ReactOS 0.4.15-dev-5666-gc548b97
clist.c File Reference
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "objbase.h"
#include "shlobj.h"
#include "wine/debug.h"
Include dependency graph for clist.c:

Go to the source code of this file.

Macros

#define COBJMACROS
 
#define CLIST_ID_CONTAINER   (~0U)
 

Functions

 WINE_DEFAULT_DEBUG_CHANNEL (shell)
 
static LPDATABLOCK_HEADER NextItem (LPDBLIST lpList)
 
BOOL WINAPI SHAddDataBlock (LPDBLIST *lppList, const DATABLOCK_HEADER *lpNewItem)
 
HRESULT WINAPI SHWriteDataBlockList (IStream *lpStream, LPDBLIST lpList)
 
HRESULT WINAPI SHReadDataBlockList (IStream *lpStream, LPDBLIST *lppList)
 
VOID WINAPI SHFreeDataBlockList (LPDBLIST lpList)
 
BOOL WINAPI SHRemoveDataBlock (LPDBLIST *lppList, DWORD dwSignature)
 
DATABLOCK_HEADER *WINAPI SHFindDataBlock (LPDBLIST lpList, DWORD dwSignature)
 

Macro Definition Documentation

◆ CLIST_ID_CONTAINER

#define CLIST_ID_CONTAINER   (~0U)

Definition at line 35 of file clist.c.

◆ COBJMACROS

#define COBJMACROS

Definition at line 23 of file clist.c.

Function Documentation

◆ NextItem()

static LPDATABLOCK_HEADER NextItem ( LPDBLIST  lpList)
inlinestatic

Definition at line 42 of file clist.c.

43{
44 char* address = (char*)lpList;
45 address += lpList->cbSize;
47}
GLuint address
Definition: glext.h:9393

Referenced by ClearCheckItems(), FreePrincipalsList(), InternalGetNextAttributeListItem(), SHAddDataBlock(), SHFindDataBlock(), SHRemoveDataBlock(), and SHWriteDataBlockList().

◆ SHAddDataBlock()

BOOL WINAPI SHAddDataBlock ( LPDBLIST lppList,
const DATABLOCK_HEADER lpNewItem 
)

Definition at line 68 of file clist.c.

69{
70 LPDATABLOCK_HEADER lpInsertAt = NULL;
71 ULONG ulSize;
72
73 TRACE("(%p,%p)\n", lppList, lpNewItem);
74
75 if(!lppList || !lpNewItem)
76 return FALSE;
77
78 if (lpNewItem->cbSize < sizeof(DATABLOCK_HEADER) ||
79 lpNewItem->dwSignature == CLIST_ID_CONTAINER)
80 return FALSE;
81
82 ulSize = lpNewItem->cbSize;
83
84 if(ulSize & 0x3)
85 {
86 /* Tune size to a ULONG boundary, add space for container element */
87 ulSize = ((ulSize + 0x3) & 0xFFFFFFFC) + sizeof(DATABLOCK_HEADER);
88 TRACE("Creating container item, new size = %d\n", ulSize);
89 }
90
91 if(!*lppList)
92 {
93 /* An empty list. Allocate space for terminal ulSize also */
94 *lppList = LocalAlloc(LMEM_ZEROINIT, ulSize + sizeof(ULONG));
95 lpInsertAt = *lppList;
96 }
97 else
98 {
99 /* Append to the end of the list */
100 ULONG ulTotalSize = 0;
101 LPDATABLOCK_HEADER lpIter = *lppList;
102
103 /* Iterate to the end of the list, calculating the total size */
104 while (lpIter->cbSize)
105 {
106 ulTotalSize += lpIter->cbSize;
107 lpIter = NextItem(lpIter);
108 }
109
110 /* Increase the size of the list */
111 lpIter = LocalReAlloc(*lppList, ulTotalSize + ulSize+sizeof(ULONG),
113 if(lpIter)
114 {
115 *lppList = lpIter;
116 lpInsertAt = (LPDATABLOCK_HEADER)((char*)lpIter + ulTotalSize); /* At end */
117 }
118 }
119
120 if(lpInsertAt)
121 {
122 /* Copy in the new item */
123 LPDATABLOCK_HEADER lpDest = lpInsertAt;
124
125 if(ulSize != lpNewItem->cbSize)
126 {
127 lpInsertAt->cbSize = ulSize;
128 lpInsertAt->dwSignature = CLIST_ID_CONTAINER;
129 lpDest++;
130 }
131 memcpy(lpDest, lpNewItem, lpNewItem->cbSize);
132
133 /* Terminate the list */
134 lpInsertAt = NextItem(lpInsertAt);
135 lpInsertAt->cbSize = 0;
136
137 return TRUE;
138 }
139 return FALSE;
140}
#define NULL
Definition: types.h:112
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
static LPDATABLOCK_HEADER NextItem(LPDBLIST lpList)
Definition: clist.c:42
#define CLIST_ID_CONTAINER
Definition: clist.c:35
HLOCAL NTAPI LocalReAlloc(HLOCAL hMem, SIZE_T dwBytes, UINT uFlags)
Definition: heapmem.c:1608
HLOCAL NTAPI LocalAlloc(UINT uFlags, SIZE_T dwBytes)
Definition: heapmem.c:1373
unsigned int ULONG
Definition: retypes.h:1
#define memcpy(s1, s2, n)
Definition: mkisofs.h:878
struct tagDATABLOCKHEADER * LPDATABLOCK_HEADER
struct tagDATABLOCKHEADER DATABLOCK_HEADER
#define TRACE(s)
Definition: solgame.cpp:4
#define LMEM_MOVEABLE
Definition: winbase.h:369
#define LMEM_ZEROINIT
Definition: winbase.h:375

