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113 Commits

Author SHA1 Message Date
Nick Sayer
1848e3d448 Since the root-on-insecure-tty code was added to telnetd, a dependency 
on char *line was added to libtelnet. Put a dummy one in to keep the
linker happy.
 2001-05-16 20:34:42 +00:00
Nick Sayer
166b3cb9a0 Make sure the protocol actively rejects bad data rather than 
(potentially) not responding to an invalid SRA 'auth is' message.
 2001-05-16 20:24:58 +00:00
Nick Sayer
8183ac8f53 srandomdev() affords us the opportunity to radically improve, and at the 
same time simplify, the random number selection code.
 2001-05-16 18:32:46 +00:00
Nick Sayer
60f581768d Catch any attempted buffer overflows. The magic numbers in this code 
(512) are a little distressing, but the method really needs to be
extended to allow server-supplied DH parameters anyway.

Submitted by:	kris
 2001-05-16 18:27:09 +00:00
Nick Sayer
e7157113a9 Catch malloc return failures. This should help avoid dereferencing NULL on 
low-memory situations.

Submitted by:	kris
 2001-05-16 18:17:55 +00:00
Peter Wemm
cd189e1195 Hack to work around braindeath in libtelnet:sra.c. The sra.o file 
references global variables from telnetd, but is also linked into
telnet as well. I was tempted to back out the last sra.c change
as it is 100% bogus and should be taken out and shot, but for now
this bandaid should get world working again. :-(
 2001-05-15 09:52:03 +00:00
Nick Sayer
c7be24c970 If the uid of the attempted authentication is 0 and if the pty is 
insecure, do not succeed. Copied from login.c. This functionality really
should be a PAM module.
 2001-05-15 04:47:14 +00:00
Nick Sayer
053c5b3a9e Pointy hat fix -- reapply the SRA PAM patch. To -current this time. 2001-05-07 20:42:02 +00:00
Ruslan Ermilov
566f5a4859 mdoc(7) police: removed hard sentence breaks introduced in rev.1.10. 2001-04-13 08:49:52 +00:00
Nick Sayer
036790848a Clean up telnet's argument processing a bit. autologin and encryption is 
now the default, so ignore the arguments that turn it on. Add a new -y
argument to turn off encryption in case someone wants to do that. Sync
these changes with the man page (including removing the now obsolete
statement about availability only in the US and Canada).
 2001-04-06 15:56:10 +00:00
Nick Sayer
6a1fe28e41 Reactivate SRA. 
Make handling of SIGINT and SIGQUIT follow SIGTSTP in TerminalNewMode().
This allows people to break out of SRA authentication if they wish to.
 2001-04-05 14:09:15 +00:00
Nick Sayer
989efc86f5 Fix core noted in -stable with 'auth disable SRA'. 
I just mistakenly commited this to RELENG_4. I have contacted Jordan to see
about how to fix this. Pass the pointy hat.
 2001-03-18 09:44:25 +00:00
Assar Westerlund
bb330cd01e enable auto-negotiation of encrypt and decrypt 2001-03-12 03:54:48 +00:00
Jeroen Ruigrok van der Werven
2b081e30cf Synch: Add $FreeBSD$. 2001-02-07 21:58:16 +00:00
Jeroen Ruigrok van der Werven
2fa72ea7d4 Fix typo: compatability -> compatibility. 
Compatability is not an existing english word.
 2001-02-06 12:05:58 +00:00
Jeroen Ruigrok van der Werven
9a01d32bfd Fix typo: seperate -> separate. 
Seperate does not exist in the english language.

