174 	u_int changes = 0;  in sl_compress_tcp()  local
281 	 * receiver expects changes in the order: urgent, window,  in sl_compress_tcp()
288 		changes |= NEW_U;  in sl_compress_tcp()
299 		changes |= NEW_W;  in sl_compress_tcp()
307 		changes |= NEW_A;  in sl_compress_tcp()
315 		changes |= NEW_S;  in sl_compress_tcp()
318 	switch(changes) {  in sl_compress_tcp()
338 		 * actual changes match one of our special case encodings --  in sl_compress_tcp()
347 			changes = SPECIAL_I;  in sl_compress_tcp()
355 			changes = SPECIAL_D;  in sl_compress_tcp()
364 		changes |= NEW_I;  in sl_compress_tcp()
367 		changes |= TCP_PUSH_BIT;  in sl_compress_tcp()
390 		*cp++ = changes | NEW_C;  in sl_compress_tcp()
395 		*cp++ = changes;  in sl_compress_tcp()
467 	u_int hlen, changes;  in sl_uncompress_tcp_core()  local
509 	changes = *cp++;  in sl_uncompress_tcp_core()
510 	if (changes & NEW_C) {  in sl_uncompress_tcp_core()
532 	if (changes & TCP_PUSH_BIT)  in sl_uncompress_tcp_core()
537 	switch (changes & SPECIALS_MASK) {  in sl_uncompress_tcp_core()
552 		if (changes & NEW_U) {  in sl_uncompress_tcp_core()
557 		if (changes & NEW_W)  in sl_uncompress_tcp_core()
559 		if (changes & NEW_A)  in sl_uncompress_tcp_core()
561 		if (changes & NEW_S)  in sl_uncompress_tcp_core()
565 	if (changes & NEW_I) {  in sl_uncompress_tcp_core()
588 	for (changes = 0; hlen > 0; hlen -= 2)  in sl_uncompress_tcp_core()
589 		changes += *bp++;  in sl_uncompress_tcp_core()
590 	changes = (changes & 0xffff) + (changes >> 16);  in sl_uncompress_tcp_core()
591 	changes = (changes & 0xffff) + (changes >> 16);  in sl_uncompress_tcp_core()
592 	cs->cs_ip.ip_sum = ~ changes;  in sl_uncompress_tcp_core()