SSL_CTX_set_tlsext_ticket_key_cb
if (!SSL_CTX_set_tlsext_ticket_key_cb(*ssl_ctx,
if(SSL_CTX_set_tlsext_ticket_key_cb(sslctx, tls_session_ticket_key_cb) == 0) {
if(SSL_CTX_set_tlsext_ticket_key_cb(sslctx, tls_session_ticket_key_cb) == 0) {