlloc(len - sizeof(prop->u.pclipdata->ulClipFmt));
1166 memcpy(prop->u.pclipdata->pClipData, data+8, len - sizeof(prop->u.pclipdata->ulClipFmt));
1167 }
1168 else
1169 hr = STG_E_INVALIDPARAMETER;
1170 }
1171 break;
1172 default:
1173 FIXME("unsupported type %d\n", prop->vt);
1174 hr = STG_E_INVALIDPARAMETER;
1175 }
1176 return hr;
1177 }
1178
1179 static HRESULT PropertyStorage_ReadHeaderFromStream(IStream *stm,
1180 PROPERTYSETHEADER *hdr)
1181 {
1182 BYTE buf[sizeof(PROPERTYSETHEADER)];
1183 ULONG count = 0;
1184 HRESULT hr;
1185
1186 assert(stm);
1187 assert(hdr);
1188 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1189 if (SUCCEEDED(hr))
1190 {
1191 if (count != sizeof(buf))
1192 {
1193 WARN("read only %d\n", count);
1194 hr = STG_E_INVALIDHEADER;
1195 }
1196 else
1197 {
1198 StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wByteOrder),
1199 &hdr->wByteOrder);
1200 StorageUtl_ReadWord(buf, offsetof(PROPERTYSETHEADER, wFormat),
1201 &hdr->wFormat);
1202 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, dwOSVer),
1203 &hdr->dwOSVer);
1204 StorageUtl_ReadGUID(buf, offsetof(PROPERTYSETHEADER, clsid),
1205 &hdr->clsid);
1206 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSETHEADER, reserved),
1207 &hdr->reserved);
1208 }
1209 }
1210 TRACE("returning 0x%08x\n", hr);
1211 return hr;
1212 }
1213
1214 static HRESULT PropertyStorage_ReadFmtIdOffsetFromStream(IStream *stm,
1215 FORMATIDOFFSET *fmt)
1216 {
1217 BYTE buf[sizeof(FORMATIDOFFSET)];
1218 ULONG count = 0;
1219 HRESULT hr;
1220
1221 assert(stm);
1222 assert(fmt);
1223 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1224 if (SUCCEEDED(hr))
1225 {
1226 if (count != sizeof(buf))
1227 {
1228 WARN("read only %d\n", count);
1229 hr = STG_E_INVALIDHEADER;
1230 }
1231 else
1232 {
1233 StorageUtl_ReadGUID(buf, offsetof(FORMATIDOFFSET, fmtid),
1234 &fmt->fmtid);
1235 StorageUtl_ReadDWord(buf, offsetof(FORMATIDOFFSET, dwOffset),
1236 &fmt->dwOffset);
1237 }
1238 }
1239 TRACE("returning 0x%08x\n", hr);
1240 return hr;
1241 }
1242
1243 static HRESULT PropertyStorage_ReadSectionHeaderFromStream(IStream *stm,
1244 PROPERTYSECTIONHEADER *hdr)
1245 {
1246 BYTE buf[sizeof(PROPERTYSECTIONHEADER)];
1247 ULONG count = 0;
1248 HRESULT hr;
1249
1250 assert(stm);
1251 assert(hdr);
1252 hr = IStream_Read(stm, buf, sizeof(buf), &count);
1253 if (SUCCEEDED(hr))
1254 {
1255 if (count != sizeof(buf))
1256 {
1257 WARN("read only %d\n", count);
1258 hr = STG_E_INVALIDHEADER;
1259 }
1260 else
1261 {
1262 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER,
1263 cbSection), &hdr->cbSection);
1264 StorageUtl_ReadDWord(buf, offsetof(PROPERTYSECTIONHEADER,
1265 cProperties), &hdr->cProperties);
1266 }
1267 }
1268 TRACE("returning 0x%08x\n", hr);
1269 return hr;
1270 }
1271
1272 static HRESULT PropertyStorage_ReadFromStream(PropertyStorage_impl *This)
1273 {
1274 PROPERTYSETHEADER hdr;
1275 FORMATIDOFFSET fmtOffset;
1276 PROPERTYSECTIONHEADER sectionHdr;
1277 LARGE_INTEGER seek;
1278 ULONG i;
1279 STATSTG stat;
1280 HRESULT hr;
1281 BYTE *buf = NULL;
1282 ULONG count = 0;
1283 DWORD dictOffset = 0;
1284
1285 This->dirty = FALSE;
1286 This->highestProp = 0;
1287 hr = IStream_Stat(This->stm, &stat, STATFLAG_NONAME);
1288 if (FAILED(hr))
1289 goto end;
1290 if (stat.cbSize.u.HighPart)
1291 {
1292 WARN("stream too big\n");
1293 /* maximum size varies, but it can't be this big */
1294 hr = STG_E_INVALIDHEADER;
1295 goto end;
1296 }
1297 if (stat.cbSize.u.LowPart == 0)
1298 {
1299 /* empty stream is okay */
1300 hr = S_OK;
1301 goto end;
1302 }
1303 else if (stat.cbSize.u.LowPart < sizeof(PROPERTYSETHEADER) +
1304 sizeof(FORMATIDOFFSET))
1305 {
1306 WARN("stream too small\n");
1307 hr = STG_E_INVALIDHEADER;
1308 goto end;
1309 }
1310 seek.QuadPart = 0;
1311 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1312 if (FAILED(hr))
1313 goto end;
1314 hr = PropertyStorage_ReadHeaderFromStream(This->stm, &hdr);
1315 /* I've only seen reserved == 1, but the article says I shouldn't disallow
1316 * higher values.
1317 */
1318 if (hdr.wByteOrder != PROPSETHDR_BYTEORDER_MAGIC || hdr.reserved < 1)
1319 {
1320 WARN("bad magic in prop set header\n");
1321 hr = STG_E_INVALIDHEADER;
1322 goto end;
1323 }
1324 if (hdr.wFormat != 0 && hdr.wFormat != 1)
1325 {
1326 WARN("bad format version %d\n", hdr.wFormat);
1327 hr = STG_E_INVALIDHEADER;
1328 goto end;
1329 }
1330 This->format = hdr.wFormat;
1331 This->clsid = hdr.clsid;
1332 This->originatorOS = hdr.dwOSVer;
1333 if (PROPSETHDR_OSVER_KIND(hdr.dwOSVer) == PROPSETHDR_OSVER_KIND_MAC)
1334 WARN("File comes from a Mac, strings will probably be screwed up\n");
1335 hr = PropertyStorage_ReadFmtIdOffsetFromStream(This->stm, &fmtOffset);
1336 if (FAILED(hr))
1337 goto end;
1338 if (fmtOffset.dwOffset > stat.cbSize.u.LowPart)
1339 {
1340 WARN("invalid offset %d (stream length is %d)\n", fmtOffset.dwOffset,
1341 stat.cbSize.u.LowPart);
1342 hr = STG_E_INVALIDHEADER;
1343 goto end;
1344 }
1345 /* wackiness alert: if the format ID is FMTID_DocSummaryInformation, there
1346 * follow not one, but two sections. The first is the standard properties
1347 * for the document summary information, and the second is user-defined
1348 * properties. This is the only case in which multiple sections are
1349 * allowed.
1350 * Reading the second stream isn't implemented yet.
