--- /dev/null
+#!@PERL@
+
+# Catch for sh/csh on systems without #! ability.
+eval '(exit $?0)' && eval 'exec @PERL@ -S $0 ${1+"$@"}'
+ & eval 'exec @PERL@ -S $0 $argv:q'
+ if 0;
+
+# rth-changer -
+# A tape changer script for the Robotic Tape Handling system OEM'd
+# by Andataco (RTH-406) for use with Amanda, the Advanced Maryland
+# Network Disk Archiver.
+#
+# Author: Erik Frederick 1/10/97
+# edf@tyrell.mc.duke.edu
+#
+# This changer script controls the HP c1553 tape drive via a
+# Peripheral Vision Inc. SCSI control subsystem that interprets
+# commands sent on the SCSI bus. It may work with other tape drives
+# containing the PVI board.
+#
+# Permission to freely use and distribute is granted.
+#
+
+require 5.001;
+
+use Getopt::Long;
+
+delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV', 'PATH'};
+$ENV{'PATH'} = "/usr/bin:/usr/sbin:/sbin:/bin";
+
+$pname = "rth-changer";
+
+$prefix="@prefix@";
+$prefix=$prefix; # avoid warnings about possible typo
+$exec_prefix="@exec_prefix@";
+$exec_prefix=$exec_prefix; # ditto
+$sbindir="@sbindir@";
+$amlibexecdir="@amlibexecdir@";
+if ("@USE_VERSION_SUFFIXES@" eq "yes") {
+ $suf = "-@VERSION@";
+} else {
+ $suf = "";
+}
+
+if (-x "$sbindir/ammt$SUF") {
+ $MT="$sbindir/ammt$SUF";
+ $MTF="-f";
+} elsif (-x "@MT@") {
+ $MT="@MT@";
+ $MTF="@MT_FILE_FLAG@";
+} else {
+ print "<none> $pname: mt program not found\n";
+ exit(1);
+}
+
+$tapeDevice=`$sbindir/amgetconf$SUF tapedev`;
+die "tapedev not found in amanda.conf"
+ if !$tapeDevice or $tapeDevice eq "" or
+ $tapeDevice =~ m/no such parameter/;
+
+sub getCurrentTape {
+
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for getting current tape: $!\n";
+ exit(2);
+ }
+ if (syswrite(RTH, "Rd_ElS", 6) != 6) {
+ print "$currentTape $pname: error in writing `Rd_ElS' to `$tapeDevice': $!\n";
+ exit(2);
+ }
+ if (!close(RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' for getting current tape: $!\n";
+ exit(2);
+ }
+
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for getting current tape: $!\n";
+ exit(2);
+ }
+ if (sysread(RTH, $status, 136) != 136) {
+ print "$currentTape $pname: error in reading rth status.\n";
+ exit(2);
+ }
+ if (!close(RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' for getting current tape: $!\n";
+ exit(2);
+ }
+
+ @statusBits=unpack("c*",$status);
+
+ if( ($statusBits[18] == 0x1) || ($statusBits[18]== 0x9)) {
+ return ($statusBits[27]-1);
+ }
+
+ return (0);
+}
+
+
+sub getTapeStatus {
+
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for getting tape status: $!\n";
+ exit(2);
+ }
+ if (syswrite(RTH, "Rd_ElS", 6) != 6) {
+ print "$currentTape $pname: error in writing `Rd_ElS' to `$tapeDevice': $!\n";
+ exit(2);
+ }
+ if (!close(RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' for getting tpae status: $!\n";
+ exit(2);
+ }
+
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for getting tape status: $!\n";
+ exit(2);
+ }
+ if (sysread(RTH, $status, 136) != 136) {
+ print "$currentTape $pname: error in reading rth status for tape $currentTape.\n";
+ exit(2);
+ }
+ if (!close(RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' for getting tape status: $!\n";
+ exit(2);
+ }
+
+ @statusBits=unpack("c*",$status);
+
+ $curTape=0;
+ for($i=42;$i<187;$i+=16) {
