DEFUSER=alex
declare -i TRUE=0
declare -i FALSE=1

# files from 2 hosts considered same time 
MAXTIMEDIFF=5

if [ "z$(which usleep)" = "z" ]
then 
  function  usleep ()
  {
  tutu=`expr $1 / 1000000`
  sleep $tutu
  }
fi

# give opportunity to read output
function  hit ()
{
 echo $*
 echo "Hit ENTER to continue"; 
 echo -e '\a'; usleep 100000 ; echo -e '\a'	
 # echo -e '\a'
 read ; 
}
# verbose only version
function  vhit ()
{
 if  [[ z"$verbose" = z"true" || z"$verbose" = z"TRUE"|| z"$verbose" = z"OUI" ]];
 then
   echo $*
   echo "Hit ENTER to continue"; 
   echo -e '\a'; usleep 100000 ; echo -e '\a'		
   # echo -e '\a'
   read ;
 fi
}
# debug only version
function  debug_hit ()
{
 if [ z$BASH_DEBUG != z ]
 then
   echo $*
   echo "Hit ENTER to continue"; 
   echo -e '\a'; usleep 100000 ; echo -e '\a'	
#   echo -e '\a'
   read ;
 fi
}

# question string is given as argument
# if a second argument askit equal to false is given returns yes without asking.
function y_or_n ()
{
 if [[ z$2 = "zfalse" || z$2 = "zFALSE" || z$2 = "zNON" ]];
 then
  return 0
 fi
 REPLY=
 until [ z$REPLY = "zy" ] || [ z$REPLY = "zn" ] || [ z$REPLY = "zyes" ] || [ z$REPLY = "zno" ]
 do 
 echo ${1}\?;
 echo -e '\a'; usleep 200000 ; echo -e '\a'Please answer y or n.
 read 
# REPLY=$(echo $REPLY | tr ' ' '_')
#  REPLY=$(echo $REPLY)
  REPLY=$(echo $REPLY | tr "[A-Z]" "[a-z]")
 echo REPLY is $REPLY
 done

 if [ z$REPLY = "zy" -o z$REPLY = "zyes" ];
 then
 # echo do it
  return 0
 else
 # echo don\'t do it
  return 3
 fi
}

# ask for a string
function gimme_a_string ()
{
 REPLY=
 until [ z$REPLY != z ]
 do 
 echo ${1}\?;
 echo -e '\a'; usleep 200000 ; echo -e '\a'Please give me a string.
 read
 done
}

# args are a question followed by the allowed answers
function gimme_an_answer ()
{
 if [ $# -lt 2 ]; then echo "gimme_an_answer: bad args to function."; exit 1; fi
 question=$1
 shift
 REPLY=
 accept=0
 until [ $accept -eq 1 ] 
 do 
  echo ${question}\?;
   echo -e '\a'; usleep 200000 ; echo -e '\a'Please give me an answer among: "$@"
  read
  for answer in "$@"; 
   do
     if [ "z$answer" = "z$REPLY" ]
     then
       accept=1
     fi
   done
 done
}

function debug_echo () # $*=blabla 
{
 # echo BASH_DEBUG = $BASH_DEBUG;
 # if [ z$BASH_DEBUG != z ]; then echo $* 1>&2 ; fi
 if [ z$BASH_DEBUG != z ]; then echo $* ; fi
}

function isnumber () # $*=blabla 
{
 number=$1;
 number=${number##0x}
 number=${number##0X}	
 number=${number##0}
 #echo number = $number
 number=`echo $number | sed 's/[0-9]*//g'`
 number=`echo $number | sed 's/[A-F]*//g'`	
 #echo number = $number
 if [ -z $number ]; then testnb=true; else testnb=false; fi;
}

function noroot ()
{
 if [ $(whoami) = root ]
 then 
   if [ "z$1" != "z" ]
   then
	 echo $1
   else
	 echo "Please don't run this as root"
   fi
         exit 0
 fi
}

function beroot ()
{
 if [ $(whoami) != root ]
 then 
   echo "You must be root to do this."
   exit 0
 fi
}

function pourdevrai ()
{
if  [[ z"$testing" = "z" || z"$testing" = z"false" || z"$testing" = z"FALSE"|| z"$testing" = z"NON" ]]
then return 0  # pourdevrai true
else
return 1  # pourdevrai false
fi
}

function showdo ()
{
 showdocom="$*"
 echo $showdocom
 pourdevrai
 if  [ $? = 0 ]
 then
 # echo case yes
  $showdocom
  return $?
else	
 # echo case no
  return $?
 fi
}


function showdo2 ()
{
 showdocom="$@"
 eval "echo $showdocom"
 pourdevrai
 if  [ $? = 0 ]
 then
  eval $showdocom
 fi
}


function showdoask ()
{
 showdocom="$*"
 echo $showdocom
 y_or_n "Do it"
 if [ $? = 0 ]
 then # echo Doing it
   pourdevrai
   if  [ $? = 0 ]
   then $showdocom ; 
   else echo testing only; 
   fi
   return 0
 else echo Not doing it.
   return 1
 fi
}

function showdoroot ()
{
 showdocom="$*"
 echo $showdocom
 vecho "In showdoroot showdocom is $showdocom" 
 pourdevrai
 if  [ $? = 0 ]
 then
  if [ $(whoami) = root ]
  then
   $showdocom
  else
   su -m -c "$showdocom"
  fi
 fi
}

function showdoaskroot ()
{
 showdocom="$*"
 echo $showdocom
  y_or_n "Do it"
  if [ $? = 0 ]
  then # echo Doing it
    pourdevrai
    if  [ $? = 0 ]
    then 
      if [ $(whoami) = root ]
      then
       $showdocom
      else
       su -m -c "$showdocom"
      fi
    else  echo testing only; 
    fi
    return 0
  else echo Not doing it.
    return 1
  fi
}

function vecho ()
{
 if  [[ z"$verbose" = z"true" || z"$verbose" = z"TRUE"|| z"$verbose" = z"OUI" ]];
 then
   echo $*
 fi
}

# this one comments its output:
function cvecho ()
{
 if  [[ z"$verbose" = z"true" || z"$verbose" = z"TRUE"|| z"$verbose" = z"OUI" ]];
 then
   echo \# $*
 fi
}
# exit from script if the environment variable is not defined.
function envassert ()
{
 if [ "z${!1}" = "z" ]
 then
 echo "Environment variable $1 must be defined for this script to run."
 exit 1
 fi
}


# exit if cd fails
function  safecd ()
{
 cd $1
 if [ $? != 0 ]
 then echo "Could not change directory, exiting ..."  
 exit 1 
 fi	
}

caller=$(basename $0)
# caller=$0
lastpasswdfile=$HOME/tmp/lastpasswd.txt
function logpass ()
{
echo caller is $caller
debug_echo "In logpass pass is $pass"
if [ z$pass = z ]
then
 logger -t $caller "$caller used no pass."
else
 echo $pass | gpg -e --default-recipient-self | gpg --enarmor > $lastpasswdfile
fi
# retrieve using
# cat $lastpasswdfile | gpg --dearmor | gpg -d 
}