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Diff for /trango/Net-Telnet-Trango/lib/Net/Telnet/Trango.pm between version 1.10 and 1.31

version 1.10, 2006/07/31 23:16:52 version 1.31, 2007/02/02 18:54:22
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 package Net::Telnet::Trango;  package Net::Telnet::Trango;
 # $RedRiver: Trango.pm,v 1.9 2006/07/14 01:17:29 andrew Exp $  # $RedRiver: Trango.pm,v 1.30 2007/02/02 17:51:52 andrew Exp $
 use strict;  use strict;
 use warnings;  use warnings;
 use base 'Net::Telnet';  use base 'Net::Telnet';
   
 =pod  =pod
   
 =head1 NAME  =head1 NAME
   
 Net::Telnet::Trango - Perl extension for accessing the Trango telnet interface  Net::Telnet::Trango
   - Perl extension for accessing the Trango telnet interface
 =head1 SYNOPSIS  
   =head1 SYNOPSIS
   use Net::Telnet::Trango;  
   my $t = new Net::Telnet::Trango ( Timeout => 5 );    use Net::Telnet::Trango;
       my $t = new Net::Telnet::Trango ( Timeout => 5 );
   $t->open( Host => $fox ) or die "Error connecting: $!";  
     $t->open( Host => $fox ) or die "Error connecting: $!";
   $t->login('password') or die "Couldn't log in: $!";  
       $t->login('password') or die "Couldn't log in: $!";
   # Do whatever  
       # Do whatever
   $t->exit;  
   $t->close;    $t->exit;
     $t->close;
 =head1 DESCRIPTION  
   =head1 DESCRIPTION
 Perl access to the telnet interface on Trango Foxes, SUs and APs.  
   Perl access to the telnet interface on Trango Foxes, SUs and APs.
 Another handy feature is that it will parse the output from certain commands that is in the format "[key1] value1 [key2] value2" and put those in a hashref that is returned.  This makes using the output from things like sysinfo very easy to do.  
   Another handy feature is that it will parse the output from certain
 =head2 EXPORT  commands that is in the format "[key1] value1 [key2] value2" and put
   those in a hashref that is returned.  This makes using the output from
 None  things like sysinfo very easy to do.
   
 =cut  =head2 EXPORT
   
 our $VERSION = '0.01';  None
   
 my %PRIVATE = (  =head1 METHODS
   is_connected => 0,  
   logged_in => 0,  =over
 );  
   =cut
 =pod  
   our $VERSION = '0.01';
 =item new  
   my %PRIVATE = (
 Same as new from L<Net::Telnet> but has defaults for the trango 'Prompt'    is_connected => 0,
     logged_in => 0,
 It also takes an optional parameter 'Decode'.  If not defined it  );
 defaults to 1, if it is set to 0, it will not decode the output and  
 instead return an array of the lines that were returned from the  =pod
 command.  
   =item B<new>
 =cut  
   - Creates a new Net::Telnet::Trango object.
 sub new  
 {          new([Options from Net::Telnet,]
   my $class = shift;              [Decode => 0,]);
   
   my %args;  Same as new from L<Net::Telnet> but sets the default Trango Prompt:
   if (@_ == 1) {  '/#> *$/'
     $args{'Host'} = shift;  
   } else {  It also takes an optional parameter 'Decode'.  If not defined it
     %args = @_;  defaults to 1, if it is set to 0, it will not decode the output and
   }  instead return a reference to an array of the lines that were returned
   from the command.
   $args{'Prompt'}  ||= '/#> *$/';  
   =cut
   foreach my $key (keys %args) {  
     $PRIVATE{$key} = $args{$key};  sub new
   }  {
   $PRIVATE{'Decode'} = 1 unless defined $PRIVATE{'Decode'};    my $class = shift;
   delete $args{'Decode'};  
     my %args;
   my $self = $class->SUPER::new(%args);    if (@_ == 1) {
   bless $self if ref $self;      $args{'Host'} = shift;
     } else {
   return $self;      %args = @_;
 }    }
   
