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(%config) |
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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 | config: |
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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, %config) = @_; |
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76 | |
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77 | bless({}, $class); |
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78 | } |
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79 | |
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80 | sub load { |
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81 | my ($self) = @_; |
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82 | |
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83 | # If already loaded, just say ok ! |
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84 | $self->{_heimdal} and return 1; |
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85 | |
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86 | if (!$self->config('realm')) { |
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87 | if ($self->config('domain')) { |
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88 | $self->{_config}{realm} = $self->_domain2realm or do { |
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89 | $self->log(LA_ERR, |
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90 | 'Cannot find kerberos TXT record for domain `%s\'', |
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91 | $self->config('domain'), |
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92 | ); |
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93 | return; |
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94 | }; |
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95 | $self->log(LA_DEBUG, 'kerberos REALM is %s', $self->config('realm')); |
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96 | } else { |
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97 | # No way to find realm |
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98 | return; |
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99 | } |
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100 | } |
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101 | my @servers = $self->config('server') |
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102 | ? ($self->config('server')) |
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103 | : $self->config('domain') |
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104 | ? $self->_domain2server |
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105 | : (); |
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106 | |
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107 | $self->log(LA_DEBUG, 'kerberos servers are %s', join(', ', @servers)); |
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108 | |
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109 | if (!@servers) { |
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110 | $self->log(LA_ERROR, "no heimdal servers found"); |
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111 | return; |
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112 | } |
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113 | |
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114 | foreach my $server (@servers) { |
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115 | my $heimdal = Heimdal::Kadm5::Client->new( |
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116 | # RaiseErrors => 1, |
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117 | Server => $server, |
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118 | # Port => '8899', |
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119 | # Required: |
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120 | Principal => $self->config('login'), |
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121 | Realm => $self->config('realm'), |
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122 | # --- Either --- |
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123 | Password => $self->config('password'), |
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124 | # --- Or --- |
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125 | # Keytab => $self->config('keytab'), |
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126 | ); |
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127 | |
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128 | if($heimdal) { |
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129 | $self->log(LA_DEBUG, "Connected to heidmal server %s", |
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130 | $server); |
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131 | $self->{_heimdal} = $heimdal; |
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132 | last; |
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133 | } else { |
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134 | $self->log(LA_ERR, "Cannot connect to %s", $server); |
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135 | } |
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136 | } |
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137 | |
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138 | if (!$self->{_heimdal}) { |
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139 | $self->log(LA_ERR, "Cannot connect to any kerberos server"); |
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140 | return; |
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141 | } |
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142 | |
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143 | return 1; |
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144 | } |
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145 | |
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146 | sub _domain2server { |
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147 | my ($self) = @_; |
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148 | require Net::DNS; |
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149 | my @servers; |
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150 | |
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151 | my $resolver = Net::DNS::Resolver->new; |
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152 | my $query = $resolver->query("_kerberos-adm._tcp." . $self->config('domain'), |
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153 | "SRV") or return; |
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154 | foreach my $rr ( |
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155 | sort { $a->priority <=> $b->priority || $a->weight <=> $b->weight } |
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156 | grep { $_->type eq 'SRV' } $query->answer) { |
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157 | push(@servers, $rr->target); # $rr->port)); don't use port |
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158 | } |
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159 | |
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160 | @servers |
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161 | } |
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162 | sub _domain2realm { |
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163 | my ($self) = @_; |
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164 | require Net::DNS; |
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165 | |
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166 | my $resolver = Net::DNS::Resolver->new; |
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167 | my $query = $resolver->query( |
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168 | "_kerberos." . $self->config('domain'), |
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169 | "TXT") or return; |
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170 | foreach my $rr ($query->answer) { |
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171 | $rr->type eq 'TXT' and return $rr->txtdata; |
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172 | } |
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173 | |
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174 | return; |
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175 | } |
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176 | |
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177 | =head2 heimdal |
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178 | |
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179 | Return heimdal handle. |
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180 | |
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181 | =cut |
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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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