git.gag.com Git - debian/amanda/blob - changer-src/chg-null.sh.in

   1 #!@SHELL@
   2 #
   3 # Exit Status:
   4 # 0 Alles Ok
   5 # 1 Illegal Request
   6 # 2 Fatal Error
   7 #
   8
   9 # try to hit all the possibilities here
  10 prefix=@prefix@
  11 exec_prefix=@exec_prefix@
  12 sbindir=@sbindir@
  13 libexecdir=@libexecdir@
  14 debugdir=@AMANDA_DEBUGDIR@
  15
  16 PATH=$sbindir:$libexecdir:/usr/bin:/bin:/usr/sbin:/sbin:/usr/ucb
  17 export PATH
  18
  19 if [ -d "$debugdir" ]
  20 then
  21         logfile=$debugdir/changer.debug
  22 else
  23         logfile=/dev/null
  24 fi
  25 exec 2> $logfile
  26 set -x
  27
  28 USE_VERSION_SUFFIXES="@USE_VERSION_SUFFIXES@"
  29 if test "$USE_VERSION_SUFFIXES" = "yes"; then
  30         SUF="-@VERSION@"
  31 else
  32         SUF=
  33 fi
  34
  35 myname=$0
  36
  37 EGREP='@EGREP@'
  38
  39 firstslot=1
  40 totalslots=200
  41
  42 changerfile=`amgetconf$SUF changerfile`
  43
  44 tapedev="null:/dev/xxx$$"
  45
  46 cleanfile=$changerfile-clean
  47 accessfile=$changerfile-access
  48 slotfile=$changerfile-slot
  49 [ ! -f $cleanfile ] && echo 0 > $cleanfile
  50 [ ! -f $accessfile ] && echo 0 > $accessfile
  51 [ ! -f $slotfile ] && echo $firstslot > $slotfile
  52 cleancount=`cat $cleanfile`
  53 accesscount=`cat $accessfile`
  54 slot=`cat $slotfile`
  55
  56 rc=0
  57
  58 case x$1 in
  59
  60 x-slot)
  61
  62     #
  63     # handle special slots...
  64     #
  65     case "$2" in
  66     current)    newslot=$slot           ; load=true;;
  67     next)       newslot=`expr $slot + 1`; load=true;;
  68     advance)    newslot=`expr $slot + 1`; load=false;;
  69     prev)       newslot=`expr $slot - 1`; load=true;;
  70     first)      newslot=0               ; load=true;;
  71     last)       newslot=-1              ; load=true;;
  72     *)          newslot=$2              ; load=true;;
  73     esac
  74
  75     if [ 0 -gt $newslot ]
  76     then
  77         newslot=`expr $totalslots - 1`
  78     fi
  79
  80     if [ $totalslots -le  $newslot ]
  81     then
  82         newslot=0
  83     fi
  84     echo $newslot > $changerfile-slot
  85     slot=$newslot
  86     echo $slot $tapedev
  87     ;;
  88
  89 x-info)
  90     echo $slot $totalslots 1
  91     ;;
  92
  93 x-eject)
  94     echo $slot $tapedev
  95     ;;
  96 esac
  97
  98 exit $rc