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- #!/bin/sh
- ### BEGIN INIT INFO
- # Provides: mjpg-streamer
- # Required-Start: $local_fs networking
- # Required-Stop:
- # Should-Start:
- # Should-Stop:
- # Default-Start: 2 3 4 5
- # Default-Stop: 0 1 6
- # Short-Description: mjpg-streamer daemon
- # Description: Starts the mjpg-streamer daemon with the user specified in
- # /etc/default/mjpg-streamer.
- ### END INIT INFO
- # Author: Sami Olmari
- PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
- DESC="mjpg-streamer Daemon"
- NAME="mjpg-streamer"
- DAEMON=mjpg-streamer
- PIDFILE=/var/run/$NAME.pid
- PKGNAME=mjpg-streamer
- SCRIPTNAME=/etc/init.d/$PKGNAME
- # Read configuration variable file if it is present
- [ -r /etc/default/$PKGNAME ] && . /etc/default/$PKGNAME
- # Exit if the mjpg-streamer is not installed
- [ -x "$DAEMON_HOME/$DAEMON" ] || exit 0
- # Load the VERBOSE setting and other rcS variables
- [ -f /etc/default/rcS ] && . /etc/default/rcS
- # Define LSB log_* functions.
- # Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
- . /lib/lsb/init-functions
- if [ -z "$RUN_AT_STARTUP" -o "$RUN_AT_STARTUP" != "YES" ]
- then
- log_warning_msg "Not starting $PKGNAME, edit /etc/default/$PKGNAME to start it."
- exit 0
- fi
- if [ -z "$MJPG_STREAMER_USER" ]
- then
- log_warning_msg "Not starting $PKGNAME, MJPG_STREAMER_USER not set in /etc/default/$PKGNAME."
- exit 0
- fi
- #
- # Function to verify if a pid is alive
- #
- is_alive()
- {
- pid=`cat $1` > /dev/null 2>&1
- kill -0 $pid > /dev/null 2>&1
- return $?
- }
- #
- # Function that starts the daemon/service
- #
- do_start()
- {
- # Return
- # 0 if daemon has been started
- # 1 if daemon was already running
- # 2 if daemon could not be started
- is_alive $PIDFILE
- RETVAL="$?"
- if [ $RETVAL != 0 ]; then
- start-stop-daemon --start --background --quiet --pidfile $PIDFILE --make-pidfile \
- --exec $DAEMON_HOME/$DAEMON --chuid $MJPG_STREAMER_USER --user $MJPG_STREAMER_USER --umask $UMASK -- $DAEMON_ARGS
- RETVAL="$?"
- fi
- }
- #
- # Function that stops the daemon/service
- #
- do_stop()
- {
- # Return
- # 0 if daemon has been stopped
- # 1 if daemon was already stopped
- # 2 if daemon could not be stopped
- # other if a failure occurred
- start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --user $MJPG_STREAMER_USER --pidfile $PIDFILE
- RETVAL="$?"
- [ "$RETVAL" = "2" ] && return 2
- rm -f $PIDFILE
- [ "$RETVAL" = "0" ] && return 0 || return 1
- }
- case "$1" in
- start)
- [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
- do_start
- case "$?" in
- 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
- 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
- esac
- ;;
- stop)
- [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
- do_stop
- case "$?" in
- 0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
- 2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
- esac
- ;;
- restart)
- log_daemon_msg "Restarting $DESC" "$NAME"
- do_stop
- case "$?" in
- 0|1)
- do_start
- case "$?" in
- 0) log_end_msg 0 ;;
- 1) log_end_msg 1 ;; # Old process is still running
- *) log_end_msg 1 ;; # Failed to start
- esac
- ;;
- *)
- # Failed to stop
- log_end_msg 1
- ;;
- esac
- ;;
- *)
- echo "Usage: $SCRIPTNAME {start|stop|restart}" >&2
- exit 3
- ;;
- esac
- :
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