r20574 - gnucash/branches/2.4/src/engine - [20570] Bug #647945: Add sanity check to hopefully fix crash when running custom reports BP

[Christian Stimming]

Author: cstim
Date: 2011-04-19 16:22:05 -0400 (Tue, 19 Apr 2011)
New Revision: 20574
Trac: http://svn.gnucash.org/trac/changeset/20574

Modified:
   gnucash/branches/2.4/src/engine/engine-helpers.c
Log:
[20570] Bug #647945: Add sanity check to hopefully fix crash when running custom reports BP

Modified: gnucash/branches/2.4/src/engine/engine-helpers.c
===================================================================
--- gnucash/branches/2.4/src/engine/engine-helpers.c	2011-04-19 20:21:55 UTC (rev 20573)
+++ gnucash/branches/2.4/src/engine/engine-helpers.c	2011-04-19 20:22:05 UTC (rev 20574)
@@ -142,7 +142,8 @@
     GncGUID guid;
     const gchar * str;
 
-    if (GUID_ENCODING_LENGTH != scm_c_string_length (guid_scm))
+    if (!scm_is_string(guid_scm)
+        || (GUID_ENCODING_LENGTH != scm_c_string_length (guid_scm)))
     {
         return *guid_null();
     }