MAX_SACK_BLKS
struct sackblk sack, firstsack, temp[MAX_SACK_BLKS];
if (tp->rcv_numsacks < MAX_SACK_BLKS)
for (i = 0; i < MAX_SACK_BLKS; i++)
struct sackblk sackblks[MAX_SACK_BLKS]; /* seq nos. of sack blocks */