uniscand

#!/bin/bash

AZUL='\033[0;34m'
VERDE='\033[1;32m'
VERMELHO_CLARO='\033[1;31m'
NORMAL='\033[0m'

PID_FILE="/var/run/uniscan.pid"
INITSCRIPT="$(basename "$0")"
TIMEOUT=30

function usage(){
    echo -e " Usage:\n\t$INITSCRIPT [start|stop|restart|status|reload]" 1>&2
}

function running(){
    ps -p $(head -1 $PID_FILE) 1>&- 2>&-
    echo $?
}

function Print_Return(){
    echo -en "\r"

    case $1 in
           0) echo -en "\033[70C$AZUL[$VERDE  OK  $AZUL] $NORMAL\n";;
           *) echo -en "\033[70C$AZUL[$VERMELHO_CLARO FAIL $AZUL] $NORMAL\n";;
    esac

	return 0 
}

[ -z "$1" ] && usage && exit 1

COMMAND="$1"
shift

case $COMMAND in
status)
	[ $(running) -eq 0 ] && echo " Uniscan is running... PID: $(head -1 $PID_FILE)" || echo " Uniscan is stoped..."
    ;;
start)
	echo -n " Starting Uniscan..."
	[ $(running) -eq 1 ] && /sbin/uniscan 1>&- 2>&- &

	while [ $(running) -eq 1 ] && [ $TIMEOUT -gt 0 ]; do
		sleep 1
		((TIMEOUT--))
	done
	
	Print_Return $(running)
    ;;
stop)
	echo -n " Stoping Uniscan..."
        [ $(running) -eq 0 ] && kill $(head -1 $PID_FILE) 1>&- 2>&- &
        
        while [ $(running) -eq 0 ] && [ $TIMEOUT -gt 0 ]; do
                sleep 1
		((TIMEOUT--))
        done

	if [ $(running) -eq 0 ]; then
	        Print_Return 1
		echo -n " Forcing stop..."
		kill -9 $(head -1 $PID_FILE) 1>&- 2>&-
	fi

	Print_Return 0
    ;;
restart)
	$0 stop
	$0 start
    ;;
reload)
	echo -n " Sending HUP signal..."
	kill -s HUP $(head -1 $PID_FILE) 1>&- 2>&-
	Print_Return $?
    ;;
*)
	usage
	exit 1
esac

exit 0