- -u is for stopping in ssd

[projects/rc-scripts.git] / rc.d / init.d / functions

#!/bin/sh - keep it for file(1) to get bourne shell script result
# functions	This file contains functions to be used by most or all
#		shell scripts in the /etc/init.d directory.
#
# $Id$
#
# Author:	Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
# Hacked by:	Greg Galloway and Marc Ewing
# Modified for PLD Linux by:
#		Marek Obuchowicz <elephant@pld-linux.org>
#		Arkadiusz Miśkiewicz <misiek@pld-linux.org>
#		Michał Kochanowicz <mkochano@pld-linux.org>
#		Łukasz Pawelczyk <havner@pld-linux.org>

# First set up a default search path.
export PATH="/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin"

# Set defaults
INIT_COL=67

# Set colors
RED=1
GREEN=2
YELLOW=3
BLUE=4
MAGENTA=5
CYAN=6
WHITE=7
NORMAL=9
# Bold definition (second parameter to termput setaf)
BOLD=1
NOBOLD=0
# Default colors
CBRACKETS="$CYAN"	# brackets [ ] color
CDONE="$GREEN"		# DONE and WORK color
CBUSY="$MAGENTA"	# BUSY color
CFAIL="$RED"		# FAIL and DIED color
CPOWEREDBY="$CYAN"	# "Powered by" color
CPLD="$GREEN"		# "PLD Linux Distribution" color
CI="$RED"		# Capital I color (press I to enter interactive startup)
CRESMAN="$GREEN"	# "Resource Manager" color
CHARS=""		# Characters displayed on the beginning of show line
CCHARS="$NORMAL"	# Color of these characters (look at /etc/sysconfig/init-colors.gentoo example)

# Source configuration if available - may override default values
[ -r /etc/sysconfig/init-colors ] && . /etc/sysconfig/init-colors
[ -r /etc/sysconfig/system ] && . /etc/sysconfig/system
[ -r /etc/sysconfig/bootsplash ] && . /etc/sysconfig/bootsplash
[ -z "$COLUMNS" ] && COLUMNS=80

if [ -z "$VSERVER" -o "$VSERVER" = "detect" ]; then
	{
		while read _f _ctx; do
			[ "$_f" = "VxID:" -o "$_f" = "s_context:" ] && break
		done </proc/self/status
	} 2>/dev/null
	if [ -z "$_ctx" -o "$_ctx" = "0" ]; then
		VSERVER=no
	else
		VSERVER=yes
	fi
	unset _f _ctx
fi

# we need to know in functions if we were called from a terminal
if [ -z "$ISATTY" ]; then
	[ -t ] && ISATTY=yes || ISATTY=no
	export ISATTY
fi

is_yes() {
	# Test syntax
	if [ $# = 0 ] ; then
		msg_usage " is_yes {value}"
		return 2
	fi

	# Check value
	case "$1" in
	yes|Yes|YES|true|True|TRUE|on|On|ON|Y|y|1)
		# true returns zero
		return 0
		;;
	*)
		# false returns one
		return 1
		;;
	esac
}

is_no() {
	# Test syntax
	if [ $# = 0 ] ; then
		msg_usage " is_no {value}"
		return 2
	fi

	case "$1" in
	no|No|NO|false|False|FALSE|off|Off|OFF|N|n|0)
		# true returns zero
		return 0
		;;
	*)
		# false returns one
		return 1
		;;
	esac
}

# checks if file is empty
# empty lines and lines beginning with hash are ignored
is_empty_file() {
	[ -s "$1" ] || return 0
	egrep -vq "^(#|[[:blank:]]*$)" "$1" && return 1 || return 0
}

# returns OK if $1 contains $2
strstr() {
	local a=$2
	[ "${1#*$a*}" = "$1" ] && return 1
	return 0
}

if is_yes "$FASTRC" || is_yes "$IN_SHUTDOWN"; then
	RC_LOGGING=no
fi

if is_no "$RC_LOGGING"; then
	initlog() {
		RESULT=0
		while [ "$1" != "${1##-}" ]; do
			case $1 in
			-c)
				shift
				$1
				RESULT=$?
				break
				;;
			*)
				shift
				;;
			esac
		done
		return $RESULT
	}
fi

kernelver() {
	typeset _x _y _z v old_IFS ver
	{
		read _x _y v _z
		old_IFS=$IFS
		IFS='.'
		set -- $v
		IFS=$old_IFS

		# strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
		ver=${3%%[-_]*}

		while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
		ver="$2$ver"
		while [ ${#ver} -lt 6 ]; do ver="0$ver"; done
		ver="$1$ver"
		while [ ${#ver} -lt 9 ]; do ver="0$ver"; done
		echo $ver
	} < /proc/version
}

kernelverser() {
	typeset _x _y _z v old_IFS ver
	{
		read _x _y v _z
		old_IFS=$IFS
		IFS='.'
		set -- $v
		IFS=$old_IFS
		ver=$2
		while [ ${#ver} -lt 3 ] ; do ver="0$ver" ; done
		ver="$1$ver"
		while [ ${#ver} -lt 6 ] ; do ver="0$ver" ; done
		echo $ver
	} </proc/version
}

kernelvermser() {
	typeset _x _y _z v old_IFS ver
	{
		read _x _y v _z
		old_IFS=$IFS
		IFS='.'
		set -- $v
		IFS=$old_IFS
		ver="$1$ver"
		while [ ${#ver} -lt 3 ] ; do ver="0$ver" ; done
		echo $ver
	} </proc/version
}

# Colors workaround
termput() {
	is_yes "$ISATTY" || return

	if is_yes "$FASTRC" || is_no "$TPUT"; then
		case "$1" in
		hpa)
			echo -ne "\033[$(($2+1))G"
			;;
		cuu*)
			echo -ne "\033[${2}A"
			;;
		el)
			echo -ne "\033[0K"
			;;
		setaf)
			typeset ISBOLD
			if [ -n "$3" ]; then
				ISBOLD="$3"
			else
				ISBOLD="$NOBOLD";
			fi
			is_yes "$COLOR_INIT" && echo -ne "\033[${ISBOLD};3${2}m"
			;;
		op)
			termput setaf $NORMAL
			;;
		esac
	else
		case "$1" in
		hpa | cuu* | el)
			tput "$@"
			;;
		setaf)
			if [ "$3" == "1" ]; then tput bold; else tput sgr0; fi
			is_yes "$COLOR_INIT" && tput setaf "$2"
			;;
		op)
			termput setaf $NORMAL
			;;
		esac
	fi
}

if [ ! -x /bin/printf ]; then
	# printf equivalent
	# FIXME: buggy when single or double quotes in message!
	printf() {
		typeset text m
		text="$1"
		shift
		if [ $# -gt 0 ]; then
			m="$1"
			shift
			while [ $# -gt 0 ]; do
				m="$m\",\"$1"
				shift
			done
		fi
		awk "BEGIN {printf \"$text\", \"$m\"; }"
	}
fi

# National language support function
nls() {
	typeset msg_echo nls_domain text message
	msg_echo='\n'
	nls_domain="$NLS_DOMAIN"
	while [ "$1" != "${1##-}" ]; do
		case "$1" in
		--nls-domain)
			shift
			nls_domain="$1"
			shift
			;;
		-n)
			msg_echo=''
			shift
			;;
		esac
	done
	message="$1"
	shift

	# empty message, so we return --misiek
	if [ -z "$message" ]; then
		echo -en "$msg_echo"
		return
	fi

	if is_yes "$GETTEXT"; then
		message=$(TEXTDOMAINDIR="/etc/sysconfig/locale" gettext -e --domain="${nls_domain:-rc-scripts}" "$message")
	fi

	printf "$message" "$@"
	echo -en "$msg_echo"
}

rc_splash() {
	typeset action

	action="$1"

	if ! is_no "$BOOT_SPLASH" && ! is_yes "$VSERVER"; then
		[ -x /bin/splash ] && /bin/splash "$action"
	fi

	: $((progress++))
}

msg_network_down() {
	nls "ERROR: Networking is down. %s can't be run." "$1" >&2
}

msg_starting() {
	show "Starting %s service" "$1"
}

msg_already_running() {
	nls "%s service is already running." "$1"
}

msg_stopping() {
	show "Stopping %s service" "$1"
}

msg_not_running() {
	nls "%s service is not running." "$1"
}

msg_reloading() {
	show "Reloading %s service" "$1"
}

msg_usage() {
	nls "Usage: %s" "$*"
}

# Some functions to handle PLD Linux-style messages
show() {
	typeset text
	typeset -i len

	if is_no "$FASTRC" && is_yes "$GETTEXT"; then
		text=$(nls -n "$@")
	else
		text=$(printf "$@")
	fi
	len=${#text}
	while [ $((len++)) -lt $INIT_COL ]; do
		text="$text."
	done
	if [ -n "$CHARS" ]; then
		termput setaf $CCHARS
		echo -n "$CHARS"
		termput op
	fi
	echo -n "$text"
}

