[861] | 1 | package LATMOS::Accounts::Bases::Heimdal; |
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| 2 | |
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| 3 | use 5.010000; |
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| 4 | use strict; |
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| 5 | use warnings; |
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| 6 | |
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| 7 | use base qw(LATMOS::Accounts::Bases); |
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| 8 | use LATMOS::Accounts::Log; |
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| 9 | use Heimdal::Kadm5; |
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| 10 | |
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| 11 | our $VERSION = (q$Rev: 653 $ =~ /^Rev: (\d+) /)[0]; |
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| 12 | |
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| 13 | =head1 NAME |
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| 14 | |
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| 15 | LATMOS::Heimdal - Latmos Accounts support for kerberos/heimdal |
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| 16 | |
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| 17 | =head1 SYNOPSIS |
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| 18 | |
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| 19 | use LATMOS::Heimdal; |
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| 20 | blah blah blah |
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| 21 | |
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| 22 | =head1 DESCRIPTION |
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| 23 | |
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| 24 | Stub documentation for LATMOS::Heimdal, created by h2xs. It looks like the |
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| 25 | author of the extension was negligent enough to leave the stub |
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| 26 | unedited. |
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| 27 | |
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| 28 | Blah blah blah. |
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| 29 | |
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| 30 | =head1 FUNCTIONS |
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| 31 | |
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| 32 | =cut |
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| 33 | |
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| 34 | =head2 new(%options) |
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| 35 | |
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| 36 | Create a new LATMOS::Ldap object for windows AD $domain. |
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| 37 | |
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| 38 | options: |
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| 39 | |
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| 40 | =over 4 |
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| 41 | |
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| 42 | =item domain |
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| 43 | |
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| 44 | The DNS domain where information about kerberos server can be found, eg the |
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| 45 | REALM in the B<TXT> record B<kerberos> and the admin server from B<SRV> record |
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| 46 | B<_kerberos-adm._tcp>. |
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| 47 | |
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| 48 | This paramater can be omited if both B<realm> and B<server> are set. |
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| 49 | |
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| 50 | =item realm |
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| 51 | |
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| 52 | The kerberos realm to connect to. Can be omit if B<domain> is given and this DNS |
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| 53 | domain contains kerberos record. |
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| 54 | |
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| 55 | See B<domain> parameter. |
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| 56 | |
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| 57 | =item server |
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| 58 | |
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| 59 | If set, try to connect to this server, if not set, a dns query is performed |
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| 60 | to find kerberos admin server, first responding is used. |
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| 61 | |
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| 62 | See B<domain> parameter. |
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| 63 | |
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| 64 | =item ignoredusers |
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| 65 | |
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| 66 | A coma separated list of user (login) to not modify or delete in the database. |
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| 67 | |
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| 68 | The user named 'default' is automatically ignored. |
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| 69 | |
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| 70 | =back |
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| 71 | |
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| 72 | =cut |
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| 73 | |
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| 74 | sub new { |
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| 75 | my ($class, %options) = @_; |
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| 76 | |
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| 77 | my $self = { |
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| 78 | _param => { %options }, |
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| 79 | }; |
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| 80 | |
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| 81 | bless($self, $class); |
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| 82 | } |
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| 83 | |
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| 84 | sub param { |
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| 85 | my ($self, $var) = @_; |
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| 86 | return $self->{_param}{$var} |
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| 87 | } |
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| 88 | |
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| 89 | sub load { |
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| 90 | my ($self) = @_; |
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| 91 | |
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| 92 | # If already loaded, just say ok ! |
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| 93 | $self->{_heimdal} and return 1; |
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| 94 | |
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| 95 | if (!$self->param('realm')) { |
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| 96 | if ($self->param('domain')) { |
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| 97 | $self->{_param}{realm} = $self->_domain2realm or do { |
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| 98 | $self->log(LA_ERR, |
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| 99 | 'Cannot find kerberos TXT record for domain `%s\'', |
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| 100 | $self->param('domain'), |
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| 101 | ); |
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| 102 | return; |
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| 103 | }; |
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| 104 | $self->log(LA_DEBUG, 'kerberos REALM is %s', $self->param('realm')); |
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| 105 | } else { |
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| 106 | # No way to find realm |
