diff -urN davfs-0.2.4.org/lib/libdav.c davfs-0.2.4/lib/libdav.c
--- davfs-0.2.4.org/lib/libdav.c	Sun Mar 24 14:20:41 2002
+++ davfs-0.2.4/lib/libdav.c	Sun Mar 24 14:45:12 2002
@@ -508,6 +508,9 @@
 	    ssl_mode = 1;
     }
 
+    if(!dc->ns)
+	return NULL;
+    
     if(ssl_mode) {
 #ifdef ENABLE_SSL    
         sock_make_secure(dc->ns, NULL);