 #  _password <new password> <new password>    $args{'Prompt'}  ||= '/#> *$/';
 #  ? [command]  
 #  apsearch <secs> <ch#> <h|v> [<ch#> <h|v>]...    foreach my $key (keys %args) {
 #  arp -bcast <on|off>      $PRIVATE{$key} = $args{$key};
 #  bcastscant <all|suid> <ch#> <h|v> [<ch#> <h|v> ...    }
 #  bye    $PRIVATE{'Decode'} = 1 unless defined $PRIVATE{'Decode'};
 #  cf2cf ap [default|<size>]    delete $args{'Decode'};
 #  date  
 #  date <month> <day> <year>    my $self = $class->SUPER::new(%args);
 #  freq scantable    bless $self if ref $self;
 #  freq channeltable  
 #  freq writescan [<ch#> <h|v>]    return $self;
 #  freq writechannel [<ch#> <freq>] ...  }
 #  freq <ch #> <h|v>  
 #  help [command]  #  _password <new password> <new password>
 #  heater [<on temp> <off temp>]  #  ? [command]
 #  ipconfig [<new ip> <new subnet mask> <new gateway>]  #  apsearch <secs> <ch#> <h|v> [<ch#> <h|v>]...
 #  log [<# of entries, 1..179>]  #  arp -bcast <on|off>
 #  log <sum> <# of entries, 1..179>  #  bcastscant <all|suid> <ch#> <h|v> [<ch#> <h|v> ...
 #  logout  #  bye
 #  opmode [ap [y]]  #  cf2cf ap [default|<size>]
 #  password  #  date
 #  ping <ip addr>  #  date <month> <day> <year>
 #  polar <h|v>  #  freq scantable
 #  power <setism|setunii> <max|min|<dBm>>  #  freq channeltable
 #  reboot  #  freq writescan [<ch#> <h|v>]
 #  restart  #  freq writechannel [<ch#> <freq>] ...
 #  remarks [<str>]  #  freq <ch #> <h|v>
 #  rfrxthreshold [<ism|unii> <-90|-85|-80|-75|-70|-65>]  #  help [command]
 #  rfrxth [<ism|unii> <-90|-85|-80|-75|-70|-65>]  #  heater [<on temp> <off temp>]
 #  sysinfo  #  ipconfig [<new ip> <new subnet mask> <new gateway>]
 #  set suid <id>  #  log [<# of entries, 1..179>]
 #  set apid <id>  #  log <sum> <# of entries, 1..179>
 #  set baseid <id>  #  logout
 #  set defaultopmode [<ap|su> <min,0..10>]  #  opmode [ap [y]]
 #  set defaultopmode off  #  password
 #  set snmpcomm [<read | write | trap (id or setall)> <str>]  #  ping <ip addr>
 #  set mir [on|off]  #  polar <h|v>
 #  set mir threshold <kbps>  #  power <setism|setunii> <max|min|<dBm>>
 #  set rssitarget [<ism|unii> <dBm>]  #  reboot
 #  set serviceradius [<ism | unii> <miles>]  #  restart
 #  ssrssi <ch #> <h|v>  #  remarks [<str>]
 #  su [<suid>|all]  #  rfrxthreshold [<ism|unii> <-90|-85|-80|-75|-70|-65>]
 #  su changechannel <all|suid> <ch#> <h|v>  #  rfrxth [<ism|unii> <-90|-85|-80|-75|-70|-65>]
 #  su ipconfig <suid> <new ip> <new subnet> <new gateway>  #  sysinfo
 #  su [live|poweroff|priority]  #  set suid <id>
 #  su <ping|info|status> <suid>  #  set apid <id>
 #  su powerleveling <all|suid>  #  set baseid <id>
 #  su reboot <all|suid>  #  set defaultopmode [<ap|su> <min,0..10>]
 #  su restart <all|suid>  #  set defaultopmode off
 #  su testrflink <all|suid> [r]  #  set snmpcomm [<read | write | trap (id or setall)> <str>]
 #  su testrflink <setlen> [64..1600]  #  set mir [on|off]
 #  su testrflink <aptx> [20..100]  #  set mir threshold <kbps>
 #  su sw <suid|all> <sw #> <on|off>  #  set rssitarget [<ism|unii> <dBm>]
 #  sudb [dload | view]  #  set serviceradius [<ism | unii> <miles>]
 #  sudb add <suid> pr <cir,kbps> <mir,kbps> <device id,hex>  #  ssrssi <ch #> <h|v>
 #  sudb add <suid> reg <cir,kbps> <mir,kbps> <device id,hex>  #  su [<suid>|all]
 #  sudb delete <all|<suid>>  #  su changechannel <all|suid> <ch#> <h|v>
 #  sudb modify <suid> <cir|mir> <kbps>  #  su ipconfig <suid> <new ip> <new subnet> <new gateway>
 #  sudb modify <suid> <su2su> <group id,hex>  #  su [live|poweroff|priority]
 #  sudb view  #  su <ping|info|status> <suid>
 #  sulog [lastmins | sampleperiod <1..60>]  #  su powerleveling <all|suid>
 #  sulog [<# of entry,1..18>]  #  su reboot <all|suid>
 #  survey <ism|unii> <time, sec> <h|v>  #  su restart <all|suid>
 #  sw [<sw #> <on|off>]  #  su testrflink <all|suid> [r]
 #  temp  #  su testrflink <setlen> [64..1600]
 #  tftpd [on|off]  #  su testrflink <aptx> [20..100]
 #  time  #  su sw <suid|all> <sw #> <on|off>
 #  time <hour> <min> <sec>  #  sudb [dload | view]
 #  save <mainimage|fpgaimage> <current chksum> <new chksum>  #  sudb add <suid> pr <cir,kbps> <mir,kbps> <device id,hex>
 #  save <systemsetting|sudb>  #  sudb add <suid> reg <cir,kbps> <mir,kbps> <device id,hex>
 #  updateflash <mainimage|fpgaimage> <current chksum> <new chksum>  #  sudb delete <all|<suid>>
 #  updateflash <systemsetting|sudb>  #  sudb modify <suid> <cir|mir> <kbps>
   #  sudb modify <suid> <su2su> <group id,hex>
 =pod  #  sudb view
   #  sulog [lastmins | sampleperiod <1..60>]
 =head1 METHODS  #  sulog [<# of entry,1..18>]
   #  survey <ism|unii> <time, sec> <h|v>
 =head2 ACCESSORS  #  sw [<sw #> <on|off>]
   #  temp
 =over  #  tftpd [on|off]
   #  time
 =item Host  #  time <hour> <min> <sec>
   #  save <mainimage|fpgaimage> <current chksum> <new chksum>
 returns the name of the host that you are accessing  #  save <systemsetting|sudb>
   #  updateflash <mainimage|fpgaimage> <current chksum> <new chksum>
 =item firmware_version  #  updateflash <systemsetting|sudb>
   
 returns the firmware version on the trango if available otherwise undef.    =pod
 Available after a successful open()  
 This is usually only set internally  =back
   
 =item host_type  =head2 ACCESSORS
   
 returns the type of host from the login banner for example M5830S or M5300S.    These are usually only set internally.
 Available after a successful open()  
 This is usually only set internally  =over
   
 =item is_connected  =item B<firmware_version>
   
 returns 1 after a successful open() otherwise undef  - returns the firmware version
 This is usually only set internally  
   Returns the firmware version if available, otherwise undef.
 =item logged_in  
   It should be available after a successful open().
 returns 1 after a successful login() 0 if it failed and undef if  
 login() was never called  =item B<host_type>
 This is usually only set internally  
   - return the type of host you are connected to.
 =item login_banner  
   returns the type of host from the login banner for example M5830S or M5300S.
 returns the banner that is displayed when first connected at login.  Only set after a successful open()  
   Should be available after a successful open().
 This is usually only set internally  
   =item B<is_connected>
 =item last_lines  
   - Status of the connection to host.
 returns the output from the last cmd() that was run as an array ref  
 This is usually only set internally  returns 1 when connected, undef otherwise.
   
 =back  =item B<logged_in>
   
 =head2 ALIASES  - Status of being logged in to the host.
   
 =over  returns 1 after a successful login(), 0 if it failed and undef if
   login() was never called.
 =item bye  
   =item B<login_banner>
 alias of exit()  
   - The banner when first connecting to the host.
 =item restart  
   returns the banner that is displayed when first connected at login.
 alias of reboot()  Only set after a successful open().
   
 =back  =item B<last_lines>
   
 =head2 COMMANDS  - The last lines of output from the last cmd().
   
