sig_process_opts
if (sig_process_opts(opts, nopts, &hashalg, NULL, NULL) != 0)
if (sig_process_opts(opts, nopts, NULL, &verify_time,
if (sig_process_opts(opts, nopts, NULL, &verify_time, NULL) != 0)
if ((r = sig_process_opts(opts, nopts, NULL, NULL, NULL)) != 0)