1351 */
1352 hr = PropertyStorage_ReadSectionHeaderFromStream(This->stm, &sectionHdr);
1353 if (FAILED(hr))
1354 goto end;
1355 /* The section size includes the section header, so check it */
1356 if (sectionHdr.cbSection < sizeof(PROPERTYSECTIONHEADER))
1357 {
1358 WARN("section header too small, got %d\n", sectionHdr.cbSection);
1359 hr = STG_E_INVALIDHEADER;
1360 goto end;
1361 }
1362 buf = HeapAlloc(GetProcessHeap(), 0, sectionHdr.cbSection -
1363 sizeof(PROPERTYSECTIONHEADER));
1364 if (!buf)
1365 {
1366 hr = STG_E_INSUFFICIENTMEMORY;
1367 goto end;
1368 }
1369 hr = IStream_Read(This->stm, buf, sectionHdr.cbSection -
1370 sizeof(PROPERTYSECTIONHEADER), &count);
1371 if (FAILED(hr))
1372 goto end;
1373 TRACE("Reading %d properties:\n", sectionHdr.cProperties);
1374 for (i = 0; SUCCEEDED(hr) && i < sectionHdr.cProperties; i++)
1375 {
1376 PROPERTYIDOFFSET *idOffset = (PROPERTYIDOFFSET *)(buf +
1377 i * sizeof(PROPERTYIDOFFSET));
1378
1379 if (idOffset->dwOffset < sizeof(PROPERTYSECTIONHEADER) ||
1380 idOffset->dwOffset > sectionHdr.cbSection - sizeof(DWORD))
1381 hr = STG_E_INVALIDPOINTER;
1382 else
1383 {
1384 if (idOffset->propid >= PID_FIRST_USABLE &&
1385 idOffset->propid < PID_MIN_READONLY && idOffset->propid >
1386 This->highestProp)
1387 This->highestProp = idOffset->propid;
1388 if (idOffset->propid == PID_DICTIONARY)
1389 {
1390 /* Don't read the dictionary yet, its entries depend on the
1391 * code page. Just store the offset so we know to read it
1392 * later.
1393 */
1394 dictOffset = idOffset->dwOffset;
1395 TRACE("Dictionary offset is %d\n", dictOffset);
1396 }
1397 else
1398 {
1399 PROPVARIANT prop;
1400
1401 PropVariantInit(&prop);
1402 if (SUCCEEDED(PropertyStorage_ReadProperty(This, &prop,
1403 buf + idOffset->dwOffset - sizeof(PROPERTYSECTIONHEADER))))
1404 {
1405 TRACE("Read property with ID 0x%08x, type %d\n",
1406 idOffset->propid, prop.vt);
1407 switch(idOffset->propid)
1408 {
1409 case PID_CODEPAGE:
1410 if (prop.vt == VT_I2)
1411 This->codePage = (UINT)prop.u.iVal;
1412 break;
1413 case PID_LOCALE:
1414 if (prop.vt == VT_I4)
1415 This->locale = (LCID)prop.u.lVal;
1416 break;
1417 case PID_BEHAVIOR:
1418 if (prop.vt == VT_I4 && prop.u.lVal)
1419 This->grfFlags |= PROPSETFLAG_CASE_SENSITIVE;
1420 /* The format should already be 1, but just in case */
1421 This->format = 1;
1422 break;
1423 default:
1424 hr = PropertyStorage_StorePropWithId(This,
1425 idOffset->propid, &prop, This->codePage);
1426 }
1427 }
1428 PropVariantClear(&prop);
1429 }
1430 }
1431 }
1432 if (!This->codePage)
1433 {
1434 /* default to Unicode unless told not to, as specified on msdn */
1435 if (This->grfFlags & PROPSETFLAG_ANSI)
1436 This->codePage = GetACP();
1437 else
1438 This->codePage = CP_UNICODE;
1439 }
1440 if (!This->locale)
1441 This->locale = LOCALE_SYSTEM_DEFAULT;
1442 TRACE("Code page is %d, locale is %d\n", This->codePage, This->locale);
1443 if (dictOffset)
1444 hr = PropertyStorage_ReadDictionary(This,
1445 buf + dictOffset - sizeof(PROPERTYSECTIONHEADER));
1446
1447 end:
1448 HeapFree(GetProcessHeap(), 0, buf);
1449 if (FAILED(hr))
1450 {
1451 dictionary_destroy(This->name_to_propid);
1452 This->name_to_propid = NULL;
1453 dictionary_destroy(This->propid_to_name);
1454 This->propid_to_name = NULL;
1455 dictionary_destroy(This->propid_to_prop);
1456 This->propid_to_prop = NULL;
1457 }
1458 return hr;
1459 }
1460
1461 static void PropertyStorage_MakeHeader(PropertyStorage_impl *This,
1462 PROPERTYSETHEADER *hdr)
1463 {
1464 assert(hdr);
1465 StorageUtl_WriteWord((BYTE *)&hdr->wByteOrder, 0,
1466 PROPSETHDR_BYTEORDER_MAGIC);
1467 StorageUtl_WriteWord((BYTE *)&hdr->wFormat, 0, This->format);
1468 StorageUtl_WriteDWord((BYTE *)&hdr->dwOSVer, 0, This->originatorOS);
1469 StorageUtl_WriteGUID((BYTE *)&hdr->clsid, 0, &This->clsid);
1470 StorageUtl_WriteDWord((BYTE *)&hdr->reserved, 0, 1);
1471 }
1472
1473 static void PropertyStorage_MakeFmtIdOffset(PropertyStorage_impl *This,
1474 FORMATIDOFFSET *fmtOffset)
1475 {
1476 assert(fmtOffset);
1477 StorageUtl_WriteGUID((BYTE *)fmtOffset, 0, &This->fmtid);
1478 StorageUtl_WriteDWord((BYTE *)fmtOffset, offsetof(FORMATIDOFFSET, dwOffset),
1479 sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET));
1480 }
1481
1482 static void PropertyStorage_MakeSectionHdr(DWORD cbSection, DWORD numProps,
1483 PROPERTYSECTIONHEADER *hdr)
1484 {
1485 assert(hdr);
1486 StorageUtl_WriteDWord((BYTE *)hdr, 0, cbSection);
1487 StorageUtl_WriteDWord((BYTE *)hdr,
1488 offsetof(PROPERTYSECTIONHEADER, cProperties), numProps);
1489 }
1490
1491 static void PropertyStorage_MakePropertyIdOffset(DWORD propid, DWORD dwOffset,
1492 PROPERTYIDOFFSET *propIdOffset)
1493 {
1494 assert(propIdOffset);
1495 StorageUtl_WriteDWord((BYTE *)propIdOffset, 0, propid);
1496 StorageUtl_WriteDWord((BYTE *)propIdOffset,
1497 offsetof(PROPERTYIDOFFSET, dwOffset), dwOffset);
1498 }
1499
1500 static inline HRESULT PropertStorage_WriteWStringToStream(IStream *stm,
1501 LPCWSTR str, DWORD len, DWORD *written)
1502 {
1503 #ifdef WORDS_BIGENDIAN
1504 WCHAR *leStr = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1505 HRESULT hr;
1506
1507 if (!leStr)
1508 return E_OUTOFMEMORY;
1509 memcpy(leStr, str, len * sizeof(WCHAR));
1510 PropertyStorage_ByteSwapString(leStr, len);
1511 hr = IStream_Write(stm, leStr, len, written);
1512 HeapFree(GetProcessHeap(), 0, leStr);
1513 return hr;
1514 #else
