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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
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