Index: /trunk/psLib/src/types/psArguments.c
===================================================================
--- /trunk/psLib/src/types/psArguments.c	(revision 7032)
+++ /trunk/psLib/src/types/psArguments.c	(revision 7033)
@@ -7,6 +7,6 @@
  *  @author David Robbins, MHPCC
  *
- *  @version $Revision: 1.3 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-05-02 02:01:53 $
+ *  @version $Revision: 1.4 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-05-02 02:03:48 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -311,5 +311,5 @@
         return arg->data.B ? 4 : 5;
     case PS_DATA_STRING:
-        return strlen(arg->data.V);
+        return arg->data.V ? strlen(arg->data.V) : 0;
     default:
         psAbort(__func__, "Argument type (%x) is not supported.\n", arg->type);