28523d09e1
git-svn-id: https://svn.disconnected-by-peer.at/svn/linamh/trunk/linamh@1958 6952d904-891a-0410-993b-d76249ca496b
455 lines
9.8 KiB
Bash
455 lines
9.8 KiB
Bash
# -*-Shell-script-*-
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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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# Author: Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
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# Hacked by: Greg Galloway and Marc Ewing
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#
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# i18n originally by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>,
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# Wanderlei Antonio Cavassin
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TEXTDOMAIN=initscripts
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TEXTDOMAINDIR=/etc/locale
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# Make sure umask is sane
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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:/usr/X11R6/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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if [ -f /etc/sysconfig/i18n -a -z "${NOLOCALE:-}" ] ; then
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. /etc/sysconfig/i18n
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if [ "$CONSOLETYPE" != "pty" ]; then
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case "${LANG:-}" in
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ja_JP.eucJP|ko_KR.eucKR|zh_CN.GB2312|zh_TW.Big5|zh_CN.GB18030)
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unset LANG;;
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*)
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export LANG
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esac
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else
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export LANG
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fi
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fi
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# Read in our configuration
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if [ -z "${BOOTUP:-}" ]; then
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if [ -f /etc/sysconfig/init ]; then
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. /etc/sysconfig/init
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else
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# This all seem confusing? Look in /etc/sysconfig/init,
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# or in /usr/doc/initscripts-*/sysconfig.txt
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BOOTUP=color
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RES_COL=60
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MOVE_TO_COL="echo -en \\033[${RES_COL}G"
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SETCOLOR_SUCCESS="echo -en \\033[1;32m"
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SETCOLOR_FAILURE="echo -en \\033[1;31m"
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SETCOLOR_WARNING="echo -en \\033[1;33m"
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SETCOLOR_NORMAL="echo -en \\033[0;39m"
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LOGLEVEL=1
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fi
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if [ "$CONSOLETYPE" = "serial" ]; then
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BOOTUP=serial
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MOVE_TO_COL=
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SETCOLOR_SUCCESS=
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SETCOLOR_FAILURE=
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SETCOLOR_WARNING=
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SETCOLOR_NORMAL=
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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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# Check if $pid (could be plural) are running
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checkpid() {
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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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# A function to start a program.
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daemon() {
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# Test syntax.
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local gotbase= force=
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local base= user= nice= bg= pid=
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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 $"$0: Usage: daemon [+/-nicelevel] {program}"
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return 1;;
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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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[-+][0-9]*)
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nice="nice -n $1"
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shift
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;;
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*) echo $"$0: Usage: daemon [+/-nicelevel] {program}"
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return 1;;
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esac
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done
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# Save basename.
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[ -z "$gotbase" ] && base=${1##*/}
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# See if it's already running. Look *only* at the pid file.
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if [ -f /var/run/${base}.pid ]; then
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local line p
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read line < /var/run/${base}.pid
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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 "${force:-}" ] && return
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# make sure it doesn't core dump anywhere; while this could mask
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# problems with the daemon, it also closes some security problems
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ulimit -S -c 0 >/dev/null 2>&1
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# Echo daemon
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[ "${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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# A function to stop a program.
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killproc() {
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RC=0
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# Test syntax.
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if [ "$#" -eq 0 ]; then
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echo $"Usage: killproc {program} [signal]"
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return 1
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fi
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notset=0
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# check for second arg to be kill level
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if [ -n "$2" ]; then
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killlevel=$2
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else
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notset=1
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killlevel="-9"
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fi
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# Save basename.
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base=${1##*/}
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# Find pid.
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pid=
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if [ -f /var/run/${base}.pid ]; then
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local line p
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read line < /var/run/${base}.pid
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for p in $line ; do
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[ -z "${p//[0-9]/}" -a -d "/proc/$p" ] && pid="$pid $p"
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done
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fi
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if [ -z "$pid" ]; then
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pid=`pidof -o $$ -o $PPID -o %PPID -x $1 || \
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pidof -o $$ -o $PPID -o %PPID -x $base`
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fi
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# Kill it.
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if [ -n "${pid:-}" ] ; then
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[ "$BOOTUP" = "verbose" -a -z "$LSB" ] && echo -n "$base "
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if [ "$notset" -eq "1" ] ; then
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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 -TERM $pid
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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 -KILL $pid
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usleep 100000
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fi
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fi
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checkpid $pid
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RC=$?
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[ "$RC" -eq 0 ] && failure $"$base shutdown" || success $"$base shutdown"
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RC=$((! $RC))
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# use specified level only
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else
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if checkpid $pid; then
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kill $killlevel $pid
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RC=$?
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[ "$RC" -eq 0 ] && success $"$base $killlevel" || failure $"$base $killlevel"
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fi
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fi
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else
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failure $"$base shutdown"
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RC=1
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fi
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# Remove pid file if any.
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if [ "$notset" = "1" ]; then
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rm -f /var/run/$base.pid
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fi
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return $RC
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}
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# A function to find the pid of a program. Looks *only* at the pidfile
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pidfileofproc() {
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local base=${1##*/}
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# Test syntax.