1515 return IStream_Write(stm, str, len, written);
1516 #endif
1517 }
1518
1519 struct DictionaryClosure
1520 {
1521 HRESULT hr;
1522 DWORD bytesWritten;
1523 };
1524
1525 static BOOL PropertyStorage_DictionaryWriter(const void *key,
1526 const void *value, void *extra, void *closure)
1527 {
1528 PropertyStorage_impl *This = extra;
1529 struct DictionaryClosure *c = closure;
1530 DWORD propid;
1531 ULONG count;
1532
1533 assert(key);
1534 assert(closure);
1535 StorageUtl_WriteDWord((LPBYTE)&propid, 0, PtrToUlong(value));
1536 c->hr = IStream_Write(This->stm, &propid, sizeof(propid), &count);
1537 if (FAILED(c->hr))
1538 goto end;
1539 c->bytesWritten += sizeof(DWORD);
1540 if (This->codePage == CP_UNICODE)
1541 {
1542 DWORD keyLen, pad = 0;
1543
1544 StorageUtl_WriteDWord((LPBYTE)&keyLen, 0,
1545 (lstrlenW((LPCWSTR)key) + 1) * sizeof(WCHAR));
1546 c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count);
1547 if (FAILED(c->hr))
1548 goto end;
1549 c->bytesWritten += sizeof(DWORD);
1550 c->hr = PropertStorage_WriteWStringToStream(This->stm, key, keyLen,
1551 &count);
1552 if (FAILED(c->hr))
1553 goto end;
1554 c->bytesWritten += keyLen * sizeof(WCHAR);
1555 if (keyLen % sizeof(DWORD))
1556 {
1557 c->hr = IStream_Write(This->stm, &pad,
1558 sizeof(DWORD) - keyLen % sizeof(DWORD), &count);
1559 if (FAILED(c->hr))
1560 goto end;
1561 c->bytesWritten += sizeof(DWORD) - keyLen % sizeof(DWORD);
1562 }
1563 }
1564 else
1565 {
1566 DWORD keyLen;
1567
1568 StorageUtl_WriteDWord((LPBYTE)&keyLen, 0, strlen((LPCSTR)key) + 1);
1569 c->hr = IStream_Write(This->stm, &keyLen, sizeof(keyLen), &count);
1570 if (FAILED(c->hr))
1571 goto end;
1572 c->bytesWritten += sizeof(DWORD);
1573 c->hr = IStream_Write(This->stm, key, keyLen, &count);
1574 if (FAILED(c->hr))
1575 goto end;
1576 c->bytesWritten += keyLen;
1577 }
1578 end:
1579 return SUCCEEDED(c->hr);
1580 }
1581
1582 #define SECTIONHEADER_OFFSET sizeof(PROPERTYSETHEADER) + sizeof(FORMATIDOFFSET)
1583
1584 /* Writes the dictionary to the stream. Assumes without checking that the
1585 * dictionary isn't empty.
1586 */
1587 static HRESULT PropertyStorage_WriteDictionaryToStream(
1588 PropertyStorage_impl *This, DWORD *sectionOffset)
1589 {
1590 HRESULT hr;
1591 LARGE_INTEGER seek;
1592 PROPERTYIDOFFSET propIdOffset;
1593 ULONG count;
1594 DWORD dwTemp;
1595 struct DictionaryClosure closure;
1596
1597 assert(sectionOffset);
1598
1599 /* The dictionary's always the first property written, so seek to its
1600 * spot.
1601 */
1602 seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER);
1603 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1604 if (FAILED(hr))
1605 goto end;
1606 PropertyStorage_MakePropertyIdOffset(PID_DICTIONARY, *sectionOffset,
1607 &propIdOffset);
1608 hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count);
1609 if (FAILED(hr))
1610 goto end;
1611
1612 seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset;
1613 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1614 if (FAILED(hr))
1615 goto end;
1616 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0,
1617 dictionary_num_entries(This->name_to_propid));
1618 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1619 if (FAILED(hr))
1620 goto end;
1621 *sectionOffset += sizeof(dwTemp);
1622
1623 closure.hr = S_OK;
1624 closure.bytesWritten = 0;
1625 dictionary_enumerate(This->name_to_propid, PropertyStorage_DictionaryWriter,
1626 &closure);
1627 hr = closure.hr;
1628 if (FAILED(hr))
1629 goto end;
1630 *sectionOffset += closure.bytesWritten;
1631 if (closure.bytesWritten % sizeof(DWORD))
1632 {
1633 DWORD padding = sizeof(DWORD) - closure.bytesWritten % sizeof(DWORD);
1634 TRACE("adding %d bytes of padding\n", padding);
1635 *sectionOffset += padding;
1636 }
1637
1638 end:
1639 return hr;
1640 }
1641
1642 static HRESULT PropertyStorage_WritePropertyToStream(PropertyStorage_impl *This,
1643 DWORD propNum, DWORD propid, const PROPVARIANT *var, DWORD *sectionOffset)
1644 {
1645 HRESULT hr;
1646 LARGE_INTEGER seek;
1647 PROPERTYIDOFFSET propIdOffset;
1648 ULONG count;
1649 DWORD dwType, bytesWritten;
1650
1651 assert(var);
1652 assert(sectionOffset);
1653
1654 TRACE("%p, %d, 0x%08x, (%d), (%d)\n", This, propNum, propid, var->vt,
1655 *sectionOffset);
1656
1657 seek.QuadPart = SECTIONHEADER_OFFSET + sizeof(PROPERTYSECTIONHEADER) +
1658 propNum * sizeof(PROPERTYIDOFFSET);
1659 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1660 if (FAILED(hr))
1661 goto end;
1662 PropertyStorage_MakePropertyIdOffset(propid, *sectionOffset, &propIdOffset);
1663 hr = IStream_Write(This->stm, &propIdOffset, sizeof(propIdOffset), &count);
1664 if (FAILED(hr))
1665 goto end;
1666
1667 seek.QuadPart = SECTIONHEADER_OFFSET + *sectionOffset;
1668 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1669 if (FAILED(hr))
1670 goto end;
1671 StorageUtl_WriteDWord((LPBYTE)&dwType, 0, var->vt);
1672 hr = IStream_Write(This->stm, &dwType, sizeof(dwType), &count);
1673 if (FAILED(hr))
1674 goto end;
1675 *sectionOffset += sizeof(dwType);
1676
1677 switch (var->vt)
1678 {
1679 case VT_EMPTY:
1680 case VT_NULL:
1681 bytesWritten = 0;
1682 break;
1683 case VT_I1:
1684 case VT_UI1:
1685 hr = IStream_Write(This->stm, &var->u.cVal, sizeof(var->u.cVal),
1686 &count);
1687 bytesWritten = count;
1688 break;
1689 case VT_I2:
1690 case VT_UI2:
1691 {
1692 WORD wTemp;
1693
1694 StorageUtl_WriteWord((LPBYTE)&wTemp, 0, var->u.iVal);
