[cmihail] 53641: [shell32.dll] - Make sure the ParseDisplayName functions make the ppidle parameter NULL whenever that's possible. Scores a wine test. Spotted by Victor Martinez.

Author: cmihail
Date: Thu Sep  8 14:07:02 2011
New Revision: 53641

URL: http://svn.reactos.org/svn/reactos?rev=53641&view=rev
Log:
[shell32.dll]
- Make sure the ParseDisplayName functions make the ppidle parameter NULL whenever
that's possible. Scores a wine test. Spotted by Victor Martinez.

Modified:
    branches/shell32_new-bringup/dll/win32/shell32/shfldr_desktop.cpp
    branches/shell32_new-bringup/dll/win32/shell32/shfldr_fs.cpp

Modified: branches/shell32_new-bringup/dll/win32/shell32/shfldr_desktop.cpp
URL:
http://svn.reactos.org/svn/reactos/branches/shell32_new-bringup/dll/win32/s…
==============================================================================
--- branches/shell32_new-bringup/dll/win32/shell32/shfldr_desktop.cpp [iso-8859-1]
(original)
+++ branches/shell32_new-bringup/dll/win32/shell32/shfldr_desktop.cpp [iso-8859-1] Thu Sep
 8 14:07:02 2011
@@ -304,10 +304,16 @@
            this, hwndOwner, pbc, lpszDisplayName, debugstr_w(lpszDisplayName),
            pchEaten, ppidl, pdwAttributes);
 
-    if (!lpszDisplayName || !ppidl)
+    if (!ppidl)
         return E_INVALIDARG;
 
-    *ppidl = 0;
+    if (!lpszDisplayName)
+    {
+        *ppidl = NULL;
+        return E_INVALIDARG;
+    }
+
+    *ppidl = NULL;
 
     if (pchEaten)
         *pchEaten = 0;        /* strange but like the original */
@@ -333,6 +339,7 @@
     else if( (pidlTemp = SHELL32_CreatePidlFromBindCtx(pbc, lpszDisplayName)) )
     {
         *ppidl = pidlTemp;
+        DbgPrint("[shell32, CDesktopFolder::ParseDisplayName] 1 *ppidl =
0x%x\n", *ppidl);
         return S_OK;
     }
     else
@@ -379,7 +386,10 @@
         }
     }
 
-    *ppidl = pidlTemp;
+    if (SUCCEEDED(hr))
+        *ppidl = pidlTemp;
+    else
+        *ppidl = NULL;
 
     TRACE ("(%p)->(-- ret=0x%08x)\n", this, hr);
 

Modified: branches/shell32_new-bringup/dll/win32/shell32/shfldr_fs.cpp
URL:
http://svn.reactos.org/svn/reactos/branches/shell32_new-bringup/dll/win32/s…
==============================================================================
--- branches/shell32_new-bringup/dll/win32/shell32/shfldr_fs.cpp [iso-8859-1] (original)
+++ branches/shell32_new-bringup/dll/win32/shell32/shfldr_fs.cpp [iso-8859-1] Thu Sep  8
14:07:02 2011
@@ -188,8 +188,16 @@
      this, hwndOwner, pbc, lpszDisplayName, debugstr_w (lpszDisplayName),
      pchEaten, ppidl, pdwAttributes);
 
-    if (!lpszDisplayName || !ppidl)
+    if (!ppidl)
         return E_INVALIDARG;
+
+    if (!lpszDisplayName)
+    {
+        *ppidl = NULL;
+        return E_INVALIDARG;
+    }
+
+    *ppidl = NULL;
 
     if (pchEaten)
         *pchEaten = 0; /* strange but like the original */