 Most of these are just shortcuts to C<cmd(String =E<gt> METHOD)>, as such they accept the same options as C<cmd()>.  Specifically they take a named paramater "args", for example:  returns, as an array ref, the output from the last cmd() that was run.
 C<tftpd(args =E<gt> 'on')> would enable tftpd  
   =item B<last_error>
 =over  
   - A text output of the last error that was encountered.
 =item tftpd  
   returns the last error reported.  Probably contains the last entry in
 Returns a hash ref of the decoded output from the command.  last_lines.
   
 Also see enable_tftpd() and disable_tftpd() as those check for correct output  =back
   
 =item ver  =head2 ALIASES
   
 Returns a hash ref of the decoded output from the command.  =over
   
 =item sysinfo  =item B<bye>
   
 Returns a hash ref of the decoded output from the command.  - alias of L<exit()>.
   
 =item exit  =item B<restart>
   
 exits the command session with the trango and closes the connection  - alias of L<reboot()>.
   
 =item reboot  =back
   
 reboots the trango and closes the connection  =head2 COMMANDS
   
 =item sulog  Most of these are just shortcuts to C<cmd(String =E<gt> METHOD)>,
   as such they accept the same options as C<cmd()>.
 returns an array ref of hashes containing each log line.  Specifically they take a named paramater "args", for example:
   C<tftpd(args =E<gt> 'on')> would enable tftpd
 =item save_sudb  
   =over
 returns true on success, undef on failure  
   =item B<tftpd>
 =item syslog  
   - Returns a hash ref of the decoded output from the
 returns the output from the syslog command  command.
   
 =item pipe  Also see enable_tftpd() and disable_tftpd() as those check that it was
   successfully changed.
 returns the output from the pipe command  
   =item B<ver>
 =item maclist  
   - Returns a hash ref of the decoded output from the
 returns the output from the maclist command  command.
   
 =item maclist_reset  =item B<sysinfo>
   
 resets the maclist.  No useful output.  - Returns a hash ref of the decoded output from the
   command.
 =item eth_list  
   =item B<exit>
 returns the output from the eth list command  
   - exits the command session with the Trango and closes
 =cut  the connection
   
   =item B<reboot>
 my $success = 'Success.';  
 my %COMMANDS = (  - reboots the Trango and closes the connection
   tftpd       => { decode => 'all',   expect => $success },  
   ver         => { decode => 'all' },  =item B<remarks>
   sysinfo     => { decode => 'all',   expect => $success },  
   updateflash => { decode => 'all',   expect => $success },  - Set or retrieve the remarks.
   sulog       => { decode => 'sulog', expect => $success },  
   'exit'      => { no_prompt => 1, cmd_disconnects => 1 },  Takes an optional argument, which sets the remarks.
   reboot      => { no_prompt => 1, cmd_disconnects => 1 },  If there is no argument, returns the current remarks.
   save_sudb   => { String => 'save sudb', expect => $success },  
   syslog      => { expect => $success },    my $old_remarks = $t->remarks();
   'pipe'      => { }, # XXX needs a special decode    $t->remarks($new_remarks);
   maclist     => { }, # XXX needs a special decode and a special expect  
   maclist_reset => { String => 'maclist reset', expect => 'done' },  =item B<sulog>
   eth_link    => { String => 'eth link', expect => $success },  
   # eth r, w and reset???  - returns an array ref of hashes containing each log
   #su password???  line.
   #_bootloader  
   #temp  =item B<save_sudb>
   #heater  
 );  - returns true on success, undef on failure
   
 my %ALIASES = (  =item B<syslog>
   bye     => 'exit',  
   restart => 'reboot',  - returns the output from the syslog command
 );  
   =item B<pipe>
 my %ACCESS = map { $_ => 1 } qw(  
   firmware_version  - returns the output from the pipe command
   host_type  
   Host  =item B<maclist>
   is_connected  
   logged_in  -  returns the output from the maclist command
   login_banner  
   Timeout  =item B<maclist_reset>
   last_lines  
   last_vals  - resets the maclist.
 );  
   No useful output.
 sub AUTOLOAD  
 {  =item B<eth_list>
   my $self = shift;  
   - returns the output from the eth list command
   my ($method) = (our $AUTOLOAD) =~ /^.*::(\w+)$/  
     or die "Weird: $AUTOLOAD";  =item B<su_info>
   
   if (exists $ALIASES{$method}) {  - returns information about the SU.
     $method = $ALIASES{$method};  
     return $self->$method(@_);  You need to pass in the $suid and it will return the info for that suid.
   }  
     $t->su_info($suid);
   if (exists $COMMANDS{$method}) {  
     $method = shift if (@_ == 1);  =item B<su_testrflink>
     $COMMANDS{$method}{'String'} ||= $method;  
     return $self->cmd(%{ $COMMANDS{$method} }, @_);  - tests the RF Link to an su
   }  
     $t->su_testrflink($suid|'all');
   if (exists $ACCESS{$method}) {  
     my $prev = $PRIVATE{$method};  =item B<save_ss>
     ($PRIVATE{$method}) = @_ if @_;  
     return $prev;  - saves the config.
   }  
   Returns 1 on success, undef on failure.
   $method = "SUPER::$method";  
   return $self->$method(@_);  =cut
 }  
   
 =pod  my $success = 'Success\\.';
   my %COMMANDS = (
 =item open    tftpd       => { decode => 'all',   expect => $success },
     ver         => { decode => 'all' },
 Calls Net::Telnet::open() then makes sure you get a password prompt so you are ready to login() and parses the login banner so you can get host_type() and firmware_version()    sysinfo     => { decode => 'all',   expect => $success },
     updateflash => { decode => 'all',   expect => $success },
 =cut    sulog       => { decode => 'sulog', expect => $success },
     'exit'      => { no_prompt => 1, cmd_disconnects => 1 },
 sub open    reboot      => { no_prompt => 1, cmd_disconnects => 1 },
 {    remarks     => { decode => 'all', expect => $success },
   my $self = shift;    save_sudb   => { String => 'save sudb', expect => $success },
     syslog      => { expect => $success },
   unless ( $self->SUPER::open(@_) ) {    'pipe'      => { }, # XXX needs a special decode
     #$! = "Couldn't connect to " . $self->Host . ":  $!";    maclist     => { decode => 'maclist' },
     return undef;    maclist_reset => { String => 'maclist reset', expect => 'done' },
   }    eth_link    => { String => 'eth link', expect => $success },
     su_info     => { String => 'su info', decode => 'all', expect => $success },
   ## Get to login prompt    su_testrflink => { String => 'su testrflink', decode => 'all', expect => $success },
   unless ($self->waitfor(    save_ss     => { String => 'save ss', expect => $success },
       -match => '/password: ?$/i',    opmode      => { decode => 'all',   expect => $success },
       -errmode => "return",    # eth r, w and reset???
     ) ) {    #su password???
     #$! = "problem connecting to host (" . $self->Host . "): " .    #_bootloader
     #    $self->lastline;    #temp
     return undef;    #heater
   }  );
   
