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131 lines
3.8 KiB
Bash
131 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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. /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: files dns
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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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