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Current Path : /etc/rc0.d/
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Current File : //etc/rc0.d/K08ifupdown

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          ifupdown
# Required-Start:    ifupdown-clean
# Required-Stop:     $local_fs
# Default-Start:     S
# Default-Stop:      0 6
# Short-Description: Prepare the system for taking up interfaces.
### END INIT INFO

[ -x /sbin/ifup ] || exit 0
[ -x /sbin/ifdown ] || exit 0

. /lib/lsb/init-functions

MYNAME="${0##*/}"
report() { echo "${MYNAME}: $*" ; }
report_err() { log_failure_msg "$*" ; }
RUN_DIR=/etc/network/run
[ -r /etc/default/ifupdown ] && . /etc/default/ifupdown

# Note: The state file location is hardcoded in ifup|ifdown
IFSTATE=/etc/network/run/ifstate

myreadlink () {
  dest="${1%/}"
  extras=""

  while [ "$dest" != "" ]; do
    if [ -d "$dest" ]; then
      cd "$dest"
      dest=$(/bin/pwd)
      break
    fi

    if [ -L "$dest" ]; then
      d2=$(readlink "$dest")
      if [ "${d2#/}" = "$d2" ]; then
        dest="${dest%/*}/$d2"
      else
        dest="$d2"
      fi
    fi

    while [ ! -e "$dest" ]; do
      extras="${dest##*/}/$extras"
      if [ "${extras%%/*}" = ".." ]; then return 1; fi
      destx="${dest%/*}"
      if [ "$destx" = "$dest" ]; then destx=""; fi
      dest="$destx"
    done
  done
  dest="$dest/$extras"
  echo "${dest%/}"
}

case "$1" in
  start|restart)
    if [ "$2" ]; then
      report_err "Arguments to '$1' command not accepted"
      exit 3
    fi
    log_begin_msg "Setting up networking..."

    # if /etc/network/run is a symlink to a directory that doesn't exist,
    # create it.

    if [ -L "$RUN_DIR" ] && [ ! -d "$RUN_DIR" ] ; then
      runmkdir="$(myreadlink "$RUN_DIR")"
      if [ ! "$runmkdir" ] ; then
        report_err "Cannot create target of /etc/network/run"
        log_end_msg 1
        exit 1
      fi
      if ! mkdir -p "$runmkdir"; then
        report_err "Failure creating directory $runmkdir"
        log_end_msg 1
        exit 1
      fi
    fi

    # Create the state file
    # Doing this also signals that ifupdown is available for use
    if [ ! -r "$IFSTATE" ]; then
      if ! : > "$IFSTATE" ; then
        report_err "Failure initializing $IFSTATE"
        log_end_msg 1
        exit 1
      fi 
    fi

    log_end_msg 0
    exit 0
    ;;

  stop)
    if [ "$2" ]; then
      report_err "Arguments to '$1' command not accepted"
      exit 3
    fi
    if [ -x /etc/init.d/ifupdown-clean ]; then
      /etc/init.d/ifupdown-clean start
    fi
    ;;

  force-reload)
    ;;

  *)
    echo "Usage: $0 {start|stop|restart|force-reload}" >&2
    exit 3
    ;;
esac

exit 0