launchd/src/rc.common

   1 ##
   2 # Common setup for startup scripts.
   3 ##
   4 # Copyright 1998-2002 Apple Computer, Inc.
   5 ##
   6
   7 #######################
   8 # Configure the shell #
   9 #######################
  10
  11 ##
  12 # Be strict
  13 ##
  14 #set -e
  15 set -u
  16
  17 ##
  18 # Set command search path
  19 ##
  20 PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/libexec:/System/Library/CoreServices; export PATH
  21
  22 ##
  23 # Set the terminal mode
  24 ##
  25 #if [ -x /usr/bin/tset ] && [ -f /usr/share/misc/termcap ]; then
  26 #    TERM=$(tset - -Q); export TERM
  27 #fi
  28
  29 ####################
  30 # Useful functions #
  31 ####################
  32
  33 ##
  34 # Determine if the network is up by looking for any non-loopback
  35 # internet network interfaces.
  36 ##
  37 CheckForNetwork()
  38 {
  39     local test
  40
  41     if [ -z "${NETWORKUP:=}" ]; then
  42         test=$(ifconfig -a inet 2>/dev/null | sed -n -e '/127.0.0.1/d' -e '/0.0.0.0/d' -e '/inet/p' | wc -l)
  43         if [ "${test}" -gt 0 ]; then
  44             NETWORKUP="-YES-"
  45         else
  46             NETWORKUP="-NO-"
  47         fi
  48     fi
  49 }
  50
  51 ##
  52 # Process management
  53 ##
  54 GetPID ()
  55 {
  56     local program="$1"
  57     local pidfile="${PIDFILE:=/var/run/${program}.pid}"
  58     local     pid=""
  59
  60     if [ -f "${pidfile}" ]; then
  61         pid=$(head -1 "${pidfile}")
  62         if ! kill -0 "${pid}" 2> /dev/null; then
  63             echo "Bad pid file $pidfile; deleting."
  64             pid=""
  65             rm -f "${pidfile}"
  66         fi
  67     fi
  68
  69     if [ -n "${pid}" ]; then
  70         echo "${pid}"
  71         return 0
  72     else
  73         return 1
  74     fi
  75 }
  76
  77 ##
  78 # Generic action handler
  79 ##
  80 RunService ()
  81 {
  82     case $1 in
  83       start  ) StartService   ;;
  84       stop   ) StopService    ;;
  85       restart) RestartService ;;
  86       *      ) echo "$0: unknown argument: $1";;
  87     esac
  88 }
  89
  90 ##########################
  91 # Get host configuration #
  92 ##########################
  93 . /etc/hostconfig