621 lines
13 KiB
Plaintext
621 lines
13 KiB
Plaintext
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#!/bin/sh
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#
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# functions This file contains functions to be used by most or all
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# shell scripts in the /etc/init.d directory.
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#
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# Based on functions scripts from LFS-3.1 and RedHat/Fedora
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# Splash functions added by Silvan Calarco <silvan.calarco@mambasoft.it>
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# Modified for LSB and dash compliance by Davide Madrisan <davide.madrisan@gmail.com>
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TEXTDOMAIN=initscripts
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umask 022
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# Set up a default search path.
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PATH="/sbin:/usr/sbin:/bin:/usr/bin"
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export PATH
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# Get a sane screen width.
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[ -z "${COLUMNS:-}" ] && COLUMNS=80
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[ -z "${CONSOLETYPE:-}" ] && CONSOLETYPE="`/sbin/consoletype`"
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COL=$(( $COLUMNS - 10 ))
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WCOL=$(( $COLUMNS - 30 ))
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if [ -z "${BOOTUP:-}" ]; then
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if [ "$CONSOLETYPE" = "serial" ]; then
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BOOTUP=serial
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MOVE_TO_COL=
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MOVE_TO_WCOL=
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MOVE_TO_LCOL=
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MOVE_CURS_UP=
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SETCOLOR_NORMAL=
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SETCOLOR_SUCCESS=
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SETCOLOR_WARNING=
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SETCOLOR_FAILURE=
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else
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BOOTUP=color
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MOVE_TO_COL="/bin/echo -en \\033[${COL}G"
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MOVE_TO_WCOL="/bin/echo -en \\033[${WCOL}G"
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MOVE_TO_LCOL="/bin/echo -en \\033[0G"
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MOVE_CURS_UP="/bin/echo -en \\033[A"
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SETCOLOR_NORMAL="/bin/echo -en \\033[0;39m"
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SETCOLOR_SUCCESS="/bin/echo -en \\033[1;32m"
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SETCOLOR_WARNING="/bin/echo -en \\033[1;33m"
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SETCOLOR_FAILURE="/bin/echo -en \\033[1;31m"
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fi
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fi
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if [ "${BOOTUP:-}" != "verbose" ]; then
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INITLOG_ARGS="-q"
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else
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INITLOG_ARGS=
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fi
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if [ -e /bin/plymouth -a -e /sbin/plymouthd ]; then
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PLYMOUTH=/bin/plymouth
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PLYMOUTHD=/sbin/plymouthd
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else
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PLYMOUTH=/bin/true
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PLYMOUTHD=/bin/true
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fi
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# Check if $pid (could be plural) are running
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checkpid ()
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{
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local i
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for i in $*; do
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[ -d "/proc/$i" ] && return 0
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done
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return 1
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}
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#function getpids
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#{
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# # save basename
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# base=${1##*/}
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#
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# pidlist=$(pidof -o $$ -o $PPID -x $base)
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# pidlist=$(for p in $pidlist; do echo $p; done | sort)
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#}
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# function:
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# __pids_var_run {program} [pidfile]
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# description:
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# Set $pid to pids from /var/run* for {program}.
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# $pid should be declared local in the caller.
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# Returns LSB exit code for the 'status' action.
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__pids_var_run ()
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{
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local base=${1##*/}
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local pid_file=${2:-/var/run/$base.pid}
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pid=
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if [ -f "$pid_file" ] ; then
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local line p
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read line < "$pid_file"
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for p in $line ; do
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[ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
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done
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if [ -n "$pid" ]; then
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return 0
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fi
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return 1 # "Program is dead and /var/run pid file exists"
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fi
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return 3 # "Program is not running"
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}
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# function:
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# __pids_pidof {program}
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# description:
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# Output PIDs of matching processes, found using pidof.
