Commit Graph

665 Commits

Author SHA1 Message Date
shin
773759d8c9 added IPv4 mapped IPv6 addr consideration for getaddrinfo() reverse lookup case 2000-01-13 05:37:51 +00:00
jasone
75903038bc Add three-tier symbol naming in support of POSIX thread cancellation
points.  For library functions, the pattern is __sleep() <--
_libc_sleep() <-- sleep().  The arrows represent weak aliases.  For
system calls, the pattern is _read() <-- _libc_read() <-- read().
2000-01-12 09:23:48 +00:00
bde
95de817e06 Fixed missing include in synopsis.
Use long lines instead of lines split with backslash-newline in synopsis.
My synopsis checker doesn't understand backslash-newline.
2000-01-05 19:02:14 +00:00
bde
2652dfd127 Fixed missing include in synopsis. 2000-01-05 18:54:37 +00:00
rwatson
425c15d62c Suppress vast quantities of unneeded warnings spewed by libc's gethostbydns
on encountering a real-world SIG record during a lookup of another type.

PR:		bin/7352
Reviewed by:	peter, eivind
1999-12-28 07:21:08 +00:00
shin
21448b4627 Small bug fix and improvements
(1)added error check of if_nameindex() return value at getaddrinfo().
  (2)print out more detailed information when getaddrinfo() error value
     is EAI_SYSTEM.(in this case system error num is kept in errno)

(1) is Discovered by: jinmei@kame.net in KAME environment.
1999-12-28 05:37:39 +00:00
shin
8c2ccb59ca Getaddrinfo(), getnameinfo(), and etc support in libc/net.
Several udp and raw apps IPv6 support.

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-28 02:37:14 +00:00
peter
0e302599d7 Make this compile with -Wall -Werror 1999-12-27 08:40:40 +00:00
bde
8f12d54525 Fixed missing includes in synopsis. 1999-12-23 16:38:51 +00:00
shin
985fda16e7 KAME 4th patch
IPv6 specific library functions addition.
(getnameinfo(), getaddrinfo(), and IPv6 transport support is not yet)

Reviewed by: freebsd-arch, cvs-committers
Obtained from: KAME project
1999-12-16 18:32:01 +00:00
ache
049d579611 Add unsigned char cast to isalpha 1999-11-04 05:01:28 +00:00
ache
7cff08527c Add unsigned char cast to is[x]digit 1999-11-04 04:52:34 +00:00
ache
dc0dd57e24 unsigned char cast to ctype macros 1999-11-04 04:35:33 +00:00
ache
96b246d3bd Add unsigned char cast to ctype macros arg 1999-11-04 04:30:44 +00:00
green
972efa99ba Fix a really lame buglet which broke with IPs of 34
(ERANGE...)
1999-11-03 04:18:34 +00:00
green
3514435a4c Allow whitespace termination. Internal use of /etc/resolv.conf relies
on this, and who knows what else would, too...
1999-10-31 04:43:55 +00:00
green
5e58dc63ee This is the new inet_addr/inet_aton with proper error checking. This
should close all outstanding PRs on incorrect inet_aton behavior, and
since it has a decent parsing routine, doesn't allow some hysterically
working behavior.

PR:		13628
Submitted by:	Adrian Chadd <adrian@FreeBSD.org>
1999-10-31 04:07:56 +00:00
peter
7c20265b64 Back out my backout, it was already posix compliant. Any new fields are
required to be "announced" by a new bit in sa_flags to indicate the
program is aware of and has taken care of them.  eg: SA_SIGINFO means
the program has used the sa_siginfo field (versus sa_handler).
1999-09-28 16:58:46 +00:00
peter
123cfe878f Fix previous commit. The standards specifically say: "The structure
sigaction, used to describe an action to be taken, is defined in the
header <signal.h> to include at least the following members:"
                             ^^^^^^^^
A sigaction defined on stack with essentially random contents may have
just about anything underneath fields that the program doesn't know about.
It is not safe to delete the bzero.
1999-09-28 15:40:17 +00:00
marcel
971179f4cd Explicitly use sigemptyset to clear a sigset_t. Explicit
initialization of sa_flags allows us to lose the bzero.
1999-09-28 13:26:11 +00:00
phantom
33cff55651 Fix typo
PR:		docs/13814
Submitted by:	Alex Vasylenko <lxv@mix.nest.org>
1999-09-19 17:57:35 +00:00
peter
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
nik
f7a8bc4c04 Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

