rc.d/init.d/functions

   1 # functions     This file contains functions to be used by most or all
   2 #               shell scripts in the /etc/init.d directory.
   3 #
   4 # Version:      @(#) /etc/init.d/functions $Revision: 1.4 $ $Date: 1999/06/14 20:12:05 $
   5 #
   6 # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
   7 # Hacked by:    Greg Galloway and Marc Ewing
   8 # Modified for PLD by Marek Obuchowicz <elephant@shadow.eu.org>
   9 #
  10
  11 # First set up a default search path.
  12 PATH="/sbin:/usr/sbin:/bin:/usr/bin"; export PATH
  13
  14 # Some functions to handle PLD-style messages
  15 function show {
  16   text="$*".............................................
  17   echo -ne `echo $text | cut -c1-45`
  18 }
  19
  20 function busy {
  21   echo -ne "`tput setaf 6`[`tput setaf 5` BUSY `tput setaf 6`]`tput setaf 7`"
  22 }
  23
  24 function ok {
  25   echo -ne "`tput setaf 6`[`tput setaf 2` DONE `tput setaf 6`]`tput setaf 7`"
  26 }
  27
  28 function fail {
  29   echo -ne "`tput setaf 6`[`tput setaf 1` FAIL `tput setaf 6`]`tput setaf 7`"
  30 }
  31
  32 function died {
  33   echo -ne "`tput setaf 6`[`tput setaf 1` DIED `tput setaf 6`]`tput setaf 7`"
  34 }
  35
  36 function deltext {
  37   echo -ne '\b\b\b\b\b\b\b\b'
  38 }
  39
  40 # A function to start a program.
  41 daemon() {
  42         TMPFILE=`mktemp /tmp/init-XXXXXX`
  43
  44         nicelevel=0
  45         # Test syntax.
  46         case $1 in
  47             '')    echo '$0: Usage: daemon [+/-nicelevel] {program}'
  48                    return 1;;
  49             -*|+*) nicelevel=$1
  50                    shift;;
  51         esac
  52
  53         # make sure it doesn't core dump anywhere; while this could mask
  54         # problems with the daemon, it also closes some security problems
  55         ulimit -c 0
  56
  57         # And start it up.
  58         busy
  59         if nice -n $nicelevel "$@" &> $TMPFILE; then
  60           deltext
  61           ok
  62         else
  63           deltext
  64           fail
  65           cat $TMPFILE
  66         fi
  67         rm -f $TMPFILE
  68 }
  69
  70 # A function to stop a program.
  71 killproc() {
  72         # Test syntax.
  73         if [ $# = 0 ]; then
  74                 echo "Usage: killproc {program} [signal]"
  75                 return 1
  76         fi
  77
  78         busy
  79
  80         TMPFILE=`mktemp /tmp/init-XXXXXX`
  81
  82         notset=0
  83         # check for second arg to be kill level
  84         if [ "$2" != "" ] ; then
  85                 killlevel=$2
  86         else
  87                 notset=1
  88                 killlevel="-9"
  89         fi
  90
  91         # Save basename.
  92         base=`basename $1`
  93
  94         # Find pid.
  95         pid=`pidofproc $base`
  96
  97         # Kill it.
  98         if [ "$pid" != "" ] ; then
  99                 if [ "$notset" = 1 ] ; then
 100                         # TERM first, then KILL if not dead
 101                         kill -TERM $pid &> $TMPFILE
 102                         usleep 100000
 103                         dead=`ps -o pid= $pid`
 104                         if [ "$dead" != "" ]; then
 105                                 sleep 3
 106                                 kill -KILL $pid &> $TMPFILE
 107                         fi
 108                 # use specified level only
 109                 else
 110                         kill $killlevel $pid &> $TMPFILE
 111                 fi
 112         else
 113           rm -f /var/run/$base.pid
 114           deltext
 115           fail
 116           return
 117         fi
 118
 119         # Remove pid file if any.
 120         rm -f /var/run/$base.pid
 121
 122         if [ -z "`cat $TMPFILE`" ]; then
 123                 deltext
 124                 ok
 125         else
 126                 deltext
 127                 died
 128         fi
 129         rm -f $TMPFILE
 130 }
 131
 132 # A function to find the pid of a program.
 133 pidofproc() {
 134         # Test syntax.
 135         if [ $# = 0 ] ; then
 136                 echo "Usage: pidofproc {program}"
 137                 return 1
 138         fi
 139
 140         # First try "/var/run/*.pid" files
 141         if [ -f /var/run/$1.pid ] ; then
 142                 pid=`head -1 /var/run/$1.pid`
 143                 if [ "$pid" != "" ] ; then
 144                         echo $pid
 145                         return 0
 146                 fi
 147         fi
 148
 149         # Next try "pidof"
 150         #pid=`pidof $1`
 151         if [ "$pid" != "" ] ; then
 152                 echo $pid
 153                 return 0
 154         fi
 155
 156         # Finally try to extract it from ps
 157         echo `ps -C $1 -o pid=`
 158         return 0
 159 }
 160
 161 status() {
 162         # Test syntax.
 163         if [ $# = 0 ] ; then
 164                 echo "Usage: status {program}"
 165                 return 1
 166         fi
 167
 168         # First try "pidof"
 169         pid=`pidof $1`
 170         if [ "$pid" != "" ] ; then
 171                 echo "$1 (pid $pid) is running..."
 172                 return 0
 173         else
 174                 pid=`echo \`ps -C $1 -o pid= \``
 175                 if [ "$pid" != "" ] ; then
 176                         echo  "$1 (pid $pid) is running..."
 177                         return 0
 178                 fi
 179         fi
 180
 181         # Next try "/var/run/*.pid" files
 182         if [ -f /var/run/$1.pid ] ; then
 183                 pid=`head -1 /var/run/$1.pid`
 184                 if [ "$pid" != "" ] ; then
 185                         echo "$1 dead but pid file exists"
 186                         return 1
 187                 fi
 188         fi
 189         # See if /var/lock/subsys/$1 exists
 190         if [ -f /var/lock/subsys/$1 ]; then
 191                 echo "$1 dead but subsys locked"
 192                 return 2
 193         fi
 194         echo "$1 is stopped"
 195         return 3
 196 }