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if [ "$#" = 0 ] ; then
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echo $"Usage: pidfileofproc {program}"
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return 1
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fi
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# First try "/var/run/*.pid" files
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if [ -f /var/run/$base.pid ] ; then
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local line p pid=
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read line < /var/run/$base.pid
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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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echo $pid
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return 0
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fi
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fi
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}
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# A function to find the pid of a program.
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pidofproc() {
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base=${1##*/}
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# Test syntax.
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if [ "$#" = 0 ]; then
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echo $"Usage: pidofproc {program}"
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return 1
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fi
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# First try "/var/run/*.pid" files
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if [ -f /var/run/$base.pid ]; then
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local line p pid=
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read line < /var/run/$base.pid
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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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echo $pid
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return 0
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fi
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fi
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pidof -o $$ -o $PPID -o %PPID -x $1 || \
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pidof -o $$ -o $PPID -o %PPID -x $base
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}
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status() {
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local base=${1##*/}
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local pid
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# Test syntax.
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if [ "$#" = 0 ] ; then
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echo $"Usage: status {program}"
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return 1
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fi
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# First try "pidof"
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pid=`pidof -o $$ -o $PPID -o %PPID -x $1 || \
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pidof -o $$ -o $PPID -o %PPID -x ${base}`
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if [ -n "$pid" ]; then
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echo $"${base} (pid $pid) is running..."
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return 0
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fi
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# Next try "/var/run/*.pid" files
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if [ -f /var/run/${base}.pid ] ; then
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read pid < /var/run/${base}.pid
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if [ -n "$pid" ]; then
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echo $"${base} dead but pid file exists"
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return 1
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fi
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fi
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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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echo_success() {
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[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
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echo -n "[ "
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[ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
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echo -n $"OK"
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[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
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echo -n " ]"
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echo -ne "\r"
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return 0
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}
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echo_failure() {
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[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
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echo -n "["
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[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
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echo -n $"FAILED"
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[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
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echo -n "]"
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echo -ne "\r"
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return 1
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}
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echo_passed() {
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[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
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echo -n "["
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[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
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echo -n $"PASSED"
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[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
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echo -n "]"
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echo -ne "\r"
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return 1
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}
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echo_warning() {
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[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
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echo -n "["
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[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
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echo -n $"WARNING"
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[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
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echo -n "]"
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echo -ne "\r"
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return 1
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}
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# Log that something succeeded
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success() {
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if [ -z "${IN_INITLOG:-}" ]; then
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initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
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else
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# silly hack to avoid EPIPE killing rc.sysinit
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trap "" SIGPIPE
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echo "$INITLOG_ARGS -n $0 -s \"$1\" -e 1" >&21
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trap - SIGPIPE
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fi
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[ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_success
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return 0
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}
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# Log that something failed
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failure() {
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rc=$?
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if [ -z "${IN_INITLOG:-}" ]; then
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initlog $INITLOG_ARGS -n $0 -s "$1" -e 2
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else
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trap "" SIGPIPE
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echo "$INITLOG_ARGS -n $0 -s \"$1\" -e 2" >&21
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trap - SIGPIPE
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fi
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[ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_failure
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return $rc
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}
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# Log that something passed, but may have had errors. Useful for fsck
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passed() {
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rc=$?
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if [ -z "${IN_INITLOG:-}" ]; then
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initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
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else
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trap "" SIGPIPE
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echo "$INITLOG_ARGS -n $0 -s \"$1\" -e 1" >&21
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trap - SIGPIPE
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fi
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[ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_passed
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return $rc
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}
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# Log a warning
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warning() {
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rc=$?
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if [ -z "${IN_INITLOG:-}" ]; then
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initlog $INITLOG_ARGS -n $0 -s "$1" -e 1
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else
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trap "" SIGPIPE
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echo "$INITLOG_ARGS -n $0 -s \"$1\" -e 1" >&21
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trap - SIGPIPE
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fi
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[ "$BOOTUP" != "verbose" -a -z "$LSB" ] && echo_warning
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return $rc
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}
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# Run some action. Log its output.
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action() {
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STRING=$1
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echo -n "$STRING "
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shift
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initlog $INITLOG_ARGS -c "$*" && success $"$STRING" || failure $"$STRING"
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rc=$?
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echo
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return $rc
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}
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# returns OK if $1 contains $2
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strstr() {
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#case "$1" in
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# *${2}*) return 0 ;;
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#esac
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#return 1
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[ "$1" = "$2" ] && return 0
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slice=${1#*$2*}
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[ "$slice" = "$1" ] && return 1
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return 0
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}
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# Confirm whether we really want to run this service
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confirm() {
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local YES=$"yY"
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local NO=$"nN"
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local CONT=$"cC"
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while : ; do
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echo -n $"Start service $1 (Y)es/(N)o/(C)ontinue? [Y] "
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read answer
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if strstr "$YES" "$answer" || [ "$answer" = "" ] ; then
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return 0
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elif strstr "$CONT" "$answer" ; then
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return 2
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elif strstr "$NO" "$answer" ; then
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return 1
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fi
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done
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}
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