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| 107 | return; |
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| 108 | } |
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| 109 | } |
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| 110 | my @servers = $self->param('server') |
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| 111 | ? ($self->param('server')) |
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| 112 | : $self->param('domain') |
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| 113 | ? $self->_domain2server |
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| 114 | : (); |
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| 115 | |
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| 116 | if (!@servers) { |
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| 117 | # no servers found |
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| 118 | } |
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| 119 | |
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| 120 | foreach my $server (@servers) { |
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| 121 | my $heimdal = Heimdal::Kadm5::Client->new( |
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| 122 | # RaiseErrors => 1, |
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| 123 | Server => $server, |
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| 124 | # Port => '8899', |
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| 125 | # Required: |
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| 126 | Principal => $self->param('login'), |
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| 127 | Realm => $self->param('realm'), |
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| 128 | # --- Either --- |
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| 129 | Password => $self->param('password'), |
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| 130 | # --- Or --- |
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| 131 | # Keytab => $self->param('keytab'), |
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| 132 | ); |
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| 133 | |
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| 134 | if($heimdal) { |
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| 135 | $self->log(LA_DEBUG, "Connected to heidmal server %s", |
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| 136 | $server); |
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| 137 | $self->{_heimdal} = $heimdal; |
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| 138 | last; |
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| 139 | } else { |
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| 140 | $self->log(LA_ERR, "Cannot connect to %s", $server); |
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| 141 | } |
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| 142 | } |
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| 143 | |
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| 144 | if (!$self->{_heimdal}) { |
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| 145 | $self->log(LA_ERR, "Cannot connect to any kerberos server"); |
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| 146 | return; |
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| 147 | } |
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| 148 | |
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| 149 | return 1; |
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| 150 | } |
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| 151 | |
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| 152 | sub _domain2server { |
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| 153 | my ($self) = @_; |
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| 154 | require Net::DNS; |
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| 155 | my @servers; |
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| 156 | |
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| 157 | my $resolver = Net::DNS::Resolver->new; |
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| 158 | my $query = $resolver->query("_kerberos-adm._tcp." . $self->param('domain'), |
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| 159 | "SRV") or return; |
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| 160 | foreach my $rr ( |
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| 161 | sort { $a->priority <=> $b->priority || $a->weight <=> $b->weight } |
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| 162 | grep { $_->type eq 'SRV' } $query->answer) { |
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| 163 | push(@servers, $rr->target); # $rr->port)); don't use port |
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| 164 | } |
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| 165 | |
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| 166 | @servers |
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| 167 | } |
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| 168 | sub _domain2realm { |
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| 169 | my ($self) = @_; |
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| 170 | require Net::DNS; |
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| 171 | |
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| 172 | my $resolver = Net::DNS::Resolver->new; |
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| 173 | my $query = $resolver->query( |
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| 174 | "_kerberos." . $self->param('domain'), |
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| 175 | "TXT") or return; |
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| 176 | foreach my $rr ($query->answer) { |
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| 177 | $rr->type eq 'TXT' and return $rr->txtdata; |
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| 178 | } |
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| 179 | |
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| 180 | return; |
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| 181 | } |
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| 182 | |
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| 183 | sub heimdal { |
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| 184 | return $_[0]->{_heimdal}; |
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| 185 | } |
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| 186 | |
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| 187 | package Heimdal::Kadm5; |
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| 188 | sub DESTROY { } |
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| 189 | |
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| 190 | 1; |
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| 191 | |
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| 192 | __END__ |
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| 193 | |
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| 194 | =head1 SEE ALSO |
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| 195 | |
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| 196 | =head1 AUTHOR |
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| 197 | |
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| 198 | Olivier Thauvin, E<lt>olivier.thauvin@aerov.jussieu.frE<gt> |
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| 199 | |
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| 200 | =head1 COPYRIGHT AND LICENSE |
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| 201 | |
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| 202 | Copyright (C) 2008 CNRS SA/CETP/LATMOS |
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| 203 | |
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| 204 | This library is free software; you can redistribute it and/or modify |
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| 205 | it under the same terms as Perl itself, either Perl version 5.10.0 or, |
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| 206 | at your option, any later version of Perl 5 you may have available. |
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| 207 | |
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| 208 | |
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| 209 | =cut |
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