Commit Graph

57 Commits

Author SHA1 Message Date
Pedro F. Giffuni
a5dabd6c3c Fix mismatch from r342379. 2018-12-23 20:51:13 +00:00
Pedro F. Giffuni
09ed804717 gai_strerror() - Update string error messages according to RFC 3493.
Error messages in gai_strerror(3) vary largely among OSs.

For new software we largely replaced the obsoleted EAI_NONAME and
with EAI_NODATA but we never updated the corresponding message to better
match the intended use. We also have references to ai_flags and ai_family
which are not very descriptive for non-developer end users.

Bring new new error messages based on informational RFC 3493, which has
obsoleted RFC 2553, and make them consistent among the header adn
manpage.

MFC after:	1 month
Differentical Revision:	D18630
2018-12-23 18:15:48 +00:00
Pedro F. Giffuni
6e778a7efd SPDX: license IDs for some ISC-related files. 2017-12-08 15:57:29 +00:00
Pedro F. Giffuni
2321c47418 include: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:45:28 +00:00
Ed Schouten
b4a395a41b Add NI_NUMERICSCOPE.
POSIX also declares NI_NUMERICSCOPE, which makes getnameinfo() return a
numerical scope identifier. The interesting thing is that support for
this is already present in code, but #ifdef disabled. Expose this
functionality by placing a definition for it in <netdb.h>.

While there, remove references to NI_WITHSCOPEID, as that got removed 11
years ago.
2016-07-28 10:05:41 +00:00
Mark Johnston
714ac00292 Implement an NSS backend for netgroups and add getnetgrent_r(3).
This support appears to have been documented in nsswitch.conf(5) for some
time. The implementation adds two NSS netgroup providers to libc. The
default, compat, provides the behaviour documented in netgroup(5), so this
change does not make any user-visible behaviour changes. A files provider
is also implemented.

innetgr(3) is implemented as an optional NSS method so that providers such
as NIS which are able to implement efficient reverse lookup can do so.
A fallback implementation is used otherwise. getnetgrent_r(3) is added for
convenience and to provide compatibility with glibc and Solaris.

With a small patch to net/nss_ldap, it's possible to specify an ldap
netgroup provider, allowing one to query nisNetgroupTriple entries.

Sponsored by:	EMC / Isilon Storage Division
2016-06-09 01:28:44 +00:00
Ed Schouten
07acf54b4b Add missing types and constants to <netdb.h>.
According to POSIX, the netdb.h header must also provide in_addr_t and
in_port_t. It should also provide IPPORT_RESERVED. Copy over the
necessary bits from <netinet/in.h> to achieve that.
2016-05-30 13:37:11 +00:00
Hajimu UMEMOTO
b1f9559ae4 addrinfo.ai_family is an address family, not a protocol family.
PR:		162434
MFC after:	1 week
2015-12-20 15:18:50 +00:00
Hajimu UMEMOTO
2cff354f1a Add AI_V4MAPPED and AI_ALL support for getaddrinfo(3).
We need to change netdb.h to make it actually enabled.

PR:		198092
MFC after:	1 week
2015-12-18 18:08:53 +00:00
Ed Schouten
f6ab8089c6 Replace __const by const in all non-contributed source code.
As C1X is close to being released, there is no need to wrap around a
feature that is already part of C90. Most of these files already use
`const' in different placed as well.
2011-12-13 13:32:56 +00:00
Hajimu UMEMOTO
e622b47989 Add capability to use a db version of services. It is enabled by
specifying `db' as source of service in /etc/nsswitch.conf.

MFC after:	2 weeks
2010-04-04 08:31:03 +00:00
Warner Losh
f2556687c6 Remove the Berkeley clause 3's.
Add a few $FreeBSD$
2010-02-16 19:39:50 +00:00
David Schultz
1a4cc57833 Hide numerous BSD extensions in the POSIX namespace. 2009-03-14 20:04:28 +00:00
Hajimu UMEMOTO
1bdf356bd3 Fix gethostbyaddr() prototype to conform to IEEE Std 1003.1 on 64 bit
arch.

X-MFC after:	never
2006-05-21 11:27:28 +00:00
Hajimu UMEMOTO
734aa10414 Return EAI_OVERFLOW instead of EAI_MEMORY when the supplied buffer is
too short.  This conforms to RFC3493, POSIX and XPG6.

Obtained from:	NetBSD
2006-05-21 11:22:31 +00:00
Hajimu UMEMOTO
3da59cd007 Fix gethostbyaddr() prototype to conform to IEEE Std 1003.1:
http://www.opengroup.org/onlinepubs/009695399/functions/gethostbyaddr.html

gethostbyaddr_r() is changed as well.
It breaks ABI backward compatibility on 64 bit arch.  So, we fix it
on 32 bit arch only for now.

