static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
	{
	unsigned char *buffer=NULL;
	const char *ecstr;
	size_t	buf_len=0, i;
	int     ret=0, reason=ERR_R_BIO_LIB;
	BIGNUM  *pub_key=NULL, *order=NULL;
	BN_CTX  *ctx=NULL;
	const EC_GROUP *group;
	const EC_POINT *public_key;
	const BIGNUM *priv_key;
 
	if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
		{
		reason = ERR_R_PASSED_NULL_PARAMETER;
		goto err;
		}

	ctx = BN_CTX_new();
	if (ctx == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (ktype > 0)
		{
		public_key = EC_KEY_get0_public_key(x);
		if (public_key != NULL)
			{
			if ((pub_key = EC_POINT_point2bn(group, public_key,
				EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
				{
				reason = ERR_R_EC_LIB;
				goto err;
				}
			buf_len = (size_t)BN_num_bytes(pub_key);
			}
		}

	if (ktype == 2)
		{
		priv_key = EC_KEY_get0_private_key(x);
		if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len)
			buf_len = i;
		}
	else
		priv_key = NULL;

	if (ktype > 0)
		{
		buf_len += 10;
		if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
			{
			reason = ERR_R_MALLOC_FAILURE;
			goto err;
			}
		}
	if (ktype == 2)
		ecstr = "Private-Key";
	else if (ktype == 1)
		ecstr = "Public-Key";
	else
		ecstr = "ECDSA-Parameters";

	if (!BIO_indent(bp, off, 128))
		goto err;
	if ((order = BN_new()) == NULL)
		goto err;
	if (!EC_GROUP_get_order(group, order, NULL))
		goto err;
	if (BIO_printf(bp, "%s: (%d bit)\n", ecstr,
		BN_num_bits(order)) <= 0) goto err;
  
	if ((priv_key != NULL) && !ASN1_bn_print(bp, "priv:", priv_key, 
		buffer, off))
		goto err;
	if ((pub_key != NULL) && !ASN1_bn_print(bp, "pub: ", pub_key,
		buffer, off))
		goto err;
	if (!ECPKParameters_print(bp, group, off))
		goto err;
	ret=1;
err:
	if (!ret)
 		ECerr(EC_F_DO_EC_KEY_PRINT, reason);
	if (pub_key) 
		BN_free(pub_key);
	if (order)
		BN_free(order);
	if (ctx)
		BN_CTX_free(ctx);
	if (buffer != NULL)
		OPENSSL_free(buffer);
	return(ret);
	}