   $self->parse_login_banner($self->lastline);  my %ALIASES = (
     bye     => 'exit',
   $self->is_connected(1);    restart => 'reboot',
     Host    => 'host',
   return $self->is_connected;  );
 }  
   my %ACCESS = map { $_ => 1 } qw(
 =pod    firmware_version
     host_type
 =item login    is_connected
     logged_in
 Calls open() if not already connected, then sends the password and sets logged_in() if successful    login_banner
     Timeout
 =cut    last_lines
     last_vals
 sub login    last_error
 {    Decode
   my $self = shift;  );
   
   unless ($self->is_connected) {  sub AUTOLOAD
     $self->open or return undef;  {
   }    my $self = shift;
   
   my $password = shift;    my ($method) = (our $AUTOLOAD) =~ /^.*::(\w+)$/
       or die "Weird: $AUTOLOAD";
   $self->print($password);  
   unless ($self->waitfor(    if (exists $ALIASES{$method}) {
     -match => $self->prompt,      $method = $ALIASES{$method};
     -errmode => "return",      return $self->$method(@_);
   ) ) {    }
     #$! = "login ($self->Host) failed: " . $self->lastline;  
     return undef;    if (exists $COMMANDS{$method}) {
   }      my %cmd;
       foreach my $k (keys %{ $COMMANDS{$method} }) {
   $self->logged_in(1);        $cmd{$k} = $COMMANDS{$method}{$k};
       }
   return $self->logged_in;      $cmd{'String'} ||= $method;
 }      $cmd{'args'}   .= ' ' . shift if (@_ == 1);
       return $self->cmd(%cmd, @_);
 =pod    }
   
 =item parse_login_banner    if (exists $ACCESS{$method}) {
       my $prev = $PRIVATE{$method};
 Takes a login banner (what you get when you first connect to the Trango) or reads what is already in login_banner() then parses it and sets host_type() and firmware_version() as well as login_banner()      ($PRIVATE{$method}) = @_ if @_;
       return $prev;
 =cut    }
   
 sub parse_login_banner    $method = "SUPER::$method";
 {    return $self->$method(@_);
   my $self = shift;  }
   
   if (@_) {  =pod
     $self->login_banner(@_);  
   }  =item B<open>
   
   my $banner = $self->login_banner;  - Open a connection to a Trango AP.
   
   my ($type, $ver) = $banner =~  Calls Net::Telnet::open() then makes sure you get a password prompt so
     /Welcome to Trango Broadband Wireless (\S+)[\s-]+(.+)$/i;  you are ready to login() and parses the login banner so you can get
   host_type() and firmware_version()
   $self->login_banner($banner);  
   $self->host_type($type);  =cut
   $self->firmware_version($ver);  
   sub open
   return 1;  {
 }    my $self = shift;
   
 =pod    unless ( $self->SUPER::open(@_) ) {
       $self->last_error("Couldn't connect to " . $self->host . ":  $!");
 =item su_password      return;
     }
 C<su_password('all'|suid, 'new_password')>  
     ## Get to login prompt
 =cut    unless ($self->waitfor(
         -match => '/password: ?$/i',
 sub su_password        -errmode => "return",
 {      ) ) {
   my $self     = shift;      $self->last_error("problem connecting to host (" . $self->host . "): " .
   my $su       = shift || '!';          $self->lastline);
   my $new_pass = shift || '';      return;
     }
   unless (defined $su) {  
     warn "No su passed!"    $self->parse_login_banner($self->lastline);
     #return undef;  
   }    $self->is_connected(1);
   
   unless (defined $new_pass) {    return $self->is_connected;
     warn "No new password!"    }
     #return undef;  
   }  =pod
   
   return $self->cmd(String => 'su password ' .  =item B<login>
                      $su . ' ' .  
                      $new_pass . ' ' .  - Login to the AP.
                      $new_pass,  
                      expect => $success,  Calls open() if not already connected, then sends the password and sets
                     );  logged_in() if successful
 }  
   =cut
 =pod  
   sub login
 =item sudb_view  {
     my $self = shift;
 returns a reference to an array of hashes each containing:  
     unless ($self->is_connected) {
   suid      $self->open or return;
   type    }
   cir  
   mir    my $password = shift;
   mac  
     $self->print($password);
 =cut    unless ($self->waitfor(
       -match => $self->prompt,
 sub sudb_view      -errmode => "return",
 {    ) ) {
   my $self = shift;      $self->last_error("login ($self->host) failed: " . $self->lastline);
       return;
   my @lines = $self->cmd( String => 'sudb view', expect => $success );    }
   
   return undef unless @lines;    $self->logged_in(1);
   
   unless ($PRIVATE{'Decode'}) {    return $self->logged_in;
     return @lines;  }
   }  
   =pod
   my @sus;  
   foreach (@lines) {  =item B<parse_login_banner>
     next unless $_;  
     if (/^\[(\d+)\]\s+(\d+)\s+(\d+)\s+(\d+)\s+([0-9A-Fa-f\s]+)$/) {  - Converts the login_banner to some useful
       my %s = (  variables.
         suid => $1,  
         type => $2,  Takes a login banner (what you get when you first connect to the Trango)
         cir  => $3,  or reads what is already in login_banner() then parses it and sets
         mir  => $4,  host_type() and firmware_version() as well as login_banner()
         mac  => $5,  
       );  =cut
   
           $s{'mac'} =~ s/\s//g;  sub parse_login_banner
           $s{'mac'} = uc($s{'mac'});  {
     my $self = shift;
       push @sus, \%s;  
     }    if (@_) {
   }      $self->login_banner(@_);
     }
   return \@sus;  
 }    my $banner = $self->login_banner;
   
