if ((s->session->sess_cert != NULL) && (s->session->sess_cert->rsa_tmp != NULL)) rsa=s->session->sess_cert->rsa_tmp; else if ((s->cert != NULL) && (s->cert->rsa_tmp != NULL))
if ((s->cert != NULL) && (s->cert->rsa_tmp != NULL))
static int ssl3_get_client_key_exchange(SSL *s)	{	int i,al,ok;	long n;	unsigned long l;	unsigned char *p;#ifndef NO_RSA	RSA *rsa=NULL;	EVP_PKEY *pkey=NULL;#endif#ifndef NO_DH	BIGNUM *pub=NULL;	DH *dh_srvr;#endif	n=ssl3_get_message(s,		SSL3_ST_SR_KEY_EXCH_A,		SSL3_ST_SR_KEY_EXCH_B,		SSL3_MT_CLIENT_KEY_EXCHANGE,		400, /* ???? */		&ok);	if (!ok) return((int)n);	p=(unsigned char *)s->init_buf->data;	l=s->s3->tmp.new_cipher->algorithms;#ifndef NO_RSA	if (l & SSL_kRSA)		{		/* FIX THIS UP EAY EAY EAY EAY */		if (s->s3->tmp.use_rsa_tmp)			{			if ((s->session->sess_cert != NULL) &&				(s->session->sess_cert->rsa_tmp != NULL))				rsa=s->session->sess_cert->rsa_tmp;			else if ((s->cert != NULL) &&				(s->cert->rsa_tmp != NULL))				rsa=s->cert->rsa_tmp;			/* Don't do a callback because rsa_tmp should			 * be sent already */			if (rsa == NULL)				{				al=SSL_AD_HANDSHAKE_FAILURE;				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_PKEY);				goto f_err;				}			}		else			{			pkey=s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey;			if (	(pkey == NULL) ||				(pkey->type != EVP_PKEY_RSA) ||				(pkey->pkey.rsa == NULL))				{				al=SSL_AD_HANDSHAKE_FAILURE;				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_RSA_CERTIFICATE);				goto f_err;				}			rsa=pkey->pkey.rsa;			}		/* TLS */		if (s->version > SSL3_VERSION)			{			n2s(p,i);			if (n != i+2)				{				if (!(s->options & SSL_OP_TLS_D5_BUG))					{					SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG);					goto err;					}				else					p-=2;				}			else				n=i;			}		i=RSA_private_decrypt((int)n,p,p,rsa,RSA_PKCS1_PADDING);#if 1		/* If a bad decrypt, use a random master key */		if ((i != SSL_MAX_MASTER_KEY_LENGTH) ||			((p[0] != (s->client_version>>8)) ||			 (p[1] != (s->client_version & 0xff))))			{			int bad=1;			if ((i == SSL_MAX_MASTER_KEY_LENGTH) &&				(p[0] == (s->version>>8)) &&				(p[1] == 0))				{				if (s->options & SSL_OP_TLS_ROLLBACK_BUG)					bad=0;				}			if (bad)				{				p[0]=(s->version>>8);				p[1]=(s->version & 0xff);				RAND_bytes(&(p[2]),SSL_MAX_MASTER_KEY_LENGTH-2);				i=SSL_MAX_MASTER_KEY_LENGTH;				}			/* else, an SSLeay bug, ssl only server, tls client */			}#else		if (i != SSL_MAX_MASTER_KEY_LENGTH)			{			al=SSL_AD_DECODE_ERROR;			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);			goto f_err;			}		if ((p[0] != (s->version>>8)) || (p[1] != (s->version & 0xff)))			{			al=SSL_AD_DECODE_ERROR;			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_PROTOCOL_VERSION_NUMBER);			goto f_err;			}#endif		s->session->master_key_length=			s->method->ssl3_enc->generate_master_secret(s,				s->session->master_key,				p,i);		memset(p,0,i);		}	else#endif#ifndef NO_DH		if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))		{		n2s(p,i);		if (n != i+2)			{			if (!(s->options & SSL_OP_SSLEAY_080_CLIENT_DH_BUG))				{				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG);				goto err;				}			else				{				p-=2;				i=(int)n;				}			}		if (n == 0L) /* the parameters are in the cert */			{			al=SSL_AD_HANDSHAKE_FAILURE;			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_DECODE_DH_CERTS);			goto f_err;			}		else			{			if (s->s3->tmp.dh == NULL)				{				al=SSL_AD_HANDSHAKE_FAILURE;				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);				goto f_err;				}			else				dh_srvr=s->s3->tmp.dh;			}		pub=BN_bin2bn(p,i,NULL);		if (pub == NULL)			{			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BN_LIB);			goto err;			}		i=DH_compute_key(p,pub,dh_srvr);		if (i <= 0)			{			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);			goto err;			}		DH_free(s->s3->tmp.dh);		s->s3->tmp.dh=NULL;		BN_clear_free(pub);		pub=NULL;		s->session->master_key_length=			s->method->ssl3_enc->generate_master_secret(s,				s->session->master_key,p,i);		}	else#endif		{		al=SSL_AD_HANDSHAKE_FAILURE;		SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNKNOWN_CIPHER_TYPE);		goto f_err;		}	return(1);f_err:	ssl3_send_alert(s,SSL3_AL_FATAL,al);#if !defined(NO_DH) || !defined(NO_RSA)err:#endif	return(-1);	}