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__pids_pidof ()
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{
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/bin/pidof -o $$ -o $PPID -o %PPID -x "$1" || \
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/bin/pidof -o $$ -o $PPID -o %PPID -x "${1##*/}"
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}
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# function:
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# daemon {args} [+/-nicelevel] {program}
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# description:
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# A function to start a program
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daemon ()
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{
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# test syntax
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local gotbase= force=
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local base= user= nice= bg= pid= pidfile=
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nicelevel=0
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while [ "$1" != "${1##[-+]}" ]; do
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case $1 in
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'') echo $"daemon: Usage: daemon {args} [+/-nicelevel] {program}"
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return 1
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;;
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--check)
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base=$2
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gotbase="yes"
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shift 2
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;;
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--check=?*)
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base=${1#--check=}
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gotbase="yes"
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shift
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;;
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--user)
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user=$2
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shift 2
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;;
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--user=?*)
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user=${1#--user=}
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shift
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;;
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--force)
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force="force"
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shift
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;;
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--pidfile=?*)
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pidfile=${1#--pidfile=}
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shift
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;;
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[-+][0-9]*)
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nice="nice -n $1"
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shift
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;;
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*) echo $"daemon: Usage: daemon {args} [+/-nicelevel] {program}"
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return 1 ;;
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esac
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done
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# save basename
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[ -z "$gotbase" ] && base=${1##*/}
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[ -z "$pidfile" ] && pidfile="/var/run/${base}.pid"
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# see if it's already running. Look *only* at the pid file
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if [ -f $pidfile ]; then
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local line p
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read line < $pidfile
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for p in $line ; do
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[ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
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done
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fi
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[ -n "${pid:-}" -a -z "${force:-}" ] && return 0
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# make sure it doesn't core dump anywhere unless requested
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ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0} >/dev/null 2>&1
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# if they set NICELEVEL in /etc/sysconfig/foo, honor it
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[ -n "$NICELEVEL" ] && nice="nice -n $NICELEVEL"
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# echo daemon
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[ "${BOOTUP:-}" = "verbose" -a -z "$LSB" ] && echo -n " $base"
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# and start it up
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if [ -z "$user" ]; then
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$nice initlog $INITLOG_ARGS -c "$*"
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else
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$nice initlog $INITLOG_ARGS -c "su -s /bin/bash - $user -c \"$*\""
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fi
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[ "$?" -eq 0 ] && success $"$base startup" || failure $"$base startup"
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}
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# function:
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# killproc [-p pidfile] {program} [signal]
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# description:
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# A function to stop a program (LSB 2.x compliant).
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killproc ()
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{
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TEMP=`LANG=C POSIXLY_CORRECT=1 getopt "p:" $*`
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if [ $? -ne 0 -o $# -eq 0 ]; then
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echo $"Usage: killproc [-p <pidfile>] pathname [signal]"
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return 1
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fi
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eval set -- "$TEMP"
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local pid_file
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while :; do
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case $1 in
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-p) pid_file=$2; shift ;;
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--) shift; break ;;
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*) echo $"Usage: killproc [-p <pidfile>] pathname [signal]"
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return 1 ;;
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esac
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shift
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done
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local base=${1##*/}
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# Check for second arg to be kill level.
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local signal=${2:-}
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[ -z "$pid_file" ] && pid_file=/var/run/$base.pid
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# Find pid.
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local retcode=0 pid
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__pids_var_run "$1" "$pid_file"
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if [ ! -e "$pid_file" -a -z "$pid" ]; then
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pid="$(__pids_pidof "$1")"
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fi
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# Kill it.
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if [ "${pid:-}" ] ; then
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# Use specified level only.
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if [ "$signal" ]; then
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if checkpid $pid 2>&1; then
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kill $signal $pid >/dev/null 2>&1
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retcode=$?
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else
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retcode=1
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fi
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else
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if checkpid $pid 2>&1; then
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# TERM first, then KILL if not dead
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kill -s TERM $pid >/dev/null 2>&1
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usleep 100000
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if checkpid $pid && sleep 1 &&
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checkpid $pid && sleep 3 &&
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checkpid $pid ; then
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kill -s KILL $pid >/dev/null 2>&1
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usleep 100000
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fi
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checkpid $pid
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retcode=$((! $? ))
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fi
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fi
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else
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[ "$signal" ] && retcode=1
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fi
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[ "$retcode" -eq 0 ] &&
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success $"$base shutdown" || failure $"$base shutdown"
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# Remove pid file if any.
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rm -f $pidfile >/dev/null 2>&1
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return $retcode
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}
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# function:
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# pidfileofproc {program}
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# description:
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# A function to find the pid of a program. Looks *only* at the pidfile.
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pidfileofproc ()
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{
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local base=${1##*/}
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# Test syntax.
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if [ "$#" = 0 ] ; then
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echo $"Usage: pidfileofproc {program}"
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return 1
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fi
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__pids_var_run "$1"
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[ -n "$pid" ] && echo $pid
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return 0
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}
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# function:
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# pidofproc [-p pidfile] {program}
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# description:
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# A function to find the pid of a program (LSB 2.x compliant).
