SRV_OFFER_TLS
if (!bitset(SRV_OFFER_TLS, features))
bitset(SRV_OFFER_TLS, features))
{ 'S', SRV_OFFER_TLS },
| (bitnset(D_NOTLS, d_flags) ? SRV_NONE : SRV_OFFER_TLS)
if (tls_ok_srv && bitset(SRV_OFFER_TLS, features) &&