freebsd-src/etc/rc.sysctl
Doug Barton c84f8c0e17 Distinguish between first and last passes of rc.sysctl, and only set
mibs whose values are not already what is specified in sysctl.conf.
2002-03-17 20:14:11 +00:00

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#!/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.
#
# $FreeBSD$
#
#
# 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