deltext() {
	termput hpa $INIT_COL
}

# Displays message in square brackests ("[ DONE ]"). Takes two arguments.
# First is the text to display, second is color number to use (argument to
# tput setaf). If second argument is not given, default (2, green) will be
# used).
progress() {
	typeset COLOR
	if [ -n "$2" ]; then COLOR="$2"; else COLOR="$CDONE"; fi
	deltext
	echo -n "$(termput setaf $CBRACKETS)[$(termput setaf $COLOR) $(nls --nls-domain rc-scripts "$1") $(termput setaf $CBRACKETS)]$(termput op)"
}

busy() {
	echo -n "$_busy"
}

ok() {
	echo "$_ok"
}

started() {
	echo "$_started"
}

fail() {
	echo "$_fail"
	return 1
}

died() {
	echo "$_died"
	return 1
}

# Check if $pid (could be plural) are running
checkpid() {
	while [ "$1" ]; do
		[ -d "/proc/$1" ] && return 0
		shift
	done
	return 1
}

# - outside chroot get only those processes, which are outside chroot.
# - inside chroot get only those processes, which are inside chroot.
# - don't filter out pids which do not have corresponding running processes (process died etc)
# (note: some processes like named are chrooted but run outside chroot)
# - do nothing inside vserver
filter_chroot() {
	if is_yes "$VSERVER"; then
		echo $@
		return
	fi
	if [ $# -lt 1 -o ! -d /proc/1 ] ; then
		echo $@
		return
	fi
	local root_dir good_pids="" good_add_pid
	for root_pid in $@; do
		root_dir=$(resolvesymlink /proc/${root_pid}/root)
		if [ -n "$root_dir" ]; then
			good_add_pid=1
			if [ -n "${SYSTEM_CHROOTS}" ]; then
				for r_dir in ${SYSTEM_CHROOTS}; do
					echo "$root_dir" | grep -q "^${r_dir}" && good_add_pid=0
				done
			fi
			[ "$good_add_pid" -eq 1 ] && good_pids="$good_pids $root_pid"
		elif [ ! -d "/proc/$root_pid" ]; then
			good_pids="$good_pids $root_pid"
		fi
	done
	echo $good_pids
}

# Usage run_cmd Message command_to_run
run_cmd() {
	typeset exit_code errors message force_err
	typeset -i force_err=0
	typeset -i exit_code=0
	case "$1" in
	-a)
		force_err=1
		shift
		;;
	esac
	message=$1
	show "$message"; busy
	shift
	cd /
	if errors=$(
		export HOME=/tmp TMPDIR=/tmp
		if is_no "$RC_LOGGING"; then
			"$@" 2>&1
		else
			initlog -c "$*" 2>&1
		fi
		); then
		ok
		log_success "$1 $message"
	else
		fail
		log_failed "$1 $message"
		exit_code=1
	fi
	[ -n "$errors" ] && [ $exit_code -eq 1 -o $force_err -eq 1 ] && echo "$errors"
	return $exit_code
}

_daemon_set_ulimits() {
	local opt val ksh=${KSH_VERSION:+1}
	set -- ${SERVICE_LIMITS:-$DEFAULT_SERVICE_LIMITS}
	while [ $# -gt 0 ]; do
		opt=$1
		val=$2
		if [ "$ksh" ]; then
			case "$opt" in
			-Hu)
				opt=-Hp
			;;
			-Su)
				opt=-Sp
			;;
			-u)
				opt=-p
			;;
			esac
		fi
		ulimit $opt $val
		shift 2
	done
}

# A function to start a program (now it's useful on read-only filesystem too)
daemon() {
	typeset errors="" prog="" end="" waitname="" waittime=""
	typeset -i exit_code=0
	local nice=$SERVICE_RUN_NICE_LEVEL
	local fork user closefds pidfile

	while [ $# -gt 0 ]; do
		case $1 in
		'')
			msg_usage " daemon [--user user] [--fork] [--waitforname procname] [--waitfortime seconds] [+/-nicelevel] {program} <program args>"
			return 2
			;;
		--check)
			# for compatibility with redhat/mandrake
			nls "warning: --check option is ignored!"
			shift
			;;
		--user)
			shift
			[ "$1" != "root" ] && prog="/bin/su $1 -s /bin/sh -c \""
			user=$1
			;;
		--fork)
			fork=1
			prog="/usr/bin/setsid sh -c \""
			end='&'
			;;
		--closefds)
			closefds=1
			;;
		--waitforname)
			shift
			waitname="$1"
			;;
		--waitfortime)
			shift
			waittime="$1"
			;;
		--pidfile)
			shift
			pidfile="$1"
			;;
		-*|+*)
			nice=$1
			shift
			break
			;;
		*)
			break
			;;
		esac
		shift
	done
	# If command to execute ends with quotation mark, add remaining
	# arguments and close quotation.
	if [ "$prog" != "${prog%\"}" ]; then
		prog="$prog $*$end\""
	else
		prog="$prog $*$end"
	fi