     .\"    $Id$
     .\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by:            bde
1999-07-12 20:50:10 +00:00
dt
1149f9c0c0 Ensure that host_addr (which is returned in struct hostent::h_addr_list[0])
is aligned so that pointer to it can be safely casted to struct in_addr *.
1999-06-07 16:30:27 +00:00
peter
800c3a618a Change an internal variable from "class" to "ns_class" for C++'s benefit.
Apparently BIND-8.2.1 uses ns_class.

Submitted by: John Plevyak <jplevyak@inktomi.com>
1999-06-04 22:38:27 +00:00
ghelmer
95c4306434 Mention that getservbyport requires its port parameter to be in
network byte order.

PR:		docs/9376
1999-03-02 02:34:23 +00:00
alex
95c394b70e Removed occurrences of consecutive repeated words (such as "the the"). 1999-02-12 02:12:08 +00:00
gallatin
bd8ffb71c5 gethostbyname2() was broken for lookups via NIS on FreeBSD/alpha
due to _gethostbynis() setting h.h_length to sizeof(u_long), which
works out to 8 on alphas.  And 8!= NS_INADDRSZ.
1999-01-25 03:26:45 +00:00
dfr
46dbddcd3c 64bit portability fixes.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
1998-10-05 18:35:04 +00:00
imp
ae94780f2c o use strncpy safely
o Only allow options and domain name to be set when we aren't running
  setuid.

Obtained from: OpenBSD
1998-09-14 21:13:06 +00:00
jdp
bf8ea8d3a7 Implement the weak aliases for private entry points in the inet_*
and res_* modules in a way that works for ELF.  I moved the aliases
out of res_stubs.c and into the individual modules where the entry
points are defined.  Weak aliases don't work in ELF unless that is
the case.  (Actually, I'm surprised it worked for a.out.)

This should fix the undefined "inet_addr" and related symbols in
various applications that fail to include <arpa/inet.h> or
<resolv.h> as they are supposed to do.
1998-09-02 00:53:17 +00:00
bde
cfef94c8ca Fixed bitrot in prototypes in synopsis. 1998-08-03 17:52:27 +00:00
bde
53e5892174 Fixed printf format errors. 1998-06-30 17:30:22 +00:00
peter
7321b44b39 Don't compile in the use of poll() when building libc_r. This isn't
so much a "fix", rather a bandaid to buy time to fix it properly
within the thread engine.
1998-06-14 11:25:46 +00:00
peter
9492d9f3a2 Update the resolver parts to bind-8.1.2 level. I have not touched the
getXXXXbyYYYY() interfaces yet.

