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package Net::DNS::Check::NSQuery; |
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use strict; |
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use Net::DNS; |
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207
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use Net::DNS::Check::Host; |
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1
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21
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1
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5
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use Net::DNS::Check::HostsList; |
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29
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5
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use Net::DNS::Check::Config; |
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use Carp; |
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1913
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# use Data::Dumper; |
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sub new { |
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my ($class, %param) = @_; |
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15
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0
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return 0 if (!$param{domain} || ! $param{nserver}); |
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17
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18
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0
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my $self = {}; |
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20
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# Nome del dominio |
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0
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$self->{domain} = $param{domain}; |
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22
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0
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$self->{qdomain} = $param{domain}; |
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0
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$self->{qdomain} =~ s/\./\\./g; |
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24
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25
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# Nome del namserver da interrogare |
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26
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0
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$self->{nserver} = $param{nserver}; |
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27
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28
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0
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my $fatal = 0; |
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29
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0
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my $msg_error =<
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30
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31
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FATAL ERROR |
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32
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=============== |
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33
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Wrong call of constructor: $class |
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34
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ERROR |
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35
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36
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37
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0
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0
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unless ( $self->{domain} ) { |
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38
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0
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$fatal = 1; |
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39
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0
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$msg_error .= "\ndomain param not found!\n"; |
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40
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} |
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41
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42
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0
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0
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unless ( $self->{nserver} ) { |
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43
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0
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$fatal = 1; |
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44
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0
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$msg_error .= "\nnserver param not found!\n"; |
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45
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} |
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46
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47
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0
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0
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if ( $fatal ) { |
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48
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0
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confess($msg_error . "\n"); |
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49
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} |
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50
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51
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52
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53
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# IP del namserver da interrogare |
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54
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# il parametro e' facoltativo. Se non viene passato |
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55
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# viene utilizzata la ricorsione per determinare |
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56
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# l'IP. Ovviamente per i nameserver appartenenti al dominio |
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57
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# sul quale staimo operando DOVREBBE essere passato l'IP. |
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58
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# Se non viene passato l'IP per quest'ultimi si utilizza |