1695 hr = IStream_Write(This->stm, &wTemp, sizeof(wTemp), &count);
1696 bytesWritten = count;
1697 break;
1698 }
1699 case VT_I4:
1700 case VT_UI4:
1701 {
1702 DWORD dwTemp;
1703
1704 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, var->u.lVal);
1705 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1706 bytesWritten = count;
1707 break;
1708 }
1709 case VT_LPSTR:
1710 {
1711 DWORD len, dwTemp;
1712
1713 if (This->codePage == CP_UNICODE)
1714 len = (lstrlenW(var->u.pwszVal) + 1) * sizeof(WCHAR);
1715 else
1716 len = lstrlenA(var->u.pszVal) + 1;
1717 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, len);
1718 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1719 if (FAILED(hr))
1720 goto end;
1721 hr = IStream_Write(This->stm, var->u.pszVal, len, &count);
1722 bytesWritten = count + sizeof(DWORD);
1723 break;
1724 }
1725 case VT_LPWSTR:
1726 {
1727 DWORD len = lstrlenW(var->u.pwszVal) + 1, dwTemp;
1728
1729 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, len);
1730 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1731 if (FAILED(hr))
1732 goto end;
1733 hr = IStream_Write(This->stm, var->u.pwszVal, len * sizeof(WCHAR),
1734 &count);
1735 bytesWritten = count + sizeof(DWORD);
1736 break;
1737 }
1738 case VT_FILETIME:
1739 {
1740 FILETIME temp;
1741
1742 StorageUtl_WriteULargeInteger((BYTE *)&temp, 0,
1743 (const ULARGE_INTEGER *)&var->u.filetime);
1744 hr = IStream_Write(This->stm, &temp, sizeof(FILETIME), &count);
1745 bytesWritten = count;
1746 break;
1747 }
1748 case VT_CF:
1749 {
1750 DWORD cf_hdr[2], len;
1751
1752 len = var->u.pclipdata->cbSize;
1753 StorageUtl_WriteDWord((LPBYTE)&cf_hdr[0], 0, len + 8);
1754 StorageUtl_WriteDWord((LPBYTE)&cf_hdr[1], 0, var->u.pclipdata->ulClipFmt);
1755 hr = IStream_Write(This->stm, cf_hdr, sizeof(cf_hdr), &count);
1756 if (FAILED(hr))
1757 goto end;
1758 hr = IStream_Write(This->stm, var->u.pclipdata->pClipData,
1759 len - sizeof(var->u.pclipdata->ulClipFmt), &count);
1760 if (FAILED(hr))
1761 goto end;
1762 bytesWritten = count + sizeof cf_hdr;
1763 break;
1764 }
1765 case VT_CLSID:
1766 {
1767 CLSID temp;
1768
1769 StorageUtl_WriteGUID((BYTE *)&temp, 0, var->u.puuid);
1770 hr = IStream_Write(This->stm, &temp, sizeof(temp), &count);
1771 bytesWritten = count;
1772 break;
1773 }
1774 default:
1775 FIXME("unsupported type: %d\n", var->vt);
1776 return STG_E_INVALIDPARAMETER;
1777 }
1778
1779 if (SUCCEEDED(hr))
1780 {
1781 *sectionOffset += bytesWritten;
1782 if (bytesWritten % sizeof(DWORD))
1783 {
1784 DWORD padding = sizeof(DWORD) - bytesWritten % sizeof(DWORD);
1785 TRACE("adding %d bytes of padding\n", padding);
1786 *sectionOffset += padding;
1787 }
1788 }
1789
1790 end:
1791 return hr;
1792 }
1793
1794 struct PropertyClosure
1795 {
1796 HRESULT hr;
1797 DWORD propNum;
1798 DWORD *sectionOffset;
1799 };
1800
1801 static BOOL PropertyStorage_PropertiesWriter(const void *key, const void *value,
1802 void *extra, void *closure)
1803 {
1804 PropertyStorage_impl *This = extra;
1805 struct PropertyClosure *c = closure;
1806
1807 assert(key);
1808 assert(value);
1809 assert(extra);
1810 assert(closure);
1811 c->hr = PropertyStorage_WritePropertyToStream(This, c->propNum++,
1812 PtrToUlong(key), value, c->sectionOffset);
1813 return SUCCEEDED(c->hr);
1814 }
1815
1816 static HRESULT PropertyStorage_WritePropertiesToStream(
1817 PropertyStorage_impl *This, DWORD startingPropNum, DWORD *sectionOffset)
1818 {
1819 struct PropertyClosure closure;
1820
1821 assert(sectionOffset);
1822 closure.hr = S_OK;
1823 closure.propNum = startingPropNum;
1824 closure.sectionOffset = sectionOffset;
1825 dictionary_enumerate(This->propid_to_prop, PropertyStorage_PropertiesWriter,
1826 &closure);
1827 return closure.hr;
1828 }
1829
1830 static HRESULT PropertyStorage_WriteHeadersToStream(PropertyStorage_impl *This)
1831 {
1832 HRESULT hr;
1833 ULONG count = 0;
1834 LARGE_INTEGER seek = { {0} };
1835 PROPERTYSETHEADER hdr;
1836 FORMATIDOFFSET fmtOffset;
1837
1838 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1839 if (FAILED(hr))
1840 goto end;
1841 PropertyStorage_MakeHeader(This, &hdr);
1842 hr = IStream_Write(This->stm, &hdr, sizeof(hdr), &count);
1843 if (FAILED(hr))
1844 goto end;
1845 if (count != sizeof(hdr))
1846 {
1847 hr = STG_E_WRITEFAULT;
1848 goto end;
1849 }
1850
1851 PropertyStorage_MakeFmtIdOffset(This, &fmtOffset);
1852 hr = IStream_Write(This->stm, &fmtOffset, sizeof(fmtOffset), &count);
1853 if (FAILED(hr))
1854 goto end;
1855 if (count != sizeof(fmtOffset))
1856 {
1857 hr = STG_E_WRITEFAULT;
1858 goto end;
1859 }
1860 hr = S_OK;
1861
1862 end:
1863 return hr;
1864 }
1865
1866 static HRESULT PropertyStorage_WriteToStream(PropertyStorage_impl *This)
1867 {
1868 PROPERTYSECTIONHEADER sectionHdr;
1869 HRESULT hr;
1870 ULONG count;
1871 LARGE_INTEGER seek;
1872 DWORD numProps, prop, sectionOffset, dwTemp;
1873 PROPVARIANT var;
1874
1875 PropertyStorage_WriteHeadersToStream(This);
1876
1877 /* Count properties. Always at least one property, the code page */
1878 numProps = 1;
1879 if (dictionary_num_entries(This->name_to_propid))
1880 numProps++;
1881 if (This->locale != LOCALE_SYSTEM_DEFAULT)
1882 numProps++;
1883 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
1884 numProps++;
1885 numProps += dictionary_num_entries(This->propid_to_prop);
1886
1887 /* Write section header with 0 bytes right now, I'll adjust it after
1888 * writing properties.