Obtained from: diff relative to bind-8.1.2 sources
1998-06-11 09:03:02 +00:00
jkoshy
0d7d76d982 Spelling corrections.
PR: 6868
Submitted by: Josh Gilliam <josh@quick.net>
1998-06-06 05:50:53 +00:00
peter
da6a2015e3 Resolve some unexpected differences when comparing with the 2.2 version.
One bug was relatively harmless (select's timeout had an uninitialized
tv_usec), the other I'm not so sure.. (neglected to catch select returns
less than zero).  Both of these were irrelevant on kernels with poll().
1998-05-02 15:51:54 +00:00
peter
119bf19557 Update libc dns code to 4.9.7-T1B level. This involved chopping out large
chunks of res_comp.c and replacing it with chunks of bind-8.1.1's resolver
code.  (There are no interface changes though)
The other parts are better bounds checking related.
1998-05-02 13:11:02 +00:00
bde
57517b42e5 (Ab)use .Vt instead of .Fd for a variable declaration. 1998-03-23 13:05:07 +00:00
charnier
79fc0e5555 .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
jb
bdf0841be6 Change MACHINE references to MACHINE_ARCH. 1998-02-20 08:23:55 +00:00
jb
5860dff332 Add #include <string.h> to get prototypes. 1998-02-20 08:13:51 +00:00
bde
69cc484699 Fixed #includes in the synopsis and in an example. <sys/socket.h>
isn't a prerequisite, since it isn't required for the prototypes
and isn't always needed to call the functions (the address family
might be a variable).
1998-01-20 11:03:15 +00:00
imp
c15aab9144 handle long usernames more carefully
Reviewed by:	guido
Obtained from:	OpenBSD (Theo de Raadt)
1998-01-07 00:28:36 +00:00
alex
32ddc95d90 Removed unnecessary initialization of hp in gethostbyaddr_r. 1997-12-25 04:21:08 +00:00
bde
ea35ce8d73 Sorted lists. 1997-10-21 08:41:15 +00:00
bde
ef5c98dd45 Removed the subdirectory paths from the definitions of MAN[1-9]. They
were a workaround for limitations in bsd.man.mk that were fixed about
2 years ago.
1997-10-15 16:16:41 +00:00
peter
d9fa5d1fa2 Some adjustments for the resolver use of poll(). For some reason I thought
an unimplemented syscall returned ENOSYS, rather than EINVAL.  I have run
statically linked code with this wrapper and it does appear to work fine
on 2.2-stable which doesn't have poll().  ktrace shows the poll syscall fail
once and the fallback to select() working.
1997-09-16 06:03:54 +00:00
peter
ef7710b201 Call poll(2) from within the resolver but adapt to older kernels without it
if necessary.  This removes the need to malloc large fd_set's for selecting
on high fd's (larger than FD_SETSIZE at libc compile time).

The syscall adaptive stuff only happens on the very first call.  SIGSYS
is masked, and if the call to poll fails with ENOSYS, then we use select
for the life of the program.  If poll does not fail with ENOSYS, then we
always use poll and skip the once-off signal masking gunk.

This may be overkill, but it saved my neck a few times while working on
multiple different sets of kernel sources, some with poll, some without.
1997-09-14 09:44:34 +00:00
brian
a059b2e7c8 Add "options no_tld_query" to resolv.conf.
Mention the capability in resolver(5).
Mention that RES_OPTIONS can be used in resolver(5).
Discussed with: -hackers
1997-09-01 01:19:23 +00:00
peter
486333fcfd kill the undead 1997-07-13 14:26:00 +00:00
bde
c800b77e17 This commit was generated by cvs2svn to compensate for changes in r27180,
which included commits to RCS files with non-trunk default branches.
1997-07-03 03:28:27 +00:00
bde
e2f0a0f35c Import Lite2's src/lib, except for non-i386 machine-dependent directories,
libc/db, libc/gen/crypt.* and libtelnet.  All affected files except 3
unimportant ones have already left the vendor branch.
1997-07-03 03:28:27 +00:00
peter
0e9bc07672 replace the OpenBSD fd_set sizing code with something more efficient.
Only call malloc() if the fd is too big for the compiled in fd_set size,
and don't use calloc either.  This should reduce the impact of conflicts
with private malloc implementations etc.  When using the fd_set on the
stack, only zero what is needed rather than all 1024 bits like FD_ZERO did.
1997-06-28 04:19:52 +00:00
peter
f2163cb4a1 Dynamically size fd_set in select rather than fail if too many files
are open.
Obtained from: OpenBSD; by deraadt and dm
1997-06-27 13:00:51 +00:00
peter
6d60ffd86a compensate for res_send <-> __res_send changes 1997-06-27 08:35:13 +00:00
peter
63d61ea6e9 Merge in bind-4.9.6 resolver changes. Note that they resolve the
overflow problem differently.
1997-06-27 08:22:03 +00:00
charnier
59c6ef884a Typo. 1997-06-18 06:26:13 +00:00
ache
ea356bff53 Add MAXHOSTNAMELEN check
Obtained from: OpenBSD
1997-06-13 19:21:54 +00:00
jb
a1337bb0ae Changed all paths to be relative to src/lib instead of src/lib/libc
so that all these makefiles can be used to build libc_r too.