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59
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# la ricorsione che funzionera' solo se il dominio e' gia' |
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60
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# esistente |
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61
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0
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$self->{ip} = $param{ip}; |
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62
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63
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64
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0
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0
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$self->{config} = $param{config} || new Net::DNS::Check::Config; |
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65
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66
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0
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0
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if ( defined $param{debug} ) { |
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67
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0
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$self->{debug} = $param{debug}; |
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68
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} else { |
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69
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0
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$self->{debug} = $self->{config}->debug_default(); |
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70
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} |
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71
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72
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73
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74
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# External/General Hostslist. |
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75
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0
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0
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$self->{hostslist} = $param{hostslist} || new Net::DNS::Check::HostsList( |
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76
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domain => $self->{domain}, |
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77
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debug => ($self->{debug} > 2), |
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78
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config => $self->{config} |
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79
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); |
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80
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81
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# Internal HostsList |
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82
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0
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$self->{myhostslist} = new Net::DNS::Check::HostsList( |
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83
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domain => $self->{domain}, |
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84
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debug => ($self->{debug} > 2), |
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85
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config => $self->{config} |
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86
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); |
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87
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88
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89
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90
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91
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# Array of NS or MX hostnames |
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92
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0
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$self->{result}->{NS} = []; |
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93
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0
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$self->{result}->{MX} = []; |
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94
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95
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96
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0
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bless $self, $class; |
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97
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98
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0
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0
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if ($self->{debug} > 0 ) { |
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99
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0
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print <
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100
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101
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Query for RR ANY for $self->{domain} to $self->{nserver} |
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102
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======================================================= |
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103
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DEBUG |
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104
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} |
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105
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106
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107
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108
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# Creiamo l'oggetto resolver usando il resolver di sistema |
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109
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0
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$self->{res} = Net::DNS::Resolver->new( |
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110
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recurse => 0, |
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111
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debug => ($self->{debug} > 2), |
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112
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retrans => $self->{config}->query_retrans, |