	_daemon_set_ulimits

	[ -z "$DEFAULT_SERVICE_UMASK" ] && DEFAULT_SERVICE_UMASK=022
	[ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0

	# And start it up.
	busy
	cd /
	[ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" && echo $$ > "/dev/cpuset/${SERVICE_CPUSET}/tasks"
	if errors=$(
		umask ${SERVICE_UMASK:-$DEFAULT_SERVICE_UMASK};
		export USER=root HOME=/tmp TMPDIR=/tmp
		nice=${nice:-$DEFAULT_SERVICE_RUN_NICE_LEVEL}
		nice=${nice:-0}

		if [ "$closefds" = 1 ]; then
			exec 1>&-
			exec 2>&-
			exec 0>&-
		else
			exec 2>&1
		fi

		if is_no "$RC_LOGGING" ; then
			prog=$1; shift
			if [ ! -x $prog ]; then
				logger -t rc-scripts -p daemon.debug "daemon: Searching PATH for $prog, consider using full path in initscript"
				local a o=$IFS
				IFS=:
				for a in $PATH; do
					if [ -x $a/$prog ]; then
						prog=$a/$prog
						break
					fi
				done
				IFS=$o
			fi
			/sbin/start-stop-daemon -q --start \
				--nicelevel $nice \
				${pidfile:+--pidfile $pidfile} \
				${user:+-c $user} \
				${fork:+-b} \
				--exec "$prog" \
				-- ${1:+"$@"}
		else
			nice -n $nice initlog -c "$prog" 2>&1
		fi
		); then

		if [ -n "$waitname" -a -n "$waittime" ]; then
			# Save basename.
			base=${waitname##*/}
			# Find pid.
			pid=$(pidofproc "$waitname" "$pidfile")
			[ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
			i=0
			while [ "$i" -lt "$waittime" ]; do
				i=$((i + 1))
				checkpid $pid && sleep 1 || break
			done
		fi
		log_success "$1 startup"
		ok
	else
		exit_code=1
		fail
		log_failed "$1 startup"
		[ -n "$errors" ] && echo "$errors"
	fi
	return $exit_code
}

# A function to stop a program.
killproc() {
	typeset notset killlevel base pid pidfile result
	# Test syntax.
	if [ $# = 0 ]; then
		msg_usage " killproc {program} [signal]"
		return 2
	fi

	while [ "$1" != "${1##-}" ]; do
		case $1 in
		--pidfile)
			shift
			pidfile="$1"
			shift
			;;
		--waitforname)
			shift
			waitname="$1"
			shift
			;;
		--waitfortime)
			shift
			waittime="$1"
			shift
			;;
		esac
	done

	busy

	typeset -i notset=0
	# check for second arg to be kill level
	if [ -n "$2" ] ; then
		killlevel=$2
	else
		notset=1
		killlevel="-9"
	fi

	# Save basename.
	base=${1##*/}

	# Find pid.
	pid=$(pidofproc "$1" "$pidfile")
	[ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")

	# Kill it.
	if [ -n "$pid" -a "$pid" != "$$" ] && checkpid $pid 2>&1 ; then
		if [ "$notset" = "1" ] ; then
			if checkpid $pid 2>&1; then
				# TERM first, then KILL if not dead
				kill -TERM $pid
				usleep 100000
				if checkpid $pid && sleep 1 &&
					checkpid $pid && sleep 3 &&
					checkpid $pid; then
					kill -KILL $pid
					usleep 100000
				fi
			fi
			checkpid $pid
			result=$?
			if [ "$result" -eq 0 ]; then
				fail
				log_failed "$1 shutdown"
			else
				ok
				log_success "$1 shutdown"
			fi
			result=$(( ! $result ))
		else
			# use specified level only
			if checkpid $pid > /dev/null 2>&1; then
				kill $killlevel $pid
				result=$?
				if [ "$result" -eq 0 ]; then
					ok
					log_success "$1 got $killlevel"
				else
					result=7
					fail
					log_failed "$1 didn't get $killlevel"
				fi
			else
				result=7
				died
				log_failed "$1 shutdown"
			fi
		fi
	else
		died
		log_failed "$1 shutdown"
		result=7
	fi

	if [ -n "$waitname" -a -n "$waittime" ]; then
		# Save basename.
		base=${waitname##*/}
		# Find pid.
		pid=$(pidofproc "$waitname" "$pidfile")
		[ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
		i=0
		while [ "$i" -lt "$waittime" ]; do
			i=$(( i + 1 ))
			checkpid $pid && sleep 1 || break
		done
	fi

