datum			T_DATUM
EVP_MD_CTX *		T_MD_CTX
EVP_CIPHER_CTX *	T_CIPHER_CTX
BIGNUM *		T_BIGNUM
SSL_METHOD *		T_SSL_METHOD
SSL_CTX *		T_SSL_CTX
SSL_CIPHER *		T_SSL_CIPHER
SSL *			T_SSL
BIO *			T_BIO
X509 *			T_X509

INPUT
T_DATUM
	$var.dptr=SvPV($arg,$var.dsize);
T_MD_CTX
	if (sv_derived_from($arg, \"OpenSSL::MD\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (EVP_MD_CTX *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::MD\")
T_CIPHER_CTX
	if (sv_derived_from($arg, \"OpenSSL::Cipher\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (EVP_CIPHER_CTX *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::Cipher\")
T_BIGNUM
	sv_to_BIGNUM(&($var),$arg,\"$var is not of type OpenSSL::MD, int or string\")
T_SSL_METHOD
	if (sv_derived_from($arg, \"OpenSSL::SSL::METHOD\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (SSL_METHOD *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::SSL::METHOD\")
T_SSL_CTX
	if (sv_derived_from($arg, \"OpenSSL::SSL::CTX\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (SSL_CTX *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::SSL::CTX\")
T_SSL_CIPHER
	if (sv_derived_from($arg, \"OpenSSL::SSL::CIPHER\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (SSL_CIPHER *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::SSL::CIPHER\")
T_SSL
	if (sv_derived_from($arg, \"OpenSSL::SSL\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (SSL *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::SSL\")
T_BIO
	if (sv_derived_from($arg, \"OpenSSL::BIO\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (BIO *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::BIO\")
T_X509
	if (sv_derived_from($arg, \"OpenSSL::X509\")) {
		IV tmp = SvIV((SV*)SvRV($arg));
		$var = (X509 *) tmp;
		}
	else
		croak(\"$var is not of type OpenSSL::X509\")
OUTPUT
T_DATUM
	sv_setpvn($arg,$var.dptr,$var.dsize);
T_MD_CTX
	sv_setref_pv($arg, \"OpenSSL::MD\", (void*)$var);
T_CIPHER_CTX
	sv_setref_pv($arg, \"OpenSSL::Cipher\", (void*)$var);
T_BIGNUM
	sv_setref_pv($arg, \"OpenSSL::BN\", (void*)$var);
T_SSL_METHOD
	sv_setref_pv($arg, \"OpenSSL::SSL::METHOD\", (void*)$var);
T_SSL_CTX
	sv_setref_pv($arg, \"OpenSSL::SSL::CTX\", (void*)$var);
T_SSL_CIPHER
	sv_setref_pv($arg, \"OpenSSL::SSL::CIPHER\", (void*)$var);
T_SSL
	sv_setref_pv($arg, \"OpenSSL::SSL\", (void*)$var);
T_BIO
	sv_setref_pv($arg, \"OpenSSL::BIO\", (void*)$var);
T_X509
	sv_setref_pv($arg, \"OpenSSL::X509\", (void*)$var);