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113
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retry => $self->{config}->query_retry, |
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114
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tcp_timeout => $self->{config}->query_tcp_timeout |
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115
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); |
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116
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117
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118
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# La add_host crea un oggetto host e lo aggiunge alla lista se non esiste |
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119
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# o ritorna l'oggetto host gia' presente nella hostslist |
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120
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# $self->{host} = $self->{hostslist}->add_host( $self->{nserver}, $self->{ip} ); |
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121
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122
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123
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# if an ip doesn't exist we try to find it using add_host function |
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124
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# (that it uses hostslist object functions) |
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125
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0
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0
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unless ( @{$self->{ip}} ) { |
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0
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126
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127
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0
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0
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if ($self->{debug} > 0 ) { |
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128
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0
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my $ips = join(' ', @{$self->{ip}}); |
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0
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129
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0
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print <
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130
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Search for $self->{nserver} IP |
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131
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132
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DEBUG |
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133
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} |
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134
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135
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0
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$self->{host} = $self->_add_host( $self->{nserver} ); |
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136
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0
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$self->{ip} = $self->{host}->get_ip(); |
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137
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138
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} |
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139
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140
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# We found an IP address to query so we make query |
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141
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# .... otherwise we have an error |
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142
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0
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0
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if ( @{$self->{ip}} ) { |
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0
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143
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# $self->{type} = $type; |
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144
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145
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0
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0
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if ($self->{debug} > 0 ) { |
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146
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0
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my $ips = join(' ', @{$self->{ip}}); |
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0
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147
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0
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print <
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148
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$self->{nserver} IP : $ips |
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149
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DEBUG |
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150
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} |
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151
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152
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# We set resolver to the ip found |
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153
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0
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$self->{res}->nameservers(@{ $self->{ip} }); |
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0
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154
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155
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0
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0
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if ($self->{debug} > 2) { |
|
156
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0
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print "\n\n"; |
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157
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0
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$self->{res}->print; |
|
158
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} |
|
159
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160
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# Query of type ANY for $self->{domain} to $self->{ip} |
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161
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0
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$self->_queryANY(); |
