if (ss->useSecurity && ss->sec.peerCert) {
if (ss->opt.useSecurity && ss->sec.peerCert) {
SSL_PeerCertificate(PRFileDesc *fd){    sslSocket *ss;    ss = ssl_FindSocket(fd);    if (!ss) {	SSL_DBG(("%d: SSL[%d]: bad socket in PeerCertificate",		 SSL_GETPID(), fd));	return 0;    }    if (ss->useSecurity && ss->sec.peerCert) {	return CERT_DupCertificate(ss->sec.peerCert);    }    return 0;}