- added template .cvsignore.

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

#!/bin/bash
#
# functions	This file contains functions to be used by most or all
#		shell scripts in the /etc/init.d directory.
#
# Version:	@(#) /etc/init.d/functions 1.01 26-Oct-1993
#
# Author:	Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
# Hacked by:    Greg Galloway and Marc Ewing
# Modified for PLD by Marek Obuchowicz <elephant@shadow.eu.org>
#

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

# Some functions to handle PLD-style messages
function show() {
  text="$*".............................................
  echo -ne `echo $text | cut -c1-45`
}

function busy() {
  echo -ne '\e[0;36m[\e[0;35m BUSY \e[0;36m]\e[0;37m'
}

function ok() {
  echo -e '\e[0;36m[\e[0;32m DONE \e[0;36m]\e[0;37m'
}

function fail() {
  echo -e '\e[0;36m[\e[0;31m FAIL \e[0;36m]\e[0;37m'
}

function died() {
  echo -e '\e[0;36m[\e[0;31m DIED \e[0;36m]\e[0;37m'
}

function deltext() {
  echo -ne '\b\b\b\b\b\b\b\b'
}

# A function to start a program.
daemon() {
	TMPFILE=`mktemp /tmp/init-XXXXXX`
	
	nicelevel=0
	# Test syntax.
	case $1 in
	    '')    echo '$0: Usage: daemon [+/-nicelevel] {program}'
	           return 1;;
	    -*|+*) nicelevel=$1
	           shift;;
	esac

	# make sure it doesn't core dump anywhere; while this could mask
	# problems with the daemon, it also closes some security problems
	ulimit -c 0

	# And start it up.
	busy
	if nice -n $nicelevel "$@" &> $TMPFILE; then
	  deltext
	  ok
	else
	  deltext
	  fail
	  cat $TMPFILE
	fi
	rm -f $TMPFILE
}

# A function to stop a program.
killproc() {
	# Test syntax.
	if [ $# = 0 ]; then
		echo "Usage: killproc {program} [signal]"
		return 1
	fi

	busy
	
	TMPFILE=`mktemp /tmp/init-XXXXXX`
	
	notset=0
	# check for second arg to be kill level
	if [ "$2" != "" ] ; then
		killlevel=$2
	else
		notset=1
		killlevel="-9"
	fi

        # Save basename.
        base=`basename $1`

        # Find pid.
        pid=`pidofproc $base`

        # Kill it.
        if [ "$pid" != "" ] ; then
		if [ "$notset" = 1 ] ; then
			# TERM first, then KILL if not dead
			kill -TERM $pid &> $TMPFILE
			usleep 100000
			dead=`ps aux | awk '{print $2}' | grep $pid`
			if [ "$dead" != "" ]; then
				sleep 3
				kill -KILL $pid &> $TMPFILE
			fi
		# use specified level only
		else
	                kill $killlevel $pid &> $TMPFILE
		fi
	else
	  rm -f /var/run/$base.pid
	  deltext
	  fail
	  return
	fi

        # Remove pid file if any.
        rm -f /var/run/$base.pid
	
	if [ -z "`cat $TMPFILE`" ]; then
		deltext
		ok
	else
		deltext
		died	
	fi
	rm -f $TMPFILE
}

# A function to find the pid of a program.
pidofproc() {
	# Test syntax.
	if [ $# = 0 ] ; then
		echo "Usage: pidofproc {program}"
		return 1
	fi

	# First try "/var/run/*.pid" files
	if [ -f /var/run/$1.pid ] ; then
	        pid=`head -1 /var/run/$1.pid`
	        if [ "$pid" != "" ] ; then
	                echo $pid
	                return 0
	        fi
	fi

	# Next try "pidof"
	pid=`pidof $1`
	if [ "$pid" != "" ] ; then
	        echo $pid
	        return 0
	fi

	# Finally try to extract it from ps
	ps auxw | awk 'BEGIN { prog=ARGV[1]; ARGC=1 } 
			   { if ((prog == $11) || (("(" prog ")") == $11) ||
			   ((prog ":") == $11)) { print $2 } }' $1
}
status() {
	# Test syntax.
	if [ $# = 0 ] ; then
		echo "Usage: status {program}"
		return 1
	fi

	# First try "pidof"
	pid=`pidof $1`
	if [ "$pid" != "" ] ; then
	        echo "$1 (pid $pid) is running..."
	        return 0
        else
                pid=`ps auxww | grep $1 | egrep -v grep\|$0 | awk '{print $2}'`
                if [ "$pid" != "" ] ; then
                        echo "$1 (pid $pid) is running..."
                        return 0
                fi
	fi

	# Next try "/var/run/*.pid" files
	if [ -f /var/run/$1.pid ] ; then
	        pid=`head -1 /var/run/$1.pid`
	        if [ "$pid" != "" ] ; then
	                echo "$1 dead but pid file exists"
	                return 1
	        fi
	fi
	# See if /var/lock/subsys/$1 exists
	if [ -f /var/lock/subsys/$1 ]; then
		echo "$1 dead but subsys locked"
		return 2
	fi
	echo "$1 is stopped"
	return 3
}