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pidofproc ()
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{
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TEMP=`LANG=C POSIXLY_CORRECT=1 getopt "p:" $*`
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if [ $? -ne 0 -o $# -eq 0 ]; then
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echo $"Usage: pidofproc [-p <pidfile>] {program}"
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return 1
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fi
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eval set -- "$TEMP"
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local pid_file
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while :; do
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case $1 in
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-p) pid_file=$2; shift ;;
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--) shift; break ;;
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*) echo $"Usage: pidofproc [-p <pidfile>] {program}"
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return 1 ;;
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esac
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shift
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done
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local base=${1##*/} rc
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if [ -z "$pid_file" ]; then
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pid_file=/var/run/$base.pid
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else
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# Assume program is stopped
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[ -f "$pid_file" ] || return 3
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fi
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if [ -f "$pidfile" ]; then
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__pids_var_run "$1" "$pid_file"
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rc=$?
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if [ -n "$pid" ]; then
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echo $pid
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return 0
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else
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return 1 # Dead and /var/run pid file exists
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fi
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elif [ -x /bin/pidof ]; then
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__pids_pidof "$1"
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[ "$?" = 1 ] && return 3 # Daemon stopped
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return 0
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fi
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return 4 # Service status is unknown
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}
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# function:
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# statusproc [-p pidfile] {program}
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# description:
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# A function to check the status of a program
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statusproc ()
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{
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local base pid pid_file=
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# Test syntax.
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if [ "$#" = 0 ] ; then
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echo $"Usage: statusproc [-p pidfile] {program}"
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return 1
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fi
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if [ "$1" = "-p" ]; then
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pid_file=$2
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shift 2
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fi
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base=${1##*/}
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# First try "pidof"
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pid="$(__pids_pidof "$1")"
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if [ -n "$pid" ]; then
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echo $"${base} (pid $pid) is running..."
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return 0
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fi
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# Next try "/var/run/*.pid" files
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__pids_var_run "$1" "$pid_file"
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case "$?" in
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0) echo $"${base} (pid $pid) is running..."
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return 0
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;;
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1) echo $"${base} dead but pid file exists"
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return 1
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;;
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esac
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# See if /var/lock/subsys/${base} exists.
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if [ -f /var/lock/subsys/${base} ]; then
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echo $"${base} dead but subsys locked"
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return 2
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fi
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echo $"${base} is stopped"
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return 3
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}
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loadproc ()
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{
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|
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if [ $# = 0 ]; then
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echo "Usage: loadproc {program}"
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exit 1
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|
|
fi
|
||
|
|
|
||
|
|
local pid
|
||
|
|
pid="$(__pids_pidof "$1")"
|
||
|
|
if [ -z "$pid" ]; then
|
||
|
|
"$@"
|
||
|
|
[ $? -eq 0 ] && echo_success || echo_failure
|
||
|
|
else
|
||
|
|
$MOVE_TO_WCOL
|
||
|
|
echo_passed
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
reloadproc ()
|
||
|
|
{
|
||
|
|
if [ $# = 0 ]; then
|
||
|
|
echo "Usage: reloadproc {program} [signal]"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
local signal
|
||
|
|
if [ -z "$2" ]; then
|
||
|
|
signal=HUP
|
||
|
|
else
|
||
|
|
signal=${2##-}
|
||
|
|
signal=${signal##SIG}
|
||
|
|
fi
|
||
|
|
|
||
|
|
local pid apid failure
|
||
|
|
pid="$(__pids_pidof "$1")"
|
||
|
|
if [ -n "$pid" ]; then
|
||
|
|
failure=0
|
||
|
|
for apid in $pid; do
|
||
|
|
kill -s $signal $apid || failure=1
|
||
|
|
done
|
||
|
|
[ $failure -eq 0 ] && echo_success || echo_failure
|
||
|
|
else
|
||
|
|
$MOVE_TO_WCOL
|
||
|
|
echo_warning not_running
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
echo_success ()
|
||
|
|
{
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||
|
|
echo -n "["
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
|
||
|
|
echo -n $" OK "
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||
|
|
echo -n "]"
|
||
|
|
/bin/echo -ne "\r"
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
echo_failure ()
|
||
|
|
{
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||
|
|
echo -n "["
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
|
||
|
|
echo -n $"FAILED"
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||
|
|
echo -n "]"
|
||
|
|
/bin/echo -ne "\r"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
echo_warning ()
|
||
|
|
{
|
||
|
|
case "$1" in
|
||
|
|
running)
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_TO_WCOL
|
||
|
|
echo $"Already running"
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_CURS_UP
|
||
|
|
;;
|
||
|
|
not_running)
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_TO_WCOL
|
||
|
|
echo $"Stopped"
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_CURS_UP
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||
|
|
echo -n "["
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
|
||
|
|
echo -n $"WARNING"
|
||
|
|
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||
|
|
echo -n "]"
|
||
|
|
/bin/echo -ne "\r"
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
echo_passed ()
