OpenSolaris_b135/pkgdefs/common_files/i.aacconf

#!/bin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
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# CDDL HEADER END
#
# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

# Get parameter value from old aac.conf file.
# Syntax: file parameter-name
getval()
{
	# Strip all instances of ';' putval() will add exactly one.
	sed -n "/^[ 	]*[^#]/s/.*$2[ 	]*=[ 	]*\([^ 	;]*\).*/\1/p" $1 \
		| head -1
}

# Put old parameter value into new aac.conf file.
# Syntax: file parameter-name value
putval()
{
	# If new parameter-value pair, append it to the file.
	grep "^[ 	]*$2" $1 >/dev/null
	if [ $? -eq 0 ]; then
		sed "/^[ 	]*[^#]/s/\($2[ 	]*=[ 	]*\)[^ 	]*/\1$3;/" \
			$1 > /tmp/tmp.$$
		mv /tmp/tmp.$$ $1
	else
		echo "$2=$3;" >>$1
	fi
}

if read src dest; then
	if [ ! -f $dest ]; then
		# no existing version, just copy in new one
		cp $src $dest
	else
		#
		# upgrading solaris
		# Save existing values of the following parameters.
		# Copy new aac.conf over current configuration file.
		# Restore saved parameters in the new aac.conf file.
		#
		legacy_name_enable=`getval $dest legacy-name-enable`
		nondasd_enable=`getval $dest nondasd-enable`
		break_enable=`getval $dest break-enable`

		cp $src $dest

		if [ -z "$legacy_name_enable" ]; then
			legacy_name_enable='"yes"'
		fi
		putval $dest legacy-name-enable $legacy_name_enable
		if [ -z "$nondasd_enable" ]; then
			nondasd_enable='"no"'
		fi
		putval $dest nondasd-enable $nondasd_enable
		if [ -z "$break_enable" ]; then
			break_enable='"no"'
		fi
		putval $dest break-enable $break_enable
	fi
fi
exit 0