+u8 *
+format_tcp_sacks (u8 * s, va_list * args)
+{
+ sack_block_t *sacks = va_arg (*args, sack_block_t *);
+ sack_block_t *block;
+ vec_foreach (block, sacks)
+ {
+ s = format (s, " start %u end %u\n", block->start, block->end);
+ }
+ return s;
+}
+