TCP_FASTOPEN
#if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
#if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
#if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
#define OSSL_TFO_SERVER_SOCKOPT TCP_FASTOPEN
#define OSSL_TFO_SERVER_SOCKOPT TCP_FASTOPEN
#define OSSL_TFO_CLIENT_SOCKOPT TCP_FASTOPEN
#define OSSL_TFO_SERVER_SOCKOPT TCP_FASTOPEN
#define OSSL_TFO_SERVER_SOCKOPT TCP_FASTOPEN
#if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
case TCP_FASTOPEN: {
case TCP_FASTOPEN: