Initial commit.
This commit is contained in:
709
rc.d/init.d/functions
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709
rc.d/init.d/functions
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@@ -0,0 +1,709 @@
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# -*-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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TEXTDOMAIN=initscripts
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# Make sure umask is sane
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umask 027
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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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if [ $PPID -ne 1 -a -z "$SYSTEMCTL_SKIP_REDIRECT" ] && \
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[ -d /run/systemd/system ] ; then
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case "$0" in
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/etc/init.d/*|/etc/rc.d/init.d/*)
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_use_systemctl=1
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;;
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esac
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fi
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systemctl_redirect () {
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local s
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local prog=${1##*/}
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local command=$2
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local options=""
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case "$command" in
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start)
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s=$"Starting $prog (via systemctl): "
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;;
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stop)
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s=$"Stopping $prog (via systemctl): "
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;;
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reload|try-reload)
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s=$"Reloading $prog configuration (via systemctl): "
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;;
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restart|try-restart|condrestart)
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s=$"Restarting $prog (via systemctl): "
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;;
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esac
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if [ -n "$SYSTEMCTL_IGNORE_DEPENDENCIES" ] ; then
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options="--ignore-dependencies"
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fi
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if ! systemctl show "$prog.service" > /dev/null 2>&1 || \
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systemctl show -p LoadState "$prog.service" | grep -q 'not-found' ; then
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action $"Reloading systemd: " /bin/systemctl daemon-reload
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fi
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action "$s" /bin/systemctl $options $command "$prog.service"
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}
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# Get a sane screen width
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[ -z "${COLUMNS:-}" ] && COLUMNS=80
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# Read in our configuration
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if [ -z "${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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# verbose ->> very (very!) old bootup look (prior to RHL-6.0?)
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# color ->> default bootup look
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# other ->> default bootup look without ANSI colors or positioning
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BOOTUP=color
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# Column to start "[ OK ]" label in:
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RES_COL=60
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# terminal sequence to move to that column:
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MOVE_TO_COL="echo -en \\033[${RES_COL}G"
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# Terminal sequence to set color to a 'success' (bright green):
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SETCOLOR_SUCCESS="echo -en \\033[1;32m"
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# Terminal sequence to set color to a 'failure' (bright red):
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SETCOLOR_FAILURE="echo -en \\033[1;31m"
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# Terminal sequence to set color to a 'warning' (bright yellow):
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SETCOLOR_WARNING="echo -en \\033[1;33m"
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# Terminal sequence to reset to the default color:
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SETCOLOR_NORMAL="echo -en \\033[0;39m"
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# Verbosity of logging:
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LOGLEVEL=1
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fi
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# NOTE: /dev/ttyS* is serial console. "not a tty" is such as
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# /dev/null associated when executed under systemd service units.
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if LANG=C tty | grep --quiet -e '\(/dev/ttyS\|not a tty\)'; 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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# Check if any of $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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__kill_pids_term_kill_checkpids() {
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local base_stime=$1
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shift 1
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local pid=
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local pids=$*
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local remaining=
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local stat=
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local stime=
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for pid in $pids ; do
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[ ! -e "/proc/$pid" ] && continue
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read -r line < "/proc/$pid/stat" 2> /dev/null
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stat=($line)
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stime=${stat[21]}
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[ -n "$stime" ] && [ "$base_stime" -lt "$stime" ] && continue
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remaining+="$pid "
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done
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echo "$remaining"
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[ -n "$remaining" ] && return 1
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return 0
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}
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__kill_pids_term_kill() {
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local try=0
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local delay=3;
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local pid=
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local stat=
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local base_stime=
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# We can't initialize stat & base_stime on the same line where 'local'
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# keyword is, otherwise the sourcing of this file will fail for ksh...
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stat=($(< /proc/self/stat))
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base_stime=${stat[21]}
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if [ "$1" = "-d" ]; then
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delay=$2
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shift 2
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fi
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local kill_list=$*
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kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)
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[ -z "$kill_list" ] && return 0
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kill -TERM $kill_list >/dev/null 2>&1
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sleep 0.1
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kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)
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if [ -n "$kill_list" ] ; then
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while [ $try -lt $delay ] ; do
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sleep 1
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kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)
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[ -z "$kill_list" ] && break
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let try+=1
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done
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if [ -n "$kill_list" ] ; then
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kill -KILL $kill_list >/dev/null 2>&1
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sleep 0.1
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kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)
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fi
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fi
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[ -n "$kill_list" ] && return 1
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return 0
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}
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# __proc_pids {program} [pidfile]
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# Set $pid to pids from /run* for {program}. $pid should be declared
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# local in the caller.
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# Returns LSB exit code for the 'status' action.
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__pids_var_run() {
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local base=${1##*/}
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local pid_file=${2:-/run/$base.pid}
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local pid_dir=$(/usr/bin/dirname $pid_file > /dev/null)
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local binary=$3
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[ -d "$pid_dir" ] && [ ! -r "$pid_dir" ] && return 4
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pid=
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if [ -f "$pid_file" ] ; then
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local line p
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[ ! -r "$pid_file" ] && return 4 # "user had insufficient privilege"
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while : ; do
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read line
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[ -z "$line" ] && break
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for p in $line ; do
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if [ -z "${p//[0-9]/}" ] && [ -d "/proc/$p" ] ; then
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if [ -n "$binary" ] ; then
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local b=$(readlink /proc/$p/exe | sed -e 's/\s*(deleted)$//')
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[ "$b" != "$binary" ] && continue
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fi
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pid="$pid $p"
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fi
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done
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done < "$pid_file"
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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 /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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# Output PIDs of matching processes, found using pidof
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__pids_pidof() {
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pidof -c -o $$ -o $PPID -o %PPID -x "$1" || \
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pidof -c -o $$ -o $PPID -o %PPID -x "${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= nicelevel corelimit
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local pid base= user= nice= bg= pid_file=
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local cgroup=
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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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'')
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echo $"$0: Usage: daemon [+/-nicelevel] {program}" "[arg1]..."
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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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--pidfile)
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pid_file=$2
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shift 2
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;;
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--pidfile=?*)
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pid_file=${1#--pidfile=}
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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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*)
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echo $"$0: Usage: daemon [+/-nicelevel] {program}" "[arg1]..."
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return 1
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;;
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esac
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done
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# Save basename.
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[ -z "$gotbase" ] && base=${1##*/}
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# See if it's already running. Look *only* at the pid file.
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__pids_var_run "$base" "$pid_file"
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[ -n "$pid" -a -z "$force" ] && return
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# make sure it doesn't core dump anywhere unless requested
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corelimit="ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0}"
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# if they set NICELEVEL in /etc/sysconfig/foo, honor it
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[ -n "${NICELEVEL:-}" ] && nice="nice -n $NICELEVEL"
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# if they set CGROUP_DAEMON in /etc/sysconfig/foo, honor it
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if [ -n "${CGROUP_DAEMON}" ]; then
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if [ ! -x /bin/cgexec ]; then
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echo -n "Cgroups not installed"; warning
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echo
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else
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cgroup="/bin/cgexec";
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for i in $CGROUP_DAEMON; do
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cgroup="$cgroup -g $i";
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done
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fi
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fi
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# Echo daemon
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[ "${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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$cgroup $nice /bin/bash -c "$corelimit >/dev/null 2>&1 ; $*"
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else
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$cgroup $nice runuser -s /bin/bash $user -c "$corelimit >/dev/null 2>&1 ; $*"
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fi
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[ "$?" -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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local RC killlevel= base pid pid_file= delay try binary=
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RC=0; delay=3; try=0
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# Test syntax.
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if [ "$#" -eq 0 ]; then
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echo $"Usage: killproc [-p pidfile] [ -d delay] {program} [-signal]"
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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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if [ "$1" = "-b" ]; then
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if [ -z $pid_file ]; then
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echo $"-b option can be used only with -p"
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echo $"Usage: killproc -p pidfile -b binary program"
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return 1
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fi
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binary=$2
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shift 2
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fi
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if [ "$1" = "-d" ]; then
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delay=$(echo $2 | awk -v RS=' ' -v IGNORECASE=1 '{if($1!~/^[0-9.]+[smhd]?$/) exit 1;d=$1~/s$|^[0-9.]*$/?1:$1~/m$/?60:$1~/h$/?60*60:$1~/d$/?24*60*60:-1;if(d==-1) exit 1;delay+=d*$1} END {printf("%d",delay+0.5)}')
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if [ "$?" -eq 1 ]; then
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echo $"Usage: killproc [-p pidfile] [ -d delay] {program} [-signal]"
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return 1
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fi
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shift 2
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fi
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# check for second arg to be kill level
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[ -n "${2:-}" ] && killlevel=$2
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# Save basename.
