xref: /freebsd-11-stable/etc/rc.d/sysctl

#!/bin/sh
#
# Copyright (c) 1999  Warner Losh
# 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 AUTHOR 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 AUTHOR 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: head/etc/rc.d/sysctl 92516 2002-03-17 20:14:11Z dougb $
#

#
# Read in /etc/sysctl.conf and set things accordingly
#

if [ -f /etc/sysctl.conf ]; then
	while read var comments
	do
		case ${var} in
		\#*|'')
			;;
		*)
			mib=${var%=*}
			val=${var#*=}

			if current_value=`sysctl -n ${mib} 2>/dev/null`; then
				case ${current_value} in
				${val}) ;;
				*)
					sysctl ${var}
					;;
				esac
			else
				case ${1} in
				last)
				echo "Warning: sysctl ${mib} does not exist"
					;;
				esac
			fi
			;;
		esac
	done < /etc/sysctl.conf
fi