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Bjoern A. Zeeb 2bddeb8538 In case ntp cannot resolve a hostname on startup it will queue the entry
for resolving by a child process that, upon success, will add the entry
to the config of the running running parent process.

Unfortunately there are a couple of bugs with this, fixed in various
later versions of upstream in potentially different ways due to other
code changes:

1) Upon server [-46] <FQDN> the [-46] are used as FQDN for later resolving
   which does not work.  Make sure we always pass the name (or IP there).

2) The intermediate file to carry the information to the child process
   does not know about -4/-6 restrictions, so that a dual-stacked host
   could resolve to an IPv6 address but that might be unreachable (see
   r223626) leading to no working synchronization ignoring a IPv4 record.
   Thus alter the intermediate format to also pass the address family
   (AF_UNSPEC (default), AF_INET or AF_INET6) to the child process
   depending on -4 or -6.

3) Make the child process to parse the new intermediate file format and
   save the address family for getaddrinfo() hints flags.

4) Change child to always reload resolv.conf calling res_init() before
   trying to resolve names.  This will pick up resolv.conf changes or
   new resolv.confs should they have not existed or been empty or
   unusable on ntp startup.  This fix is more conditional in upstream
   versions but given FreeBSD has res_init there is no need for the
   configure logic as well.

Approved by:	roberto
Sponsored by:	Sandvine Incorporated
MFC after:	9 days
2011-06-29 13:01:10 +00:00
bin sh: Include <limits.h> instead of non-standard <sys/limits.h>. 2011-06-26 20:12:05 +00:00
cddl Add a new "REFCOMPRESSRATIO" property. 2011-06-28 07:52:01 +00:00
contrib In case ntp cannot resolve a hostname on startup it will queue the entry 2011-06-29 13:01:10 +00:00
crypto Fix clang warning (why is there nowhere yyparse() is declared?). 2011-05-18 20:57:23 +00:00
etc Run load_rc_config before stop_cmd definition, so that ${quotaoff_flags} 2011-06-28 14:26:34 +00:00
games Minor typo, fix 2 attributions 2011-06-09 06:10:39 +00:00
gnu Simply post r222273. 2011-06-08 21:29:33 +00:00
include Vendor import of clang trunk r130700: 2011-05-02 19:39:53 +00:00
kerberos5 The kerberos5 tools are only used as build tools but not otherwise and 2011-06-25 16:13:56 +00:00
lib LibUSB v1.0: Need at least one frame when doing the dummy open 2011-06-28 14:07:28 +00:00
libexec Acknowledge Edwin Groothuis for the major rewrite he 2011-06-24 05:41:38 +00:00
release Bump &release.manpath.*;. 2011-06-23 02:38:06 +00:00
rescue Finally... Import the latest open-source ZFS version - (SPA) 28. 2011-02-27 19:41:40 +00:00
sbin Add new rule actions "call" and "return" to ipfw. They make 2011-06-29 10:06:58 +00:00
secure Upgrade to OpenSSH 5.8p2. 2011-05-04 07:34:44 +00:00
share Remove AN again now that tzdata2011h has been imported. 2011-06-28 10:38:12 +00:00
sys Add new rule actions "call" and "return" to ipfw. They make 2011-06-29 10:06:58 +00:00
tools sh: Test that '!' is literal if quoted and first char of bracket expression 2011-06-25 20:37:43 +00:00
usr.bin Remove needless file due to Russia scraps DST in 2011. 2011-06-28 12:32:24 +00:00
usr.sbin Update packet filter (pf) code to OpenBSD 4.5. 2011-06-28 11:57:25 +00:00
COPYRIGHT Happy New Year 2011. 2010-12-31 18:07:16 +00:00
LOCKS Update LOCKS syntax. 2008-06-05 19:47:58 +00:00
MAINTAINERS Encourage Ben Laurie to finish getting his commit bit by appointing him 2011-05-14 17:44:12 +00:00
Makefile It's a bit odd, but "make update" in src/ can also update the ports/, 2011-06-16 12:28:37 +00:00
Makefile.inc1 It's a bit odd, but "make update" in src/ can also update the ports/, 2011-06-16 12:28:37 +00:00
Makefile.mips Retire TARGET_ABI. 2011-01-07 20:26:33 +00:00
ObsoleteFiles.inc Upgrade our copy of llvm/clang to r130700, from upstream's trunk. 2011-05-02 21:04:37 +00:00
README Vendor import of OpenSSH 5.8p2 2011-05-03 11:22:37 +00:00
UPDATING Update packet filter (pf) code to OpenBSD 4.5. 2011-06-28 11:57:25 +00:00

This is the top level of the FreeBSD source directory.  This file
was last revised on:
$FreeBSD$

For copyright information, please see the file COPYRIGHT in this
directory (additional copyright information also exists for some
sources in this tree - please see the specific source directories for
more information).

The Makefile in this directory supports a number of targets for
building components (or all) of the FreeBSD source tree, the most
commonly used one being ``world'', which rebuilds and installs
everything in the FreeBSD system from the source tree except the
kernel, the kernel-modules and the contents of /etc.  The ``world''
target should only be used in cases where the source tree has not
changed from the currently running version.  See:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html
for more information, including setting make(1) variables.

The ``buildkernel'' and ``installkernel'' targets build and install
the kernel and the modules (see below).  Please see the top of
the Makefile in this directory for more information on the
standard build targets and compile-time flags.

Building a kernel is a somewhat more involved process, documentation
for which can be found at:
   http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html
And in the config(8) man page.
Note: If you want to build and install the kernel with the
``buildkernel'' and ``installkernel'' targets, you might need to build
world before.  More information is available in the handbook.

The sample kernel configuration files reside in the sys/<arch>/conf
sub-directory (assuming that you've installed the kernel sources), the
file named GENERIC being the one used to build your initial installation
kernel.  The file NOTES contains entries and documentation for all possible
devices, not just those commonly used.  It is the successor of the ancient
LINT file, but in contrast to LINT, it is not buildable as a kernel but a
pure reference and documentation file.


Source Roadmap:
---------------
bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

games		Amusements.

gnu		Various commands and libraries under the GNU Public License.
		Please see gnu/COPYING* for more information.

include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

sys		Kernel sources.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.


For information on synchronizing your source tree with one or more of
the FreeBSD Project's development branches, please see:

  http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html