# checkinstall script to control a patch installation.
# directory format options.
#
#       @(#)checkinstall 1.11 07/02/01 SMI
#
# Copyright (c) 2002 by Sun Microsystems, Inc.
# All rights reserved
#

PATH=/usr/sadm/bin:$PATH

NOVERS_MSG="PaTcH_MsG 8 Version $VERSION of $PKG is not installed on this system."
ALRDY_MSG="PaTcH_MsG 2 Patch number $SUNW_PATCHID is already applied."
TEMP_MSG="PaTcH_MsG 23 Patch number $SUNW_PATCHID cannot be applied until all \
restricted patches are backed out."
IDR_MSG="ERROR: IDR $SUNW_PATCHID cannot be applied until all \
Interim Relief/Diagnostics are backed out."
IDR_MSG2="ERROR: Restricted patch $SUNW_PATCHID cannot be applied until all \
Interim Relief/Diagnostics are backed out."

# Read the provided environment from what may have been a request script
. $1

# Old systems can't deal with checkinstall scripts anyway
if [ "$PATCH_PROGRESSIVE" = "true" ]; then
	exit 0
fi

#
# Confirm that the intended version is installed on the system.
#
if [ "${UPDATE}" != "yes" ]; then
	echo "$NOVERS_MSG"
	exit 3
fi

#
# Confirm that this patch hasn't already been applied and
# that no other mix-ups have occurred involving patch versions and
# the like.
#
Skip=0
active_base=`echo $SUNW_PATCHID | nawk '
	{ print substr($0, 1, match($0, "-")-1) } '`
active_inst=`echo $SUNW_PATCHID | nawk '
	{ print substr($0, match($0, "-")+1) } '`

# Is this an IDR?
if echo $active_base | egrep -s "R_idr"; then
	is_IDR="true"
	# All IDR patches are backoutable
	echo "PATCH_NO_UNDO=" >> $1
else
	is_IDR="false"
fi

# Is this a restricted patch?
if echo $active_base | egrep -s "R"; then
	is_restricted="true"
	# All restricted patches are backoutable
	echo "PATCH_NO_UNDO=" >> $1
else
	is_restricted="false"
fi

for patchappl in ${PATCHLIST}; do
	# Is this an ordinary patch applying over a restricted patch?
	if [ $is_restricted = "false" ]; then
		if echo $patchappl | egrep -s "R"; then
			echo "$TEMP_MSG"
			exit 3;
		fi
	fi

	# Is this an IDR installing on top of another IDR or restricted patch?
	if [ "$is_IDR" = "true" ]; then
		if echo $patchappl | egrep -s "R_idr"; then
			echo "$IDR_MSG"
			exit 3;
		fi
	else
		# Is this a normal patch installing on top an IDR?
		if [ "$is_IDR" = "false" ]; then
			if echo $patchappl | egrep -s "R_idr"; then
				if [ "$is_restricted" = "true" ]; then
					echo "$IDR_MSG2"
					exit 3;
				else
					echo "$IDR_MSG"
					exit 3;
				fi
			fi
		fi
	fi
		
	# Is there a newer version of this patch?
	appl_base=`echo $patchappl | nawk '
		{ print substr($0, 1, match($0, "-")-1) } '`
	if [ $appl_base = $active_base ]; then
		appl_inst=`echo $patchappl | nawk '
			{ print substr($0, match($0, "-")+1) } '`
		result=`expr $appl_inst \> $active_inst`
		if [ $result -eq 1 ]; then
			echo "PaTcH_MsG 1 Patch number $SUNW_PATCHID is superceded by the already applied $patchappl."
			exit 3
		elif [ $appl_inst = $active_inst ]; then
			# Not newer, it's the same
			if [ "$PATCH_UNCONDITIONAL" = "true" ]; then
				if [ -d $PKGSAV/$SUNW_PATCHID ]; then
					echo "PATCH_NO_UNDO=true" >> $1
				fi
			else
				echo "$ALRDY_MSG"
				exit 3;
			fi
		fi
	fi
done

# Construct a list of applied patches in order
echo "PATCHLIST=${PATCHLIST} $SUNW_PATCHID" >> $1

#
# Construct the complete list of patches this one obsoletes
#
ACTIVE_OBSOLETES=$SUNW_OBSOLETES

if [ -n "$SUNW_OBSOLETES" ]; then
	# Clear the parameter since it has already been used.
	echo "SUNW_OBSOLETES=" >> $1

	# Pass it's value on to the preinstall under another name
	echo "ACTIVE_OBSOLETES=$ACTIVE_OBSOLETES" >> $1
fi

#
# Use the first found pkginfo file since all pkginfo files MUST contain
# the same patch meta data. This is done since we can never be guaranteed of
# where the checkinstall script is located. This will work for all Solaris
# releases.
#

for pkginfo in $INST_DATADIR/*/pkginfo; do
	tmpRequire=`nawk -F= ' $1 ~ /REQUIR/ { print $2 } ' $pkginfo`
	tmpIncompat=`nawk -F= ' $1 ~ /INCOMPAT/ { print $2 } ' $pkginfo`
	break
done

#
# Construct PATCH_INFO line for this package.
#

if [ -n "$tmpRequire" ] && [ -n "$tmpIncompat" ]
then
	echo "PATCH_INFO_$SUNW_PATCHID=Installed: `date` From: `uname -n` \
	  Obsoletes: $ACTIVE_OBSOLETES Requires: $tmpRequire \
	  Incompatibles: $tmpIncompat" >> $1
elif [ -n "$tmpRequire" ]
then
	echo "PATCH_INFO_$SUNW_PATCHID=Installed: `date` From: `uname -n` \
	  Obsoletes: $ACTIVE_OBSOLETES Requires: $tmpRequire Incompatibles: " >> $1
elif [ -n "$tmpIncompat" ]
then
	echo "PATCH_INFO_$SUNW_PATCHID=Installed: `date` From: `uname -n` \
	  Obsoletes: $ACTIVE_OBSOLETES Requires: Incompatibles: $tmpIncompat" >> $1
else
	echo "PATCH_INFO_$SUNW_PATCHID=Installed: `date` From: `uname -n` \
	  Obsoletes: $ACTIVE_OBSOLETES Requires: Incompatibles: " >> $1
fi

# There can be three conditions that exist for this or an older checkinstall
# script, listed in order of precedence:
#
# 1. The checkinstall script is located in $INST_DATADIR/<pkgabbrev>.[<ext>]
# 2. The checkinstall has been moved to /tmp
# 3. An old checkinstall script must handle both 1 and 2.

# Check to see if the script has been moved to /tmp by pkginstall.

EXECDIR=`dirname $0 | grep "^/tmp/install"`

if [ -n "$SUNW_PKG_DIR" ]; then
	SCRIPTS_DIR="$SUNW_PKG_DIR/install"
elif [ -z "$EXECDIR" ]; then
	SCRIPTS_DIR=`dirname $0`
else
	# The script has been moved to /tmp. This should never happen since S9
	# pkginstall only moves the checkinstall script if it detects that it is
	# not a patch installation.

	EXT=`echo $ARCH | sed \
		-e 's/all//' \
		-e 's/sparc\.sun4/\./' \
		-e 's/sparc//' \
		-e 's/sparcv9//' \
		-e 's/i386\.i86pc/\.i/' \
		-e 's/i386//'`
	SCRIPTS_DIR="$INST_DATADIR/$PKGINST$EXT/install"
fi

echo "SCRIPTS_DIR=$SCRIPTS_DIR" >> $1

# If additional operations are required for this package, place
# those package-specific commands here.

#XXXSpecial_CommandsXXX#

exit 0