#!/bin/sh
set -e
export LC_ALL=C

type=$1
preversion=$2

package_name()
{
    echo libc6
}

# element() is a helper function for file-rc:
element() {
    local element list IFS

    element="$1"

    [ "$2" = "in" ] && shift
    list="$2"
    [ "$list" = "-" ] && return 1
    [ "$list" = "*" ] && return 0

    IFS=","
    set -- $list
    case $element in
	"$1"|"$2"|"$3"|"$4"|"$5"|"$6"|"$7"|"$8"|"$9")
	    return 0
    esac
    return 1
}

# filerc (runlevel, service) returns /etc/init.d/service, if service is
# running in $runlevel:
filerc() {
    local runlevel basename
    runlevel=$1
    basename=$2
    while read LINE
    do
	case $LINE in
	    \#*|"") continue
	esac

	set -- $LINE
	SORT_NO="$1"; STOP="$2"; START="$3"; CMD="$4"
	[ "$CMD" = "/etc/init.d/$basename" ] || continue

	if element "$runlevel" in "$START" || element "S" in "$START"
	then
	    echo "/etc/init.d/$basename"
	    return 0
	fi
    done < /etc/runlevel.conf
    echo ""
}

checkpkgver () {
    local status pkg
    pkg=$1
    status=$(dpkg -s $pkg 2>/dev/null | grep ^Status: | sed -e 's/^Status: \(.*\) \(.*\) \(.*\)/\3/g')
    if [ -n "$status" ] && [ "$status" != "not-installed" ] && [ "$status" != "config-files" ]; then
	echo $(dpkg -s $pkg 2>/dev/null | grep ^Version: | sed -e 's/^Version: *//');
    fi
}

if [ "$type" = "configure" ]
then
    # Add support for /etc/ld.so.conf.d
    if [ -e /etc/ld.so.conf ]; then
        [ -z "$(tail -n 1 /etc/ld.so.conf)" ] || echo >> /etc/ld.so.conf
    else
        touch /etc/ld.so.conf
    fi
    if ! grep -q '^include /etc/ld.so.conf.d/.*\.conf$' /etc/ld.so.conf ; then
        echo 'include /etc/ld.so.conf.d/*.conf' >> /etc/ld.so.conf
    fi

    # We don't use a registry anymore, remove the old file
    rm -f /etc/ld.so.hwcappkgs
 
    # /etc/ld.so.nohwcap code: NOHWCAP
    # Handle upgrades when libc-opt package has been installed.
    # When a /etc/ld.so.nohwcap file exists, ld.so only use libraries
    # from /lib, and ignore all optimised libraries. This file is
    # inconditionaly created in the preinst script of libc.
 
    # Get the list of optimized packages for a given architecture
    # Before removing a package from this list, make sure it appears
    # in the Conflicts: line of libc.
    case $(dpkg --print-architecture) in
        alpha)
            hwcappkgs="libc6-alphaev67"
            ;;
        i386)
            hwcappkgs="libc6-i686 libc6-xen"
            ;;
        kfreebsd-i386)
            hwcappkgs="libc0.1-i686"
            ;;
        sparc)
            hwcappkgs="libc6-sparcv9 libc6-sparcv9b"
            ;;
    esac
 
    # We check the version between the current installed libc and
    # all optimized packages (on architectures where such packages
    # exists).
    all_upgraded=yes
    if [ -n "$hwcappkgs" ]; then
        for pkg in $hwcappkgs ; do
            ver=$(dpkg-query -l $pkg 2>/dev/null | sed -e '/^[a-z][a-z]\s/!d;/^.[nc]/d;' -e "s/^..\s\+$pkg\s\+//;s/\s.*//g")
            if [ -n "$ver" ] && [ "$ver" != "2.11.2-10" ]; then
                all_upgraded=no
            fi
        done
    fi

    # If the versions of all optimized packages are the same as the libc
    # one, we could remove /etc/ld.so.nohwcap. Otherwise, it will be removed
    # when all optimized packages are upgraded or removed.
    if [ "$all_upgraded" = yes ] ; then
        rm -f /etc/ld.so.nohwcap
    fi

    # Load debconf module if available
    if [ -f /usr/share/debconf/confmodule ] ; then
	. /usr/share/debconf/confmodule
    fi