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base=${1##*/}
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# Find pid.
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__pids_var_run "$1" "$pid_file" "$binary"
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RC=$?
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if [ -z "$pid" ]; then
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if [ -z "$pid_file" ]; then
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pid="$(__pids_pidof "$1")"
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else
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[ "$RC" = "4" ] && { failure $"$base shutdown" ; return $RC ;}
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fi
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fi
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# Kill it.
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if [ -n "$pid" ] ; then
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[ "$BOOTUP" = "verbose" -a -z "${LSB:-}" ] && echo -n "$base "
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if [ -z "$killlevel" ] ; then
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__kill_pids_term_kill -d $delay $pid
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RC=$?
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[ "$RC" -eq 0 ] && success $"$base shutdown" || failure $"$base shutdown"
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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 $pid >/dev/null 2>&1
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RC=$?
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[ "$RC" -eq 0 ] && success $"$base $killlevel" || failure $"$base $killlevel"
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elif [ -n "${LSB:-}" ]; then
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RC=7 # Program is not running
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fi
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fi
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else
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if [ -n "${LSB:-}" -a -n "$killlevel" ]; then
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RC=7 # Program is not running
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else
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failure $"$base shutdown"
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RC=0
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fi
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fi
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# Remove pid file if any.
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if [ -z "$killlevel" ]; then
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rm -f "${pid_file:-/run/$base.pid}"
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fi
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return $RC
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}
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# A function to find the pid of a program. Looks *only* at the pidfile
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pidfileofproc() {
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local pid
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# Test syntax.
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if [ "$#" = 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 $pid
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return 0
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}
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# A function to find the pid of a program.
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pidofproc() {
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local RC pid pid_file=
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# Test syntax.
|
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if [ "$#" = 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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||||
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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fail_code=3 # "Program is not running"
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# First try "/run/*.pid" files
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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 $pid
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return 0
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||||
fi
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||||
|
||||
[ -n "$pid_file" ] && return $RC
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__pids_pidof "$1" || return $RC
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||||
}
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||||
|
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status() {
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local base pid lock_file= pid_file= binary=
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|
||||
# Test syntax.
|
||||
if [ "$#" = 0 ] ; then
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echo $"Usage: status [-p pidfile] {program}"
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return 1
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||||
fi
|
||||
if [ "$1" = "-p" ]; then
|
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pid_file=$2
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shift 2
|
||||
fi
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||||
if [ "$1" = "-l" ]; then
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lock_file=$2
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shift 2
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||||
fi
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||||
if [ "$1" = "-b" ]; then
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if [ -z $pid_file ]; then
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echo $"-b option can be used only with -p"
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||||
echo $"Usage: status -p pidfile -b binary program"
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return 1
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||||
fi
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||||
binary=$2
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||||
shift 2
|
||||
fi
|
||||
base=${1##*/}
|
||||
|
||||
if [ "$_use_systemctl" = "1" ]; then
|
||||
systemctl status ${0##*/}.service
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ret=$?
