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| #! /bin/sh
### BEGIN INIT INFO
# Provides: saslauthd
# Required-Start: $local_fs $remote_fs
# Required-Stop: $local_fs $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 1
# Short-Description: saslauthd startup script
# Description: This script starts the saslauthd daemon. It is
# configured using the file /etc/default/saslauthd.
### END INIT INFO
# Author: Fabian Fagerholm <fabbe@debian.org>
# Do NOT "set -e"
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
# Global variables
DAEMON=/usr/sbin/saslauthd
DEFAULT_FILES=`find /etc/default -regex '/etc/default/saslauthd[_a-zA-Z0-9\-]*$' -print | sort`
# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
# Function that starts all saslauthd instances
# Parameters: none
# Return value: none
do_startall()
{
for instance in $DEFAULT_FILES
do
start_instance $instance
done
}
# Function that stops all saslauthd instances
# Parameters: none
# Return value: none
do_stopall()
{
for instance in $DEFAULT_FILES
do
stop_instance $instance
done
}
# Function that sends a SIGHUP to all saslauthd instances
# Parameters: none
# Return value: none
do_reloadall()
{
for instance in $DEFAULT_FILES
do
reload_instance $instance
done
}
# Function that starts a single saslauthd instance
# Parameters:
# $1 = path of default file for this instance
# Return value:
# 0 on success (does not mean the instance started)
# 1 on failure
start_instance()
{
# Load defaults file for this instance.
. $1
# If the daemon is not enabled, give the user a warning and stop.
if [ "$START" != "yes" ]; then
log_warning_msg "To enable $NAME, edit $1 and set START=yes"
return 0
fi
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
log_daemon_msg "Starting $DESC" "$NAME"
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME, not starting"
return 1
fi
PIDFILE=$RUN_DIR/saslauthd.pid
# If no mechanisms are defined, fail.
if [ -z "$MECHANISMS" ]; then
log_failure_msg "No mechanisms defined in $1, not starting $NAME"
return 1
fi
# If there are mechanism options defined, prepare them for use with
# the -O flag.
if [ -n "$MECH_OPTIONS" ]; then
MECH_OPTIONS="-O $MECH_OPTIONS"
fi
# If there is a threads option defined, prepare it for use with
# the -n flag.
if [ -n "$THREADS" ]; then
THREAD_OPTIONS="-n $THREADS"
fi
# Construct argument string.
DAEMON_ARGS="-a $MECHANISMS $MECH_OPTIONS $OPTIONS $THREAD_OPTIONS"
# If there is a statoverride for the run directory, then pull
# permission and ownership information from it and create the directory.
# Otherwise, we create the directory with default permissions and
# ownership (root:sasl, 710).
if dpkg-statoverride --list $RUN_DIR > /dev/null; then
createdir `dpkg-statoverride --list $RUN_DIR`
else
createdir root sasl 710 $RUN_DIR
fi
# Start the daemon, phase 1: see if it is already running.
start-stop-daemon --start --quiet --pidfile $PIDFILE --name $NAME \
--exec $DAEMON --test > /dev/null
if [ "$?" != "0" ]; then
log_progress_msg "(already running)"
log_end_msg 0
return 0
fi
# Start the daemon, phase 2: it was not running, so actually start it now.
start-stop-daemon --start --quiet --pidfile $PIDFILE --name $NAME \
--exec $DAEMON -- $DAEMON_ARGS
if [ "$?" -ne "0" ]; then
log_end_msg 1
return 1
fi
# Started successfully.
log_end_msg 0
return 0
}
# Function that stops a single saslauthd instance
# Parameters:
# $1 = path of default file for this instance
# Return value:
# 0 on success (daemon was stopped)
# 1 if the daemon was already stopped
# 2 if the daemon could not be stopped
stop_instance()
{
# Load defaults file for this instance.
. $1
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME, cannot stop"
return 2
fi
PIDFILE=$RUN_DIR/saslauthd.pid
log_daemon_msg "Stopping $DESC" "$NAME"
start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
--pidfile $PIDFILE --exec $DAEMON
if [ "$?" -eq "2" ]; then
# Failed to stop.
log_end_msg 1
return 2
fi
if [ "$?" -eq "1" ]; then
# Already stopped.
log_progress_msg "(not running)"
fi
# Many daemons don't delete their pidfiles when they exit.
rm -f $PIDFILE
# Stopped successfully.
log_end_msg 0
return $RETVAL
}
# Function that sends a SIGHUP to a single saslauthd instance
# Parameters:
# $1 = path of default file for this instance
# Return value:
# 0 on success (does not mean the daemon was reloaded)
# other values on failure
reload_instance()
{
# Load defaults file for this instance.
. $1
# If the short name of this instance is undefined, warn the user
# but choose a default name.
if [ -z "$NAME" ]; then
log_warning_msg "Short name (NAME) undefined in $1, using default"
NAME=default
fi
# Determine run directory and pid file location by looking
# for an -m option.
RUN_DIR=`echo "$OPTIONS" | xargs -n 1 echo | sed -n '/^-m$/{n;p}'`
if [ -z "$RUN_DIR" ]; then
# No run directory defined in defaults file, fail.
log_failure_msg "No run directory defined for $NAME, cannot reload"
return 2
fi
PIDFILE=$RUN_DIR/saslauthd.pid
log_daemon_msg "Reloading $DESC" "$NAME"
# Reload the daemon. First, see if it is already running.
start-stop-daemon --start --quiet --pidfile $PIDFILE \
--exec $DAEMON --test > /dev/null
if [ "$?" -eq "0" ]; then
# Not running, signal this and stop.
log_progress_msg "(not running)"
log_end_msg 0
return 0
fi
start-stop-daemon --stop --signal 1 \
--pidfile $PIDFILE --exec $DAEMON
log_end_msg $?
}
# Function that creates a directory with the specified
# ownership and permissions
# Parameters:
# $1 = user
# $2 = group
# $3 = permissions (octal)
# $4 = path to directory
# Return value: none
createdir()
{
# In the future, use -P/-Z to have SE Linux enhancement
install -d --group="$2" --mode="$3" --owner="$1" "$4"
}
# Action switch
case "$1" in
start)
do_startall
;;
stop)
do_stopall
;;
reload|force-reload)
do_reloadall
;;
restart)
do_stopall
do_startall
;;
start-instance)
if [ -f /etc/default/$2 ]; then
start_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
stop-instance)
if [ -f /etc/default/$2 ]; then
stop_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
reload-instance|force-reload-instance)
if [ -f /etc/default/$2 ]; then
reload_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
restart-instance)
if [ -f /etc/default/$2 ]; then
stop_instance /etc/default/$2
start_instance /etc/default/$2
else
log_failure_msg "Instance $2 does not exist."
fi
;;
*)
SCRIPTNAME=$0
echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo " or {start-instance|stop-instance|restart-instance|" >&2
echo " reload-instance|force-reload-instance} " \
"<instance name>" >&2
exit 3
;;
esac
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