Added .if ${LIB} == "c" tests to restrict man page builds to libc
to avoid needlessly building them with libc_r too.

Split libc Makefile into Makefile and Makefile.inc to allow the
libc_r Makefile to include Makefile.inc too.
1997-05-03 03:50:06 +00:00
bde
f4efda881f Fixed #include and/or prototype bugs in synopsis. 1997-04-13 13:26:42 +00:00
imp
ff12c038ef If we're running setuid/setguid then don't open the host alias file to
prevent information leakage.

Closes PR 2578

Submitted by:	Julian Assange
1997-03-24 06:11:44 +00:00
bde
0e6987f95b Fixed missing #include of <sys/types.h> and wrong arg types in synopsis.
Reviewed by:	wollman
1997-03-19 19:41:20 +00:00
bde
3d67153315 Fixed missing function types in synopsis. 1997-03-19 00:32:42 +00:00
peter
214d331cf7 Fix problem with FD_SET* overflow reporting.. Perror() didn't have enough
args, and errno hasn't actually been set so it probably doesn't make sense
to report it via strerror().

Pointed out by: bde
1997-03-12 11:10:54 +00:00
peter
9e8bec9430 _res_close() -> res_close()
Pointed out by: bde
1997-03-12 11:02:00 +00:00
guido
39c96d6474 Check for overflow of FD_SET 1997-03-10 19:32:46 +00:00
mpp
b0a4a0ba48 getnetbyaddr now takes an unsigned long as its first argument. 1997-02-28 06:28:53 +00:00
imp
00bfe049f9 Buffer overflow from DNS name information which could cause root access
when called from lpd.

Reviewed by:	jkh, pst
Submitted by:	Oliver Friedrichs <oliver@secnet.com>
1997-02-26 06:12:34 +00:00
peter
6b08958c64 Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
imp
b0afeca2e2 Fix PR2579: potential security hole in rcmd.c
Submitted by:	Julian Assange
1997-02-09 06:54:46 +00:00
mpp
0037fcc3a0 Update to reflect current include files. 1997-01-30 23:10:32 +00:00
wosch
6d0dbd7455 Sort cross references. 1997-01-20 23:23:22 +00:00
jkh
808a36ef65 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
ache
bf70ac7d48 Fix fake failures on the short names which looks like hexadecimal numbers
Submitted by: paul@vix.com
1997-01-08 13:06:14 +00:00
ache
17cdaa2f54 Disable isxdigit block until proper solution will be found
isxdigit(name[0]) gives false failures on short names which looks
like hexadecimal digits, f.e. "fade", "babe", "d133", etc.
1997-01-05 17:26:09 +00:00
jkh
331981ce54 Remove bogus weak reference. 1997-01-01 11:03:44 +00:00
peter
7b950e65b2 Tempt fate! 'cvs add' a file remotely which also exists in the Attic on
RELENG_2_2!

This is part#2 of the previous commit to src/lib/libc/net to contain the
potential damage.

