Index: ratpoison-1.4.0.dfsg/src/events.c
===================================================================
--- ratpoison-1.4.0.dfsg.orig/src/events.c	2006-05-21 17:20:07.020354510 +0200
+++ ratpoison-1.4.0.dfsg/src/events.c	2006-05-21 17:24:32.629834052 +0200
@@ -565,7 +565,7 @@
 
       /* notify the client of any text that was returned by the
          command. */
-      if (cmd_ret->output)
+      if (cmd_ret && cmd_ret->output)
         result = xsprintf ("%c%s", cmd_ret->success ? '1':'0', cmd_ret->output);
       else
         result = NULL;
Index: ratpoison-1.4.0.dfsg/src/actions.c
===================================================================
--- ratpoison-1.4.0.dfsg.orig/src/actions.c	2006-05-21 17:20:07.063346820 +0200
+++ ratpoison-1.4.0.dfsg/src/actions.c	2006-05-21 17:35:26.030937152 +0200
@@ -783,7 +783,7 @@
 void
 cmdret_free (cmdret *ret)
 {
-  if (ret->output)
+  if (ret)
     free (ret->output);
   free (ret);
 }