	# Remove pid file if any.
	if [ "$notset" = "1" ]; then
		rm -f /var/run/${base}.pid
	fi

	return $result
}

# A function to find the pid of a program.
pidofproc() {
	typeset pid pidfile base=${1##*/}
	pidfile="$base.pid"
	[ -n "$2" ] && pidfile="$2"

	# Test syntax.
	if [ $# = 0 ] ; then
		msg_usage " pidofproc {program}"
		return 2
	fi

	# First try pidfile or "/var/run/*.pid"
	if [[ "$pidfile" = /* ]]; then
		pidfile="${pidfile}"
	else
		pidfile="/var/run/${pidfile}";
	fi
	if [ -f "${pidfile}" ] ; then
		typeset p pid
		pid=
		for p in $(< "${pidfile}"); do
			[ -z "$(echo "$p" | awk '{gsub(/[0-9]/,"");print;}')" ] && pid="$pid $p"
		done
	fi

	# Next try "pidof"
	[ -z "$pid" ] && pidof -o $$ -o $PPID -o %PPID -x "$1"
	pid=$(filter_chroot "$pid")
	echo $pid
}

status() {
	typeset pid subsys daemon cpuset_msg
	subsys=$1
	daemon=${2:-$subsys}
	local base=${daemon##*/}

	# Test syntax.
	if [ $# = 0 ] ; then
		msg_usage " status {subsys} [{daemon}]"
		return 2
	fi

	# First try "pidof"
	pid=$(pidof -o $$ -o $PPID -o %PPID -x $daemon)
	pid=$(filter_chroot "$pid")

	if [ "$pid" ]; then
		cpuset_msg="..."
		if [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" ]; then
			if $(grep -q "$pid" "/dev/cpuset/${SERVICE_CPUSET}/tasks"); then
				cpuset_msg=$(nls " in cpuset %s..." "$SERVICE_CPUSET")
			else
				cpuset_msg=$(nls " outside of configured cpuset %s..." "$SERVICE_CPUSET")
			fi
		fi
		nls "%s (pid %s) is running%s" "$daemon" "$pid" "$cpuset_msg"
		return 0
#	else
#		pid=$(ps ax | awk 'BEGIN { prog=ARGV[1]; ARGC=1 }
#		     { if ((prog == $5) || (("(" prog ")") == $5) ||
#			(("[" prog "]") == $5) ||
#			((prog ":") == $5)) { print $1 ; exit 0 } }' $1)
#		if [ "$pid" != "" ]; then
#			cpuset_msg="..."
#			if [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" ]; then
#				if $(grep -q "$pid" "/dev/cpuset/${SERVICE_CPUSET}/tasks"); then
#					cpuset_msg=$(nls " in cpuset %s..." "$SERVICE_CPUSET")
#				else
#					cpuset_msg=$(nls " outside of configured cpuset %s..." "$SERVICE_CPUSET")
#				fi
#			fi
#			nls "%s (pid %s) is running%s" "$daemon" "$pid" "$cpuset_msg"
#			return 0
#		fi
	fi

	# Next try "/var/run/*.pid" files
	if [ -f /var/run/${base}.pid ]; then
		read pid < /var/run/${base}.pid
		pid=$(filter_chroot "$pid")
		if [ "$pid" != "" ]; then
			nls "%s dead but pid file exists" "$subsys"
			return 1
		fi
	fi

	# See if /var/lock/subsys/$subsys exists
	if [ -f /var/lock/subsys/$subsys ]; then
		nls "%s dead but subsys locked" "$subsys"
		return 2
	fi
	nls "%s is stopped" "$subsys"
	return 3
}

# Confirm whether we really want to run this service
confirm() {
	typeset answer
	nls -n "Start service %s (Y)es/(N)o/(C)ontinue? [Y] " "$1"
	read answer
	case $answer in
	y|Y|t|T|j|J|"")
		return 0
		;;
	c|C|k|K|w|W)
		return 2
		;;
	n|N)
		return 1
		;;
	*)
		confirm $1
		return $?
		;;
	esac
}

