072e5e6887
it is no use to do SO_DONTROUTE on receive socket. stevesk@openbsd
2002-08-12 02:51:07 +00:00
d36c8b47de
no need for struct timezone. From: Kevin Steves <kevin@atomicgears.com>
2002-08-09 02:57:09 +00:00
f34e694103
correct in_cksum2 for odd length case
2002-08-01 09:03:50 +00:00
80964024a7
kill register variable decls, they are meaningless these days
2002-08-01 09:02:18 +00:00
518af973ec
u_short cleansing (use u_int16_t where appropriate).
...
XXX in_cksum2 does not seem correct in odd length case
2002-08-01 08:41:32 +00:00
4036c57dcb
Work-around an internal compiler error on the SuperH sh5 toolchain.
2002-07-11 20:07:07 +00:00
1fd7b003fa
it is highly unlikely that protocol # for ip/icmp to change. from deraadt.
2002-06-29 12:12:57 +00:00
c264025d4e
grab max hlim/ttl from kernel via sysctl. sync w/openbsd
2002-05-26 14:45:43 +00:00
59998d6154
check if timeout already expired before select.
...
from OpenBSD/FreeBSD.
2002-01-12 02:42:58 +00:00
f5d592cf44
Add support for printing the AS number associated with the address at
...
each hop.
2001-11-04 23:14:35 +00:00
76e9d7eb12
fix lsrr.
2001-10-09 12:43:37 +00:00
48110adac6
correct fd_set allocation. from deraadt
2001-01-12 18:53:20 +00:00
6626345485
avoid fd_set overflow. see openbsd select(2).
...
XXX should we use poll(2)?
2000-10-07 06:53:41 +00:00
802499fd1c
Avoid using savestr() on something which will later be passed to
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free(). Raised as a potential security issue on bugtraq. No actual
exploits known.
2000-09-30 12:44:37 +00:00
a58fc4d3b8
sync with latest libipsec/kernel.
2000-01-31 14:25:42 +00:00
0cd03c86b4
Fix use of -I and -P at the same time by refactoring so there's only
...
one set of code which knows how to resize the packet.
Report when we shrink MTU because of an EMSGSIZE return; fix
formatting to let this not look ugly.
Add a few likely MTU's to the table (1480 and 1280).
2000-01-25 16:24:32 +00:00
e33da94c5b
configure IPsec policy on sending/receiving socket for bypassing IPsec.
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If IPsec default policy is configured for destination
traceroute will never success (because encrypted icmp timexceeded
is unrecognizable).
1999-09-03 03:10:38 +00:00
6f775308a6
Only require half of the responses to indicate that the destination is
...
unreachable. This makes traceroute exit when it encounters a Cisco, which
typically does not respond to every other probe (or so) when either there
is no route to the destionation or an access list is blocking the probes.
1999-06-19 05:07:44 +00:00
38f1211404
Add sanity check for MTU size in fragmentation required packets.
1999-06-16 20:43:48 +00:00
847d4766be
Factor out common code in the fragmentation required branch.
1999-06-16 20:10:07 +00:00
a11ec6ccb8
Don't forget to update the UDP length when changing the packet length.
...
Reported by Johan Danielsson in PR 7781; the fix is an updated version
(by the same person) of the patch in the PR.
1999-06-16 13:52:58 +00:00
6f6fd8467a
Cosmetics: a) add missing \n-s, b) this is ntohs, not htons, here.
1999-06-16 13:26:16 +00:00
ab86ce8dab
Fix byte ordering problem on little endian systems. Patch supplied by
...
Jarle Greipsland in PR bin/7700.
1999-06-05 09:50:39 +00:00
0b8b373b79
Limit wait time, so that people cannot use this as a flooding tool.
...
From bugtraq, but fixed differently than suggested.
1999-02-17 07:17:28 +00:00
b3523bee1d
Oops. We don't need limits.h in this program.
1999-02-16 23:27:43 +00:00
b8bcd9b643
If not root, make sure source address matches a local interface.
1999-02-16 23:18:40 +00:00
8164a79fad
Check select() return value, and abort the program if an error is
...
returned. Otherwise after sending a packet, select() may return
immediately (if there's an error of some sort) and traceroute
solders on, sending more packets with no delay in between. This is
effectively a small flood attack.
1999-02-16 20:47:24 +00:00
8c2d809b71
Use a little bit of magic suggested by Ken Hornstein to find an
...
appropriate source address for the UDP packets. Fixes PR bin/4427
by Luke Mewburn.
1998-12-09 22:53:29 +00:00
b1934d6034
{} fixes from Erik Bertelsen <erik@erik-be.uni-c.dk> (PR 6047) to shut up egcs.
1998-08-27 20:31:00 +00:00
a9f772b8bb
Add path mtu discovery. Idea and code fragments by W. Richard Stevens.
1998-07-17 23:45:24 +00:00
32f519716b
- use an array MAXHOSTNAMELEN+1 size to hold hostnames
...
- ensure hostname from gethostname() is nul-terminated in all cases
- minor KNF
- use MAXHOSTNAMELEN over various other values/defines
- be safe will buffers that hold hostnames
1998-07-06 06:56:06 +00:00
26b338e7f0
ensure we do not overrun errbuf.
1998-07-04 20:47:24 +00:00
4b634c4e10
Much cleaner fix for alignment error bug.
1997-11-03 21:17:17 +00:00
ba9c8e00db
Eliminate some alignment assumptions in packed IP/UDP frames. (port-alpha issue)
1997-10-31 23:32:24 +00:00
2ba239a7a3
getopt returns -1 not EOF
1997-10-17 13:57:02 +00:00
89ab9fcd0f
Fix conflicts.
1997-10-04 16:31:24 +00:00
3845c4168d
Make it recognize ICMP_UNREACH_ADMIN_PROHIBITED (type 13) as !A, and print
...
!{number} for unknown numbers.
This patch is part of PR 4038 by Havard Eidnes <he@vader.runit.sintef.no>,
who in turn did loosely base his patch on the FreeBSD 2.2.2 version.
1997-09-02 21:48:50 +00:00
b6bb351e9c
be safe with buffers.
1997-04-13 13:45:02 +00:00
af1f12dc6e
Add a -l flag, which displays the ttl of the returned packet.
...
From D'Arcy J.M. Cain <darcy@druid.com>, PR #2773 .
1996-09-27 01:34:51 +00:00
4f6bc4307e
fix two security holes; recently posted to freebsd-bugs
1996-09-11 23:53:38 +00:00
1e7535e577
Do the timeout in bin/2701 a bit differently.
1996-08-16 21:36:18 +00:00
4022c55a29
Fix traceroute timeout problems and a printing problem. Closes pr bin/2701
1996-08-16 20:47:31 +00:00
fe16013cee
Fixed reversed inet_aton condition test; From PR #2579
1996-06-30 22:51:11 +00:00
800709ce22
Use inet_aton(), not inet_addr().
1995-05-21 15:50:45 +00:00
1290cb93c0
botched rcsid fix completely..
1995-03-27 02:24:13 +00:00
bbb6bf7c90
new rcsid format. small cleanup
1995-03-26 21:45:18 +00:00
58b580b79b
Remove unused tvsub().
1995-03-21 14:29:14 +00:00
e1dcc80293
Convert a few more.
1995-01-04 04:47:42 +00:00
aeb42b9ada
Convert some things to use err*()/warn*().
1995-01-04 04:42:09 +00:00
9ec22f1c91
Add a `-g' option for loose source routing, as implemented by John Hawkinson
...
and I.
1995-01-04 04:28:18 +00:00
itojun