 =pod    my ($type, $sep1, $subtype, $sep2, $ver) = $banner =~
       /Welcome to Trango Broadband Wireless (\S+)([\s-]+)(\S+)([\s-]+)(.+)$/i;
 =item sudb_add  
     $type .= $sep1 . $subtype;
 Takes the following paramaters    $ver = $subtype . $sep2 . $ver;
   
         suid : numeric,    $self->login_banner($banner);
         type : (reg|pr)    $self->host_type($type);
         cir  : numeric,    $self->firmware_version($ver);
         mir  : numeric,  
         mac  : Almost any format, it will be reformatted,    return 1;
   }
 and returns true on success or undef otherwise.  
   =pod
 You should save_sudb() after calling this, or your changes  will be lost  
 when the AP is rebooted.  =item B<su_password>
   
 =cut  - Set the password on SUs connected to the AP.
   
 sub sudb_add  su_password('new_password'[, 'suid']) If no suid is specified,
 {  the default is "all".
         my $self = shift;  
         my $suid = shift;    $t->su_password('good_pass', 5);
         my $type = shift;  
         my $cir  = shift;  =cut
         my $mir  = shift;  
         my $mac  = shift;  sub su_password
   {
         if ($suid =~ /\D/) {    my $self     = shift;
                 return undef;    my $new_pass = shift || '';
         }    my $su       = shift || 'all';
   
         unless (lc($type) eq 'reg' || lc($type) eq 'pr') {    unless (defined $new_pass) {
                 warn "Invalid type '$type'!";      $self->last_error("No new password");
                 return undef;      #return;
         }    }
   
         if ($cir =~ /\D/) {    return $self->cmd(String => 'su password ' .
                 warn "Invalid CIR '$cir'!";                       $su . ' ' .
                 return undef;                       $new_pass . ' ' .
         }                       $new_pass,
                        expect => $success,
         if ($mir =~ /\D/) {                      );
                 warn "Invalid MIR '$mir'!";  }
                 return undef;  
         }  =pod
   
         my $new_mac = $mac;  =item B<su_ipconfig>
         $new_mac =~ s/[^0-9A-Fa-f]//;  
         unless (length $new_mac == 12) {  - Change IP configuration on SUs connected to
                 warn "Invalid MAC '$mac'!";  the AP.
                 return undef;  
         }  su_ipconfig( 'suid', 'new_ip', 'new_subnet', 'new_gateway' )
         $new_mac = join ' ', $new_mac =~ /../g;  
     $t->su_ipconfig( 5, '10.0.1.5', '255.255.255.0', '10.0.1.1' );
         my $string = 'sudb add ' .  
                 $suid . ' ' .  =cut
                 $type . ' ' .  
                 $cir  . ' ' .  sub su_ipconfig
                 $mir  . ' ' .  {
                 $new_mac;          my $self        = shift;
   
           my $suid        = shift;
         return $self->cmd( String => $string, expect => $success );          my $new_ip      = shift;
 }          my $new_subnet  = shift;
           my $new_gateway = shift;
 =pod  
           if ($suid =~ /\D/) {
 =item sudb_delete                  $self->last_error("Invalid suid '$suid'");
                   return;
 Takes either 'all' or the  suid of the su to delete          }
 and returns true on success or undef otherwise.          unless ($new_ip) {
                   $self->last_error("no new_ip passed");
 You should save_sudb() after calling this, or your changes  will be lost                  return;
 when the AP is rebooted.          }
           unless ($new_subnet) {
 =cut                  $self->last_error("no new_subnet passed");
                   return;
 sub sudb_delete          }
 {          unless ($new_gateway) {
         my $self = shift;                  $self->last_error("no new_gateway passed");
         my $suid = shift;                  return;
           }
         if (lc($suid) ne 'all' || $suid =~ /\D/) {  
                 return undef;          # su ipconfig <suid> <new ip> <new subnet> <new gateway>
         }          return $self->cmd(String => 'su ipconfig ' .
                        $suid       . ' ' .
         return $self->cmd( String => 'sudb delete ' . $suid, expect => $success );                       $new_ip     . ' ' .
 }                       $new_subnet . ' ' .
                        $new_gateway,
 =pod                       expect => $success,
                       );
 =item sudb_modify  }
   
 Takes either the  suid of the su to delete  =pod
 as well as what you are changing, either "cir, mir or su2su"  
 and returns true on success or undef otherwise.  =item B<sudb_view>
   
 cir and mir also take a value to set the cir/mir to.  - Returns the output from the sudb view command
   
 su2su takes a group id parameter that is in hex.  returns a reference to an array of hashes each containing these keys
   'suid', 'type', 'cir', 'mir' and 'mac'
 You should save_sudb() after calling this, or your changes  will be lost  
 when the AP is rebooted.  =cut
   
 =cut  sub sudb_view
   {
 sub sudb_modify    my $self = shift;
 {  
         my $self  = shift;    my $lines = $self->cmd( String => 'sudb view', expect => $success ) || [];
         my $suid  = shift;  
         my $opt   = shift;    return unless @{ $lines };
         my $value = shift;  
     unless ($PRIVATE{'Decode'}) {
         if ($suid =~ /\D/) {      return $lines;
                 return undef;    }
         }  
     my @sus;
         if (lc($opt) eq 'cir' or lc($opt) eq 'mir') {    foreach (@{ $lines }) {
                 if ($value =~ /\D/) {      next unless $_;
                         return undef;      if (/^\[(\d+)\]\s+(\d+)\s+(\d+)\s+(\d+)\s+([0-9A-Fa-f\s]+)$/) {
                 }        my %s = (
         } elsif (lc($opt) eq 'su2su') {          suid => $1,
                 if ($value =~ /[^0-9A-Za-f]/) {          type => $2,
                         return undef;          cir  => $3,
                 }          mir  => $4,
         } else {          mac  => $5,
                 return undef;        );
         }  
             $s{'mac'} =~ s/\s//g;
         my $string = 'sudb modify ' . $suid . ' ' . $opt . ' ' . $value;            $s{'mac'} = uc($s{'mac'});
   
         return $self->cmd( String => $string, expect => $success );        push @sus, \%s;
 }      }
     }
 =pod  
     return \@sus;
 =item enable_tftpd  }
   
 runs C<tftpd(args =E<gt> 'on')> and makes sure that Tftpd is now 'listen'ing  =pod
   
 =cut  =item B<sudb_add>
   
 sub enable_tftpd  Takes the following paramaters
 {  
   my $self = shift;          suid : numeric,
           type : (reg|pr)
   my $vals = $self->tftpd( args => 'on' );          cir  : numeric,
           mir  : numeric,
   if ($vals->{'Tftpd'} eq 'listen') {          mac  : Almost any format, it will be reformatted,
     return $vals;  
   } else {  and returns true on success or undef otherwise.
     return undef;  
   }    $t->sudb_add($suid, 'reg', $cir, $mir, $mac);
 }  
   You should save_sudb() after calling this, or your changes  will be lost
 =pod  when the AP is rebooted.
   