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||||
# LSB daemons that dies abnormally in systemd looks alive in systemd's eyes due to RemainAfterExit=yes
|
||||
# lets adjust the reality a little bit
|
||||
if systemctl show -p ActiveState ${0##*/}.service | grep -q '=active$' && \
|
||||
systemctl show -p SubState ${0##*/}.service | grep -q '=exited$' ; then
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||||
ret=3
|
||||
fi
|
||||
return $ret
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||||
fi
|
||||
|
||||
# First try "pidof"
|
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__pids_var_run "$1" "$pid_file" "$binary"
|
||||
RC=$?
|
||||
if [ -z "$pid_file" -a -z "$pid" ]; then
|
||||
pid="$(__pids_pidof "$1")"
|
||||
fi
|
||||
if [ -n "$pid" ]; then
|
||||
echo $"${base} (pid $pid) is running..."
|
||||
return 0
|
||||
fi
|
||||
|
||||
case "$RC" in
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||||
0)
|
||||
echo $"${base} (pid $pid) is running..."
|
||||
return 0
|
||||
;;
|
||||
1)
|
||||
echo $"${base} dead but pid file exists"
|
||||
return 1
|
||||
;;
|
||||
4)
|
||||
echo $"${base} status unknown due to insufficient privileges."
|
||||
return 4
|
||||
;;
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||||
esac
|
||||
if [ -z "${lock_file}" ]; then
|
||||
lock_file=${base}
|
||||
fi
|
||||
# See if /var/lock/subsys/${lock_file} exists
|
||||
if [ -f /var/lock/subsys/${lock_file} ]; then
|
||||
echo $"${base} dead but subsys locked"
|
||||
return 2
|
||||
fi
|
||||
echo $"${base} is stopped"
|
||||
return 3
|
||||
}
|
||||
|
||||
echo_success() {
|
||||
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||||
echo -n "["
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_SUCCESS
|
||||
echo -n $" OK "
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||||
echo -n "]"
|
||||
echo -ne "\r"
|
||||
return 0
|
||||
}
|
||||
|
||||
echo_failure() {
|
||||
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||||
echo -n "["
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
|
||||
echo -n $"FAILED"
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||||
echo -n "]"
|
||||
echo -ne "\r"
|
||||
return 1
|
||||
}
|
||||
|
||||
echo_passed() {
|
||||
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||||
echo -n "["
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
|
||||
echo -n $"PASSED"
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||||
echo -n "]"
|
||||
echo -ne "\r"
|
||||
return 1
|
||||
}
|
||||
|
||||
echo_warning() {
|
||||
[ "$BOOTUP" = "color" ] && $MOVE_TO_COL
|
||||
echo -n "["
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
|
||||
echo -n $"WARNING"
|
||||
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
|
||||
echo -n "]"
|
||||
echo -ne "\r"
|
||||
return 1
|
||||
}
|
||||
|
||||
# Inform the graphical boot of our current state
|
||||
update_boot_stage() {
|
||||
if [ -x /bin/plymouth ]; then
|
||||
/bin/plymouth --update="$1"
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
# Log that something succeeded
|
||||
success() {
|
||||
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_success
|
||||
return 0
|
||||
}
|
||||
|
||||
# Log that something failed
|
||||
failure() {
|
||||
local rc=$?
|
||||
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_failure
|
||||
[ -x /bin/plymouth ] && /bin/plymouth --details
|
||||
return $rc
|
||||
}
|
||||
|
||||
# Log that something passed, but may have had errors. Useful for fsck
|
||||
passed() {
|
||||
local rc=$?
|
||||
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_passed
|
||||
return $rc
|
||||
}
|
||||
|
||||
# Log a warning
|
||||
warning() {
|
||||
local rc=$?
|
||||
[ "$BOOTUP" != "verbose" -a -z "${LSB:-}" ] && echo_warning
|
||||
return $rc
|
||||
}
|
||||
|
||||
# Run some action. Log its output.
|
||||
action() {
|
||||
local STRING rc
|
||||
|
||||
STRING=$1
|
||||
echo -n "$STRING "
|
||||
shift
|
||||
"$@" && success $"$STRING" || failure $"$STRING"
|
||||
rc=$?
