Commit Graph

46 Commits

Author SHA1 Message Date
wpaul
d51d5c3ca5 gethostbynis.c:
- Fix problem described in PR #1079: _gethostbynisaddr() doesn't
  work. Make it accept the same arguments as all the other
  gethostby*addr() functions and properly convert the supplied IP
  address into a text string so that yp_match() can find it in the
  hosts.byaddr map.

- Also fix potential memory leak: copy the results of yp_match() to
  a static buffer and free the result (yp_match() returns dynamically
  allocated memory).

ether_addr.c:

- Since I was in the neighborhood, fix ether_ntohost() and
  ether_hostton() so that they don't bogusly for a free(result)
  when yp_match() fails.
1996-03-16 21:25:59 +00:00
mpp
8b115c5fc5 Fix inet_network to not dump core if passed in an address
with more than 4 octets (e.g. 1.2.3.4.5).

Submitted by:	Amy Baron <amee@beer.org> via NetBSD-bugs
1996-02-17 21:11:36 +00:00
mpp
f153098d8f Fixed a bunch of man page cross references that were
in the main text of various man pages.

Thanks to Warner Losh for adding an option to manck to allow
it to scan the entire man page looking for bogus xrefs, instead
of just checking the SEE ALSO section.
1996-02-15 20:07:05 +00:00
wollman
379b9b388f XNS sort-of-support is no more. 1996-02-13 17:30:37 +00:00
mpp
3aeb7f1d49 Correct a bunch of man page cross references and generally
try and silence "manck".

ncurses, rpc, and some of the gnu stuff are still a big mess, however.
1996-02-11 22:38:05 +00:00
mpp
ac7bc7dc91 Added some missing MLINKS for section 3 man pages.
Also corrected a few minor formatting errors, file location and cross
references in some of the section 3 man pages.

This shuts up a lot of the output from "manck" for section 3.
1996-02-09 00:45:45 +00:00
wollman
61d8d8e40b Remove support for OSI networking in user-land (#ifdef OSI aor CCITT)
in preparation for its removal from the kernel source tree.  NB: because
a function was deleted, libc is now at version 3.0 (was 2.2 previously).
1996-02-06 20:36:15 +00:00
mpp
62cdcaa268 Fix even more spelling errors in some more man pages. 1996-01-30 16:34:52 +00:00
mpp
bc3d519a69 Getpwent() and getservent() can wind up calling free() with
an invalid pointer if a call to yp_first() fails.  Closes PR # 964,
and possibly # 952.
1996-01-29 20:16:30 +00:00
peter
05184daaef The last of the bind-4.9.3-REL resolver merges. 1996-01-13 09:03:58 +00:00
peter
5318dd95b7 Merge the 4.9.3-rel code into the res_* parts. The gethostXXXbyYYY
parts are not quite so simple..
1996-01-07 09:15:02 +00:00
peter
349c571ce6 This commit was generated by cvs2svn to compensate for changes in r13304,
which included commits to RCS files with non-trunk default branches.
1996-01-07 06:57:27 +00:00
peter
65550ab4bf Part of bind-4.9.3-rel.. This is for my convenience and reference.
This import to the vendor branch changes no files...
1996-01-07 06:57:27 +00:00
peter
c3f352d4ad This commit was generated by cvs2svn to compensate for changes in r13122,
which included commits to RCS files with non-trunk default branches.
1995-12-30 19:02:48 +00:00
wpaul
346ab43d02 Add NIS support to getservent(3) functions (getservbyport() and getservbyname()
both call getservent() to do most of the work, so we only need to modify
this file to take care of everybody).

Note that there is only one NIS services map (services.byname) even
though there are getservbyname() and getservbyport() library functions.
1995-11-04 19:07:27 +00:00
phk
4be9bcf742 As above. 1995-10-22 14:39:06 +00:00
peter
2caa66b6de Remove the CFLAGS+=-I${CURDIR}/net that I previously added.
Since Bruce changed the #include <res_config.h> to #include "res_config.h"
this is no longer needed, and only makes the 'make' more verbose for
no real reason.
1995-08-21 17:50:01 +00:00
bde
c48db1d712 Define DEBUG as 1 instead of as nothing so that it doesn't conflict with
-DDEBUG in libresolv/Makefile.
1995-08-21 09:16:02 +00:00
bde
1c10f9504f Fix bogus include paths, some of which stopped libresolv from compiling. 1995-08-21 09:15:40 +00:00
peter
bbe6ab4160 Update the resolver part of libc to bind-4.9.3-beta24 level (from beta9p1)
Note that this was done by selective patching from diffs, to not conflict
with the 4.4bsd base code..  This was *not* a trivial task..  I have been
testing this code (apart from cosmetic changes) in my libc for a while now.

