# This class action script is introduced to handle patchrm
# operation of a patch installed in safemode.
# This CAS is invoked as part of patchrm operation. pkgadd
# installs the backout package and invokes u.none after the
# backout package is installed.  This script creates lofs mounts
# for removing safemode patch. 
#
# For special package objects such as edittable files, the patch
# producer must supply appropriate class action scripts.
#
# directory format options.
#
#       @(#)u.script 1.1 07/07/02 SMI
#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.

PATH=/usr/sadm/bin:$PATH

EXPR="/usr/bin/expr"	# used by dirname
MKDIR="/usr/bin/mkdir"
CP="/usr/bin/cp"
RM="/usr/bin/rm"
MV="/usr/bin/mv"
KSH="/usr/bin/ksh"
DIRNAME="/usr/bin/dirname"
BASENAME="/usr/bin/basename"
PATCH_COMMON_LIB="/usr/lib/patch/patch_common_lib"
SAFEMODE_FAILED="Exiting! Patch deferred activation failed"
PROGNAME=`basename $0`

if [ "$PKG_INSTALL_ROOT" = "/" ]; then
	PKG_INSTALL_ROOT=""
fi

# Since this is generic, figure out the class.
Class=`echo $PROGNAME | nawk ' { print substr($0, 3)  }'`

if [ "$SAFEMODE_INSTALL" = "true" -a "$Class" = "none" ] ; then
	if [ ! -s "$PATCH_COMMON_LIB" ]; then
		puttext "$SAFEMODE_FAILED"
		exit 1
	fi
	. $PATCH_COMMON_LIB
	InitSafemode || {
		puttext $SAFEMODE_FAILED
		exit 1
	}
fi

CMDS_USED="$KSH $EXPR $MKDIR $CP $RM $MV"
LIBS_USED=""

# Since this is an update, $BASEDIR is guaranteed to be correct
BD=${BASEDIR:-/}

cd $BD

#
# First, figure out the dynamic libraries that can trip us up.
#
if [ -z "$PKG_INSTALL_ROOT" ]; then
	if [ -x /usr/bin/ldd ]; then
		LIB_LIST=`/usr/bin/ldd $CMDS_USED | sort -u | nawk '
			$1 ~ /\// { continue; }
			{ printf "%s ", $3 } '`
	else
		LIB_LIST="/usr/lib/libc.so.1 /usr/lib/libdl.so.1 /usr/lib/libw.so.1 /usr/lib/libintl.so.1 /usr/lib/libgen.so.1 /usr/lib/libadm.so.1 /usr/lib/libelf.so.1"
	fi
fi

#
# Now read the list of files in this class to be replaced. 
# Do the lofs mounts to install the backout pkg in order to
# perform patchrm operation of a safemode installed patch.
#

LD_LIB_DIR=$PKG_INSTALL_ROOT/var/tmp/LDLIB.$$

procIdCtr=0
while read src dst; do
	if [ -z "$PKG_INSTALL_ROOT" ]; then
		Chk_Path=$dst
		for library in $LIB_LIST; do
			if [ "$Chk_Path" = "$library" ]; then
				if [ ! -d "$LD_LIB_DIR" ]; then
					$MKDIR $LD_LIB_DIR
				fi
				$CP $dst $LD_LIB_DIR
				LD_LIBRARY_PATH=$LD_LIB_DIR
				export LD_LIBRARY_PATH
			fi
		done
	fi

	# If special processing is required for each src/dst pair,
	# add that here.
	#
	#XXXSpecial_CommandsXXX#
	#

	if [ "$SAFEMODE_INSTALL" = "true" -a "$Class" = "none" ] ; then
			InstallSafemodeObject $src $dst || {
				puttext $SAFEMODE_FAILED
				exit 1
			}
	else
		$CP -p $src $dst.$$$procIdCtr
		if [ $? -ne 0 ]; then
			$RM $dst.$$$procIdCtr 1>/dev/null 2>&1
		else
			$MV -f $dst.$$$procIdCtr $dst
			for library in $LIB_LIST; do
				if [ "$library" = "$dst" ]; then
					unset $LD_LIBRARY_PATH
				fi
			done
		fi
	fi
	procIdCtr=`expr $procIdCtr + 1`
done
 
# If additional operations are required for this package, place
# those package-specific commands here.

#XXXSpecial_CommandsXXX#

#
# Release the dynamic libraries
#
if [ -d "$LD_LIB_DIR" ]; then
	$RM -fr $LD_LIB_DIR
fi

exit 0