 =item disable_tftpd  =cut
   
 runs C<tftpd(args =E<gt> 'off')> and makes sure that Tftpd is now 'disabled'  sub sudb_add
   {
 =cut          my $self = shift;
           my $suid = shift;
 sub disable_tftpd          my $type = shift;
 {          my $cir  = shift;
   my $self = shift;          my $mir  = shift;
           my $mac  = shift;
   my $vals = $self->tftpd( args => 'off' );  
           if ($suid =~ /\D/) {
   if (ref $vals eq 'HASH' && $vals->{'Tftpd'} eq 'disabled') {                  $self->last_error("Invalid suid '$suid'");
     return $vals;                  return;
   } else {          }
     return undef;  
   }          unless (lc($type) eq 'reg' || lc($type) eq 'pr') {
 }                  $self->last_error("Invalid type '$type'");
                   return;
 =pod          }
   
 =item cmd          if ($cir =~ /\D/) {
                   $self->last_error("Invalid CIR '$cir'");
 This does most of the work.  At the heart, it calls Net::Telnet::cmd() but it also does some special stuff for Trango.                  return;
           }
 Normally returns the last lines from from the command  
           if ($mir =~ /\D/) {
 Also accepts these options:                  $self->last_error("Invalid MIR '$mir'");
                   return;
 I<decode>          }
 - if this is true, then it will send the output lines to _decode_lines() and then returns the decoded output  
           my $new_mac = $mac;
 I<cmd_disconnects>          $new_mac =~ s/[^0-9A-Fa-f]//;
 - if this is true, it then sets logged_in() to false, then it will close() the connection and then sets is_connected() to false          unless (length $new_mac == 12) {
                   $self->last_error("Invalid MAC '$mac'");
 I<expect>                  return;
 - if this is set (usually to 'Success.') it will check for that in the last line of output and if it does not, will return undef because the command probably failed          }
           $new_mac = join ' ', $new_mac =~ /../g;
 I<args>  
 - a string containing the command line options that are passed to the command          my $string = 'sudb add ' .
                   $suid . ' ' .
 =cut                  $type . ' ' .
                   $cir  . ' ' .
 sub cmd                  $mir  . ' ' .
 {                  $new_mac;
   my $self = shift;  
   
   my @valid_net_telnet_opts = qw(          return $self->cmd( String => $string, expect => $success );
     String  }
     Output  
     Cmd_remove_mode  =pod
     Errmode  
     Input_record_separator  =item B<sudb_delete>
     Ors  
     Output_record_separator  Takes either 'all' or the  suid of the su to delete
     Prompt  and returns true on success or undef otherwise.
     Rs  
     Timeout    $t->sudb_delete($suid);
   );  
   You should save_sudb() after calling this, or your changes  will be lost
   my %cfg;  when the AP is rebooted.
   if (@_ == 1) {  
     $cfg{'String'} = shift;  =cut
   } elsif (@_ > 1) {  
     %cfg = @_;  sub sudb_delete
   }  {
           my $self = shift;
   $cfg{'Timeout'} ||= $self->Timeout;          my $suid = shift;
   
   unless ($cfg{'String'}) {          #if (lc($suid) ne 'all' || $suid =~ /\D/) {
     #$! = "No command passed";          if ($suid =~ /\D/) {
     #warn "No command passed\n";                  $self->last_error("Invalid suid '$suid'");
     return undef;                  return;
   }          }
   
   unless ($self->is_connected) {          return $self->cmd( String => 'sudb delete ' . $suid, expect => $success );
     #$! = "Not connected";  }
     #warn "Not connected\n";  
     return undef;  =pod
   }  
   =item B<sudb_modify>
   unless ($self->logged_in) {  
     #$! = "Not logged in";  Takes either the  suid of the su to change
     #warn "Not logged in\n";  as well as what you are changing, either "cir, mir or su2su"
     return undef;  and returns true on success or undef otherwise.
   }  
   cir and mir also take a value to set the cir/mir to.
   
   my %cmd;  su2su takes a group id parameter that is in hex.
   foreach (@valid_net_telnet_opts) {  
     if (exists $cfg{$_}) {    $t->sudb_modify($suid, 'cir', 512);
       $cmd{$_} = $cfg{$_};  
     }  You should save_sudb() after calling this, or your changes  will be lost
   }  when the AP is rebooted.
   if ($cfg{'args'}) {  
     $cmd{'String'} .= ' ' . $cfg{'args'};  =cut
   }  
   my @lines;  sub sudb_modify
   unless ($cfg{'no_prompt'}) {  {
     @lines = $self->SUPER::cmd(%cmd);          my $self  = shift;
   } else {          my $suid  = shift;
     $self->print($cmd{'String'});          my $opt   = shift;
     @lines = $self->lastline;          my $value = shift;
   }  
           if ($suid =~ /\D/) {
   $self->last_lines(\@lines);                  $self->last_error("Invalid suid '$suid'");
                   return;
   my $vals = 1;          }
   if ($PRIVATE{'Decode'} && $cfg{'decode'}) {  
     if ($cfg{'decode'} eq 'each') {          if (lc($opt) eq 'cir' or lc($opt) eq 'mir') {
       $vals = _decode_each_line(@lines);                  if ($value =~ /\D/) {
     } elsif ($cfg{'decode'} eq 'sulog') {                          $self->last_error("Invalid $opt '$value'");
       $vals = _decode_sulog(@lines);                          return;
     } else {                  }
       $vals = _decode_lines(@lines);          } elsif (lc($opt) eq 'su2su') {
     }                  if ($value =~ /[^0-9A-Za-f]/) {
   }                          $self->last_error("Invalid MAC '$value'");
                           return;
   $self->last_vals($vals);                  }
           } else {
                   $self->last_error("Invalid option '$opt'");
   my $last = $self->lastline;                  return;
           }
   if ((not $cfg{'expect'}) || $last =~ /$cfg{'expect'}$/) {  
     if ($cfg{'cmd_disconnects'}) {          my $string = 'sudb modify ' . $suid . ' ' . $opt . ' ' . $value;
       $self->logged_in(0);  
       $self->close;          return $self->cmd( String => $string, expect => $success );
       $self->is_connected(0);  }
     }  
   =pod
     if ($PRIVATE{'Decode'} && $cfg{'decode'}) {  
       return $vals;  =item B<enable_tftpd>
     } else {  
       return @lines;  - enable the TFTP server
     }  
   } else {  runs C<tftpd(args =E<gt> 'on')> and makes sure that Tftpd is now 'listen'ing
     #$! = "Error with command ($cfg{'string'}): $last";  
     return undef;  =cut
   }  
 }  sub enable_tftpd
   {
 #=item _decode_lines    my $self = shift;
   
