[dquintana] 64646: [SHELL32] * Fix another comment. * Fix a cch/cb bug. * Make use of the DSA_DestroyCallback function instead of messing around with the internals of the DSA. CORE-8564

Author: dquintana
Date: Thu Oct  9 12:54:29 2014
New Revision: 64646

URL: http://svn.reactos.org/svn/reactos?rev=64646&view=rev
Log:
[SHELL32]
* Fix another comment.
* Fix a cch/cb bug.
* Make use of the DSA_DestroyCallback function instead of messing around with the
internals of the DSA.
CORE-8564

Modified:
    branches/shell-experiments/dll/win32/shell32/shlfileop.cpp

Modified: branches/shell-experiments/dll/win32/shell32/shlfileop.cpp
URL:
http://svn.reactos.org/svn/reactos/branches/shell-experiments/dll/win32/she…
==============================================================================
--- branches/shell-experiments/dll/win32/shell32/shlfileop.cpp	[iso-8859-1] (original)
+++ branches/shell-experiments/dll/win32/shell32/shlfileop.cpp	[iso-8859-1] Thu Oct  9
12:54:29 2014
@@ -970,12 +970,12 @@
         sizeA = lstrlenA(strSrc) + 1;
     }
 
-    // Measure the
+    // Measure the needed allocation size.
     int sizeW = MultiByteToWideChar(CP_ACP, 0, strSrc, sizeA, NULL, 0);
     if (!sizeW)
         return GetLastError();
 
-    PWSTR strDest = (PWSTR) HeapAlloc(GetProcessHeap(), 0, sizeW);
+    PWSTR strDest = (PWSTR) HeapAlloc(GetProcessHeap(), 0, sizeW * sizeof(WCHAR));
     if (!strDest)
         return ERROR_OUTOFMEMORY;
 
@@ -1739,7 +1739,16 @@
     return ret;
 }
 
-#define SHDSA_GetItemCount(hdsa) (*(int*)(hdsa))
+// Used by SHFreeNameMappings
+static int CALLBACK _DestroyCallback(void *p, void *pData)
+{
+    LPSHNAMEMAPPINGW lp = (SHNAMEMAPPINGW *)p;
+
+    SHFree(lp->pszOldPath);
+    SHFree(lp->pszNewPath);
+
+    return TRUE;
+}
 
 /*************************************************************************
  * SHFreeNameMappings      [shell32.246]
@@ -1757,16 +1766,7 @@
 {
     if (hNameMapping)
     {
-        int i = SHDSA_GetItemCount((HDSA)hNameMapping) - 1;
-
-        for (; i>= 0; i--)
-        {
-            LPSHNAMEMAPPINGW lp = (SHNAMEMAPPINGW *)DSA_GetItemPtr((HDSA)hNameMapping,
i);
-
-            SHFree(lp->pszOldPath);
-            SHFree(lp->pszNewPath);
-        }
-        DSA_Destroy((HDSA)hNameMapping);
+        DSA_DestroyCallback((HDSA) hNameMapping, _DestroyCallback, NULL);
     }
 }