This provides stubs so that binaries linked in 2.2 will run on 3.0
1996-12-30 13:25:38 +00:00
peter
43be453b52 Here goes.. Bring the 4.9.5-P1 resolver into -current. This has the
DNSSEC stuff, among other things.  There are also some renamed functions,
I've left out the res_stubs.c from this commit in case cvs bombs out..
1996-12-30 13:18:48 +00:00
wpaul
7187ede063 Small yet significant tweaks/cleanups:
- getservent:
  o put _yp_check() proto under #ifdef YP where it belongs
  o local YP buffers should be YPMAXRECORD + 2 bytes long and should
    be NUL terminated after copying

- gethostbynis:
  o local YP buffer should be YPMAXRECORD + 2 bytes long

- getnetbynis:
  o local YP buffer should be YPMAXRECORD + 2 bytes long and should
    be NUL terminated after copying

- ether_addr:
  o local YP buffers should be YPMAXRECORD + 2 bytes long and should
    be NUL terminated after copying (in this case it's BUFSIZ + 2 bytes,
    but it happens that BUFSIZ == YPMAXRECORD.

- gethostbydns:
  o nuke stray 'return(NULL)' in __dns_getanswer() (harmless but looks silly)

These are 2.2 candidates. I will wait a few days to make sure these don't
break anything and then, if there are no objections, move them to the 2.2
branch.
1996-12-27 18:21:07 +00:00
wpaul
d594a0a446 Another one-liner: remember to NUL terminate local copy of NIS host
lookup results. Without this, doing multiple host/addr lookups in a
single process yeilds strange results (the buffer is static, and
garbage may be left behind from previous lookups).

I just noticed this in 2.2-BETA. Unless somebody threatens to chop my
hands off with an axe, I'm going to move this to the 2.2-RELENG branch
shortly.
1996-12-24 17:01:49 +00:00
wpaul
4ab0d63c8a Make the __dns_getanswer() wrapper work right. For the newer versions
of BIND, we need to tweak some things to that gethostanswer() knows
whether or not we're dealing with an IPv4 or IPv6 address. (This'll
teach me to use a 2.1.0 system for NIS development -- but it's so nice
and stable I just can't being myself to upgrade it. :)
1996-12-24 02:10:24 +00:00
wosch
0426c0af88 comma typos 1996-12-23 23:09:55 +00:00
wpaul
d389236bb2 Add __dns_getanswer() hook to allow access to the gethostanswer()
functions from outside libc. (Needed for async DNS resolver in ypserv.)
1996-12-22 22:05:43 +00:00
mpp
9bc3e724e5 Correct some xrefs/mlinks. 1996-12-14 23:27:20 +00:00
joerg
8f51351988 Fix the fix.
Pointed out by:	wollman, bde
1996-12-13 13:31:12 +00:00
joerg
20ea94ba7d Fix an embarassing and rather obscure incarnation of an uninitialized
local variable use.

Found by:	actually using ascii2addr() :-/
1996-12-12 21:21:11 +00:00
wollman
b569335b93 Get struct ether_addr directly from <net/ethernet.h> rather than pulling
in lots of unrelated junk from <net/if.h> and <net/if_ether.h>.  These
functions still aren't prototyped anywhere (but should be in
<net/ethernet.h>---got that, Bill?).
1996-12-10 17:19:11 +00:00
jkh
eeb126378e I asked Bill Paul why _getnetbynis() was only being called with 2 parameters,
and he said:

	The 3rd agrument is new; looks like it was part of the upgrade to
	a new BIND with some IPv6 support. The third argument here should be
	AF_INET. In order for it to be anything else, I'd have to add new
	NIS functions to support IPv6 lookups. I don't even know what those
	look like yet.

So there ya go, add AF_INET as the 3rd argument to the call.

Submitted-by: wpaul
1996-12-06 00:12:31 +00:00
jkh
e1ff7f23f8 Remove more instances of passing arrays by address when they should
have simply been passed as arrays.  In some cases, casts had even
been added to remove the warnings generated by such misuse!  Aieee!
1996-12-05 18:46:19 +00:00
jkh
387fe043cb Eliminate 3 more examples of gratutiously passing arrays by address.
Everyone please call ParaSoft today and say "I will buy 57 copies of
Insure++ tomorrow, but first I want a FreeBSD version." :-)
1996-12-05 18:41:35 +00:00
peter
259bccfa49 Doc updates and cleanups made with the bind-4.9.4 update some time ago.
I thought I had committed these, but it seems not.
1996-11-01 06:29:00 +00:00
peter
f21a0e4418 Add an "officially undocumented" tweak for squid so that it can see the
TTL of DNS records that it looks up for it's resolver cache.

