case 'Q':
                    cp = NULL;
                    if (strcmp(optarg, "cipher") == 0)
                            cp = cipher_alg_list('n', 0);
                    /* deleted other options... */
                    if (cp == NULL)
                            fatal("Unsupported query "%s"", optarg);
                    printf("%sn", cp);
                    free(cp);
                    exit(0);
                    break;