Reported by:	Rostislav Krasny <rosti.bsd@gmail.com>
2006-05-12 15:37:23 +00:00
Hajimu UMEMOTO
d3ac2b30d4 - make reentrant version of netdb functions glibc style API, and
expose them to outside of libc.
- make netdb functions NSS friendly.

Reviewed by:	arch@ and current@ (no objection)
2006-04-15 16:20:27 +00:00
Hajimu UMEMOTO
5342d17f09 Update the resolver in libc to BIND9's one.
Since, res_sendsigned(3) and the friends use MD5 functions, it is
hard to include them without having MD5 functions in libc.  So,
res_sendsigned(3) is not merged into libc.

Since, res_update(3) in BIND9 is not binary compatible with our
res_update(3), res_update(3) is leaved as is, except some
necessary modifications.
The res_update(3) and the friends are not essential part of the
resolver.  They are not defined in resolv.h but defined in
res_update.h separately in BIND9.  Further, they are not called from
our tree.  So, I hide them from our resolv.h, but leave them only
for binary backward compatibility (perhaps, no one calls them).

Since, struct __res_state_ext is not exposed in BIND9, I hide it
from our resolv.h.  And, global variable _res_ext is removed.  It
breaks binary backward compatibility.  But, since it is not used from
outside of our libc, I think it is safe.

Reviewed by:	arch@ (no objection)
2006-03-21 16:11:11 +00:00
Hajimu UMEMOTO
85a71a15c8 Remove padding for ABI compatibility of ai_addrlen member
from struct addrinfo.  This change break ABI compatibility
on 64 bit arch.
2005-07-22 18:21:28 +00:00
Hajimu UMEMOTO
ad0fab44e2 - Remove padding for ABI compatibility of n_net member from struct
netent.
- Change 1st argument of getnetbyaddr() to an uint32_t on 64 bit
  arch as well to confirm to POSIX-2001.

These changes break ABI compatibility on 64 bit arch.
There is similar padding issue for ai_addrlen of struct addrinfo.
However, it is leaved as is for now.

Discussed on:	arch@, standards@ and current@
X-MFC after:	never
2005-06-03 03:32:06 +00:00
Hajimu UMEMOTO
2e631cd2fa disable defining NI_WITHSCOPEID. It was obsoleted, and was exist
only for backward compatibility since 5.2-RELEASE.
2005-05-27 19:02:12 +00:00
Hajimu UMEMOTO
036ae3dd79 - The ai_addrlen of a struct addrinfo used to be a size_t, per
RFC 2553.  In XNS5.2, and subsequently in POSIX-2001 and RFC
  3493, it was changed to a socklen_t.  And, the n_net of a
  struct netent used to be an unsigned long integer.  In XNS5,
  and subsequently in POSIX-2001, it was changed to an uint32_t.
  To accomodate for this while preserving ABI compatibility with
  the old interface, we need to prepend or append 32 bits of
  padding, depending on the (LP64) architecture's endianness.
- Correct 1st argument of getnetbyaddr() to uint32_t on 32
  bit arch.  Stay as is on 64 bit arch for ABI backward
  compatibility for now.

Reviewed by:	das, peter
MFC after:	2 weeks
2005-05-15 20:15:15 +00:00
Hajimu UMEMOTO
bcb131aa3c hide implementation specific internal functions from netdb.h.
it is needed to make get{host,net}by*() thread-safe.
2005-04-27 19:12:57 +00:00
Alexey Zelkin
ed61386604 . Convert return type of gai_strerror() to 'const char *' as POSIX requires.
. Convert ai_errlist[] to simple 'char *' array, and appropriately
  optimize gai_strerror()
2005-02-14 11:33:12 +00:00
Hajimu UMEMOTO
c224435ed9 implement AI_NUMERICSERV (as defined in RFC3493).
Obtained from:	KAME
MFC after:	1 week
2005-01-27 14:45:11 +00:00
Brian Feldman
33dee81933 Make the resolver(3) and many associated interfaces much more reentrant.
The getaddrinfo(3), getipnodebyname(3) and resolver(3) can coincide now
with what should be totally reentrant, and h_errno values will now
be preserved correctly, but this does not affect interfaces such as
gethostbyname(3) which are still mostly non-reentrant.

In all of these relevant functions, the thread-safety has been pushed
down as far as it seems possible right now.  This means that operations
that are selected via nsdispatch(3) (i.e. files, yp, dns) are protected
still under global locks that getaddrinfo(3) defines, but where possible
the locking is greatly reduced.  The most noticeable improvement is
that multiple DNS lookups can now be run at the same time, and this
shows major improvement in performance of DNS-lookup threaded programs,
and solves the "Mozilla tab serialization" problem.