Obtained from: Endre Balint Nagy <bne@CareNet.hu>, via squid-1.1.x source.
1996-11-01 06:25:43 +00:00
jkh
dea026027c Bring back ns_* routines; we need them for ifconfig and route. 1996-10-16 19:38:51 +00:00
jdp
32032fd3df Fix an error in the description of "h_errno". Add "const" to a few
declarations to make them agree with the actual prototypes in <netdb.h>.
1996-10-08 22:30:08 +00:00
pst
2e60f50f68 Skip results that have unexpected lengths 1996-10-01 03:45:06 +00:00
peter
d1d004ea7b pull this in to avoid fixing these twice 1996-08-30 22:16:46 +00:00
peter
2e0e3adbfd Sigh, back out the last bright idea I had here about compiling the res_*
routines from contrib/bind directly.  There were too many problems,
including having to add -DUSE_OPTIONS_H to the entire libc source in
order for the contrib code to pick up it's options, and so on.

Instead, I've merged the changes, libc is now self contained again.
1996-08-30 21:13:42 +00:00
peter
d976fee71f back out last two changes, this caused the mandoc pages to be replaced by
man pages.  I'll fold in the real changes in a seperate commit.
1996-08-30 19:40:05 +00:00
peter
3752244d02 oops, brain-lapse caused undefined symbol 1996-08-30 00:26:49 +00:00
peter
89e21d41bf The last commit failed part-way through, re-add the generated
resolver man pages.
1996-08-29 22:13:00 +00:00
peter
286c357861 Revert change to build the reolver man pages on the fly, install the
machine-generated versions
1996-08-29 22:06:51 +00:00
peter
1f1fd8028f Merge in bind-4.9.4-P1 resolver... 1996-08-29 20:08:19 +00:00
mpp
e3cbaed955 Update some more man pages to use the .Fx macro. 1996-08-21 22:10:36 +00:00
julian
7350d1d3b2 Submitted by: John Birrell <cimaxp1!jb@werple.net.au>
Here are the diffs for libc_r to get it one step closer to P1003.1c
These make most of the thread/mutex/condvar structures opaque to the
user. There are three functions which have been renamed with _np
suffixes because they are extensions to P1003.1c (I did them for JAVA,
which needs to suspend/resume threads and also start threads suspended).

I've created a new header (pthread_np.h) for the non-POSIX stuff.

The egrep tags stuff in /usr/src/lib/libc_r/Makefile that I uncommented
doesn't work. I think its best to delete it. I don't think libc_r needs
tags anyway, 'cause most of the source is in libc which does have tags.

also:

Here's the first batch of man pages for the thread functions.
The diff to /usr/src/lib/libc_r/Makefile removes some stuff that was
inherited from /usr/src/lib/libc/Makefile that should only be done with
libc.

also:

I should have sent this diff with the pthread(3) man page.
It allows people to type

make -DWANT_LIBC_R world

to get libc_r built with the rest of the world. I put this in the
pthread(3) man page.  The default is still not to build libc_r.


also:
The diff attached adds a pthread(3) man page to /usr/src/share/man/man3.
The idea is that without libc_r installed, this man page will give people
enough info to know that they have to build libc_r.
1996-08-20 08:22:01 +00:00
peter
665b6e261b clear sockaddr_in's on stack before use
set sin_len
close one ftp port bounce attack
have rresvport() use bindresvport() rather than duplicate the code,
  rresvport() is a superset of bindresvport().

