der_len           609 ext/openssl/xp_ssl.c 		int der_len;
der_len           611 ext/openssl/xp_ssl.c 		der_len = i2d_X509(x509_store_ctx->cert, &der_buf);
der_len           612 ext/openssl/xp_ssl.c 		if (der_len < 0) {
der_len           624 ext/openssl/xp_ssl.c 		cert_ctx = CertCreateCertificateContext(X509_ASN_ENCODING, der_buf, der_len);