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162
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163
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} else { |
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164
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165
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0
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$self->{error} = 'NOIP'; |
|
166
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167
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0
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0
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if ($self->{debug} > 0 ) { |
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168
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0
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my $ips = join(' ', @{$self->{ip}}); |
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0
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169
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0
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print <
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170
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$self->{nserver} IP : Not Found |
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171
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DEBUG |
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172
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} |
|
173
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} |
|
174
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175
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0
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return $self; |
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176
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} |
|
177
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178
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179
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sub _queryANY() { |
|
180
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0
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0
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my $self = shift; |
|
181
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182
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# Creazione query per il dominio |
|
183
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0
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my $packet = $self->{res}->send($self->{domain},'ANY'); |
|
184
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185
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0
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0
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if ($packet) { |
|
186
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0
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$self->{result}->{header} = $packet->header; |
|
187
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|
188
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0
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0
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|
if ($self->{debug} > 0 ) { |
|
189
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0
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print <
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|
190
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|
Getting query answer |
|
191
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192
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DEBUG |
|
193
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|
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} |
|
194
|
|
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|
195
|
0
|
0
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|
if ($self->{debug} > 1 ) { |
|
196
|
0
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|
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|
|
my $result = $packet->string; |
|
197
|
0
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|
print <
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|
198
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|
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|
|
$result |
|
199
|
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|
DEBUG |
|
200
|
|
|
|
|
|
|
} |
|
201
|
|
|
|
|
|
|
|
|
202
|
|
|
|
|
|
|
|
|
203
|
0
|
0
|
0
|
|
|
|
if ( $self->header_aa() && scalar $packet->answer() ) { |
|
204
|
0
|
|
|
|
|
|
foreach my $rr ( $packet->answer ) { |
|
205
|
|
|
|
|
|
|
|
|
206
|
0
|
0
|
|
|
|
|
if ($rr->type eq 'SOA') { |
|
207
|
0
|
|
|
|
|
|
$self->{result}->{SOA} = $rr; |
|
208
|
0
|
|
|
|
|
|
next; |
|
209
|
|
|
|
|
|
|
} |
|
210
|
|
|
|
|
|
|
|
|
211
|
0
|
0
|
|
|
|
|
if ($rr->type eq 'NS') { |
|
212
|
0
|
|
|
|
|
|
push (@{$self->{result}->{NS}}, lc($rr->{nsdname})); |
|
|
0
|
|
|
|
|
|
|
|
213
|
0
|
|
|
|
|
|
$self->_add_host( lc($rr->{nsdname}) ); |
|
214
|
0
|
|
|
|
|
|
next; |
|
215
|
|
|
|
|
|
|
} |
|
216
|
|
|
|
|
|
|
|
|
217
|
0
|
0
|
|
|
|
|
if ($rr->type eq 'MX') { |
|
218
|
0
|
|
|
|
|
|
push (@{$self->{result}->{MX}}, lc($rr->{exchange})); |
|
|
0
|
|
|
|
|
|
|
|
219
|
0
|
|
|
|
|
|
$self->_add_host( lc($rr->{exchange}) ); |
|
220
|
0
|
|
|
|
|
|
next; |
|
221
|
|
|
|
|
|
|
} |
|
222
|
|
|
|
|
|
|
} |
|
223
|
|
|
|
|
|
|
} else { |
|
224
|
0
|
|
|
|
|
|
$self->{error} = 'NOAUTH'; |
|
225
|
|
|
|
|
|
|
} |
|
226
|
|
|
|
|
|
|
} else { |
|
227
|
|
|
|
|
|
|
|
|
228
|
|
|
|
|
|
|
# Query Error... no answer (time out) |
|
229
|
0
|
|
|
|
|
|
$self->{error} = 'NOANSWER'; |
|
230
|
|
|
|
|
|
|
|
|
231
|
0
|
0
|
|
|
|
|
if ($self->{debug} > 0 ) { |
|
232
|
0
|
|
|
|
|
|
my $qerror = $self->{res}->errorstring; |
|
233
|
0
|
|
|
|
|
|
print <
|
|
234
|
|
|
|
|
|
|
Query Error: $qerror |
|
235
|
|
|
|
|
|
|
DEBUG |
|
236
|
|
|
|
|
|
|
} |
|
237
|
|
|
|
|
|
|
|
|
238
|
|
|
|
|
|
|
} |
|
239
|
|
|
|
|
|
|
} |
|
240
|
|
|
|
|
|
|
|
|
241
|
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
|
|
243
|
|
|
|
|
|
|
sub _add_host() { |
|
244
|
0
|
|
|
0
|
|
|
my $self = shift; |
|
245
|
0
|
|
|
|
|
|
my ($hostname) = shift; |
|
246
|
|
|
|
|
|
|
|
|
247
|
0
|
0
|
|
|
|
|
unless ($hostname) { |
|
248
|
0
|
|
|
|
|
|
confess("hostname parm not found!\n"); |
|
249
|
|
|
|
|
|
|
} |
|
250
|
|
|
|
|
|
|
|
|
251
|
0
|
|
|
|
|
|
my ($host, @temp); |
|
252
|
|
|
|
|
|
|
|
|
253
|
0
|
|
|
|
|
|
@temp = split('\.', $self->{domain}); |
|
254
|
0
|
|
|
|
|
|
my $domcount = scalar @temp; |
|
255
|
|
|
|
|
|
|
|
|
256
|
0
|
|
|
|
|
|
@temp = split('\.', $hostname); |
|
257
|
0
|
|
|
|
|
|
my $hostcount = (scalar @temp)-1; |
|
258
|
|
|
|
|
|
|
|
|
259
|
|
|
|
|
|
|
|
|
260
|
|
|
|
|
|
|
# Questo e' da rivedere. |
|
261
|
0
|
0
|
0
|
|
|
|
if ( ($hostname eq $self->{domain}) || $hostname =~ /.*$self->{qdomain}$/ && $domcount == $hostcount ) { |
|
|
|
|
0
|
|
|
|
|
|
262
|
|
|
|
|
|
|
# Se l'hostname fa parte del dominio lo aggiungiamo alla hostslist |
|
263
|
|
|
|
|
|
|
# locale e usiamo per la risluzione l'ip del namserver |
|
