next_serial
static ASN1_INTEGER *next_serial(const char *serialfile);
ASN1_INTEGER *serial = next_serial(serial_file);
int next_serial;
.opt.order = &x509_config.next_serial,
if (!x509_config.noout || x509_config.text || x509_config.next_serial) {
} else if (x509_config.next_serial == i) {