MAX_TCPOPTLEN
int maxseg = tp->t_maxseg - MAX_TCPOPTLEN;
uint8_t opts[MAX_TCPOPTLEN], *opt, *eoh;
uint8_t opts[MAX_TCPOPTLEN], *opt;
uint8_t opts[MAX_TCPOPTLEN], *opt;
uint8_t opts[MAX_TCPOPTLEN], *opt;
uint8_t opts[MAX_TCPOPTLEN], *opt;
uint8_t opts[MAX_TCPOPTLEN], *opt;