|
||||
echo
|
||||
return $rc
|
||||
}
|
||||
|
||||
# returns OK if $1 contains $2
|
||||
strstr() {
|
||||
[ "${1#*$2*}" = "$1" ] && return 1
|
||||
return 0
|
||||
}
|
||||
|
||||
# Check whether file $1 is a backup or rpm-generated file and should be ignored
|
||||
is_ignored_file() {
|
||||
case "$1" in
|
||||
*~ | *.bak | *.old | *.orig | *.rpmnew | *.rpmorig | *.rpmsave)
|
||||
return 0
|
||||
;;
|
||||
esac
|
||||
return 1
|
||||
}
|
||||
|
||||
# Convert the value ${1} of time unit ${2}-seconds into seconds:
|
||||
convert2sec() {
|
||||
local retval=""
|
||||
|
||||
case "${2}" in
|
||||
deci) retval=$(awk "BEGIN {printf \"%.1f\", ${1} / 10}") ;;
|
||||
centi) retval=$(awk "BEGIN {printf \"%.2f\", ${1} / 100}") ;;
|
||||
mili) retval=$(awk "BEGIN {printf \"%.3f\", ${1} / 1000}") ;;
|
||||
micro) retval=$(awk "BEGIN {printf \"%.6f\", ${1} / 1000000}") ;;
|
||||
nano) retval=$(awk "BEGIN {printf \"%.9f\", ${1} / 1000000000}") ;;
|
||||
piko) retval=$(awk "BEGIN {printf \"%.12f\", ${1} / 1000000000000}") ;;
|
||||
esac
|
||||
|
||||
echo "${retval}"
|
||||
}
|
||||
|
||||
# Evaluate shvar-style booleans
|
||||
is_true() {
|
||||
case "$1" in
|
||||
[tT] | [yY] | [yY][eE][sS] | [oO][nN] | [tT][rR][uU][eE] | 1)
|
||||
return 0
|
||||
;;
|
||||
esac
|
||||
return 1
|
||||
}
|
||||
|
||||
# Evaluate shvar-style booleans
|
||||
is_false() {
|
||||
case "$1" in
|
||||
[fF] | [nN] | [nN][oO] | [oO][fF][fF] | [fF][aA][lL][sS][eE] | 0)
|
||||
return 0
|
||||
;;
|
||||
esac
|
||||
return 1
|
||||
}
|
||||
|
||||
# Apply sysctl settings, including files in /etc/sysctl.d
|
||||
apply_sysctl() {
|
||||
if [ -x /lib/systemd/systemd-sysctl ]; then
|
||||
/lib/systemd/systemd-sysctl
|
||||
else
|
||||
for file in /usr/lib/sysctl.d/*.conf ; do
|
||||
is_ignored_file "$file" && continue
|
||||
[ -f /run/sysctl.d/${file##*/} ] && continue
|
||||
[ -f /etc/sysctl.d/${file##*/} ] && continue
|
||||
test -f "$file" && sysctl -e -p "$file" >/dev/null 2>&1
|
||||
done
|
||||
for file in /run/sysctl.d/*.conf ; do
|
||||
is_ignored_file "$file" && continue
|
||||
[ -f /etc/sysctl.d/${file##*/} ] && continue
|
||||
test -f "$file" && sysctl -e -p "$file" >/dev/null 2>&1
|
||||
done
|
||||
for file in /etc/sysctl.d/*.conf ; do
|
||||
is_ignored_file "$file" && continue
|
||||
test -f "$file" && sysctl -e -p "$file" >/dev/null 2>&1
|
||||
done
|
||||
sysctl -e -p /etc/sysctl.conf >/dev/null 2>&1
|
||||
fi
|
||||
}
|
||||
|
||||
# A sed expression to filter out the files that is_ignored_file recognizes
|
||||
__sed_discard_ignored_files='/\(~\|\.bak\|\.old\|\.orig\|\.rpmnew\|\.rpmorig\|\.rpmsave\)$/d'
|
||||
|
||||
if [ "$_use_systemctl" = "1" ]; then
|
||||
if [ "x$1" = xstart -o \
|
||||
"x$1" = xstop -o \
|
||||
"x$1" = xrestart -o \
|
||||
"x$1" = xreload -o \
|
||||
"x$1" = xtry-restart -o \
|
||||
"x$1" = xforce-reload -o \
|
||||
"x$1" = xcondrestart ] ; then
|
||||
|
||||
systemctl_redirect $0 $1
|
||||
exit $?
|
||||
fi
|
||||
fi
|
||||
|
||||
strstr "$(cat /proc/cmdline)" "rc.debug" && set -x
|
||||
return 0
|
||||
|
||||
Reference in New Issue
Block a user