prep_dir() expects buflen arg now.

src/sbbs3/scfg/scfgnode.c

@@ -159,7 +159,7 @@ If you want to abort the creation of this new node, hit  ESC .
 		free_node_cfg(&cfg);
 		savnode=0; }
 	strcpy(cfg.node_dir,cfg.node_path[i]);
-	prep_dir(cfg.ctrl_dir, cfg.node_dir);
+	prep_dir(cfg.ctrl_dir, cfg.node_dir, sizeof(cfg.node_dir));
 
 	uifc.pop("Reading NODE.CNF...");
 	read_node_cfg(&cfg,error);