diff -ru cdp-0.33.old/cdp.c cdp-0.33/cdp.c
--- cdp-0.33.old/cdp.c	Fri Sep 17 00:20:00 1999
+++ cdp-0.33/cdp.c	Fri Sep 17 00:32:42 1999
@@ -391,11 +391,12 @@
 
                 case 'q' :
                 case 'Q' :
+                case '0' :
                 default:
                     break;
             }
         }
-    }  while  ( key != 'q'  &&  key != 'Q' );
+    }  while  ( key != 'q'  &&  key != 'Q' && key != '0' );
     displayTTYResetColor( &dispInfo );
 }
 
diff -ru cdp-0.33.old/getline.c cdp-0.33/getline.c
--- cdp-0.33.old/getline.c	Fri Nov 10 01:10:42 1995
+++ cdp-0.33/getline.c	Fri Sep 17 00:27:40 1999
@@ -160,6 +160,8 @@
     if   ( info.pw == NULL ) 
         return   GETLINE_ERR;
 
+    if (!lpszDef) 
+	  return GETLINE_ERR;
     info.text = malloc( strSize + strlen( lpszDef ) + 256 );
     if  ( info.text == NULL )
         return   GETLINE_ERR;