Submitted to look at by:	kris
 2001-02-06 10:39:38 +00:00
Jeroen Ruigrok van der Werven
2cdd9c0332 Fix typo: wierd -> weird. 
There is no such thing as wierd in the english language.
 2001-02-06 09:32:26 +00:00
Ruslan Ermilov
f78fa00345 mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 17:12:45 +00:00
Ruslan Ermilov
72c60cff38 Prepare for mdoc(7)NG. 2001-01-10 16:51:28 +00:00
Assar Westerlund
ba688fa510 (scrub_env): change to only accept a listed set of variables, 
including only non-filename contents for TERMCAP
 2000-12-10 20:50:20 +00:00
Jeroen Ruigrok van der Werven
acd1c3499e Add more environment variables to be filtered through scrub_env(). 
Synched from normal telnet.
 2000-11-30 13:14:54 +00:00
Jeroen Ruigrok van der Werven
d904cf9f8e String paranoia fix. Synched from normal telnet. 2000-11-30 13:10:01 +00:00
Jeroen Ruigrok van der Werven
7e8f2fef03 String paranoia. Merged from regular telnet. 2000-11-30 10:55:25 +00:00
Kris Kennaway
f6fd83ed27 Correct definition of MAXHOSTNAMELEN in ifdef'ed code. 
Submitted by:	Edwin Groothuis <mavetju@chello.nl>
PR:		bin/22787
 2000-11-26 21:37:51 +00:00
Ruslan Ermilov
e97407b4f2 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00
Kris Kennaway
f743d11975 Fix a buffer overflow from a long local hostname. 
Obtained from:	OpenBSD
 2000-11-19 10:08:26 +00:00
Ruslan Ermilov
726b61ab5f Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
Kris Kennaway
579c78c7f6 Sync with usr.bin/telnet/telnet.c r1.9 - fix buffer overflow in DISPLAY 2000-10-29 00:10:14 +00:00
Hajimu UMEMOTO
c847fdb1f9 Fix buffer size of ALIGNed buffer. 
PR:		bin/20053
Submitted by:	Alex Kapranoff <alex@kapran.bitmcnit.bryansk.su>
 2000-07-20 14:54:04 +00:00
Peter Wemm
ecece7e319 Add missing $FreeBSD$ to files that are NOT still on vendor a branch. 2000-07-16 05:48:49 +00:00
Nick Sayer
67bf7a0ac8 Fix 'telnet -X sra' coredump 
PR# 19835
 2000-07-11 15:04:05 +00:00
Kris Kennaway
19a32101dd Don't call printf with no format string. 2000-07-10 05:16:59 +00:00
Hajimu UMEMOTO
1c60903414 Make telnet -s work. It is corresponding to EAI_NONAME -> EAI_NODATA 
change (getaddrinfo.c rev 1.12).
 2000-07-08 05:22:00 +00:00
Jun-ichiro itojun Hagino
7e154dad2e sync with usr.bin/telnet/commands.c 1.21 -> 1.22. pierre.dampure@alveley.org 2000-07-07 12:35:05 +00:00
Yoshinobu Inoue
46ad1c2366 CMSG_XXX macros alignment fixes to follow RFC2292. 
Approved by: jkh
 2000-03-03 12:50:46 +00:00
Mark Murray
bf4f84d44c Get crypto from libcrypto, not libdes. 2000-02-24 19:28:31 +00:00
Mark Murray
228c5a5af7 Freefall/Internat diff reducer. 2000-02-24 10:37:29 +00:00
Yoshinobu Inoue
81edae92ed Use static buffer to save source route hostnames. 
Approved by: jkh
 2000-02-19 16:33:14 +00:00
Yoshinobu Inoue
a82a4df889 Print "Trying ..." for each host. Also cleanups for error printing. 
Approved by: jkh

Submitted by: Ben Smithurst <ben@scientia.demon.co.uk>
 2000-02-19 16:17:41 +00:00
Yoshinobu Inoue
1d1ade86f0 Fix bugs in telnet. 
Sorry there were still several bugs.
   -error retry at af missmatch was incomplete.
   -af matching for source addr option was wrong
   -socket was not freed at retry.

Approved by: jkh
 2000-02-15 15:59:12 +00:00
Yoshinobu Inoue
960e15a70b Add more dual stack consideration. 
-Should retry as much as possible when some of source
     routing intermediate hosts' address families missmatch
     happened.
     (such as when a host has only A record, and another host
     has each of A and AAAA record.)

    -Should retry as much as possible when dest addr and
     source addr(specified with -s option) address family
     missmatch happend

Approved by: jkh
 2000-02-10 20:06:36 +00:00
Yoshinobu Inoue
f306e0c85f Fix telnet core dump at invalid service name specified. 
Added an error check to avoid it.

Approved by: jkh

Submitted by: Robert Muir <rmuir@gibralter.net>
 2000-02-07 00:52:49 +00:00
Yoshinobu Inoue
0bd288cd6c Add NI_NAMEREQD flag to getnameinfo() call. Without this flag, 
getnameinfo() don't return error at name resolving failure.
But it is used at doaddrlookup(-N) case in telnet, error need to be
returned to correctly initialize hostname buffer.

