Subversion Repositories configs

# -*-Shell-script-*-

#

# functions This file contains functions to be used by most or all

#       shell scripts in the /etc/init.d directory.

#

TEXTDOMAIN=initscripts

# Make sure umask is sane

umask 022

# Set up a default search path.

PATH="/sbin:/usr/sbin:/bin:/usr/bin"

export PATH

if [ $PPID -ne 1 -a -z "$SYSTEMCTL_SKIP_REDIRECT" ] && \

        [ -d /run/systemd/system ] ; then

    case "$0" in

    /etc/init.d/*|/etc/rc.d/init.d/*)

        _use_systemctl=1

        ;;

    esac

fi

systemctl_redirect () {

    local s

    local prog=${1##*/}

    local command=$2

    local options=""

    case "$command" in

    start)

        s=$"Starting $prog (via systemctl): "

        ;;

    stop)

        s=$"Stopping $prog (via systemctl): "

        ;;

    reload|try-reload)

        s=$"Reloading $prog configuration (via systemctl): "

        ;;

    restart|try-restart|condrestart)

        s=$"Restarting $prog (via systemctl): "

        ;;

    esac

    if [ -n "$SYSTEMCTL_IGNORE_DEPENDENCIES" ] ; then

        options="--ignore-dependencies"

    fi

    if ! systemctl show "$prog.service" > /dev/null 2>&1 || \

            systemctl show -p LoadState "$prog.service" | grep -q 'not-found' ; then

        action $"Reloading systemd: " /bin/systemctl daemon-reload

    fi

    action "$s" /bin/systemctl $options $command "$prog.service"

}

# Get a sane screen width

[ -z "${COLUMNS:-}" ] && COLUMNS=80

# Read in our configuration

if [ -z "${BOOTUP:-}" ]; then

    if [ -f /etc/sysconfig/init ]; then

        . /etc/sysconfig/init

    else

        # verbose ->> very (very!) old bootup look (prior to RHL-6.0?)

        # color ->> default bootup look

        # other ->> default bootup look without ANSI colors or positioning

        BOOTUP=color

        # Column to start "[  OK  ]" label in:

        RES_COL=60

        # terminal sequence to move to that column:

        MOVE_TO_COL="echo -en \\033[${RES_COL}G"

        # Terminal sequence to set color to a 'success' (bright green):

        SETCOLOR_SUCCESS="echo -en \\033[1;32m"

        # Terminal sequence to set color to a 'failure' (bright red):

        SETCOLOR_FAILURE="echo -en \\033[1;31m"

        # Terminal sequence to set color to a 'warning' (bright yellow):

        SETCOLOR_WARNING="echo -en \\033[1;33m"

        # Terminal sequence to reset to the default color:

        SETCOLOR_NORMAL="echo -en \\033[0;39m"

        # Verbosity of logging:

        LOGLEVEL=1

    fi

    # NOTE: /dev/ttyS* is serial console. "not a tty" is such as

    # /dev/null associated when executed under systemd service units.

    if LANG=C tty | grep --quiet -e '\(/dev/ttyS\|not a tty\)'; then

        BOOTUP=serial

        MOVE_TO_COL=

        SETCOLOR_SUCCESS=

        SETCOLOR_FAILURE=

        SETCOLOR_WARNING=

        SETCOLOR_NORMAL=

    fi

fi

# Check if any of $pid (could be plural) are running

checkpid() {

    local i

    for i in $* ; do

        [ -d "/proc/$i" ] && return 0

    done

    return 1

}

__kill_pids_term_kill_checkpids() {

    local base_stime=$1

    shift 1

    local pid=

    local pids=$*

    local remaining=

    local stat=

    local stime=

    for pid in $pids ; do

        [ ! -e  "/proc/$pid" ] && continue

        read -r line < "/proc/$pid/stat" 2> /dev/null

        stat=($line)

        stime=${stat[21]}

        [ -n "$stime" ] && [ "$base_stime" -lt "$stime" ] && continue

        remaining+="$pid "

    done

    echo "$remaining"

    [ -n "$remaining" ] && return 1

    return 0

}

__kill_pids_term_kill() {

    local try=0

    local delay=3;

    local pid=

    local stat=

    local base_stime=

    # We can't initialize stat & base_stime on the same line where 'local'

    # keyword is, otherwise the sourcing of this file will fail for ksh...

    stat=($(< /proc/self/stat))

    base_stime=${stat[21]}

    if [ "$1" = "-d" ]; then

        delay=$2

        shift 2

    fi

    local kill_list=$*

    kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)