Obtained from: Paul Vixie <paul@vix.com>
1995-08-20 20:03:06 +00:00
wpaul
26b873784e Submitted by: Bill Fenner <fenner@parc.xerox.com>
Fix for PR #510. The original problem was that __ivaliduser() was
failing to grant access to a machine listed in a +@netgroup specified
in /etc/hosts.equiv, even though the host being checked was most
certainly in the +@netgroup.

The /etc/hosts.equiv file in question looked like this:

localhost
+@netgroup

The reason for the failure was had to do with gethostbyaddr(). Inside
the __ivaliduser() routine, we need to do a gethostbyaddr() in order
to get back the actual name of the host we're trying to validate since
we're only passed its IP address. The hostname returned by gethostbyaddr()
is later passed as an argument to innetgr(). The problem is that
__icheckhost() later does a gethostbyname() of its own, which clobbers
the buffer returned by gethostbyaddr().

The fix is just to copy the hostname into a private buffer and use
_that_ as the 'host' argument that gets passed to innetgr().

And here I was crawling all over the innetgr() code thinking the
problem was there. *sigh*
1995-08-14 23:52:49 +00:00
wpaul
d9b1099758 Just when you thought it was safe...
- getnetgrent.c: address some NIS compatibility problems. We really need
to use the netgroup.byuser and netgroup.byhost maps to speed up innetgr()
when using NIS. Also, change the NIS interaction in the following way:

If /etc/netgroup does not exist or is empty (or contains only the
NIS '+' token), we now use NIS exclusively. This lets us use the
'reverse netgroup' maps and is more or less the behavior of other
platforms.

If /etc/netgroup exists and contains local netgroup data (but no '+').
we use only lthe local stuff and ignore NIS.

If /etc/netgroup exists and contains both local data and the '+',
we use the local data nd the netgroup map as a single combined
database (which, unfortunately, can be slow when the netgroup
database is large). This is what we have been doing up until now.

Head off a potential NULL pointer dereference in the old innetgr()
matching code.

Also fix the way the NIS netgroup map is incorporated into things:
adding the '+' is supposed to make it seem as though the netgroup
database is 'inserted' wherever the '+' is placed. We didn't quite
do it that way before.

(The NetBSD people apparently use a real, honest-to-gosh, netgroup.db
database that works just like the password database. This is
actually a neat idea since netgroups is the sort of thing that
can really benefit from having multi-key search capability,
particularly since reverse lookups require more than a trivial
amount of processing. Should we do something like this too?)

- netgroup.5: document all this stuff.

- rcmd.c: some sleuthing with some test programs linked with my own
version of innetgr() has revealed that SunOS always passes the NIS
domain name to innetgr() in the 'domain' argument. We might as well
do the same (if YP is defined).

- ether_addr.c: also fix the NIS interaction so that placing the
'+' token in the /etc/ethers file makes it seem like the NIS
ethers data is 'inserted' at that point. (Chances are nobody will
notice the effect of this change, which is just te way I like it. :)
1995-08-07 03:42:14 +00:00
peter
28fb9a318f Slight adjustment to previous fix for __ivaliduser(). It was checking for
the comment before checking for long lines, so there was a possibility
that the wrap-around might be used as an exploitable hostname.
Reviewed by:
Submitted by:
Obtained from:
1995-07-16 17:03:58 +00:00
joerg
694c427284 Make ruserok() accept the #-starting comment lines we used to have
in our default /etc/hosts.equiv.

Closes PR #conf/620: Default /etc/hosts.equiv...
1995-07-16 10:12:32 +00:00
joerg
873428202f Fix the prototypes for getservby{name,port}().
Closes PR #docs/568: minor manpage bug

Submitted by:	Michael Smith (email address no longer valid)
1995-07-09 08:17:01 +00:00
rgrimes
f05428e4cd Remove trailing whitespace. 1995-05-30 05:51:47 +00:00
wpaul
a20de0747b Add an ethers(3) man page. 1995-04-12 22:28:49 +00:00
wpaul
3db0e33b68 Add ether_addr functions to libc. This seems to be the logical place
to put them. A man page is in the works.
1995-04-02 01:31:17 +00:00
ache
522e5e4d53 Sicnce this code shares the same fragment as gethostnamaddr:
Change strtok() to strsep(), cause memory corruption for all
programs which use strtok() too in the same time.
Fix potential NULL reference, depends of /etc/hosts.conf format
Fix the bug when service name fetched always from beginning of the line,
not from parsed token.
1995-03-24 15:51:30 +00:00
ache
74c984e74d Change strtok() to strsep(), cause memory corruption for all
programs which use strtok() too in the same time.
Fix potential NULL reference, depends of /etc/hosts.conf format
Fix the bug when service name fetched always from beginning of the line,
not from parsed token.
1995-03-24 15:38:54 +00:00
wpaul
48d35b4b93 At last! Modified __ivaliduser() to do the same kind of user/host validation
that everyone else does: you can now use +host/-host, +user,-user and
+@netgroup/-@netgroup in /etc/hosts.equiv, /.rhosts, /etc/hosts.lpd and
~/.rhosts. Previously, __ivaliduser would only do host/user matches,
which was lame. This affects all the r-commands, lpd, and any other
program/service that uses ruserok().

