--- loncom/lonnet/perl/lonnet.pm	2019/08/19 17:35:34	1.1172.2.111
+++ loncom/lonnet/perl/lonnet.pm	2019/08/22 00:16:39	1.1172.2.113
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1172.2.111 2019/08/19 17:35:34 raeburn Exp $
+# $Id: lonnet.pm,v 1.1172.2.113 2019/08/22 00:16:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -897,6 +897,7 @@ sub userload {
 	while ($filename=readdir(LONIDS)) {
 	    next if ($filename eq '.' || $filename eq '..');
 	    next if ($filename =~ /publicuser_\d+\.id/);
+            next if ($filename =~ /^[a-f0-9]+_linked\.id$/);
 	    my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
 	    if ($curtime-$mtime < 1800) { $numusers++; }
 	}
@@ -1195,6 +1196,9 @@ sub changepass {
     } elsif ($answer =~ "invalid_client") {
         &logthis("$server refused to change $uname in $udom password because ".
                  "it was a reset by e-mail originating from an invalid server.");
+    } elsif ($answer =~ "^prioruse") {
+       &logthis("$server refused to change $uname in $udom password because ".
+                "the password had been used before");
     }
     return $answer;
 }
@@ -2464,6 +2468,29 @@ sub retrieve_instcodes {
     return $totcodes;
 }
 
+# --------------------------------------------- Get domain config for passwords
+
+sub get_passwdconf {
+    my ($dom) = @_;
+    my (%passwdconf,$gotconf,$lookup);
+    my ($result,$cached)=&is_cached_new('passwdconf',$dom);
+    if (defined($cached)) {
+        if (ref($result) eq 'HASH') {
+            %passwdconf = %{$result};
+            $gotconf = 1;
+        }
+    }
+    unless ($gotconf) {
+        my %domconfig = &get_dom('configuration',['passwords'],$dom);
+        if (ref($domconfig{'passwords'}) eq 'HASH') {
+            %passwdconf = %{$domconfig{'passwords'}};
+        }
+        my $cachetime = 24*60*60;
+        &do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
+    }
+    return %passwdconf;
+}
+
 # --------------------------------------------------- Assign a key to a student
 
 sub assign_access_key {