    [ -z "$kill_list" ] && return 0

    kill -TERM $kill_list >/dev/null 2>&1

    sleep 0.1

    kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)

    if [ -n "$kill_list" ] ; then

        while [ $try -lt $delay ] ; do

            sleep 1

            kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)

            [ -z "$kill_list" ] && break

            let try+=1

        done

        if [ -n "$kill_list" ] ; then

            kill -KILL $kill_list >/dev/null 2>&1

            sleep 0.1

            kill_list=$(__kill_pids_term_kill_checkpids $base_stime $kill_list)

        fi

    fi

    [ -n "$kill_list" ] && return 1

    return 0

}

# __proc_pids {program} [pidfile]

# Set $pid to pids from /run* for {program}.  $pid should be declared

# local in the caller.

# Returns LSB exit code for the 'status' action.

__pids_var_run() {

    local base=${1##*/}

    local pid_file=${2:-/run/$base.pid}

    local pid_dir=$(/usr/bin/dirname $pid_file > /dev/null)

    local binary=$3

    [ -d "$pid_dir" ] && [ ! -r "$pid_dir" ] && return 4

    pid=

    if [ -f "$pid_file" ] ; then

            local line p

        [ ! -r "$pid_file" ] && return 4 # "user had insufficient privilege"

        while : ; do

            read line

            [ -z "$line" ] && break

            for p in $line ; do

                if [ -z "${p//[0-9]/}" ] && [ -d "/proc/$p" ] ; then

                    if [ -n "$binary" ] ; then

                        local b=$(readlink /proc/$p/exe | sed -e 's/\s*(deleted)$//')

                        [ "$b" != "$binary" ] && continue

                    fi

                    pid="$pid $p"

                fi

            done

        done < "$pid_file"

            if [ -n "$pid" ]; then

                    return 0

            fi

        return 1 # "Program is dead and /run pid file exists"

    fi

    return 3 # "Program is not running"

}

# Output PIDs of matching processes, found using pidof

__pids_pidof() {

    pidof -c -o $$ -o $PPID -o %PPID -x "$1" || \

        pidof -c -o $$ -o $PPID -o %PPID -x "${1##*/}"

}

# A function to start a program.

daemon() {

    # Test syntax.

    local gotbase= force= nicelevel corelimit

    local pid base= user= nice= bg= pid_file=

    local cgroup=

    nicelevel=0

    while [ "$1" != "${1##[-+]}" ]; do

        case $1 in

        '')

            echo $"$0: Usage: daemon [+/-nicelevel] {program}" "[arg1]..."

            return 1

            ;;

        --check)

            base=$2

            gotbase="yes"

            shift 2

            ;;

        --check=?*)

            base=${1#--check=}

            gotbase="yes"

            shift

            ;;

        --user)

            user=$2

            shift 2

            ;;

        --user=?*)

            user=${1#--user=}

            shift

            ;;

        --pidfile)

            pid_file=$2

            shift 2

            ;;

        --pidfile=?*)

            pid_file=${1#--pidfile=}

            shift

            ;;

        --force)

            force="force"

            shift

            ;;

        [-+][0-9]*)

            nice="nice -n $1"

            shift

            ;;

        *)

            echo $"$0: Usage: daemon [+/-nicelevel] {program}" "[arg1]..."

            return 1

            ;;

      esac

    done

    # Save basename.

    [ -z "$gotbase" ] && base=${1##*/}

    # See if it's already running. Look *only* at the pid file.

    __pids_var_run "$base" "$pid_file"

    [ -n "$pid" -a -z "$force" ] && return

    # make sure it doesn't core dump anywhere unless requested

    corelimit="ulimit -S -c ${DAEMON_COREFILE_LIMIT:-0}"

    # if they set NICELEVEL in /etc/sysconfig/foo, honor it

    [ -n "${NICELEVEL:-}" ] && nice="nice -n $NICELEVEL"

    # if they set CGROUP_DAEMON in /etc/sysconfig/foo, honor it

    if [ -n "${CGROUP_DAEMON}" ]; then

        if [ ! -x /bin/cgexec ]; then

            echo -n "Cgroups not installed"; warning

            echo

        else

            cgroup="/bin/cgexec";

            for i in $CGROUP_DAEMON; do

                cgroup="$cgroup -g $i";

            done

        fi

    fi

    # Echo daemon

    [ "${BOOTUP:-}" = "verbose" -a -z "${LSB:-}" ] && echo -n " $base"

    # And start it up.

    if [ -z "$user" ]; then

       $cgroup $nice /bin/bash -c "$corelimit >/dev/null 2>&1 ; $*"

    else

       $cgroup $nice runuser -s /bin/bash $user -c "$corelimit >/dev/null 2>&1 ; $*"

    fi

    [ "$?" -eq 0 ] && success $"$base startup" || failure $"$base startup"

