client_flags
int client_flags = BIO_SOCK_NONBLOCK;
client_flags |= BIO_SOCK_TFO;
client_flags |= BIO_SOCK_TFO;
if (!BIO_connect(cfd, baddr, client_flags)) {
printf("%-13s ", client_flags(dp[cnt].ndcl_flags));
static char *client_flags(uint32_t);