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th->th_seq = htonl(tp->snd_nxt);		th->th_seq = htonl(tp->snd_nxt);
else		else
th->th_seq = htonl(tp->snd_max);		th->th_seq = htonl(tp->snd_max);
} else {		} else {
th->th_seq = htonl(p->rxmit);		th->th_seq = htonl(p->rxmit);
p->rxmit += len;		p->rxmit += len;
tp->sackhint.sack_bytes_rexmit += len;		tp->sackhint.sack_bytes_rexmit += len;
}		}
		if (IN_RECOVERY(tp->t_flags)) {
		/*
		* Account all bytes transmitted while
		* IN_RECOVERY, simplifying PRR and
		* Lost Retransmit Detection
		*/
		tp->sackhint.prr_out += len;
		}
th->th_ack = htonl(tp->rcv_nxt);		th->th_ack = htonl(tp->rcv_nxt);
if (optlen) {		if (optlen) {
bcopy(opt, th + 1, optlen);		bcopy(opt, th + 1, optlen);
th->th_off = (sizeof (struct tcphdr) + optlen) >> 2;		th->th_off = (sizeof (struct tcphdr) + optlen) >> 2;
}		}
th->th_flags = flags;		th->th_flags = flags;
/*		/*
* Calculate receive window. Don't shrink window,		* Calculate receive window. Don't shrink window,
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