TCPOPT_WS_LEN
if (len < TCPOPT_WS_LEN || opts[1] != TCPOPT_WS_LEN) {
opts += TCPOPT_WS_LEN;
#define TCPOPT_REAL_WS_LEN (TCPOPT_WS_LEN+1)
if (len < TCPOPT_WS_LEN || up[1] != TCPOPT_WS_LEN)
up += TCPOPT_WS_LEN;
wptr[2] = TCPOPT_WS_LEN;
wptr[2] = TCPOPT_WS_LEN;
if (len < TCPOPT_WS_LEN || up[1] != TCPOPT_WS_LEN)
up += TCPOPT_WS_LEN;
wptr[2] = TCPOPT_WS_LEN;
#define TCPOPT_REAL_WS_LEN (TCPOPT_WS_LEN+1)