+ if($statusBits[$i] == 0x9) {
+ $slots[$curTape] = 1;
+ }
+ else {
+ $slots[$curTape] = 0;
+ }
+ $curTape++;
+ }
+
+ return (@slots);
+}
+
+sub rthLoad {
+ my($tape) = @_;
+
+ $command = sprintf "GeT%d", $tape;
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for loading tape: $!\n";
+ exit(2);
+ }
+ if (syswrite(RTH, $command, 4) != 4) {
+ print "$currentTape $pname: error in loading tape by writing `$command' to `$tapeDevice': $!\n";
+ exit(2);
+ }
+ if (!close (RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' when trying to load tape: $!\n";
+ exit(2);
+ }
+}
+
+sub rthUnload {
+ my($tape) = @_;
+
+ $command = sprintf "PuT%d", $tape;
+ if (!sysopen(RTH, $tapeDevice, 2)) {
+ print "$currentTape $pname: error in opening `$tapeDevice' for unloading tape: $!\n";
+ exit(2);
+ }
+ if (syswrite(RTH, $command, 4) != 4) {
+ print "$currentTape $pname: error in unloading tape by writing `$command' to `$tapeDevice': $!\n";
+ exit(2);
+ }
+ if (!close (RTH)) {
+ print "$currentTape $pname: error in closing `$tapeDevice' when trying to unload tape: $!\n";
+ exit(2);
+ }
+}
+
+sub testTape {
+ my($tape) = @_;
+
+ @slots=getTapeStatus();
+
+ if($currentTape == $tape) {
+ return;
+ }
+
+ if($slots[$tape-1] == 0) {
+ print "<none> $pname: no tape in slot requested\n";
+ exit(1);
+ }
+ if($tape>6) {
+ print $tape," $pname: requested a tape > 6\n";
+ exit(2);
+ }
+ if($tape<1) {
+ print $tape," $pname: requested a tape < 1\n";
+ exit(2);
+ }
+ return;
+}
+
+sub changeTape {
+ my($tape) = @_;
+
+ if($tape==$currentTape) {
+ return;
+ }
+
+ testTape($tape);
+
+ if($currentTape==0) {
+ rthLoad($tape);
+ $currentTape=$tape;
+ return;
+ }
+ else {
+ rthUnload($currentTape);
+ rthLoad($tape);
+ $currentTape=$tape;
+ }
+}
+
+
+$result = &GetOptions("slot=s", "info", "reset", "eject");
+
+system($MT, 'rewind');
+
+$nSlots=6;
+$firstTape=1;
+$lastTape=6;
+$currentTape=getCurrentTape();
+
+if($opt_slot) {
+ if($opt_slot =~ /first/) {
+ changeTape(1);
+ print $currentTape, " ", $tapeDevice, "\n";
+ }
+ if($opt_slot =~ /last/) {
+ changeTape(6);
+ print $currentTape, " ", $tapeDevice, "\n";
+ }
+ if($opt_slot =~ /current/) {
+ changeTape($currentTape);
+ print $currentTape, " ", $tapeDevice, "\n";
+ }
+ if($opt_slot =~ /next/) {
+ $tape=$currentTape+1;
+ if ($tape>6) {
+ $tape=1;
+ }
+ changeTape($tape);
+ print $currentTape, " ", $tapeDevice,"\n";
+ }
+ if($opt_slot =~ /prev/) {
+ $tape=$currentTape-1;
+ if($tape<1) {
+ $tape=6;
+ }
+ changeTape($tape);
+ print $currentTape, " ", $tapeDevice,"\n";
+ }
+ if($opt_slot =~ /\d/) {
+ changeTape($opt_slot);
+ print $currentTape, " ", $tapeDevice,"\n";
+ }
+ if($opt_slot =~ /advance/) {
+ $tape=$currentTape+1;
+ if ($tape>6) {
+ $tape=1;
+ }
+ if($currentTape) {
+ rthUnload($currentTape);
+ }
+ print $currentTape, " ", "/dev/null","\n";
+ }
+
+ exit 0;
+}
+
+if($opt_info) {
+
+ print $currentTape, " 6 1\n";
+
+ exit 0;
+}
+
+if($opt_reset) {
+ changeTape(1);
+ print $currentTape, " ",$tapeDevice,"\n";
+ exit 0;
+}
+
+if($opt_eject) {
+ if($currentTape) {
+ rthUnload($currentTape);
+ print "0 ",$tapeDevice,"\n";
+ exit 0;
+ }
+ else {
+ print "0 $pname: drive was not loaded\n";
+ exit 1;
+ }
+}
+
+print "$pname: No command was received. Exiting.\n";
+exit 1;
projects / debian / amanda / blobdiff