SSL_CLIENT_HELLO_CB
#define SSL_want_client_hello_cb(s) (SSL_want(s) == SSL_CLIENT_HELLO_CB)
|| want == SSL_CLIENT_HELLO_CB
return SSL_CLIENT_HELLO_CB;
s->rwstate = SSL_CLIENT_HELLO_CB;
|| (ec == SSL_ERROR_WANT_CLIENT_HELLO_CB && w == SSL_CLIENT_HELLO_CB)
|| (ec == SSL_ERROR_WANT_CLIENT_HELLO_CB && w == SSL_CLIENT_HELLO_CB)