| alias_irc.c (168346) | alias_irc.c (176884) |
|---|---|
| 1/*- 2 * Copyright (c) 2001 Charles Mott <cm@linktel.net> 3 * 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 --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2001 Charles Mott <cm@linktel.net> 3 * 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 --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/netinet/libalias/alias_irc.c 168346 2007-04-04 03:16:59Z kan $"); | 28__FBSDID("$FreeBSD: head/sys/netinet/libalias/alias_irc.c 176884 2008-03-06 21:50:41Z piso $"); |
| 29 30/* Alias_irc.c intercepts packages contain IRC CTCP commands, and 31 changes DCC commands to export a port on the aliasing host instead 32 of an aliased host. 33 34 For this routine to work, the DCC command must fit entirely into a 35 single TCP packet. This will usually happen, but is not 36 guaranteed. --- 390 unchanged lines hidden (view full) --- 427 iCopy = iCopy > maxsize - copyat ? maxsize - copyat : iCopy; 428 memcpy(sptr + copyat, newpacket, iCopy); 429 430/* Save information regarding modified seq and ack numbers */ 431 { 432 int delta; 433 434 SetAckModified(lnk); | 29 30/* Alias_irc.c intercepts packages contain IRC CTCP commands, and 31 changes DCC commands to export a port on the aliasing host instead 32 of an aliased host. 33 34 For this routine to work, the DCC command must fit entirely into a 35 single TCP packet. This will usually happen, but is not 36 guaranteed. --- 390 unchanged lines hidden (view full) --- 427 iCopy = iCopy > maxsize - copyat ? maxsize - copyat : iCopy; 428 memcpy(sptr + copyat, newpacket, iCopy); 429 430/* Save information regarding modified seq and ack numbers */ 431 { 432 int delta; 433 434 SetAckModified(lnk); |
| 435 delta = GetDeltaSeqOut(pip, lnk); 436 AddSeq(pip, lnk, delta + copyat + iCopy - dlen); | 435 tc = (struct tcphdr *)ip_next(pip); 436 delta = GetDeltaSeqOut(tc->th_seq, lnk); 437 AddSeq(lnk, delta + copyat + iCopy - dlen, pip->ip_hl, 438 pip->ip_len, tc->th_seq, tc->th_off); |
| 437 } 438 439 /* Revise IP header */ 440 { 441 u_short new_len; 442 443 new_len = htons(hlen + iCopy + copyat); 444 DifferentialChecksum(&pip->ip_sum, --- 35 unchanged lines hidden --- | 439 } 440 441 /* Revise IP header */ 442 { 443 u_short new_len; 444 445 new_len = htons(hlen + iCopy + copyat); 446 DifferentialChecksum(&pip->ip_sum, --- 35 unchanged lines hidden --- |