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

   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 amlibexecdir="@amlibexecdir@"
  14 . "${amlibexecdir}/amanda-sh-lib.sh"
  15
  16 debugdir=@AMANDA_DBGDIR@
  17
  18 # add sbin and ucb dirs
  19 PATH="$PATH:/usr/sbin:/sbin:/usr/ucb"
  20 export PATH
  21
  22 if [ -d "$debugdir" ]
  23 then
  24         logfile=$debugdir/changer.debug
  25 else
  26         logfile=/dev/null
  27 fi
  28 exec 2> $logfile
  29 set -x
  30
  31 USE_VERSION_SUFFIXES="@USE_VERSION_SUFFIXES@"
  32 if test "$USE_VERSION_SUFFIXES" = "yes"; then
  33         SUF="-@VERSION@"
  34 else
  35         SUF=
  36 fi
  37
  38 myname=$0
  39
  40 EGREP='@EGREP@'
  41
  42 firstslot=1
  43 totalslots=200
  44
  45 changerfile=`amgetconf$SUF changerfile`
  46
  47 tapedev="null:/dev/xxx$$"
  48
  49 cleanfile=$changerfile-clean
  50 accessfile=$changerfile-access
  51 slotfile=$changerfile-slot
  52 [ ! -f $cleanfile ] && echo 0 > $cleanfile
  53 [ ! -f $accessfile ] && echo 0 > $accessfile
  54 [ ! -f $slotfile ] && echo $firstslot > $slotfile
  55 cleancount=`cat $cleanfile`
  56 accesscount=`cat $accessfile`
  57 slot=`cat $slotfile`
  58
  59 rc=0
  60
  61 case x$1 in
  62
  63 x-slot)
  64
  65     #
  66     # handle special slots...
  67     #
  68     case "$2" in
  69     current)    newslot=$slot           ; load=true;;
  70     next)       newslot=`expr $slot + 1`; load=true;;
  71     advance)    newslot=`expr $slot + 1`; load=false;;
  72     prev)       newslot=`expr $slot - 1`; load=true;;
  73     first)      newslot=0               ; load=true;;
  74     last)       newslot=-1              ; load=true;;
  75     *)          newslot=$2              ; load=true;;
  76     esac
  77
  78     if [ 0 -gt $newslot ]
  79     then
  80         newslot=`expr $totalslots - 1`
  81     fi
  82
  83     if [ $totalslots -le  $newslot ]
  84     then
  85         newslot=0
  86     fi
  87     echo $newslot > $changerfile-slot
  88     slot=$newslot
  89     echo $slot $tapedev
  90     ;;
  91
  92 x-info)
  93     echo $slot $totalslots 1
  94     ;;
  95
  96 x-eject)
  97     echo $slot $tapedev
  98     ;;
  99 esac
 100
 101 exit $rc