Obtained from: OpenBSD / Jason Downs / Theo de Raadt, minor tweaks by me.
1996-08-12 14:14:09 +00:00
jkh
c4d4a99d31 General -Wall warning cleanup, part I.
Submitted-By: Kent Vander Velden <graphix@iastate.edu>
1996-07-12 18:57:58 +00:00
wollman
ab2d57f2bb Add RCS Id and fix date. 1996-06-17 20:12:53 +00:00
wollman
28bd91029c Cross-reference addr2ascii(3). 1996-06-17 20:11:12 +00:00
wollman
5aea613dbe Correct date and add $Id$ to reflect previous modification. 1996-06-17 20:04:06 +00:00
wollman
7fd93ff52e Cross-reference addr2ascii(3) and inlcude a note about how those
functions are preferred but are not widely available as yet.
1996-06-17 20:01:05 +00:00
wollman
32277d9773 It would help if I actually added the source code for these routines. 1996-06-13 20:45:42 +00:00
wollman
ab56e8b192 Add an independent implementation of addr2ascii(3) and ascii2addr(3)
following the API of the INRIA IPv6 implementation.
1996-06-13 20:45:05 +00:00
wpaul
f96a6bec7f Improve NIS performace of getservbyname() and getservbyport(). Both these
functions are implimented as wrappers around getservent(), which means it's
up to getservent() to do all the work. The NIS support in getservent()
only allows it to scan through the services.byname map one entry at a
time until it finds the requested service name/port. This can be painfully
slow due to the overhead involved (lots and lots of successive RPCs).

To fix this, we allow getservbyname() and getservbyport() to signal
getservent() that if NIS is turned on (there's a '+' in /etc/services),
the usual yp_first()/yp_next() linear search should be abandoned and
yp_match() used instead. This causes getservent() to immediately
locate the requested entry instead of wasting time groping through the
whole map.

The downside is that this trick is accomplished by exporting a couple of
pointers from getservent.c which getservbyname.c and getservbyport.c can
preset in order to tell getservent() what to do. If all three functions
were in the same source module, then the extra cruft could be delcared
static to avoid poluting the global symbol space. Maybe they should be
combined anyway. For now I've settled on prepending lots of underscores.
1996-06-01 04:40:42 +00:00
peter
3259f4bdca Use the setsockopt for IP_PORTRANGE to cause rresvport() to allocate a
privileged port within a single bind(), rather than looping through
attempts to bind over and over again over progressively lower ports.

This should speed up rlogin/rsh etc, and will probably cure some of the
strange rlogin hangs that have been reported in the past where rresvport()
managed to bind() to a port address that it shouldn't have.
1996-05-31 04:00:21 +00:00
mpp
f13d17519f Do not install the now unsupported netns and netiso
related man pages.  Comment out cross references to those man
pages from other man pages.
1996-04-08 05:15:09 +00:00
mpp
3c57dc7753 Correct some man page xrefs, and some other minor changes to bring some
man pages up to mdoc guidelines and fix some minor formatting glitches.
Also fixed a number of man pages to not abuse the .Xr macro to
display functions and path names and a lot of other junk.
1996-04-08 04:18:31 +00:00
wpaul
ce5b804dd0 Fix other half of problem reported in PR #1079: _getnetbynisaddr() is
broken. The translation from network number to ASCII string was not
working correctly (you would sometimes get things like 0.244.0.0 instead
of 244.0.0).

Also copied results of yp_match() to a static buffer for consistency
with gethostbynis.c.

Note: _getnetbynisaddr() chops off trailing .0's, i.e. 244.0.0 is
truncated to 244. By contrast, getnetbyht.c code (for local /etc/networks
lookups) leaves the traling .0's in place. This means that the NIS
and local file lookups will match different things when looking up the
same network number. I'm not sure which is the correct behavior. (I
think the DNS lookup code tries all combinations -- should the NIS
and local host lookup routines do that too?)
1996-03-23 22:16:22 +00:00
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
9e723d65b3 recording cvs-1.6 file death 1995-12-30 19:02:48 +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
be22b15ae2 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