264
|
|
|
|
|
|
|
# con cui abbiamo creato l'oggetto NSQuery |
|
265
|
|
|
|
|
|
|
#print "inside "; |
|
266
|
0
|
|
|
|
|
|
$host = $self->{myhostslist}->add_host( hostname => $hostname, ip => $self->{ip} ); |
|
267
|
|
|
|
|
|
|
} else { |
|
268
|
|
|
|
|
|
|
# Se l'hostname non fa parte del dominio lo aggiungiamo alla |
|
269
|
|
|
|
|
|
|
# hostslist globale |
|
270
|
|
|
|
|
|
|
#print "outside "; |
|
271
|
0
|
|
|
|
|
|
$host = $self->{hostslist}->add_host( hostname => $hostname ); |
|
272
|
|
|
|
|
|
|
} |
|
273
|
0
|
|
|
|
|
|
return $host; |
|
274
|
|
|
|
|
|
|
} |
|
275
|
|
|
|
|
|
|
|
|
276
|
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
|
|
278
|
|
|
|
|
|
|
# Riporta 1 se le risposte del dns sono autoritativo |
|
279
|
|
|
|
|
|
|
# Riporta 0 se la risposta non e' autoritativa |
|
280
|
|
|
|
|
|
|
# Riporta -1 se non c'e' nessun header |
|
281
|
|
|
|
|
|
|
sub header_aa() { |
|
282
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
283
|
|
|
|
|
|
|
|
|
284
|
0
|
0
|
|
|
|
|
return undef if (! defined $self->{result}->{header}); |
|
285
|
|
|
|
|
|
|
|
|
286
|
0
|
|
|
|
|
|
return $self->{result}->{header}->aa(); |
|
287
|
|
|
|
|
|
|
} |
|
288
|
|
|
|
|
|
|
|
|
289
|
|
|
|
|
|
|
|
|
290
|
|
|
|
|
|
|
# Riporta l'oggetto Net::DNS::Header oppure false se non c'e' l'oggetto |
|
291
|
|
|
|
|
|
|
sub header() { |
|
292
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
293
|
|
|
|
|
|
|
|
|
294
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{header}); |
|
295
|
|
|
|
|
|
|
|
|
296
|
0
|
|
|
|
|
|
return $self->{result}->{header}; |
|
297
|
|
|
|
|
|
|
} |
|
298
|
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
# Riporta un array vuoto se non ci sono record NS altrimenti riporta |
|
301
|
|
|
|
|
|
|
# l'array contenente la lista dei DNS autoritativi |
|
302
|
|
|
|
|
|
|
sub ns_list() { |
|
303
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
304
|
|
|
|
|
|
|
|
|
305
|
0
|
0
|
|
|
|
|
return () unless defined $self->{result}->{NS}; |
|
306
|
|
|
|
|
|
|
|
|
307
|
0
|
|
|
|
|
|
return @{ $self->{result}->{NS} }; |
|
|
0
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
} |
|
309
|
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
# Riporta un array vuoto se non ci sono record MX altrimenti |
|
312
|
|
|
|
|
|
|
# Altrimenti riporta l'array dei contenente la lista degli |
|
313
|
|
|
|
|
|
|
# exchange server |
|
314
|
|
|
|
|
|
|
sub mx_list() { |
|
315
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
316
|
|
|
|
|
|
|
|
|
317
|
0
|
0
|
|
|
|
|
return () unless defined $self->{result}->{MX}; |
|
318
|
|
|
|
|
|
|
|
|
319
|
0
|
|
|
|
|
|
return @{ $self->{result}->{MX} }; |
|
|
0
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
} |
|
321
|
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
# Riporta undef se non esiste un'oggetto SOA o non esiste un master altrimenti riporta il master nameserver che appare nel SOA |
|
323
|
|
|
|
|
|
|
sub soa_mname() { |
|
324
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
325
|
|
|
|
|
|
|
|
|
326
|
0
|
0
|
|
|
|
|
return if (! defined $self->{result}->{SOA} ); |
|
327
|
|
|
|
|
|
|
|
|
328
|
0
|
|
|
|
|
|
return lc($self->{result}->{SOA}->mname()); |
|
329
|
|
|
|
|
|
|
} |
|
330
|
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
# Riporta undef se non esiste un'oggetto SOA altrimenti |
|
332
|
|
|
|
|
|
|
# Riporta il serial che appare nel SOA |
|
333
|
|
|
|
|
|
|
sub soa_serial() { |
|
334
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
335
|
|
|
|
|
|
|
|
|
336
|
0
|
0
|
|
|
|
|
return if (! defined $self->{result}->{SOA} ); |
|
337
|
|
|
|
|
|
|
|
|
338
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->serial(); |
|
339
|
|
|
|
|
|
|
} |
|
340
|
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
|
|
342
|
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
# Riporta 0 se non esiste un'oggetto SOA o non esiste un refresh |
|
344
|
|
|
|
|
|
|
# Riporta il refresh che che appare nel SOA |
|
345
|
|
|
|
|
|
|
sub soa_refresh() { |
|
346
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
347
|
|
|
|
|
|
|
|
|
348
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{SOA} ); |
|
349
|
|
|
|
|
|
|
|
|
350
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->refresh(); |
|
351
|
|
|
|
|
|
|
} |
|
352
|
|
|
|
|
|
|
|
|
353
|
|
|
|
|
|
|
# Riporta 0 se non esiste un'oggetto SOA o non esiste un retry |
|
354
|
|
|
|
|
|
|
# Riporta il retry che che appare nel SOA |
|
355
|
|
|
|
|
|
|
sub soa_retry() { |
|
356
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
357
|
|
|
|
|
|
|
|
|
358
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{SOA} ); |
|
359
|
|
|
|
|
|
|
|
|
360
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->retry(); |
|
361
|
|
|
|
|
|
|
} |
|
362
|
|
|
|
|
|
|
|
|
363
|
|
|
|
|
|
|
# Riporta 0 se non esiste un'oggetto SOA o non esiste un expire |
|
364
|
|
|
|
|
|
|
# Riporta il expire che che appare nel SOA |
|
365
|
|
|
|
|
|
|
sub soa_expire() { |
|
366
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
367
|
|
|
|
|
|
|
|
|
368
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{SOA} ); |
|
369
|
|
|
|
|
|
|
|
|
370
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->expire(); |
|
371
|
|
|
|
|
|
|
} |
|
372
|
|
|
|
|
|
|
|
|
373
|
|
|
|
|
|
|
# Riporta 0 se non esiste un'oggetto SOA o non esiste un minimum |
|
374
|
|
|
|
|
|
|
# Riporta il minimum che che appare nel SOA |
|
375
|
|
|
|
|
|
|
sub soa_minimum() { |
|
376
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
377
|
|
|
|
|
|
|
|
|
378
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{SOA} ); |
|
379
|
|
|
|
|
|
|
|
|
380
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->minimum(); |
|
381
|
|
|
|
|
|
|
} |
|
382
|
|
|
|
|
|
|
|
|
383
|
|
|
|
|
|
|
# Riporta 0 se non esiste un'oggetto SOA o non esiste un minimum |
|
384
|
|
|
|
|
|
|
# Riporta il minimum che che appare nel SOA |
|
385
|
|
|
|
|
|
|
sub soa_mail() { |
|
386
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
387
|
|
|
|
|
|
|
|
|
388
|
0
|
0
|
|
|
|
|
return 0 if (! defined $self->{result}->{SOA} ); |
|
389
|
|
|
|
|
|
|
|
|
390
|
0
|
|
|
|
|
|
return $self->{result}->{SOA}->rname(); |
|
391
|
|
|
|
|
|
|
} |
|
392
|
|
|
|
|
|
|
|
|
393
|
|
|
|
|
|
|
# Riporta il nome del nameserver che stiamo interrogando |
|
394
|
|
|
|
|
|
|
sub ns_name() { |
|
395
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
396
|
|
|
|
|
|
|
|
|
397
|
0
|
|
|
|
|
|
return $self->{nserver}; |
|
398
|
|
|
|
|
|
|
} |
|
399
|
|
|
|
|
|
|
|
|
400
|
|
|
|
|
|
|
|
|
401
|
|
|
|
|
|
|
sub error() { |
|
402
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
403
|
|
|
|
|
|
|
|
|
404
|
0
|
|
|
|
|
|
return $self->{error}; |
|
405
|
|
|
|
|
|
|
} |
|
406
|
|
|
|
|
|
|
|
|
407
|
|
|
|
|
|
|
sub hostslist() { |
|
408
|
0
|
|
|
0
|
0
|
|
my $self = shift; |
|
409
|
|
|
|
|
|
|
|
|
410
|
0
|
|
|
|
|
|
return $self->{myhostslist}; |
|
411
|
|
|
|
|
|
|
} |
|
412
|
|
|
|
|
|
|
|
|
413
|
|
|
|
|
|
|
1; |
|
414
|
|
|
|
|
|
|
|
|
415
|
|
|
|
|
|
|
__END__ |