Referenced by CShellLink::AddDataBlock(), and SHReadDataBlockList().

◆ SHFindDataBlock()

DATABLOCK_HEADER *WINAPI SHFindDataBlock ( LPDBLIST  lpList,
DWORD  dwSignature 
)

Definition at line 424 of file clist.c.

425{
426 TRACE("(%p,%d)\n", lpList, dwSignature);
427
428 if(lpList)
429 {
430 while(lpList->cbSize)
431 {
432 if(lpList->dwSignature == dwSignature)
433 return lpList; /* Matched */
434 else if(lpList->dwSignature == CLIST_ID_CONTAINER && lpList[1].dwSignature == dwSignature)
435 return lpList + 1; /* Contained item matches */
436
437 lpList = NextItem(lpList);
438 }
439 }
440 return NULL;
441}

Referenced by CShellLink::CopyDataBlock(), CShellLink::GetAdvertiseInfo(), CShellLink::GetIconLocation(), CShellLink::GetPath(), CShellLink::SetIconLocation(), CShellLink::SetPath(), and CShellLink::WriteAdvertiseInfo().

◆ SHFreeDataBlockList()

VOID WINAPI SHFreeDataBlockList ( LPDBLIST  lpList)

Definition at line 331 of file clist.c.

332{
333 TRACE("(%p)\n", lpList);
334
335 if (lpList)
336 LocalFree(lpList);
337}
HLOCAL NTAPI LocalFree(HLOCAL hMem)
Definition: heapmem.c:1577

Referenced by CShellLink::Reset(), and CShellLink::~CShellLink().

◆ SHReadDataBlockList()

HRESULT WINAPI SHReadDataBlockList ( IStream lpStream,
LPDBLIST lppList 
)

Definition at line 235 of file clist.c.

236{
237 DATABLOCK_HEADER bBuff[128]; /* Temporary storage for new list item */
238 ULONG ulBuffSize = sizeof(bBuff);
239 LPDATABLOCK_HEADER pItem = bBuff;
240 ULONG ulRead, ulSize;
241 HRESULT hRet = S_OK;
242
243 TRACE("(%p,%p)\n", lpStream, lppList);
244
245 if(*lppList)
246 {
247 /* Free any existing list */
248 LocalFree(*lppList);
249 *lppList = NULL;
250 }
251
252 do
253 {
254 /* Read the size of the next item */
255 hRet = IStream_Read(lpStream, &ulSize,sizeof(ulSize),&ulRead);
256
257 if(FAILED(hRet) || ulRead != sizeof(ulSize) || !ulSize)
258 break; /* Read failed or read zero size (the end of the list) */
259
260 if(ulSize > 0xFFFF)
261 {
262 LARGE_INTEGER liZero;
263 ULARGE_INTEGER ulPos;
264
265 liZero.QuadPart = 0;
266
267 /* Back the stream up; this object is too big for the list */
268 if(SUCCEEDED(IStream_Seek(lpStream, liZero, STREAM_SEEK_CUR, &ulPos)))
269 {
270 liZero.QuadPart = ulPos.QuadPart - sizeof(ULONG);
271 IStream_Seek(lpStream, liZero, STREAM_SEEK_SET, NULL);
272 }
273 break;
274 }
275 else if (ulSize >= sizeof(DATABLOCK_HEADER))
276 {
277 /* Add this new item to the list */
278 if(ulSize > ulBuffSize)
279 {
280 /* We need more buffer space, allocate it */
281 LPDATABLOCK_HEADER lpTemp;
282
283 if (pItem == bBuff)
284 lpTemp = LocalAlloc(LMEM_ZEROINIT, ulSize);
285 else
286 lpTemp = LocalReAlloc(pItem, ulSize, LMEM_ZEROINIT|LMEM_MOVEABLE);
287
288 if(!lpTemp)
289 {
290 hRet = E_OUTOFMEMORY;
291 break;
292 }
293 ulBuffSize = ulSize;
294 pItem = lpTemp;
295 }
296
297 pItem->cbSize = ulSize;
298 ulSize -= sizeof(pItem->cbSize); /* already read this member */
299
300 /* Read the item Id and data */
301 hRet = IStream_Read(lpStream, &pItem->dwSignature, ulSize, &ulRead);
302
303 if(FAILED(hRet) || ulRead != ulSize)
304 break;
305
306 SHAddDataBlock(lppList, pItem); /* Insert Item */
307 }
308 } while(1);
309
310 /* If we allocated space, free it */
311 if(pItem != bBuff)
312 LocalFree(pItem);
313
314 return hRet;
315}
#define E_OUTOFMEMORY
Definition: ddrawi.h:100
BOOL WINAPI SHAddDataBlock(LPDBLIST *lppList, const DATABLOCK_HEADER *lpNewItem)
Definition: clist.c:68
#define S_OK
Definition: intsafe.h:52
#define SUCCEEDED(hr)
Definition: intsafe.h:50
#define FAILED(hr)
Definition: intsafe.h:51
ULONGLONG QuadPart
Definition: ms-dtyp.idl:185
LONGLONG QuadPart
Definition: typedefs.h:114