Discovered at checking recent KAME repository change, noticed by itojun.
 2000-01-29 18:21:05 +00:00
Yoshinobu Inoue
4dd8b5ab79 another tcp apps IPv6 updates.(should be make world safe) 
ftp, telnet, ftpd, faithd
  also telnet related sync with crypto, secure, kerberosIV

Obtained from: KAME project
 2000-01-27 09:28:38 +00:00
Mark Murray
2d8a17c768 Termcap header no longer needed. 1999-09-01 18:57:38 +00:00
Peter Wemm
97d92980a9 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
Nick Sayer
610fe6066a According to Mark Murray, Makefiles do not belong here. I guess we're 
going to have to figure something else out.
 1999-08-16 18:59:05 +00:00
Nick Sayer
0f8c8396c5 Add SRA authentication to src/crypto/telnet. 
SRA does a Diffie-Hellmen exchange and then DES-encrypts the
authentication data. If the authentication is successful, it also
sets up a session key for DES encryption.

SRA was originally developed at Texas A&M University.

This code is probably export restricted (despite the fact that I
originally found it at a University in Germany).

SRA is not perfect. It is vulnerable to monkey-in-the-middle attacks
and does not use tremendously large DH constants (and thus an individual
exchange probably could be factored in a few days on modern CPU
horsepower). It does not, however, require any changes in user or
administrative behavior and foils session hijacking and sniffing.
The goal of this commit is that telnet and telnetd end up in the DES
distribution and that therefore an encrypted session telnet becomes
standard issue for FreeBSD.
 1999-08-16 11:24:29 +00:00
Nick Sayer
c6a00c4589 Fix int function without return (make consistent with neighbors) 1999-08-16 02:15:29 +00:00
Nik Clayton
8c47947a95 Document the "skey" command in telnet(1). 
PR:             docs/12360
Submitted by:   kjm@rins.ryukoku.ac.jp (KOJIMA Hajime)
Nagged by:      markm :-)
 1999-07-30 21:24:03 +00:00
Ruslan Ermilov
42cf8219dc Merge from non-crypto version: 
- "-N" option
- "-E" security fix
- "-s src_addr" option

Requested by:	markm
 1999-06-17 09:24:37 +00:00
Brian Somers
4560ea546c MF libexec/telnetd: Determine the host name using an array size of 
MAXHOSTNAMELEN and call trimdomain() before implementing
                    the -u option.
 1999-04-08 21:39:34 +00:00
Brian Somers
22e99a4288 MF libexec/telnetd: MAXHOSTNAMELEN & -u fixes. 1999-04-07 10:17:24 +00:00
Brian Somers
9c5cc7136c Use realhostname(). 1999-04-06 23:35:21 +00:00
Brian Somers
3bfc6c798d MF src/libexec/telnetd: Verify the reverse DNS lookup 
ala rlogind.
Suggested by: markm
 1999-04-06 12:41:27 +00:00
Peter Wemm
8d0a3d19f7 Old stuff laying around: Don't use getstr which can conflict with some 
curses/termcap/terminfo implementations and causes recursion.
 1998-12-16 06:06:06 +00:00
Peter Wemm
3f0340f838 Old stuff from a source tree: copy (verbatum) the code to expand the 
%s/%m in the default /etc/gettytab.
 1998-12-16 06:01:33 +00:00
Gary Palmer
f58619de89 Remove redundant decl. of time(). Causes problems on alpha 1998-09-01 15:17:28 +00:00
Warner Losh
d82dcd5eaf MFC: sprintf paranoia 1998-01-22 00:04:57 +00:00
Philippe Charnier
81e04eaec0 MFC: no \n in syslog strings. Change -P to -p in flags. EOF -> -1. Use err(3). 1997-12-08 07:41:13 +00:00
Frank Durda IV
bf7bcc34e1 PR: bin/771 and bin/1037 are resolved by this change 
This change changes the default handling of linemode so that older and/or
stupider telnet clients can still get wakeup characters like <ESC> and
<CTRL>D to work correctly multiple times on the same line, as in csh
"set filec" operations.   It also causes CR and LF characters to be read by
apps in certain terminal modes consistently, as opposed to returning
CR sometimes and LF sometimes, which broke existing apps.  The change
was shown to fix the problem demonstrated in the FreeBSD telnet client,
along with the telnet client in Solaris, SCO, Windows '95 & NT, DEC OSF,
NCSA, and others.

A similar change was incorporated in the non-crypto version of telnetd.

This resolves bin/771 and bin/1037.
 1997-10-08 03:14:34 +00:00
Mark Murray
04c426cce3 Bring the FreeBSD changes to the virgin sources. 1997-09-07 07:02:53 +00:00
Mark Murray
81cb6ddccd Initial import of BSD telnet. This will be used to build the kerberised 
telnet, and after userland diffs have been merged in, will be used to
build the non-kerberised sources as well. (See unifdef(1) for details)
 1997-09-04 06:11:16 +00:00