src/include/nsswitch.h, branch releng/14.0

Remove $FreeBSD$: one-line .c comment pattern

2023-08-16T17:54:29+00:00

Remove /^/[*/]\s*\$FreeBSD\$.*\n/

spdx: The BSD-2-Clause-NetBSD identifier is obsolete, drop -NetBSD

2023-05-12T16:44:04+00:00

The SPDX folks have obsoleted the BSD-2-Clause-NetBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with:		pfg
MFC After:		3 days
Sponsored by:		Netflix

include: Fix typos

2023-02-22T16:52:57+00:00

Signed-off-by: Elyes Haouas

getaddrinfo: distinguish missing addrs from unresolvable names

2022-11-02T16:03:31+00:00

Rework getaddrinfo(3) to return different error values for unresolvable
names (same as before, EAI_NONAME) and those without a requested addr
(EAI_ADDRFAMILY) when using DNS.  This is implemented via an added
error in the nsswitch layer, NS_ADDRFAMILY, which is used only by
getaddrinfo().  The error is passed through nsdispatch(3), but that
routine has no changes to handle this error.  The error originates in
the getaddrinfo DNS layer called via nsdispatch(), and is processed
by the search layer that calls nsdispatch().

While here, add a little style to returns near those that were
modified.

Reviewed in https://reviews.freebsd.org/D37139 with related changes.

Reviewed by:    bz
MFC after:      1 month

include: General further adoption of SPDX licensing ID tags.

2017-11-25T17:09:43+00:00

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

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.

Add capability to use a db version of services. It is enabled by

2010-04-04T08:31:03+00:00

specifying `db' as source of service in /etc/nsswitch.conf.

MFC after:	2 weeks

Remove NetBSD Foundation clauses 3 & 4. They eliminated those clauses

2010-02-16T19:28:10+00:00

last year.

Implementing 'fallback' nsswitch source. 'fallback' source is used

2007-12-12T10:08:03+00:00

when particular function can't be found in nsswitch-module. For
example, getgrouplist(3) will use module-supplied 'getgroupmembership'
function (which can work in an optimal way for such source as LDAP) and
will fall back to the stanard iterate-through-all-groups implementation
otherwise.

PR:		ports/114655
Submitted by:	Michael Hanselmann 
Reviewed by:	brooks (mentor)

- Extend the nsswitch to support Services, Protocols and Rpc

2006-04-28T12:03:38+00:00

  databases.
- Make nsswitch support caching.

Submitted by:	Michael Bushkov 
Sponsored by:	Google Summer of Code 2005

= Implement name service switch modules (NSS modules). NSS modules

2003-04-17T14:14:22+00:00

  may be built into libc (`static NSS modules') or dynamically loaded
  via dlopen (`dynamic NSS modules').  Modules are loaded/initialized
  at configuration time (i.e.  when nsdispatch is called and nsswitch.conf
  is read or re-read).

= Make the nsdispatch(3) core thread-safe.

= New status code for nsdispatch(3) `NS_RETURN', currently used to
  signal ERANGE-type issues.

= syslog(3) problems, don't warn/err/abort.

= Try harder to avoid namespace pollution.

= Implement some shims to assist in porting NSS modules written for
  the GNU C Library nsswitch interface.

Sponsored by:	DARPA, Network Associates Laboratories