No single-threaded applications need to be recompiled.  Multi-threaded
applications that reference "_res" to change resolver(3) options will
need to be recompiled, and ones which reference "h_errno" will also
if they desire the correct h_errno values.  If the applications already
understood that _res and h_errno were not thread-safe and had their own
locking, they will see no performance improvement but will not
actually break in any way.

Please note that when NSS modules are used, or when nsdispatch(3)
defaults to adding any lookups of its own to the individual libc
_nsdispatch() calls, those MUST be reentrant as well.
2004-02-25 21:03:46 +00:00
Hajimu UMEMOTO
c77fb52188 remove EAI_NODATA aliased to EAI_NONAME.
PR:		bin/61369
2004-01-15 15:10:02 +00:00
Hajimu UMEMOTO
ff6322f828 style.
Reported by:	bde
2003-10-24 06:53:12 +00:00
Hajimu UMEMOTO
fdf361fd38 oops, EAI_NONAME is not EAINONAME. 2003-10-24 03:49:38 +00:00
Hajimu UMEMOTO
56f88dba4c workaround to have backward compatibility for EAI_NODATA.
it will be removed on 23 Apr 2004.

Submitted by:	terry
2003-10-23 17:54:17 +00:00
Hajimu UMEMOTO
27f9f41942 oops, I forget to diable EAI_ADDRFAMILY and EAI_NODATA. 2003-10-23 16:11:46 +00:00
Hajimu UMEMOTO
d24cb2490d stop use of NI_WITHSCOPEID. it was deprecated.
Obtained from:	KAME
2003-10-21 20:11:47 +00:00
Mike Barcroft
abbd890233 o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
Warner Losh
baefb2ee4e Minor libc internal-only interface change for mapv4v6. 2002-06-26 08:18:42 +00:00
Warner Losh
bb28f3c29b Breath deep and take __P out of the system include files.
# This appears to not break X11, but I'm having problems compiling the
# glide part of the server with or without this patch, so I can't tell
# for sure.
2002-03-23 17:24:55 +00:00
Bruce Evans
3e9c0bd52c Fixed order of includes. <sys/cdefs.h> must be included before
<machine/ansi.h> for the definition of __signed, unless the compiler
is gcc.

Moved the declaration of socklen_t up together with the declaration of
size_t, and removed low-quality comment about this declaration.  Declaring
socklen_t in this file is normal in POSIX-1.200x, unlike declaring size_t.
2001-10-04 10:34:30 +00:00
David E. O'Brien
1792335469 style(9) the structure definitions. 2001-09-05 01:36:46 +00:00
Mike Barcroft
e5c24b8ebc Remove namespace pollution.
PR:		14327
Reviewed by:	des
Approved by:	des
MFC after:	7 days
2001-07-22 18:10:08 +00:00
Alfred Perlstein
8f15078110 give the "netgrent" functions a home in netdb.h 2001-03-27 09:49:03 +00:00
Hajimu UMEMOTO
69b58b037c Nuke non-standard EAI_RESNULL. 2001-03-17 14:25:23 +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
Hajimu UMEMOTO
ad9fdc8f4d Correct 2nd argument of getnameinfo(3) to socklen_t.
Reviewed by:	itojun
2001-02-15 10:35:55 +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
Yoshinobu Inoue
12cefbcc20 Change IPv6 address scope delimeter from '@' to '%' as recent KAME change.
'@' conflicts with existing notations such as user@host, so '%' is better.

Approved by: jkh

Obtained from: KAME project
2000-02-08 05:12:45 +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
Peter Wemm
a4add9a9b1 $Id$ -> $FreeBSD$ 1999-08-27 23:45:13 +00:00
Peter Wemm
0160f9c065 Update nameserver interface to bind-8.1.2 levels. We do not use IRS (yet?)
since it has far wider impact than hostname lookups (including passwords).
Note that this has more ugly symbol hiding and binary compatability hacks
that can go away the second we bump majors.

Obtained from:  Mostly from diff against ISC bind-8.1.2 sources
1998-06-11 08:55:17 +00:00
Steve Price
fcd57f5cca Make this compile with the -traditional cc flag.
PR:		misc/2189
Submitted by:	Lars Koeller <Lars_Koeller@odie.physik2.uni-rostock.de>
1997-08-16 23:32:42 +00:00
Peter Wemm
4ebe87f9cc merge in bind-4.9.6 changes (only effect is __res_send #define reverted) 1997-06-27 08:32:38 +00:00
Peter Wemm
79403fe300 Revert $FreeBSD$ to $Id$ 1997-02-23 09:21:14 +00:00