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path: root/etc/rc.d/nsswitch
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#!/bin/sh
#
# Copyright (c) 1993 - 2004 The FreeBSD Project. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#

# PROVIDE: nsswitch
# REQUIRE: root
# BEFORE:  NETWORK

. /etc/rc.subr

name="nsswitch"
start_cmd="nsswitch_start"
stop_cmd=":"

generate_host_conf()
{
    local _cont _sources

    nsswitch_conf=$1; shift;
    host_conf=$1; shift;

    _cont=0
    _sources=""
    while read line; do
	line=${line##[ 	]}
	case $line in
	hosts:*)
		;;
	*)
		if [ $_cont -ne 1 ]; then
			continue
		fi
		;;
	esac
	if [ "${line%\\}" = "${line}\\" ]; then
		_cont=1
	fi
	line=${line#hosts:}
	line=${line%\\}
	line=${line%%#*}
	_sources="${_sources}${_sources:+ }$line"
    done < $nsswitch_conf

    echo "# Auto-generated from nsswitch.conf" > $host_conf
    for _s in ${_sources}; do
	case $_s in
	files)
		echo "hosts" >> $host_conf
		;;
	dns)
		echo "dns" >> $host_conf
		;;
	nis)
		echo "nis" >> $host_conf
		;;
	cache | *=*)
		;;
	*)
		echo "Warning: unrecognized source [$_s]" >&2
		;;
	esac
    done
}

nsswitch_start()
{
	# Generate host.conf for compatibility
	#
	if [ ! -f "/etc/host.conf" -o \
		"/etc/host.conf" -ot "/etc/nsswitch.conf" ]
	then
		echo 'Generating host.conf.'
		generate_host_conf /etc/nsswitch.conf /etc/host.conf
	fi

}

load_rc_config $name
run_rc_command "$1"
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