An example of the usefullness of this feature would be a hosts.equiv
file that looks like this:

+@equiv-hosts

Since the netgroup database can now be accessed via NIS, this lets you
set up client machines once and then never have to worry about them
again: all hosts.equiv changes can now be done through NIS. Once I
finish with getpwent.c, we'll be able to do similar wacky things
with login authentication too. (Our password field substitution
will finally be on par with everyone else's, and I'll finally be
able to fully integrate my FreeBSD machine into my network without
having to worry about the grad students sneaking into it when I'm
not looking. :)

Danger Will Robinson! I tested this thing every which way I could, but
Murphy's Law applies! If anybody spots a potential security problem with
the way my matching algorithm works, tell me immediately! I don't want
crackers snickering and calling me names behind my back. :)
1995-03-20 07:29:55 +00:00
wollman
1504867da7 In _gethostbydnsaddr(), force RES_RECURSE into _res.options. This is
incredibly obnoxious, but also makes inverse mappings work when the local
resolver is in a cache-only configuration.  (Maybe this is actually
a bug in BIND?)
1994-12-01 22:25:38 +00:00
rgrimes
68370522b6 >Description:
While trying to figure out why rlogind wasn't working right for root,
	I noticed that man wouldn't come back with a man page for iruserok, but
	it would for ruserok.  Checking the lib/net directory's Makefile.inc
	file shows that the link to the rcmd man page just isn't getting
	created.
>How-To-Repeat:
	Do a 'man iruserok' and notihing will come back, where a 'man ruserok'
	will.

Submitted by:	Brian Moore <ziff@houdini.eecs.umich.edu>
Obtained from:	NetBSD-bugs mailing list
1994-10-27 16:33:49 +00:00
wollman
7c60a4347c Use same configuration file, /etc/host.conf, for both gethost* and
getnet* configuration.  (It's highly unlikely that you'd want to do
something different, and network lookups aren't common enough to justify
their own configuration file.)
1994-09-26 22:45:10 +00:00
wollman
88bee1e698 Fixed YP networks map support. 1994-09-26 02:50:43 +00:00
pst
6f303e9935 remove need for -DDEBUG from resolver code (conflict with db/hash) 1994-09-25 17:45:41 +00:00
pst
4f0d0da86d get* rework and new bind code 1994-09-25 02:12:49 +00:00
pst
dc4fe996ac Make iso_addr's output conform to modern conventions for NSAP
representation.  Original code by pst but ported in as part of
enhancements to BIND 4.9.2 and returned to Vixie.
1994-09-22 19:31:29 +00:00
csgr
7ca8cf71da Based on fix from 1.1.5.1:
>From: jtk@atria.com (John T. Kohl)
in rcmd:
It calls select() with a hardcoded "number of file descriptors" argument
of 32, rather than computing it based on the sockets about which it
cares.

- Now we work out the nfds arg, and do some error checking
Submitted by:	Geoff.
1994-09-08 20:55:02 +00:00
csgr
33e047d3b0 Fix gethostbyaddr():
call _getdnsbyaddr() instead of _getdnsbyname() ;-)
Submitted by:	Geoff
1994-08-28 13:33:10 +00:00
wollman
d20aae3469 Fixed typo. 1994-08-09 22:44:12 +00:00
wollman
004c5a3482 Add (substantially re-written) support for /etc/host.conf, and reintegrated
1.1.5 support for YP, fixing a bug in 1.1.5 that prevented YP from ever
working reliably.  (I'm amazed that there were no bug reports.)

IWBRNI someone could write a host.conf(5) manual page.  Please look at
the code before doing so; this version is somewhat more flexible in the
format of its input.
1994-08-09 20:23:14 +00:00
wollman
e017c781ca First crack at making libc work with the new make macros. It compiles on
my machine, and a simple static (genassym) and shared (sysctl) executable
both work.  Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
rgrimes
8b1c40bc18 BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00
rgrimes
e043687c62 This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.
1994-05-27 05:00:24 +00:00
rgrimes
be22b15ae2 BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00