 sub _decode_lines    my $vals = $self->tftpd( args => 'on' );
 {  
   my @lines = @_;    if ($vals->{'Tftpd'} eq 'listen') {
       return $vals;
   my %conf;    } else {
       return;
   my $key = '';    }
   my $val = '';  }
   my $in_key = 0;  
   my $in_val = 0;  =pod
   
   foreach my $line (@lines) {  =item B<disable_tftpd>
     next if $line =~ /$success$/;  
   - disable the TFTP server
     my @chars = split //, $line;  
   runs C<tftpd(args =E<gt> 'off')> and makes sure that Tftpd is now 'disabled'
     my $last_key = '';  
     foreach my $c (@chars) {  =cut
   
       if ($c eq '[' || $c eq "\r" || $c eq "\n") {  sub disable_tftpd
         if ($c eq '[') {  {
           $in_key = 1;    my $self = shift;
           $in_val = 0;  
         } else {    my $vals = $self->tftpd( args => 'off' );
           $in_key = 0;  
           $in_val = 0;    if (ref $vals eq 'HASH' && $vals->{'Tftpd'} eq 'disabled') {
         }      return $vals;
     } else {
         if ($key) {      return;
           $key =~ s/^\s+//;    }
           $key =~ s/\s+$//;  }
   
           $val =~ s/^\s+//;  =pod
           $val =~ s/\s+$//;  
   =item B<cmd>
           if ($key eq 'Checksum' && $last_key) {  
             # Special case for these bastids.  - runs a command on the AP.
             my $new = $last_key;  
             $new =~ s/\s+\S+$//;  This does most of the work.  At the heart, it calls Net::Telnet::cmd()
             $key = $new . " " . $key;  but it also does some special stuff for Trango.
           }  
   Normally returns the last lines from from the command
           $last_key = $key;  
           $conf{$key} = $val;  If you are using this, rather than one of the "easy" methods above,
           $key = '';  you probably want to read through the source of this module to see how
           $val = '';  some of the other commands are called.
         }  
   In addition to the Net::Telnet::cmd() options, it also accepts these:
       } elsif ($c eq ']') {  
         $in_val = 1;  I<decode>
         $in_key = 0;  
         $c = shift @chars;  - if this is true, then it will send the output lines to _decode_lines()
   and then returns the decoded output
       } elsif ($in_key) {  
         $key .= $c;  I<no_prompt>
   
       } elsif ($in_val) {  - if this is true, it does not wait for a prompt, so you are not stuck
         $val .= $c;  waiting for something that will never happen.
       }  
     }  I<cmd_disconnects>
   }  
   - if this is true, it then sets logged_in() to false, then it will
   if (%conf) {  close() the connection and set is_connected() to false
     return \%conf;  
   } else {  I<expect>
     return undef;  
   }  - if this is set (usually to 'Success.') it will check for that in the
 }  last line of output and if it does not, will return undef because the
   command probably failed
 #=item _decode_each_line  
   I<args>
 sub _decode_each_line  
 {  - a string containing the command line options that are passed to the
   my @lines = @_;  command
   my @decoded;  
   foreach my $line (@lines) {          $t->cmd( String => 'exit', no_prompt => 1, cmd_disconnects => 1 );
     my $decoded = _decode_lines($line);  
     push @decoded, $decoded if defined $decoded;  =cut
   }  
   return \@decoded;  sub cmd
 }  {
     my $self = shift;
 #=item _decode_sulog  
     my @valid_net_telnet_opts = qw(
 sub _decode_sulog      String
 {      Output
   my @lines = @_;      Cmd_remove_mode
   my @decoded;      Errmode
   my $last_tm;      Input_record_separator
   foreach my $line (@lines) {      Ors
     my $decoded = _decode_lines($line);      Output_record_separator
       Prompt
     if (defined $decoded) {      Rs
       if ($decoded->{'tm'}) {      Timeout
         $last_tm = $decoded->{'tm'};    );
         next;  
       } else {    my %cfg;
         $decoded->{'tm'} = $last_tm;    if (@_ == 1) {
       }      $cfg{'String'} = shift;
       next unless $last_tm;    } elsif (@_ > 1) {
       %cfg = @_;
       push @decoded, $decoded if defined $decoded;    }
     }  
   }    $cfg{'Timeout'} ||= $self->Timeout;
   return \@decoded;  
 }    unless ($cfg{'String'}) {
       $self->last_error("No command passed");
 1;      return;
 __END__    }
   
 =back    unless ($self->is_connected) {
       $self->last_error("Not connected");
 =head1 SEE ALSO      return;
     }
 Trango Documentation - http://www.trangobroadband.com/support/product_docs.htm  
     unless ($self->logged_in) {
 L<Net::Telnet>      $self->last_error("Not logged in");
       return;
 =head1 TODO    }
   
 There are still a lot of commands that are not accessed directly.  If you call them (as cmd("command + args") or whatever) and it works, please send me examples that work and I will try to get it incorporated into the next version of the script.  
     my %cmd;
 I also want to be able to parse the different types of output from commands like su, sudb all and anything else that would be better available as a perl datastructure.    foreach (@valid_net_telnet_opts) {
       if (exists $cfg{$_}) {
 =head1 AUTHOR        $cmd{$_} = $cfg{$_};
       }
 Andrew Fresh E<lt>andrew@rraz.netE<gt>    }
     if ($cfg{'args'}) {
 =head1 COPYRIGHT AND LICENSE      $cmd{'String'} .= ' ' . $cfg{'args'};
     }
 Copyright (C) 2005 by Andrew Fresh  
     my @lines;
 This library is free software; you can redistribute it and/or modify    if ($cfg{'no_prompt'}) {
 it under the same terms as Perl itself, either Perl version 5.8.7 or,      $self->print($cmd{'String'});
 at your option, any later version of Perl 5 you may have available.      @lines = $self->lastline;
     } else {
       @lines = $self->SUPER::cmd(%cmd);
 =cut    }
   
