SSL_AD_MISSING_EXTENSION
SSLfatal(s, SSL_AD_MISSING_EXTENSION, SSL_R_NO_SUITABLE_KEY_SHARE);
SSLfatal(s, sent ? SSL_AD_HANDSHAKE_FAILURE : SSL_AD_MISSING_EXTENSION,
SSLfatal(s, SSL_AD_MISSING_EXTENSION,
if (code == SSL_AD_MISSING_EXTENSION || code == SSL_AD_CERTIFICATE_REQUIRED)