SSL_CTX_set_tlsext_ticket_keys
ticket_key_len = SSL_CTX_set_tlsext_ticket_keys(server_ctx, NULL, 0);
|| !TEST_int_eq(SSL_CTX_set_tlsext_ticket_keys(server_ctx,
size = SSL_CTX_set_tlsext_ticket_keys(s_ctx, NULL, 0);
SSL_CTX_set_tlsext_ticket_keys(s_ctx, keys, size);