}

# A function to stop a program.

killproc() {

    local RC killlevel= base pid pid_file= delay try binary=

    RC=0; delay=3; try=0

    # Test syntax.

    if [ "$#" -eq 0 ]; then

        echo $"Usage: killproc [-p pidfile] [ -d delay] {program} [-signal]"

        return 1

    fi

    if [ "$1" = "-p" ]; then

        pid_file=$2

        shift 2

    fi

    if [ "$1" = "-b" ]; then

        if [ -z $pid_file ]; then

            echo $"-b option can be used only with -p"

            echo $"Usage: killproc -p pidfile -b binary program"

            return 1

        fi

        binary=$2

        shift 2

    fi

    if [ "$1" = "-d" ]; then

        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)}')

        if [ "$?" -eq 1 ]; then

            echo $"Usage: killproc [-p pidfile] [ -d delay] {program} [-signal]"

            return 1

        fi

        shift 2

    fi

    # check for second arg to be kill level

    [ -n "${2:-}" ] && killlevel=$2

    # Save basename.

    base=${1##*/}

    # Find pid.

    __pids_var_run "$1" "$pid_file" "$binary"

    RC=$?

    if [ -z "$pid" ]; then

        if [ -z "$pid_file" ]; then

            pid="$(__pids_pidof "$1")"

        else

            [ "$RC" = "4" ] && { failure $"$base shutdown" ; return $RC ;}

        fi

    fi

    # Kill it.

    if [ -n "$pid" ] ; then

        [ "$BOOTUP" = "verbose" -a -z "${LSB:-}" ] && echo -n "$base "

        if [ -z "$killlevel" ] ; then

            __kill_pids_term_kill -d $delay $pid

            RC=$?

            [ "$RC" -eq 0 ] && success $"$base shutdown" || failure $"$base shutdown"

        # use specified level only

        else

            if checkpid $pid; then

                kill $killlevel $pid >/dev/null 2>&1

                RC=$?

                [ "$RC" -eq 0 ] && success $"$base $killlevel" || failure $"$base $killlevel"

            elif [ -n "${LSB:-}" ]; then

                RC=7 # Program is not running

            fi

        fi

    else

        if [ -n "${LSB:-}" -a -n "$killlevel" ]; then

            RC=7 # Program is not running

        else

            failure $"$base shutdown"

            RC=0

        fi

    fi

    # Remove pid file if any.

    if [ -z "$killlevel" ]; then

        rm -f "${pid_file:-/run/$base.pid}"

    fi

    return $RC

}

# A function to find the pid of a program. Looks *only* at the pidfile

pidfileofproc() {

    local pid

    # Test syntax.

    if [ "$#" = 0 ] ; then

        echo $"Usage: pidfileofproc {program}"

        return 1

    fi

    __pids_var_run "$1"

    [ -n "$pid" ] && echo $pid

    return 0

}

# A function to find the pid of a program.

pidofproc() {

    local RC pid pid_file=

    # Test syntax.

    if [ "$#" = 0 ]; then

        echo $"Usage: pidofproc [-p pidfile] {program}"

        return 1

    fi

    if [ "$1" = "-p" ]; then

        pid_file=$2

        shift 2

    fi

    fail_code=3 # "Program is not running"

    # First try "/run/*.pid" files

    __pids_var_run "$1" "$pid_file"

    RC=$?

    if [ -n "$pid" ]; then

        echo $pid

        return 0

    fi

    [ -n "$pid_file" ] && return $RC

    __pids_pidof "$1" || return $RC

}

status() {

    local base pid lock_file= pid_file= binary=

    # Test syntax.

    if [ "$#" = 0 ] ; then

        echo $"Usage: status [-p pidfile] {program}"

        return 1

    fi

    if [ "$1" = "-p" ]; then

        pid_file=$2

        shift 2

    fi

    if [ "$1" = "-l" ]; then

        lock_file=$2

        shift 2

    fi

    if [ "$1" = "-b" ]; then

        if [ -z $pid_file ]; then

            echo $"-b option can be used only with -p"

            echo $"Usage: status -p pidfile -b binary program"

            return 1

        fi

        binary=$2

        shift 2

    fi

    base=${1##*/}

    if [ "$_use_systemctl" = "1" ]; then

        systemctl status ${0##*/}.service

        ret=$?

        # 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

            ret=3

        fi

        return $ret

    fi

    # First try "pidof"

    __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

    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

        ;;

    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