Referenced by CShellLink::Load().

◆ SHRemoveDataBlock()

BOOL WINAPI SHRemoveDataBlock ( LPDBLIST lppList,
DWORD  dwSignature 
)

Definition at line 355 of file clist.c.

356{
357 LPDATABLOCK_HEADER lpList = NULL;
358 LPDATABLOCK_HEADER lpItem = NULL;
359 LPDATABLOCK_HEADER lpNext;
360 ULONG ulNewSize;
361
362 TRACE("(%p,%d)\n", lppList, dwSignature);
363
364 if(lppList && (lpList = *lppList))
365 {
366 /* Search for item in list */
367 while (lpList->cbSize)
368 {
369 if(lpList->dwSignature == dwSignature ||
370 (lpList->dwSignature == CLIST_ID_CONTAINER && lpList[1].dwSignature == dwSignature))
371 {
372 lpItem = lpList; /* Found */
373 break;
374 }
375 lpList = NextItem(lpList);
376 }
377 }
378
379 if(!lpItem)
380 return FALSE;
381
382 lpList = lpNext = NextItem(lpItem);
383
384 /* Locate the end of the list */
385 while (lpList->cbSize)
386 lpList = NextItem(lpList);
387
388 /* Resize the list */
389 ulNewSize = LocalSize(*lppList) - lpItem->cbSize;
390
391 /* Copy following elements over lpItem */
392 memmove(lpItem, lpNext, (char *)lpList - (char *)lpNext + sizeof(ULONG));
393
394 if(ulNewSize <= sizeof(ULONG))
395 {
396 LocalFree(*lppList);
397 *lppList = NULL; /* Removed the last element */
398 }
399 else
400 {
401 lpList = LocalReAlloc(*lppList, ulNewSize, LMEM_ZEROINIT|LMEM_MOVEABLE);
402 if(lpList)
403 *lppList = lpList;
404 }
405 return TRUE;
406}
SIZE_T NTAPI LocalSize(HLOCAL hMem)
Definition: heapmem.c:1777
#define memmove(s1, s2, n)
Definition: mkisofs.h:881

Referenced by CShellLink::RemoveDataBlock().

◆ SHWriteDataBlockList()

HRESULT WINAPI SHWriteDataBlockList ( IStream lpStream,
LPDBLIST  lpList 
)

Definition at line 179 of file clist.c.

180{
181 ULONG ulSize;
182 HRESULT hRet = S_OK;
183
184 TRACE("(%p,%p)\n", lpStream, lpList);
185
186 if(lpList)
187 {
188 while (lpList->cbSize)
189 {
190 LPDATABLOCK_HEADER lpItem = lpList;
191
192 if(lpList->dwSignature == CLIST_ID_CONTAINER)
193 lpItem++;
194
195 hRet = IStream_Write(lpStream,lpItem,lpItem->cbSize,&ulSize);
196 if (FAILED(hRet))
197 return hRet;
198
199 if(lpItem->cbSize != ulSize)
200 return STG_E_MEDIUMFULL;
201
202 lpList = NextItem(lpList);
203 }
204 }
205
206 if(SUCCEEDED(hRet))
207 {
208 ULONG ulDummy;
209 ulSize = 0;
210
211 /* Write a terminating list entry with zero size */
212 hRet = IStream_Write(lpStream, &ulSize,sizeof(ulSize),&ulDummy);
213 }
214
215 return hRet;
216}
#define STG_E_MEDIUMFULL
Definition: winerror.h:2581

Referenced by CShellLink::Save().

◆ WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL ( shell  )