1889 */
1890 PropertyStorage_MakeSectionHdr(0, numProps, &sectionHdr);
1891 seek.QuadPart = SECTIONHEADER_OFFSET;
1892 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1893 if (FAILED(hr))
1894 goto end;
1895 hr = IStream_Write(This->stm, &sectionHdr, sizeof(sectionHdr), &count);
1896 if (FAILED(hr))
1897 goto end;
1898
1899 prop = 0;
1900 sectionOffset = sizeof(PROPERTYSECTIONHEADER) +
1901 numProps * sizeof(PROPERTYIDOFFSET);
1902
1903 if (dictionary_num_entries(This->name_to_propid))
1904 {
1905 prop++;
1906 hr = PropertyStorage_WriteDictionaryToStream(This, &sectionOffset);
1907 if (FAILED(hr))
1908 goto end;
1909 }
1910
1911 PropVariantInit(&var);
1912
1913 var.vt = VT_I2;
1914 var.u.iVal = This->codePage;
1915 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_CODEPAGE,
1916 &var, &sectionOffset);
1917 if (FAILED(hr))
1918 goto end;
1919
1920 if (This->locale != LOCALE_SYSTEM_DEFAULT)
1921 {
1922 var.vt = VT_I4;
1923 var.u.lVal = This->locale;
1924 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_LOCALE,
1925 &var, &sectionOffset);
1926 if (FAILED(hr))
1927 goto end;
1928 }
1929
1930 if (This->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
1931 {
1932 var.vt = VT_I4;
1933 var.u.lVal = 1;
1934 hr = PropertyStorage_WritePropertyToStream(This, prop++, PID_BEHAVIOR,
1935 &var, &sectionOffset);
1936 if (FAILED(hr))
1937 goto end;
1938 }
1939
1940 hr = PropertyStorage_WritePropertiesToStream(This, prop, &sectionOffset);
1941 if (FAILED(hr))
1942 goto end;
1943
1944 /* Now write the byte count of the section */
1945 seek.QuadPart = SECTIONHEADER_OFFSET;
1946 hr = IStream_Seek(This->stm, seek, STREAM_SEEK_SET, NULL);
1947 if (FAILED(hr))
1948 goto end;
1949 StorageUtl_WriteDWord((LPBYTE)&dwTemp, 0, sectionOffset);
1950 hr = IStream_Write(This->stm, &dwTemp, sizeof(dwTemp), &count);
1951
1952 end:
1953 return hr;
1954 }
1955
1956 /***********************************************************************
1957 * PropertyStorage_Construct
1958 */
1959 static void PropertyStorage_DestroyDictionaries(PropertyStorage_impl *This)
1960 {
1961 dictionary_destroy(This->name_to_propid);
1962 This->name_to_propid = NULL;
1963 dictionary_destroy(This->propid_to_name);
1964 This->propid_to_name = NULL;
1965 dictionary_destroy(This->propid_to_prop);
1966 This->propid_to_prop = NULL;
1967 }
1968
1969 static HRESULT PropertyStorage_CreateDictionaries(PropertyStorage_impl *This)
1970 {
1971 HRESULT hr = S_OK;
1972
1973 This->name_to_propid = dictionary_create(
1974 PropertyStorage_PropNameCompare, PropertyStorage_PropNameDestroy,
1975 This);
1976 if (!This->name_to_propid)
1977 {
1978 hr = STG_E_INSUFFICIENTMEMORY;
1979 goto end;
1980 }
1981 This->propid_to_name = dictionary_create(PropertyStorage_PropCompare,
1982 NULL, This);
1983 if (!This->propid_to_name)
1984 {
1985 hr = STG_E_INSUFFICIENTMEMORY;
1986 goto end;
1987 }
1988 This->propid_to_prop = dictionary_create(PropertyStorage_PropCompare,
1989 PropertyStorage_PropertyDestroy, This);
1990 if (!This->propid_to_prop)
1991 {
1992 hr = STG_E_INSUFFICIENTMEMORY;
1993 goto end;
1994 }
1995 end:
1996 if (FAILED(hr))
1997 PropertyStorage_DestroyDictionaries(This);
1998 return hr;
1999 }
2000
2001 static HRESULT PropertyStorage_BaseConstruct(IStream *stm,
2002 REFFMTID rfmtid, DWORD grfMode, PropertyStorage_impl **pps)
2003 {
2004 HRESULT hr = S_OK;
2005
2006 assert(pps);
2007 assert(rfmtid);
2008 *pps = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof **pps);
2009 if (!*pps)
2010 return E_OUTOFMEMORY;
2011
2012 (*pps)->IPropertyStorage_iface.lpVtbl = &IPropertyStorage_Vtbl;
2013 (*pps)->ref = 1;
2014 InitializeCriticalSection(&(*pps)->cs);
2015 (*pps)->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PropertyStorage_impl.cs");
2016 (*pps)->stm = stm;
2017 (*pps)->fmtid = *rfmtid;
2018 (*pps)->grfMode = grfMode;
2019
2020 hr = PropertyStorage_CreateDictionaries(*pps);
2021 if (FAILED(hr))
2022 {
2023 IStream_Release(stm);
2024 (*pps)->cs.DebugInfo->Spare[0] = 0;
2025 DeleteCriticalSection(&(*pps)->cs);
2026 HeapFree(GetProcessHeap(), 0, *pps);
2027 *pps = NULL;
2028 }
2029
2030 return hr;
2031 }
2032
2033 static HRESULT PropertyStorage_ConstructFromStream(IStream *stm,
2034 REFFMTID rfmtid, DWORD grfMode, IPropertyStorage** pps)
2035 {
2036 PropertyStorage_impl *ps;
2037 HRESULT hr;
2038
2039 assert(pps);
2040 hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps);
2041 if (SUCCEEDED(hr))
2042 {
2043 hr = PropertyStorage_ReadFromStream(ps);
2044 if (SUCCEEDED(hr))
2045 {
2046 *pps = &ps->IPropertyStorage_iface;
2047 TRACE("PropertyStorage %p constructed\n", ps);
2048 hr = S_OK;
2049 }
2050 else
2051 {
2052 PropertyStorage_DestroyDictionaries(ps);
2053 HeapFree(GetProcessHeap(), 0, ps);
2054 }
2055 }
2056 return hr;
2057 }
2058
2059 static HRESULT PropertyStorage_ConstructEmpty(IStream *stm,
2060 REFFMTID rfmtid, DWORD grfFlags, DWORD grfMode, IPropertyStorage** pps)
2061 {
2062 PropertyStorage_impl *ps;
2063 HRESULT hr;
2064
2065 assert(pps);
2066 hr = PropertyStorage_BaseConstruct(stm, rfmtid, grfMode, &ps);
2067 if (SUCCEEDED(hr))
2068 {
2069 ps->format = 0;
2070 ps->grfFlags = grfFlags;
2071 if (ps->grfFlags & PROPSETFLAG_CASE_SENSITIVE)
2072 ps->format = 1;
2073 /* default to Unicode unless told not to, as specified on msdn */
2074 if (ps->grfFlags & PROPSETFLAG_ANSI)
2075 ps->codePage = GetACP();
2076 else
2077 ps->codePage = CP_UNICODE;
2078 ps->locale = LOCALE_SYSTEM_DEFAULT;
2079 TRACE("Code page is %d, locale is %d\n", ps->codePage, ps->locale);
2080 *pps = &ps->IPropertyStorage_iface;
2081 TRACE("PropertyStorage %p constructed\n", ps);
2082 hr = S_OK;
2083 }
2084 return hr;
2085 }
2086
2087
2088 /***********************************************************************
2089 * Implementation of IPropertySetStorage
2090 */
2091
2092 /************************************************************************
2093 * IPropertySetStorage_fnQueryInterface (IUnknown)
2094 *
2095 * This method forwards to the common QueryInterface implementation
2096 */
2097 static HRESULT WINAPI IPropertySetStorage_fnQueryInterface(
2098 IPropertySetStorage *ppstg,
2099 REFIID riid,
2100 void** ppvObject)
2101 {
2102 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2103 return IStorage_QueryInterface( (IStorage*)This, riid, ppvObject );
2104 }
2105
2106 /************************************************************************
2107 * IPropertySetStorage_fnAddRef (IUnknown)
2108 *
2109 * This method forwards to the common AddRef implementation
2110 */
2111 static ULONG WINAPI IPropertySetStorage_fnAddRef(
2112 IPropertySetStorage *ppstg)
2113 {
2114 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2115 return IStorage_AddRef( (IStorage*)This );
2116 }
2117
2118 /************************************************************************
2119 * IPropertySetStorage_fnRelease (IUnknown)
2120 *
2121 * This method forwards to the common Release implementation
2122 */
2123 static ULONG WINAPI IPropertySetStorage_fnRelease(
2124 IPropertySetStorage *ppstg)
2125 {
2126 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2127 return IStorage_Release( (IStorage*)This );
2128 }
2129
2130 /************************************************************************
2131 * IPropertySetStorage_fnCreate (IPropertySetStorage)
2132 */
2133 static HRESULT WINAPI IPropertySetStorage_fnCreate(
2134 IPropertySetStorage *ppstg,
2135 REFFMTID rfmtid,
2136 const CLSID* pclsid,
2137 DWORD grfFlags,
2138 DWORD grfMode,
2139 IPropertyStorage** ppprstg)
2140 {
2141 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2142 WCHAR name[CCH_MAX_PROPSTG_NAME];
2143 IStream *stm = NULL;
2144 HRESULT r;
2145
2146 TRACE("%p %s %08x %08x %p\n", This, debugstr_guid(rfmtid), grfFlags,
2147 grfMode, ppprstg);
2148
2149 /* be picky */
2150 if (grfMode != (STGM_CREATE|STGM_READWRITE|STGM_SHARE_EXCLUSIVE))
2151 {
2152 r = STG_E_INVALIDFLAG;
2153 goto end;
2154 }
2155
2156 if (!rfmtid)
2157 {
2158 r = E_INVALIDARG;
2159 goto end;
2160 }
2161
2162 /* FIXME: if (grfFlags & PROPSETFLAG_NONSIMPLE), we need to create a
2163 * storage, not a stream. For now, disallow it.
