const char* oidc_util_get_client_cert_fingerprint(request_rec *r) {
	const char *fingerprint = NULL;

	if (r->subprocess_env == NULL)
		goto end;

	fingerprint = apr_table_get(r->subprocess_env,
			OIDC_TB_CFG_FINGERPRINT_ENV_VAR);
	if (fingerprint == NULL) {
		oidc_debug(r, "no %s environment variable found",
				OIDC_TB_CFG_FINGERPRINT_ENV_VAR);
		goto end;
	}

end:

	return fingerprint;
}
const char* oidc_util_get_client_cert_fingerprint(request_rec *r) {
	const char *fingerprint = NULL;

	if (r->subprocess_env == NULL)
		goto end;

	fingerprint = apr_table_get(r->subprocess_env,
			OIDC_TB_CFG_FINGERPRINT_ENV_VAR);
	if (fingerprint == NULL) {
		oidc_debug(r, "no %s environment variable found",
				OIDC_TB_CFG_FINGERPRINT_ENV_VAR);
		goto end;
	}

end:

	return fingerprint;
}