# module is needed (ie. is requested, is available and isn't loaded already)
is_module() {
	# module name without .o at end
	if ! lsmod | grep -q "$1"; then
		if ls -R /lib/modules/$(uname -r)/ 2> /dev/null | grep -q "${1}.\(\|k\)o\(\|.gz\)"; then
			# true
			return 0
		fi
	fi
	# false
	return 1
}

_modprobe() {
	typeset parsed single die args foo result
	parsed=no
	while is_no "$parsed" ; do
		case "$1" in
		"single")
			single=yes
			shift
			;;
		"die")
			die=yes
			shift
			;;
		-*)
			args="$args $1"
			shift
			;;
		*)
			parsed=yes
			;;
		esac
	done
	if is_yes "${single}" ; then
		foo="$@"
		show "Loading %s kernel module(s)" "$foo"
		busy
	fi
	if [ -x /sbin/modprobe ] ; then
		/sbin/modprobe -s $args "$@"
		result=$?
	else
		deltext ; fail
		result=1
	fi
	if is_yes "${single}" ; then
		deltext
		if [ $result == "0" ] ; then
			is_yes "$single" && ok
		else
			fail
			if is_yes "$die" ; then
				nls "Could not load %s kernel module(s)" "$@"
				exit 1
			fi
		fi
	fi
}

if is_no "$RC_LOGGING"; then
	log_success() {
		:
	}

	log_failed() {
		:
	}
else
	log_success() {
		initlog -n $0 -s "$1 $2" -e 1
	}

	log_failed() {
		initlog -n $0 -s "$1 $2" -e 2
	}
fi

# Check if any flavor of portmapper is running
check_portmapper() {
	typeset RPCINFO

	if [ -x /usr/sbin/rpcinfo ]; then
		if /usr/sbin/rpcinfo -p localhost >/dev/null 2>/dev/null; then
			return 0
		else
			return 1
		fi
	elif [ -x /sbin/pidof ]; then
		[ -z "$(/sbin/pidof portmap)" -a \
			-z "$(/sbin/pidof rpcbind)" ] && return 1
	fi
	return 0
}

rc_cache_init() {
	# If we have cachefile, use it.
	# If we don't, create memory variables and try to save silently,
	local cachefile='/var/cache/rc-scripts/msg.cache'

	local term
	if is_yes "$ISATTY"; then
		term=$TERM
	else
		term=dumb
	fi

	# We create $check variable which is used to invalidate the cache.
	# The $check contains user locale and terminal.
	local check="$term.$LC_MESSAGES"

	if [ -f "$cachefile" -a "$cachefile" -nt /etc/sysconfig/system -a "$cachefile" -nt /etc/sysconfig/init-colors ]; then
		if . "$cachefile" 2>/dev/null; then
			if [ "$check" = "$_check" ]; then
				return
			fi
		fi
	fi

	# primitive caching
	_busy=$(progress "BUSY" "$CBUSY")
	_ok=$(progress "DONE")
	_started=$(progress "WORK")
	_fail=$(progress "FAIL" "$CFAIL")
	_died=$(progress "DIED" "$CFAIL")

	# we don't use heredoc, as ksh attempts to create tempfile then
	(> "$cachefile" ) 2>/dev/null || return
	echo "_busy='$_busy';" >> "$cachefile"
	echo "_ok='$_ok';" >> "$cachefile"
	echo "_started='$_started';" >> "$cachefile"
	echo "_fail='$_fail';" >> "$cachefile"
	echo "_died='$_died';" >> "$cachefile"
	echo "_check='$check';" >> "$cachefile"
}

rc_gettext_init() {
	if [ -z "$GETTEXT" ]; then
		if [ -x /bin/gettext -o -x /usr/bin/gettext ]; then
			GETTEXT=yes
		else
			GETTEXT=no
		fi
	fi

	if [ -z "$TPUT" ]; then
		if [ -d /usr/share/terminfo ] && [ -x /usr/bin/tput -o -x /bin/tput ] ; then
			TPUT=yes
			# check if we are on proper terminal
			tput longname >/dev/null 2>&1 || TPUT=no
		else
			TPUT=no
		fi
	fi
}

rc_gettext_init
rc_cache_init

#/*
# * Local variables:
# * mode: sh
# * indent-tabs-mode: notnil
# * End:
# *
# */