[Iup-users] CID 259217 (#1 of 1): Dereference null return value (NULL_RETURNS)4. dereference: Dereferencing a null pointer cbDragDataSize.

[Ranier VF]

Hi,
Fix iupwin_dragdrop.c:
--- \dll\iup\a\src\win\iupwin_dragdrop.c        Wed Apr 24 17:12:36 2019
+++ iupwin_dragdrop.c   Sat May 25 09:34:29 2019
@@ -391,7 +391,7 @@
 {
   IFns cbDragDataSize;
   IFnsVi cbDragData;
-  int size;
+  int size = 0;
   void *pData;
   TCHAR type[256];
 
@@ -405,7 +405,8 @@
   winGetClipboardFormatName(pFormatEtc->cfFormat, type, 256);
 
   cbDragDataSize = (IFns)IupGetCallback(pThis->ih, "DRAGDATASIZE_CB");
-  size = cbDragDataSize(pThis->ih, iupwinStrFromSystem(type));
+  if (cbDragDataSize)
+     size = cbDragDataSize(pThis->ih, iupwinStrFromSystem(type));
   if (size <= 0)
     return STG_E_MEDIUMFULL;
 
Best regards,
Ranier Vilela

iupwin_dragdrop.c.patch
Description: iupwin_dragdrop.c.patch

_______________________________________________
Iup-users mailing list
Iup-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/iup-users