diff --git a/scripts/prt-auf b/scripts/prt-auf
index 3efcd4b..96585b7 100755
--- a/scripts/prt-auf
+++ b/scripts/prt-auf
@@ -14,7 +14,7 @@ use strict;
 my $title="prt-auf";                   my $version=0.51; my $cache_ver="V5.1";
 my $CONFDIR = "/var/lib/pkg";          my $prtalias="/etc/prt-get.aliases";
 my $pkgdb="$CONFDIR/db";               my $prtlocker="$CONFDIR/prt-get.locker";
-my $prtcache="$CONFDIR/prt-get.cache"; my @LOCKED; my %ALIASES; my %DEPENDS;
+my $prtcache="$CONFDIR/prt-get.cache"; my %LOCKED; my %ALIASES; my %DEPENDS;
 my @allports; my %V_REPO; my %V_INST;  my %DESC; my %SOFTDEPS;
 my @results; my $strf; my $ind;  my $hh; my $portpath; my $built_pkg;
 my %osearch = ( cache=>0, regex=>0, path=>0, exact=>0, verbose=>0 );
@@ -113,7 +113,7 @@ if (($action =~ /^(listinst|listorphans|dependent)/) and
 	  if ($action =~ /^(current|isinst)$/) { print "$diffline\n"; next; }
           my ($diffN, $diffI, $diffR) = split(/ /, $diffline);
           next if (($osearch{filter}) and ($diffN !~ /$osearch{filter}/));
-          next if ((grep {$_ eq $diffN} @LOCKED) and ($odepends{all}==0));
+          next if (($LOCKED{$diffN}) and ($odepends{all}==0));
           printf "$format", $diffN, $diffI, $diffR if ($action eq "diff");
           printf "%s ", $diffN if ($action eq "quickdiff");
       }
@@ -140,7 +140,7 @@ if (($action =~ /^(listinst|listorphans|dependent)/) and
   my @fields = ("Name", "Repository", "Version", "Release", "Description",
      "Dependencies", "URL", "Optional Deps", "Maintainer",
      "Readme", "PreInstall", "PostInstall");
-  for (my $i=0; $i<9; $i++) { printf $strf, $fields[$i], $results[$i]; }
+  for (my $i=0; $i<9; $i++) { printf $strf, $fields[$i], $results[$i] unless ($results[$i] =~ /^\s*$/); }
 } elsif ($action eq "remove") {
   my %removed = %$ind;
   my @successes = grep { $removed{$_}==1 } keys %removed;
@@ -310,8 +310,8 @@ sub get_locked_and_aliased {
         close (AL);
     }
     if (-f $prtlocker) {
-        open (LK, $prtlocker) or return;
-        while (<LK>) { push (@LOCKED, $_) unless /^\s*$/; }
+        open (LK, $prtlocker);
+        while (<LK>) { chomp; $LOCKED{$_}=1 unless /^\s*$/; }
         close (LK);
     }
 }
@@ -355,7 +355,7 @@ sub printf_ports {
       foreach my $pp (@targets) {
         $p = (split /\//, $pp)[-1];
 	@pstats = get_pkgfile_fields($pp,"all");
-	$pstats[12] = (grep /^$p$/, @LOCKED) ? "yes" : "no";
+	$pstats[12] = ($LOCKED{$p}) ? "yes" : "no";
 	$pstats[13] = (grep /^$p$/, keys %V_INST) ? "yes" : "no";
 	if (($pstats[13] eq "yes") and ($V_INST{$p} ne $V_REPO{$p})) {
 		$pstats[13] = "diff" }
@@ -488,13 +488,13 @@ sub uninstall {
   foreach my $t (@targets) {
     ($opkg{test} eq "no") ? system($PKGRM,$opkg{rargs},$t) : print "$PKGRM $opkg{rargs} $t\n";
     $removed{$t}=1 if ($?>>8 == 0);
-    if ((grep /^$t$/, @LOCKED) and ($opkg{test} eq "no")) { port_unlock($t); }
+    if (($LOCKED{$t}) and ($opkg{test} eq "no")) { port_unlock($t); }
   }
   return \%removed;
 }
 
 sub port_lock {
-  my %oldlocks = map { $_ => "L" } @LOCKED;
+  my %oldlocks = map { $_ => "L" } keys %LOCKED;
   my @newlocks = grep { ! defined $oldlocks{$_} } @_;
   if (@newlocks) {
     open (LK,'>>',$prtlocker) or die "cannot open $prtlocker for writing.\n";
@@ -507,7 +507,7 @@ sub port_lock {
 
 sub port_unlock {
   my %unlocks = map { $_ => "U" } @_;
-  my @newlocks = grep { ! defined $unlocks{$_} } @LOCKED;
+  my @newlocks = grep { ! defined $unlocks{$_} } keys(%LOCKED);
   open (LL, '>', $prtlocker."-tmp");
   foreach my $nl (@newlocks) { print LL "$nl\n" unless $nl =~ /^\s*$/; }
   close (LL);
@@ -529,7 +529,7 @@ sub list_ports {
       push (@found, $lp) if (-f "$lp/Pkgfile");
     }
   } elsif ($subset eq "inst") { @found = keys %V_INST;
-  } elsif ($subset eq "locked") { @found=@LOCKED;
+  } elsif ($subset eq "locked") { @found = keys %LOCKED;
   } elsif ($subset =~ /^(orphans|dependent|deptree)$/) {
     my $seed; my $sseed;
     our @searchspace=(($subset eq "orphans") or ($odepends{all} == 0)) ?
@@ -725,7 +725,7 @@ sub deporder { # returns a sorted list of packages required.
 }
 
 sub up_inst {  # returns scalar references to five arrays
-  my @requested=@_; my @sortedList; my @targets; my %EXEMPT; my %pdirs;
+  my @requested=@_; my @sortedList; my @targets; my %pdirs;
   my %builtpkg; my %mkcmd; my %addcmd; my %logfile; my %pvars; my $status;
   my %ok; my %not_ok; my %ok_pre; my %ok_post; my @ok_readme=();
   my $PKGMK=$opkg{makecommand}; my $PKGADD=$opkg{addcommand};
@@ -746,8 +746,7 @@ sub up_inst {  # returns scalar references to five arrays
   }
 
   # exempt any locked ports from being updated
-  %EXEMPT = map { $_ => 1 } @LOCKED;
-  @targets = grep {(! $EXEMPT{$_})} @targets unless $opkg{nolock}==1;
+  @targets = grep {(! $LOCKED{$_})} @targets;
 
   # first determine the directories from which pkgmk must be called,
   #   the package that will appear after a successful build,