2164 */
2165 if (grfFlags & PROPSETFLAG_NONSIMPLE)
2166 {
2167 FIXME("PROPSETFLAG_NONSIMPLE not supported\n");
2168 r = STG_E_INVALIDFLAG;
2169 goto end;
2170 }
2171
2172 r = FmtIdToPropStgName(rfmtid, name);
2173 if (FAILED(r))
2174 goto end;
2175
2176 r = IStorage_CreateStream( (IStorage*)This, name, grfMode, 0, 0, &stm );
2177 if (FAILED(r))
2178 goto end;
2179
2180 r = PropertyStorage_ConstructEmpty(stm, rfmtid, grfFlags, grfMode, ppprstg);
2181
2182 end:
2183 TRACE("returning 0x%08x\n", r);
2184 return r;
2185 }
2186
2187 /************************************************************************
2188 * IPropertySetStorage_fnOpen (IPropertySetStorage)
2189 */
2190 static HRESULT WINAPI IPropertySetStorage_fnOpen(
2191 IPropertySetStorage *ppstg,
2192 REFFMTID rfmtid,
2193 DWORD grfMode,
2194 IPropertyStorage** ppprstg)
2195 {
2196 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2197 IStream *stm = NULL;
2198 WCHAR name[CCH_MAX_PROPSTG_NAME];
2199 HRESULT r;
2200
2201 TRACE("%p %s %08x %p\n", This, debugstr_guid(rfmtid), grfMode, ppprstg);
2202
2203 /* be picky */
2204 if (grfMode != (STGM_READWRITE|STGM_SHARE_EXCLUSIVE) &&
2205 grfMode != (STGM_READ|STGM_SHARE_EXCLUSIVE))
2206 {
2207 r = STG_E_INVALIDFLAG;
2208 goto end;
2209 }
2210
2211 if (!rfmtid)
2212 {
2213 r = E_INVALIDARG;
2214 goto end;
2215 }
2216
2217 r = FmtIdToPropStgName(rfmtid, name);
2218 if (FAILED(r))
2219 goto end;
2220
2221 r = IStorage_OpenStream((IStorage*) This, name, 0, grfMode, 0, &stm );
2222 if (FAILED(r))
2223 goto end;
2224
2225 r = PropertyStorage_ConstructFromStream(stm, rfmtid, grfMode, ppprstg);
2226
2227 end:
2228 TRACE("returning 0x%08x\n", r);
2229 return r;
2230 }
2231
2232 /************************************************************************
2233 * IPropertySetStorage_fnDelete (IPropertySetStorage)
2234 */
2235 static HRESULT WINAPI IPropertySetStorage_fnDelete(
2236 IPropertySetStorage *ppstg,
2237 REFFMTID rfmtid)
2238 {
2239 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2240 IStorage *stg = NULL;
2241 WCHAR name[CCH_MAX_PROPSTG_NAME];
2242 HRESULT r;
2243
2244 TRACE("%p %s\n", This, debugstr_guid(rfmtid));
2245
2246 if (!rfmtid)
2247 return E_INVALIDARG;
2248
2249 r = FmtIdToPropStgName(rfmtid, name);
2250 if (FAILED(r))
2251 return r;
2252
2253 stg = (IStorage*) This;
2254 return IStorage_DestroyElement(stg, name);
2255 }
2256
2257 /************************************************************************
2258 * IPropertySetStorage_fnEnum (IPropertySetStorage)
2259 */
2260 static HRESULT WINAPI IPropertySetStorage_fnEnum(
2261 IPropertySetStorage *ppstg,
2262 IEnumSTATPROPSETSTG** ppenum)
2263 {
2264 StorageImpl *This = impl_from_IPropertySetStorage(ppstg);
2265 return create_EnumSTATPROPSETSTG(This, ppenum);
2266 }
2267
2268 /************************************************************************
2269 * Implement IEnumSTATPROPSETSTG using enumx
2270 */
2271 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnQueryInterface(
2272 IEnumSTATPROPSETSTG *iface,
2273 REFIID riid,
2274 void** ppvObject)
2275 {
2276 return enumx_QueryInterface((enumx_impl*)iface, riid, ppvObject);
2277 }
2278
2279 static ULONG WINAPI IEnumSTATPROPSETSTG_fnAddRef(
2280 IEnumSTATPROPSETSTG *iface)
2281 {
2282 return enumx_AddRef((enumx_impl*)iface);
2283 }
2284
2285 static ULONG WINAPI IEnumSTATPROPSETSTG_fnRelease(
2286 IEnumSTATPROPSETSTG *iface)
2287 {
2288 return enumx_Release((enumx_impl*)iface);
2289 }
2290
2291 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnNext(
2292 IEnumSTATPROPSETSTG *iface,
2293 ULONG celt,
2294 STATPROPSETSTG *rgelt,
2295 ULONG *pceltFetched)
2296 {
2297 return enumx_Next((enumx_impl*)iface, celt, rgelt, pceltFetched);
2298 }
2299
2300 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnSkip(
2301 IEnumSTATPROPSETSTG *iface,
2302 ULONG celt)
2303 {
2304 return enumx_Skip((enumx_impl*)iface, celt);
2305 }
2306
2307 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnReset(
2308 IEnumSTATPROPSETSTG *iface)
2309 {
2310 return enumx_Reset((enumx_impl*)iface);
2311 }
2312
2313 static HRESULT WINAPI IEnumSTATPROPSETSTG_fnClone(
2314 IEnumSTATPROPSETSTG *iface,
2315 IEnumSTATPROPSETSTG **ppenum)
2316 {
2317 return enumx_Clone((enumx_impl*)iface, (enumx_impl**)ppenum);
2318 }
2319
2320 static HRESULT create_EnumSTATPROPSETSTG(
2321 StorageImpl *This,
2322 IEnumSTATPROPSETSTG** ppenum)
2323 {
2324 IStorage *stg = (IStorage*) &This->base.lpVtbl;
2325 IEnumSTATSTG *penum = NULL;
2326 STATSTG stat;
2327 ULONG count;
2328 HRESULT r;
2329 STATPROPSETSTG statpss;
2330 enumx_impl *enumx;
2331
2332 TRACE("%p %p\n", This, ppenum);
2333
2334 enumx = enumx_allocate(&IID_IEnumSTATPROPSETSTG,
2335 &IEnumSTATPROPSETSTG_Vtbl,
2336 sizeof (STATPROPSETSTG));
2337
2338 /* add all the property set elements into a list */
2339 r = IStorage_EnumElements(stg, 0, NULL, 0, &penum);
2340 if (FAILED(r))
2341 return E_OUTOFMEMORY;
2342
2343 while (1)
2344 {
2345 count = 0;
2346 r = IEnumSTATSTG_Next(penum, 1, &stat, &count);
2347 if (FAILED(r))
2348 break;
2349 if (!count)
2350 break;
2351 if (!stat.pwcsName)
2352 continue;
2353 if (stat.pwcsName[0] == 5 && stat.type == STGTY_STREAM)
2354 {