    if [ -n "$preversion" ]; then
	if [ ! -d /var/mail ] && [ ! -L /var/mail ]; then
	    ln -sf spool/mail /var/mail
	fi
	if dpkg --compare-versions "$preversion" lt 2.11-1; then
	    check="apache2.2-common apache apache-ssl apache-perl autofs at"
	    check="$check boa cucipop courier-authdaemon cron cups exim"
	    check="$check exim4-base dovecot-common cucipop incron lprng lpr"
	    check="$check lpr-ppd mysql-server nis openbsd-inetd"
	    check="$check openldapd proftpd postfix postfix-tls rsync samba"
	    check="$check sasl2-bin slapd smail sendmail snmpd ssh"
	    check="$check spamassassin vsftpd wu-ftpd wu-ftpd-academ wwwoffle"
	    check="$check webmin dropbear gdm"
	    # NSS services check: NSS_CHECK
	    echo -n "Checking for services that may need to be restarted..."
	    # Only get the ones that are installed, and configured
	    check=$(dpkg -s $check 2> /dev/null | egrep '^Package:|^Status:' | awk '{if ($1 ~ /^Package:/) { package=$2 } else if ($0 ~ /^Status: .* installed$/) { print package }}')
	    # some init scripts don't match the package names
	    check=$(echo $check | \
	    	    sed -e's/\bapache2.2-common\b/apache2/g' \
	    	    	-e's/\bat\b/atd/g' \
	    	    	-e's/\bdovecot-common\b/dovecot/g' \
	    	    	-e's/\bexim4-base\b/exim4/g' \
	    	    	-e's/\blpr\b/lpd/g' \
	    	    	-e's/\blpr-ppd\b/lpd-ppd/g' \
	    	    	-e's/\bmysql-server\b/mysql/g' \
	    	    	-e's/\bsasl2-bin\b/saslauthd/g' \
	    )
	    echo
	    echo "Checking init scripts..."
	    rl=$(runlevel | sed 's/.*\ //')
	    for service in $check; do
	    	if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
	    	    invoke-rc.d ${service} status >/dev/null 2>/dev/null && status=0 || status=$?
	    	    if [ "$status" = "0" ] || [ "$status" = "2" ] ; then
	    	    	services="$service $services"
	    	    elif [ "$status" = "100" ] ; then
	    	    	echo "WARNING: init script for $service not found."
	    	    fi
	    	else
	    	    if [ -f /usr/share/file-rc/rc ] || [ -f /usr/lib/file-rc/rc ] && [ -f /etc/runlevel.conf ]; then
	    	    	idl=$(filerc $rl $service)
	    	    else
	    	    	idl=$(ls /etc/rc${rl}.d/S??${service} 2> /dev/null | head -1)
	    	    fi
	    	    if [ -n "$idl" ] && [ -x $idl ]; then
	    	    	services="$service $services"
	    	    fi
	    	fi
	    done
	    if [ -n "$services" ]; then

	        if [ -f /usr/share/debconf/confmodule ] ; then
		    db_version 2.0
		    db_reset glibc/restart-services
		    db_set glibc/restart-services "$services"
		    db_input critical glibc/restart-services || true
		    db_go || true
		    db_get glibc/restart-services
		    if [ "x$RET" != "x" ]
		    then
		        services="$RET"
		    else
		    	services=""
		    fi
		else
		    echo
		    echo "Name Service Switch update in the C Library: post-installation question."
		    echo
		    echo "Running services and programs that are using NSS need to be restarted,"
		    echo "otherwise they might not be able to do lookup or authentication any more"
		    echo "(for services such as ssh, this can affect your ability to login)."
		    echo "Note: restarting sshd/telnetd should not affect any existing connections."
		    echo
		    echo "The services detected are: "
		    echo "        $services"
		    echo
		    echo "If other services have begun to fail mysteriously after this upgrade, it is"
		    echo "probably necessary to restart them too.  We recommend that you reboot your"
		    echo "machine after the upgrade to avoid NSS-related troubles."
		    echo
		    frontend=`echo "$DEBIAN_FRONTEND" | tr '[:upper:]' '[:lower:]'`
		    if [ "$frontend" = noninteractive ]; then
		    	echo "Non-interactive mode, restarting services"
		    	answer=yes
		    else
		    	echo -n "Do you wish to restart services? [Y/n] "
		    	read answer
		    	case $answer in
			    N*|n*) services="" ;;
			    *) ;;
		        esac
		    fi
		fi
		echo
		if [ "$services" != "" ]; then
		    echo "Restarting services possibly affected by the upgrade:"
		    failed=""
		    for service in $services; do
		    	if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
			    idl="invoke-rc.d ${service}"
			elif [ -f /usr/share/file-rc/rc ] || [ -f /usr/lib/file-rc/rc ] && [ -f /etc/runlevel.conf ]; then
			    idl=$(filerc $rl $service)
			else
			    idl=$(ls /etc/rc${rl}.d/S??${service} 2> /dev/null | head -1)
			fi
			case "$service" in
			    gdm)
				echo -n "  $service: reloading..."
				if $idl reload > /dev/null 2>&1; then
				    echo "done."
				else
				    echo "FAILED! ($?)"
				    failed="$service $failed"
				fi
				;;
			    *)
				echo -n "  $service: restarting..."
				if $idl restart > /dev/null 2>&1; then
				    echo "done."
				else
				    echo "FAILED! ($?)"
				    failed="$service $failed"
				fi
				;;
			esac
		    done
		    echo
		    if [ -n "$failed" ]; then
	        	if [ -f /usr/share/debconf/confmodule ] ; then
		    	    db_fset glibc/restart-failed seen false
			    db_subst glibc/restart-failed services "$failed"
			    db_input critical glibc/restart-failed || true
			    db_go || true
			else
			    echo "The following services failed to start: $failed"
			    echo
			    echo "You will need to start these manually by running \`/etc/init.d/<service> start'"
			    echo "If the service still fails to start, you may need to file a bug on"
			    echo "$(package_name) or the service involved."
			    frontend=`echo "$DEBIAN_FRONTEND" | tr '[:upper:]' '[:lower:]'`
			    if [ "$frontend" != noninteractive ]; then
			    	echo
			    	echo -n "Press ENTER to continue: "
			    	read foo
			    fi
			fi
		    else
			echo "Services restarted successfully."
                    fi
		fi
                # Shut down the frontend, to make sure none of the
		# restarted services keep a connection open to it
	        if [ -f /usr/share/debconf/confmodule ] ; then
		    db_stop
		fi
	    else
		echo "Nothing to restart."
	    fi
	fi # end upgrading and $preversion lt 2.11-1
    fi # Upgrading

    # Restart init. If it fails, there is nothing we can do, so 
    # just ignore the error
    telinit u 2> /dev/null || true ; sleep 1
fi

# Automatically added by dh_makeshlibs
if [ "$1" = "configure" ]; then
	ldconfig
fi
# End automatically added section


exit 0
