Commit Graph

35 Commits

Author SHA1 Message Date
Hajimu UMEMOTO
dd521ef192 - kill strcpy
- port range check need to be done before htons.  from deraadt
- %d/%u audit
- correct bad practice in the code - it uses two changing variables
  to manage buffer (buf and buflen).  we eliminate buflen and use
  fixed point (ep) as the ending pointer.
- use snprintf, not sprintf
- pass correct name into q.name.  from lukem@netbsd
- sync comment

Obtained from:	KAME
MFC after:	1 week
2002-10-25 16:24:28 +00:00
Hajimu UMEMOTO
71918af633 Put giant locks due to make getaddrinfo(), getnameinfo()
and getipnodeby*() thread-safe.
Our res_*() is not thread-safe.  So, we share lock between
getaddrinfo() and getipnodeby*().  Still, we cannot use
getaddrinfo() and getipnodeby*() in conjunction with other
functions which call res_*().

Requested by:	many people
2002-10-06 08:43:35 +00:00
Hajimu UMEMOTO
5cd588cb14 Allocate 64K recieve buffer for DNS responses.
KAME did the modification only to _dns_getaddrinfo().  However,
it is not sufficient, and res_queryN() should be modified, too.
So, I did same modification to res_queryN().

Obtained from:	KAME
2002-09-15 20:36:38 +00:00
Jacques Vidrine
54384cf3b0 Check for truncation in calls to res_send/res_query/res_search.
Fail when it is detected.
2002-09-15 16:51:09 +00:00
Jacques Vidrine
7deb8a7ddd Backout the increase of MAXPACKET from 1024 to 65536: it
broke pthreads.

Reported by:	mbr, tjr
2002-09-15 04:23:20 +00:00
Jacques Vidrine
2e4dbbaa93 When using res_send/res_query/res_search, the caller must either
insure enough space is available for the response, or be prepared
to resize the buffer and retry as necessary.

Do the conservative thing and make sure enough space is available.

Reviewed by:	silence on freebsd-audit
2002-09-13 20:31:29 +00:00
Jim Pirzyk
69b0a4b6ac Fixed getaddrinfo to honor sortlist in /etc/resolv.conf
PR:		bin/27939
Reviewed by:	ru, sheldonh (about a year ago)
Obtained from:	ume (via KAME, I think)
MFC after:	1 month
2002-08-21 19:57:53 +00:00
Maxime Henrion
9e69d6b629 Remove an #include <syslog.h>. It's already included conditionally
above, as it should be.

Submitted by:	Olivier Houchard <cognet@ci0.org>
2002-08-02 11:58:48 +00:00
David E. O'Brien
333fc21e3c Fix the style of the SCM ID's.
I believe have made all of libc .c's as consistent as possible.
2002-03-22 21:53:29 +00:00
David E. O'Brien
1372519b15 Remove multi-line __P() usage. 2002-03-22 09:22:15 +00:00
David E. O'Brien
c05ac53b8b Remove __P() usage. 2002-03-21 22:49:10 +00:00
Alfred Perlstein
1c71deff79 balance parens.
Submitted by: mbr
2002-02-05 23:56:29 +00:00
Alfred Perlstein
8d6301358e Fix cc -Wall, fix rcsid warnings, add missing prototypes,
change prototypes to be the same as in the original sun tirpc code.
Remove ()P macro in a file where the mayority had ()P already removed.
Add them if the mayority use ()P macros.

Submitted by: mbr
Requested by: bde
2002-02-05 23:43:43 +00:00
Peter Pentchev
b484faa5e0 Return ENONAME if getaddrinfo() is called with AI_NUMERICHOST
and the hostname given is not numeric.

PR:		34390
Submitted by:	Serge van den Boom <svdb@stack.nl>
Approved by:	silence from -net
MFC after:	1 month
2002-02-01 08:35:16 +00:00
Hajimu UMEMOTO
ce6282db3b Implement EDNS0 support, as EDNS0 support will be made mandatory for
IPv6 transport-ready resolvers/DNS servers.  Need careful configuration
when enable it. (default config is not affected).
See manpage for details.

XXX visible symbol __res_opt() is added, however, it is not supposed to be
called from outside, libc minor is not bumped.

Obtained from:	KAME/NetBSD
2001-06-10 20:25:24 +00:00
Hajimu UMEMOTO
69b58b037c Nuke non-standard EAI_RESNULL. 2001-03-17 14:25:23 +00:00
David E. O'Brien
ca740c1f47 Fix style that got corrupted. 2001-03-05 10:39:03 +00:00
David E. O'Brien
b373451cbe Fix FreeBSD id style breakage from rev 1.17 2001-03-05 10:30:12 +00:00
Hajimu UMEMOTO
928268064f Enable AI_ADDRCONFIG as a valid flag of getaddrinfo(3). Some
applications specify AI_ADDRCONFIG and fail to run under FreeBSD.
Latest mews is known.  Now, getaddrinfo(3) behaves according to
AI_ADDRCONFIG.
2001-02-19 13:13:51 +00:00
Daniel Eischen
d201fe46e3 Remove _THREAD_SAFE and make libc thread-safe by default by
adding (weak definitions to) stubs for some of the pthread
functions.  If the threads library is linked in, the real
pthread functions will pulled in.

Use the following convention for system calls wrapped by the
threads library:
	__sys_foo - actual system call
	_foo - weak definition to __sys_foo
	foo - weak definition to __sys_foo

Change all libc uses of system calls wrapped by the threads
library from foo to _foo.  In order to define the prototypes
for _foo(), we introduce namespace.h and un-namespace.h
(suggested by bde).  All files that need to reference these
system calls, should include namespace.h before any standard
includes, then include un-namespace.h after the standard
includes and before any local includes.  <db.h> is an exception
and shouldn't be included in between namespace.h and
un-namespace.h  namespace.h will define foo to _foo, and
un-namespace.h will undefine foo.