2355 PropStgNameToFmtId(stat.pwcsName, &statpss.fmtid);
2356 TRACE("adding %s (%s)\n", debugstr_w(stat.pwcsName),
2357 debugstr_guid(&statpss.fmtid));
2358 statpss.mtime = stat.mtime;
2359 statpss.atime = stat.atime;
2360 statpss.ctime = stat.ctime;
2361 statpss.grfFlags = stat.grfMode;
2362 statpss.clsid = stat.clsid;
2363 enumx_add_element(enumx, &statpss);
2364 }
2365 CoTaskMemFree(stat.pwcsName);
2366 }
2367 IEnumSTATSTG_Release(penum);
2368
2369 *ppenum = (IEnumSTATPROPSETSTG*) enumx;
2370
2371 return S_OK;
2372 }
2373
2374 /************************************************************************
2375 * Implement IEnumSTATPROPSTG using enumx
2376 */
2377 static HRESULT WINAPI IEnumSTATPROPSTG_fnQueryInterface(
2378 IEnumSTATPROPSTG *iface,
2379 REFIID riid,
2380 void** ppvObject)
2381 {
2382 return enumx_QueryInterface((enumx_impl*)iface, riid, ppvObject);
2383 }
2384
2385 static ULONG WINAPI IEnumSTATPROPSTG_fnAddRef(
2386 IEnumSTATPROPSTG *iface)
2387 {
2388 return enumx_AddRef((enumx_impl*)iface);
2389 }
2390
2391 static ULONG WINAPI IEnumSTATPROPSTG_fnRelease(
2392 IEnumSTATPROPSTG *iface)
2393 {
2394 return enumx_Release((enumx_impl*)iface);
2395 }
2396
2397 static HRESULT WINAPI IEnumSTATPROPSTG_fnNext(
2398 IEnumSTATPROPSTG *iface,
2399 ULONG celt,
2400 STATPROPSTG *rgelt,
2401 ULONG *pceltFetched)
2402 {
2403 return enumx_Next((enumx_impl*)iface, celt, rgelt, pceltFetched);
2404 }
2405
2406 static HRESULT WINAPI IEnumSTATPROPSTG_fnSkip(
2407 IEnumSTATPROPSTG *iface,
2408 ULONG celt)
2409 {
2410 return enumx_Skip((enumx_impl*)iface, celt);
2411 }
2412
2413 static HRESULT WINAPI IEnumSTATPROPSTG_fnReset(
2414 IEnumSTATPROPSTG *iface)
2415 {
2416 return enumx_Reset((enumx_impl*)iface);
2417 }
2418
2419 static HRESULT WINAPI IEnumSTATPROPSTG_fnClone(
2420 IEnumSTATPROPSTG *iface,
2421 IEnumSTATPROPSTG **ppenum)
2422 {
2423 return enumx_Clone((enumx_impl*)iface, (enumx_impl**)ppenum);
2424 }
2425
2426 static BOOL prop_enum_stat(const void *k, const void *v, void *extra, void *arg)
2427 {
2428 enumx_impl *enumx = arg;
2429 PROPID propid = PtrToUlong(k);
2430 const PROPVARIANT *prop = v;
2431 STATPROPSTG stat;
2432
2433 stat.lpwstrName = NULL;
2434 stat.propid = propid;
2435 stat.vt = prop->vt;
2436
2437 enumx_add_element(enumx, &stat);
2438
2439 return TRUE;
2440 }
2441
2442 static HRESULT create_EnumSTATPROPSTG(
2443 PropertyStorage_impl *This,
2444 IEnumSTATPROPSTG** ppenum)
2445 {
2446 enumx_impl *enumx;
2447
2448 TRACE("%p %p\n", This, ppenum);
2449
2450 enumx = enumx_allocate(&IID_IEnumSTATPROPSTG,
2451 &IEnumSTATPROPSTG_Vtbl,
2452 sizeof (STATPROPSTG));
2453
2454 dictionary_enumerate(This->propid_to_prop, prop_enum_stat, enumx);
2455
2456 *ppenum = (IEnumSTATPROPSTG*) enumx;
2457
2458 return S_OK;
2459 }
2460
2461 /***********************************************************************
2462 * vtables
2463 */
2464 const IPropertySetStorageVtbl IPropertySetStorage_Vtbl =
2465 {
2466 IPropertySetStorage_fnQueryInterface,
2467 IPropertySetStorage_fnAddRef,
2468 IPropertySetStorage_fnRelease,
2469 IPropertySetStorage_fnCreate,
2470 IPropertySetStorage_fnOpen,
2471 IPropertySetStorage_fnDelete,
2472 IPropertySetStorage_fnEnum
2473 };
2474
2475 static const IPropertyStorageVtbl IPropertyStorage_Vtbl =
2476 {
2477 IPropertyStorage_fnQueryInterface,
2478 IPropertyStorage_fnAddRef,
2479 IPropertyStorage_fnRelease,
2480 IPropertyStorage_fnReadMultiple,
2481 IPropertyStorage_fnWriteMultiple,
2482 IPropertyStorage_fnDeleteMultiple,
2483 IPropertyStorage_fnReadPropertyNames,
2484 IPropertyStorage_fnWritePropertyNames,
2485 IPropertyStorage_fnDeletePropertyNames,
2486 IPropertyStorage_fnCommit,
2487 IPropertyStorage_fnRevert,
2488 IPropertyStorage_fnEnum,
2489 IPropertyStorage_fnSetTimes,
2490 IPropertyStorage_fnSetClass,
2491 IPropertyStorage_fnStat,
2492 };
2493
2494 static const IEnumSTATPROPSETSTGVtbl IEnumSTATPROPSETSTG_Vtbl =
2495 {
2496 IEnumSTATPROPSETSTG_fnQueryInterface,
2497 IEnumSTATPROPSETSTG_fnAddRef,
2498 IEnumSTATPROPSETSTG_fnRelease,
2499 IEnumSTATPROPSETSTG_fnNext,
2500 IEnumSTATPROPSETSTG_fnSkip,
2501 IEnumSTATPROPSETSTG_fnReset,
2502 IEnumSTATPROPSETSTG_fnClone,
2503 };
2504
2505 static const IEnumSTATPROPSTGVtbl IEnumSTATPROPSTG_Vtbl =
2506 {
2507 IEnumSTATPROPSTG_fnQueryInterface,
2508 IEnumSTATPROPSTG_fnAddRef,
2509 IEnumSTATPROPSTG_fnRelease,
2510 IEnumSTATPROPSTG_fnNext,
2511 IEnumSTATPROPSTG_fnSkip,
2512 IEnumSTATPROPSTG_fnReset,
2513 IEnumSTATPROPSTG_fnClone,
2514 };
2515
2516 /***********************************************************************
2517 * Format ID <-> name conversion
2518 */
2519 static const WCHAR szSummaryInfo[] = { 5,'S','u','m','m','a','r','y',
2520 'I','n','f','o','r','m','a','t','i','o','n',0 };
2521 static const WCHAR szDocSummaryInfo[] = { 5,'D','o','c','u','m','e','n','t',
2522 'S','u','m','m','a','r','y','I','n','f','o','r','m','a','t','i','o','n',0 };
2523
2524 #define BITS_PER_BYTE 8
2525 #define CHARMASK 0x1f
2526 #define BITS_IN_CHARMASK 5
2527 #define NUM_ALPHA_CHARS 26
2528
2529 /***********************************************************************
2530 * FmtIdToPropStgName [ole32.@]
2531 * Returns the storage name of the format ID rfmtid.
