| traceroute.c (216184) | traceroute.c (220968) |
|---|---|
| 1/* 2 * Copyright (c) 1988, 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000 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: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and --- 14 unchanged lines hidden (view full) --- 23static const char copyright[] = 24 "@(#) Copyright (c) 1988, 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000\n\ 25The Regents of the University of California. All rights reserved.\n"; 26#if 0 27static const char rcsid[] = 28 "@(#)$Id: traceroute.c,v 1.68 2000/12/14 08:04:33 leres Exp $ (LBL)"; 29#endif 30static const char rcsid[] = | 1/* 2 * Copyright (c) 1988, 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000 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: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and --- 14 unchanged lines hidden (view full) --- 23static const char copyright[] = 24 "@(#) Copyright (c) 1988, 1989, 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000\n\ 25The Regents of the University of California. All rights reserved.\n"; 26#if 0 27static const char rcsid[] = 28 "@(#)$Id: traceroute.c,v 1.68 2000/12/14 08:04:33 leres Exp $ (LBL)"; 29#endif 30static const char rcsid[] = |
| 31 "$FreeBSD: head/contrib/traceroute/traceroute.c 216184 2010-12-04 14:19:27Z uqs $"; | 31 "$FreeBSD: head/contrib/traceroute/traceroute.c 220968 2011-04-23 13:07:35Z simon $"; |
| 32#endif 33 34/* 35 * traceroute host - trace the route ip packets follow going to "host". 36 * 37 * Attempt to trace the route an ip packet would follow to some 38 * internet host. We find out intermediate hops by launching probe 39 * packets with a small ttl (time to live) then listening for an --- 464 unchanged lines hidden (view full) --- 504 pe = getprotobyname(cp); 505 if (pe) { 506 if ((s = socket(AF_INET, SOCK_RAW, pe->p_proto)) < 0) 507 sockerrno = errno; 508 else if ((sndsock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) 509 sockerrno = errno; 510 } 511 | 32#endif 33 34/* 35 * traceroute host - trace the route ip packets follow going to "host". 36 * 37 * Attempt to trace the route an ip packet would follow to some 38 * internet host. We find out intermediate hops by launching probe 39 * packets with a small ttl (time to live) then listening for an --- 464 unchanged lines hidden (view full) --- 504 pe = getprotobyname(cp); 505 if (pe) { 506 if ((s = socket(AF_INET, SOCK_RAW, pe->p_proto)) < 0) 507 sockerrno = errno; 508 else if ((sndsock = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) < 0) 509 sockerrno = errno; 510 } 511 |
| 512 setuid(getuid()); | 512 if (setuid(getuid()) != 0) { 513 perror("setuid()"); 514 exit(1); 515 } |
| 513 514#ifdef IPCTL_DEFTTL 515 { 516 int mib[4] = { CTL_NET, PF_INET, IPPROTO_IP, IPCTL_DEFTTL }; 517 size_t sz = sizeof(max_ttl); 518 519 if (sysctl(mib, 4, &max_ttl, &sz, NULL, 0) == -1) { 520 perror("sysctl(net.inet.ip.ttl)"); --- 1270 unchanged lines hidden --- | 516 517#ifdef IPCTL_DEFTTL 518 { 519 int mib[4] = { CTL_NET, PF_INET, IPPROTO_IP, IPCTL_DEFTTL }; 520 size_t sz = sizeof(max_ttl); 521 522 if (sysctl(mib, 4, &max_ttl, &sz, NULL, 0) == -1) { 523 perror("sysctl(net.inet.ip.ttl)"); --- 1270 unchanged lines hidden --- |