Try to eliminate some of the recursive calls to MT-safe
functions in libc/stdio in preparation for adding a mutex
to FILE.  We have recursive mutexes, but would like to avoid
using them if possible.

Remove uneeded includes of <errno.h> from a few files.

Add $FreeBSD$ to a few files in order to pass commitprep.

Approved by:	-arch
2001-01-24 13:01:12 +00:00
Jacques Vidrine
248aee623c Add nsswitch support. By creating an /etc/nsswitch.conf file, you can
configure FreeBSD so that various databases such as passwd and group can be
looked up using flat files, NIS, or Hesiod.

= Hesiod has been added to libc (see hesiod(3)).

= A library routine for parsing nsswitch.conf and invoking callback
  functions as specified has been added to libc (see nsdispatch(3)).

= The following C library functions have been modified to use nsdispatch:
    . getgrent, getgrnam, getgrgid
    . getpwent, getpwnam, getpwuid
    . getusershell
    . getaddrinfo
    . gethostbyname, gethostbyname2, gethostbyaddr
    . getnetbyname, getnetbyaddr
    . getipnodebyname, getipnodebyaddr, getnodebyname, getnodebyaddr

= host.conf has been removed from src/etc.  rc.network has been modified
  to warn that host.conf is no longer used at boot time.  In addition, if
  there is a host.conf but no nsswitch.conf, the latter is created at boot
  time from the former.

Obtained from:	NetBSD
2000-09-06 18:16:48 +00:00
Jason Evans
61e4108c41 Use _close() instead of close() in addrconfig() to keep it from becoming a
potential cancellation point in libc_r.
2000-07-21 04:22:39 +00:00
Jun-ichiro itojun Hagino
ec20fe00cc reject empty scopeid. use strtoul() for checking all-numericness of
portname.  explicitly reject empty numeric portname.
sync with kame.  based on comments from itohy@netbsd.org
2000-07-09 06:10:01 +00:00
Jun-ichiro itojun Hagino
b826397abd sync with kame.
- better return code.  from enami@netbsd
- do not use "class" as variable name.  C++ guy had trouble with it.
2000-07-05 05:07:23 +00:00
Hajimu UMEMOTO
a42af91cba Don't call _getipnodebyname_multi(). It fixes the problem that
getaddrinfo() accidentally returns IPv4 mapped IPv6 address instead
of native IPv4 address.
Now, getaddinfo() is scoped address ready.  You can put scoped
address within /etc/hosts.

Obtained from:	KAME Project.
2000-06-20 16:33:33 +00:00
Yoshinobu Inoue
e6f35403c1 Change getaddrinfo() resolve order
from
  all AAAA trial, then all A trial
to
  try AAAA and A for each trial

TODO: more fix for the case where IPv4 mapped IPv6 addr is disabled

Reviewed by: ume
2000-04-20 03:31:40 +00:00
Yoshinobu Inoue
0ca229d64d Change IPv6 scoped addr format again based on recent standard discussion.
Sorry for the flapping, but no change will be done for 4.0 anymore.
Official standard will be published around April or later.
If different format would be adopted at that time, then support for
the new format will be added to the succeeding FreeBSD 4.x.

Approved by: jkh
2000-02-19 16:10:16 +00:00
Yoshinobu Inoue
be26adb5b6 Let getaddrinfo() and related functions supports traditional IPv4 format
(shortend format, etc)

   Current KAME getaddrinfo() supports only d.d.d.d format IPv4
   addr. But traditionally inet_aton() and etc support other formats.
   (shortend format and octal/deciaml/hex format)
   Aboud this,
    -As far as the discussion on freebsd-current, many people
     think traditional format should also be supported by getaddrinfo().
    -X/Open spec requires getaddrinfo() also support those
     traditional IPv4 format.
    -RFC2553 say nothing about it.
    -As the result of confirmation in ietf/ipng list, there is
     no clear concensus yet, and the reply was, "RFC2553 update
     and X/Open spec will be in sync"

   So takeing these conditions into account, I think
   getaddrinfo() should also support traditional IPv4 format.

Specified by: Marc Schneiders <marc@oldserver.demon.nl>
Approved by: jkh
2000-02-10 02:59:50 +00:00
Yoshinobu Inoue
0db018f059 IPv6 scoped addr format is changed as recent KAME change.
KAME scoped addr format is changed recently.
     before:   addr@scope
     now:      scope%addr

   Because the end of IPv6 numeric addr is tend to be truncated in
   `netstat -rn ` output, so placing scope part at starting of addr
   will be convenient.

Approved by: jkh

Obtained from: KAME project
2000-02-09 00:38:06 +00:00
Jason Evans
9233c4d942 Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo().  In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate.  In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by:	deischen
2000-01-27 23:07:25 +00:00
Yoshinobu Inoue
00a8a57954 Fix getaddrinfo() behaviour to be more compliant with RFC2553. Patches are
obtained from itojun.
  -don't filter address families which are not supported by system at
   FQDN resolving.
  -don't do reverse lookup

I think I checked all lib and tools which use getaddrinfo() if
this change affect them.

Obtained from: KAME project
2000-01-26 08:37:29 +00:00
Yoshinobu Inoue
3a0c1bfb5d added IPv4 mapped IPv6 addr consideration for getaddrinfo() reverse lookup case 2000-01-13 05:37:51 +00:00
Jason Evans
929273386f 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
Yoshinobu Inoue
9b59fde4e0 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
Yoshinobu Inoue
7d56d3747c 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