2532 * PARAMS
2533 * rfmtid [I] Format ID for which to return a storage name
2534 * str [O] Storage name associated with rfmtid.
2535 *
2536 * RETURNS
2537 * E_INVALIDARG if rfmtid or str i NULL, S_OK otherwise.
2538 *
2539 * NOTES
2540 * str must be at least CCH_MAX_PROPSTG_NAME characters in length.
2541 */
2542 HRESULT WINAPI FmtIdToPropStgName(const FMTID *rfmtid, LPOLESTR str)
2543 {
2544 static const char fmtMap[] = "abcdefghijklmnopqrstuvwxyz012345";
2545
2546 TRACE("%s, %p\n", debugstr_guid(rfmtid), str);
2547
2548 if (!rfmtid) return E_INVALIDARG;
2549 if (!str) return E_INVALIDARG;
2550
2551 if (IsEqualGUID(&FMTID_SummaryInformation, rfmtid))
2552 lstrcpyW(str, szSummaryInfo);
2553 else if (IsEqualGUID(&FMTID_DocSummaryInformation, rfmtid))
2554 lstrcpyW(str, szDocSummaryInfo);
2555 else if (IsEqualGUID(&FMTID_UserDefinedProperties, rfmtid))
2556 lstrcpyW(str, szDocSummaryInfo);
2557 else
2558 {
2559 const BYTE *fmtptr;
2560 WCHAR *pstr = str;
2561 ULONG bitsRemaining = BITS_PER_BYTE;
2562
2563 *pstr++ = 5;
2564 for (fmtptr = (const BYTE *)rfmtid; fmtptr < (const BYTE *)rfmtid + sizeof(FMTID); )
2565 {
2566 ULONG i = *fmtptr >> (BITS_PER_BYTE - bitsRemaining);
2567
2568 if (bitsRemaining >= BITS_IN_CHARMASK)
2569 {
2570 *pstr = (WCHAR)(fmtMap[i & CHARMASK]);
2571 if (bitsRemaining == BITS_PER_BYTE && *pstr >= 'a' &&
2572 *pstr <= 'z')
2573 *pstr += 'A' - 'a';
2574 pstr++;
2575 bitsRemaining -= BITS_IN_CHARMASK;
2576 if (bitsRemaining == 0)
2577 {
2578 fmtptr++;
2579 bitsRemaining = BITS_PER_BYTE;
2580 }
2581 }
2582 else
2583 {
2584 if (++fmtptr < (const BYTE *)rfmtid + sizeof(FMTID))
2585 i |= *fmtptr << bitsRemaining;
2586 *pstr++ = (WCHAR)(fmtMap[i & CHARMASK]);
2587 bitsRemaining += BITS_PER_BYTE - BITS_IN_CHARMASK;
2588 }
2589 }
2590 *pstr = 0;
2591 }
2592 TRACE("returning %s\n", debugstr_w(str));
2593 return S_OK;
2594 }
2595
2596 /***********************************************************************
2597 * PropStgNameToFmtId [ole32.@]
2598 * Returns the format ID corresponding to the given name.
2599 * PARAMS
2600 * str [I] Storage name to convert to a format ID.
2601 * rfmtid [O] Format ID corresponding to str.
2602 *
2603 * RETURNS
2604 * E_INVALIDARG if rfmtid or str is NULL or if str can't be converted to
2605 * a format ID, S_OK otherwise.
2606 */
2607 HRESULT WINAPI PropStgNameToFmtId(const LPOLESTR str, FMTID *rfmtid)
2608 {
2609 HRESULT hr = STG_E_INVALIDNAME;
2610
2611 TRACE("%s, %p\n", debugstr_w(str), rfmtid);
2612
2613 if (!rfmtid) return E_INVALIDARG;
2614 if (!str) return STG_E_INVALIDNAME;
2615
2616 if (!lstrcmpiW(str, szDocSummaryInfo))
2617 {
2618 *rfmtid = FMTID_DocSummaryInformation;
2619 hr = S_OK;
2620 }
2621 else if (!lstrcmpiW(str, szSummaryInfo))
2622 {
2623 *rfmtid = FMTID_SummaryInformation;
2624 hr = S_OK;
2625 }
2626 else
2627 {
2628 ULONG bits;
2629 BYTE *fmtptr = (BYTE *)rfmtid - 1;
2630 const WCHAR *pstr = str;
2631
2632 memset(rfmtid, 0, sizeof(*rfmtid));
2633 for (bits = 0; bits < sizeof(FMTID) * BITS_PER_BYTE;
2634 bits += BITS_IN_CHARMASK)
2635 {
2636 ULONG bitsUsed = bits % BITS_PER_BYTE, bitsStored;
2637 WCHAR wc;
2638
2639 if (bitsUsed == 0)
2640 fmtptr++;
2641 wc = *++pstr - 'A';
2642 if (wc > NUM_ALPHA_CHARS)
2643 {
2644 wc += 'A' - 'a';
2645 if (wc > NUM_ALPHA_CHARS)
2646 {
2647 wc += 'a' - '0' + NUM_ALPHA_CHARS;
2648 if (wc > CHARMASK)
2649 {
2650 WARN("invalid character (%d)\n", *pstr);
2651 goto end;
2652 }
2653 }
2654 }
2655 *fmtptr |= wc << bitsUsed;
2656 bitsStored = min(BITS_PER_BYTE - bitsUsed, BITS_IN_CHARMASK);
2657 if (bitsStored < BITS_IN_CHARMASK)
2658 {
2659 wc >>= BITS_PER_BYTE - bitsUsed;
2660 if (bits + bitsStored == sizeof(FMTID) * BITS_PER_BYTE)
2661 {
2662 if (wc != 0)
2663 {
2664 WARN("extra bits\n");
2665 goto end;
2666 }
2667 break;
2668 }
2669 fmtptr++;
2670 *fmtptr |= (BYTE)wc;
2671 }
2672 }
2673 hr = S_OK;
2674 }
2675 end:
2676 return hr;
2677 }
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