|
||
|
|
{
|
||
|
|
# [ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||
|
|
# echo -n "["
|
||
|
|
# [ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
|
||
|
|
# echo -n $"PASSED"
|
||
|
|
# [ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||
|
|
# echo -n "]"
|
||
|
|
# /bin/echo -ne "\r"
|
||
|
|
echo_warning running
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
|
||
|
|
# Log that something succeeded.
|
||
|
|
success ()
|
||
|
|
{
|
||
|
|
if [ -z "${IN_INITLOG:-}" ]; then
|
||
|
|
initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
|
||
|
|
fi
|
||
|
|
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_success
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
# Log that something failed.
|
||
|
|
failure ()
|
||
|
|
{
|
||
|
|
local rc=$?
|
||
|
|
if [ -z "${IN_INITLOG:-}" ]; then
|
||
|
|
initlog $INITLOG_ARGS -n $0 -s "$1" -e 2
|
||
|
|
fi
|
||
|
|
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_failure
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
# Log that something passed, but may have had errors. Useful for fsck
|
||
|
|
passed ()
|
||
|
|
{
|
||
|
|
local rc=$?
|
||
|
|
if [ -z "${IN_INITLOG:-}" ]; then
|
||
|
|
initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
|
||
|
|
fi
|
||
|
|
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_passed
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
# Log a warning.
|
||
|
|
warning ()
|
||
|
|
{
|
||
|
|
local rc=$?
|
||
|
|
if [ -z "${IN_INITLOG:-}" ]; then
|
||
|
|
initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
|
||
|
|
fi
|
||
|
|
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_warning
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
evaluate_retval ()
|
||
|
|
{
|
||
|
|
[ $? -eq 0 ] && echo_success || echo_failure
|
||
|
|
}
|
||
|
|
|
||
|
|
# WARNING: this function is obsolete: do not use it
|
||
|
|
print_status ()
|
||
|
|
{
|
||
|
|
if [ $# = 0 ]; then
|
||
|
|
echo "Usage: $0 {success|failure|warning}"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
case "$1" in
|
||
|
|
success) echo_success ;;
|
||
|
|
failure) echo_failure ;;
|
||
|
|
warning) echo_warning $2 ;;
|
||
|
|
esac
|
||
|
|
}
|
||
|
|
|
||
|
|
# Run some action. Log its output.
|
||
|
|
action ()
|
||
|
|
{
|
||
|
|
local msg rc
|
||
|
|
|
||
|
|
msg=$1
|
||
|
|
echo -n "$msg "
|
||
|
|
shift
|
||
|
|
"$@" && success $"$msg" || failure $"$msg"
|
||
|
|
rc=$?
|
||
|
|
echo
|
||
|
|
return $rc
|
||
|
|
}
|
||
|
|
|
||
|
|
spl_cachedir="/lib/splash/cache"
|
||
|
|
spl_fifo="/dev/.splashfifo"
|
||
|
|
spl_pidfile="/dev/.splashpid"
|
||
|
|
|
||
|
|
splash_comm_send ()
|
||
|
|
{
|
||
|
|
[ -w "$spl_fifo" -a -r "$spl_pidfile" ] || return 1
|
||
|
|
[ "`pidof fbsplashd`" ] || return
|
||
|
|
echo $* > $spl_fifo || return 1
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
splash_comm_progress ()
|
||
|
|
{
|
||
|
|
[ "$1" ] || return 1
|
||
|
|
progress=`expr 65535 \* $1 / 100`
|
||
|
|
|
||
|
|
splash_comm_send progress ${progress}
|
||
|
|
splash_comm_send repaint
|
||
|
|
}
|
||
|
|
|
||
|
|
check_link ()
|
||
|
|
{
|
||
|
|
if [ $# = 0 ]; then
|
||
|
|
echo "Usage: check_link <symlink>"
|
||
|
|
return 1
|
||
|
|
fi
|
||
|
|
if [ ! -f "$1" ]; then
|
||
|
|
echo "$1 is a broken symlink, skipping"
|
||
|
|
return 2
|
||
|
|
fi
|
||
|
|
if [ ! -x "$1" ]; then
|
||
|
|
echo "$1 is not executable, skipping"
|
||
|
|
return 3
|
||
|
|
fi
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
# define aliases for compatibility
|
||
|
|
alias status=statusproc
|
||
|
|
alias gprintf=printf
|