f55719c110
The reason for doing this is that (at least some) 4.x binaries are very unhappy if host.conf does not exist, and if we create host.conf but not nsswitch.conf, nsswitch.conf will be created at the next reboot, so it is better to create a correct nsswitch.conf right away.
132 lines
3.8 KiB
Bash
132 lines
3.8 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 1993 - 2004 The FreeBSD Project. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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# PROVIDE: nsswitch
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# REQUIRE: root
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# BEFORE: network
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# KEYWORD: FreeBSD
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. /etc/rc.subr
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name="nsswitch"
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start_cmd="nsswitch_start"
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stop_cmd=":"
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convert_host_conf()
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{
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host_conf=$1; shift;
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nsswitch_conf=$1; shift;
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awk ' \
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/^[:blank:]*#/ { next } \
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/(hosts|local|file)/ { nsswitch[c] = "files"; c++; next } \
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/(dns|bind)/ { nsswitch[c] = "dns"; c++; next } \
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/nis/ { nsswitch[c] = "nis"; c++; next } \
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{ printf "Warning: unrecognized line [%s]", $0 > "/dev/stderr" } \
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END { \
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printf "hosts: "; \
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for (i in nsswitch) printf "%s ", nsswitch[i]; \
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printf "\n"; \
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}' < $host_conf > $nsswitch_conf
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}
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generate_nsswitch_conf()
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{
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nsswitch_conf=$1; shift;
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cat >$nsswitch_conf <<EOF
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group: compat
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group_compat: nis
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hosts: dns files
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networks: files
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passwd: compat
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passwd_compat: nis
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shells: files
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EOF
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}
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generate_host_conf()
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{
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nsswitch_conf=$1; shift;
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host_conf=$1; shift;
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awk '
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BEGIN {
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xlat["files"] = "hosts";
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xlat["dns"] = "bind";
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xlat["nis"] = "nis";
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cont = 0;
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}
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sub(/^[\t ]*hosts:/, "") || cont {
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if (!cont)
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srcs = ""
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sub(/#.*/, "")
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gsub(/[][]/, " & ")
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cont = sub(/\\$/, "")
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srcs = srcs " " $0
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}
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END {
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print "# Auto-generated from nsswitch.conf, do not edit"
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ns = split(srcs, s)
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for (n = 1; n <= ns; ++n) {
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if (s[n] in xlat)
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print xlat[s[n]]
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}
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}
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' <$nsswitch_conf >$host_conf
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}
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nsswitch_start()
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{
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# Convert host.conf to nsswitch.conf if necessary
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#
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if [ -f "/etc/host.conf" -a ! -f "/etc/nsswitch.conf" ]; then
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echo ''
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echo 'Warning: /etc/host.conf is no longer used'
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echo ' /etc/nsswitch.conf will be created for you'
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convert_host_conf /etc/host.conf /etc/nsswitch.conf
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fi
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# Generate default nsswitch.conf if none exists
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#
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if [ ! -f "/etc/nsswitch.conf" ]; then
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echo 'Generating nsswitch.conf.'
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generate_nsswitch_conf /etc/nsswitch.conf
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fi
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# Generate host.conf for compatibility
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#
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if [ ! -f "/etc/host.conf" ]; then
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echo 'Generating host.conf.'
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generate_host_conf /etc/nsswitch.conf /etc/host.conf
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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