[fireball] 14968: NtOpenKey modified to correctly behave when wrong input params are given (according to WINE tests).

NtOpenKey modified to correctly behave when wrong input params are given
(according to WINE tests).
Modified: trunk/reactos/ntoskrnl/cm/ntfunc.c
  _____  

Modified: trunk/reactos/ntoskrnl/cm/ntfunc.c
--- trunk/reactos/ntoskrnl/cm/ntfunc.c	2005-05-04 13:28:34 UTC (rev
14967)
+++ trunk/reactos/ntoskrnl/cm/ntfunc.c	2005-05-04 15:27:05 UTC (rev
14968)
@@ -1115,6 +1115,10 @@

 	 ObjectAttributes,
 	 ObjectAttributes ? ObjectAttributes->ObjectName : NULL);
 
+  /* Check place for result handle, if it's null - return immediately
*/
+  if (KeyHandle == NULL)
+	  return(STATUS_INVALID_PARAMETER);
+
   PreviousMode = ExGetPreviousMode();
 
   if(PreviousMode != KernelMode)
@@ -1137,6 +1141,10 @@
     }
   }
 
+  /* WINE checks for the length also */
+  /*if (ObjectAttributes->ObjectName->Length > MAX_NAME_LENGTH)
+	  return(STATUS_BUFFER_OVERFLOW);*/
+
   RemainingPath.Buffer = NULL;
   Status = ObFindObject(ObjectAttributes,
 			&Object,
@@ -1144,7 +1152,10 @@
 			CmiKeyType);
   if (!NT_SUCCESS(Status))
     {
-      return(Status);
+      DPRINT("ObFindObject() returned 0x%08lx\n", Status);
+	  Status = STATUS_INVALID_HANDLE; /* Because ObFindObject
returns STATUS_UNSUCCESSFUL */
+	  hKey = *KeyHandle; /* Preserve hkResult value */
+	  goto openkey_cleanup;
     }
 
   VERIFY_KEY_OBJECT((PKEY_OBJECT) Object);
@@ -1155,7 +1166,9 @@
     {
       ObDereferenceObject(Object);
       RtlFreeUnicodeString(&RemainingPath);
-      return STATUS_OBJECT_NAME_NOT_FOUND;
+      Status = STATUS_OBJECT_NAME_NOT_FOUND;
+      hKey = NULL;
+	  goto openkey_cleanup;
     }
 
   RtlFreeUnicodeString(&RemainingPath);
@@ -1164,7 +1177,9 @@
   if (((PKEY_OBJECT)Object)->Flags & KO_MARKED_FOR_DELETE)
     {
       ObDereferenceObject(Object);
-      return(STATUS_UNSUCCESSFUL);
+	  Status = STATUS_UNSUCCESSFUL;
+      hKey = NULL;
+	  goto openkey_cleanup;
     }
 
   Status = ObCreateHandle(PsGetCurrentProcess(),
@@ -1175,10 +1190,9 @@
   ObDereferenceObject(Object);
 
   if (!NT_SUCCESS(Status))
-    {
-      return(Status);
-    }
+     hKey = NULL;
 
+openkey_cleanup:
   _SEH_TRY
   {
     *KeyHandle = hKey;