35 #define CHECK_NULL(v, fn) \  argument
37 		v = fn; \
207 		if (cert->fn == NULL) {  in check_cmd_params()
228 				if (!new_keys && key->fn == NULL) {  in check_cmd_params()
395 			key->fn = strdup(optarg);  in main()
400 			cert->fn = strdup(optarg);  in main()
450 			ERROR("Error loading '%s'\n", keys[i].fn);  in main()
465 				ERROR("Error opening '%s'\n", keys[i].fn);  in main()
478 		if (cert->fn == NULL) {  in main()
576 		if (certs[i].x && certs[i].fn) {  in main()
577 			file = fopen(certs[i].fn, "w");  in main()
582 				ERROR("Cannot create file %s\n", certs[i].fn);  in main()