FBNIC_SN_STR_LEN
err = snprintf(serial, FBNIC_SN_STR_LEN, "%8phD", dsn);
char commit_name[FBNIC_SN_STR_LEN];
snprintf(commit_name, FBNIC_SN_STR_LEN, "%s.commit", ver_name);
char commit_name[FBNIC_SN_STR_LEN];
snprintf(commit_name, FBNIC_SN_STR_LEN, "%s.commit", ver_name);
unsigned char serial[FBNIC_SN_STR_LEN];