| slcompress.c (3443) | slcompress.c (8876) |
|---|---|
| 1/*- 2 * Copyright (c) 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)slcompress.c 8.2 (Berkeley) 4/16/94 | 1/*- 2 * Copyright (c) 1989, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)slcompress.c 8.2 (Berkeley) 4/16/94 |
| 34 * $Id: slcompress.c,v 1.3 1994/08/18 22:35:22 wollman Exp $ | 34 * $Id: slcompress.c,v 1.4 1994/10/08 22:38:27 phk Exp $ |
| 35 */ 36 37/* 38 * Routines to compress and uncompess tcp packets (for transmission 39 * over low speed serial lines. 40 * 41 * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: 42 * - Initial distribution. --- 224 unchanged lines hidden (view full) --- 267 changes |= NEW_U; 268 } else if (th->th_urp != oth->th_urp) 269 /* argh! URG not set but urp changed -- a sensible 270 * implementation should never do this but RFC793 271 * doesn't prohibit the change so we have to deal 272 * with it. */ 273 goto uncompressed; 274 | 35 */ 36 37/* 38 * Routines to compress and uncompess tcp packets (for transmission 39 * over low speed serial lines. 40 * 41 * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: 42 * - Initial distribution. --- 224 unchanged lines hidden (view full) --- 267 changes |= NEW_U; 268 } else if (th->th_urp != oth->th_urp) 269 /* argh! URG not set but urp changed -- a sensible 270 * implementation should never do this but RFC793 271 * doesn't prohibit the change so we have to deal 272 * with it. */ 273 goto uncompressed; 274 |
| 275 deltaS = (u_short)(ntohs(th->th_win) - ntohs(oth->th_win)); | 275 deltaS = (u_short)(ntohs(th->th_win) - ntohs(oth->th_win)); |
| 276 if (deltaS) { 277 ENCODE(deltaS); 278 changes |= NEW_W; 279 } 280 281 deltaA = ntohl(th->th_ack) - ntohl(oth->th_ack); 282 if (deltaA) { 283 if (deltaA > 0xffff) --- 255 unchanged lines hidden --- | 276 if (deltaS) { 277 ENCODE(deltaS); 278 changes |= NEW_W; 279 } 280 281 deltaA = ntohl(th->th_ack) - ntohl(oth->th_ack); 282 if (deltaA) { 283 if (deltaA > 0xffff) --- 255 unchanged lines hidden --- |