     $self->last_lines(\@lines);
   
     my $vals = 1;
     if ($PRIVATE{'Decode'} && $cfg{'decode'}) {
       if ($cfg{'decode'} eq 'each') {
         $vals = _decode_each_line(@lines);
       } elsif ($cfg{'decode'} eq 'sulog') {
         $vals = _decode_sulog(@lines);
       } elsif ($cfg{'decode'} eq 'maclist') {
         $vals = _decode_maclist(@lines);
       } else {
         $vals = _decode_lines(@lines);
       }
     }
   
     $self->last_vals($vals);
   
   
     my $last = $self->lastline;
   
     if ((not $cfg{'expect'}) || $last =~ /$cfg{'expect'}$/) {
       if ($cfg{'cmd_disconnects'}) {
         $self->logged_in(0);
         $self->close;
         $self->is_connected(0);
       }
   
       if ($PRIVATE{'Decode'} && $cfg{'decode'}) {
         return $vals;
       } else {
         return \@lines;
       }
     } else {
       $self->last_error("Error with command ($cfg{'String'}): $last");
       return;
     }
   }
   
   #=item _decode_lines
   
   sub _decode_lines
   {
     my @lines = @_;
   
     my %conf;
   
     my $key = '';
     my $val = undef;
     my @vals;
     my $in_key = 0;
     my $in_val = 1;
   
     foreach my $line (@lines) {
       next if $line =~ /$success$/;
   
       my @chars = split //, $line;
   
       my $last_key = '';
       foreach my $c (@chars) {
   
         if ($c eq '[' || $c eq "\r" || $c eq "\n") {
           if ($c eq '[') {
             $in_key = 1;
             $in_val = 0;
           } else {
             $in_key = 0;
             $in_val = 1;
           }
   
           if ($key) {
             $key =~ s/^\s+//;
             $key =~ s/\s+$//;
   
             if ($val) {
               $val =~ s/^\s+//;
               $val =~ s/\s+$//;
             }
   
             if ($key eq 'Checksum' && $last_key) {
               # Special case for these bastids.
               my $new = $last_key;
               $new =~ s/\s+\S+$//;
               $key = $new . " " . $key;
             }
   
             $conf{$key} = $val;
             $last_key = $key;
             $key = '';
           } elsif ($val) {
                           push @vals, $val;
                   }
           $val = '';
   
         } elsif ($c eq ']') {
           $in_val = 1;
           $in_key = 0;
           $c = shift @chars;
   
         } elsif ($in_key) {
           $key .= $c;
   
         } elsif ($in_val) {
           $val .= $c;
         }
       }
     }
   
     unless ($key) {
       push @vals, $val;
     }
   
     if (@vals == 1) {
       $val = $vals[0];
     } elsif (@vals) {
       $val= \@vals;
     } else {
       $val = undef;
     }
   
     if (%conf) {
       $conf{_pre} = $val if $val;
       return \%conf;
     } else {
       return $val;
     }
   }
   
   #=item _decode_each_line
   
   sub _decode_each_line
   {
     my @lines = @_;
     my @decoded;
     foreach my $line (@lines) {
       my $decoded = _decode_lines($line);
       push @decoded, $decoded if defined $decoded;
     }
     return \@decoded;
   }
   
   #=item _decode_sulog
   
   sub _decode_sulog
   {
     my @lines = @_;
     my @decoded;
     my $last_tm;
     foreach my $line (@lines) {
       my $decoded = _decode_lines($line);
   
       if (defined $decoded) {
         if ($decoded->{'tm'}) {
           $last_tm = $decoded->{'tm'};
           next;
         } else {
           $decoded->{'tm'} = $last_tm;
         }
         next unless $last_tm;
   
         push @decoded, $decoded if defined $decoded;
       }
     }
     return \@decoded;
   }
   
   #=item _decode_maclist
   
   sub _decode_maclist
   {
           my @lines = @_;
           my @decoded;
           my $total_entries = 0;
           my $current_tm = 0;
           foreach my $line (@lines) {
                   $line =~ s/\r?\n$//;
                   my ($mac, $loc, $tm) = $line =~ /
                           ([0-9a-fA-F ]{17})\s+
                           (.*)\s+
                           tm\s+
                           (\d+)
                   /x;
   
                   if ($mac) {
                           $mac =~ s/\s+//g;
                           $loc =~ s/^\s+//;
                           $loc =~ s/\s+$//;
   
                           my $suid = undef;
                           if ($loc =~ /suid\s+=\s+(\d+)/) {
                                   $suid = $1;
                                   $loc = undef;
                           }
   
                           push @decoded, {
                                   mac  => $mac,
                                   loc  => $loc,
                                   tm   => $tm,
                                   suid => $suid,
                           };
                   } elsif ($line =~ /(\d+)\s+entries/) {
                           $total_entries = $1;
                   } elsif ($line =~ /current tm = (\d+)\s+sec/) {
                           $current_tm = $1
                   }
           }
   
           map { $_->{'cur_tm'} = $current_tm } @decoded;
   
           if (scalar @decoded == $total_entries) {
                   return \@decoded;
           } else {
                   # XXX we should have a way to set last error, not sure why we don't
                   return;
           }
   }
   
   1;
   __END__
   
   =back
   
   =head1 SEE ALSO
   
   Trango Documentation - http://www.trangobroadband.com/support/product_docs.htm
   
   L<Net::Telnet>
   
   =head1 TODO
   
   There are still a lot of commands that are not accessed directly.  If
   you call them (as cmd("command + args") or whatever) and it works,
   please send me examples that work and I will try to get it incorporated
   into the next version of the script.
   
   I also want to be able to parse the different types of output from
   commands like su, sudb all and anything else that would be better
   available as a perl datastructure.
   
   =head1 AUTHOR
   
   Andrew Fresh E<lt>andrew@rraz.netE<gt>
   
   =head1 COPYRIGHT AND LICENSE
   
   Copyright (C) 2005,2006,2007 by Andrew Fresh
   
   This library is free software; you can redistribute it and/or modify
   it under the same terms as Perl itself, either Perl version 5.8.7 or,
   at your option, any later version of Perl 5 you may have available.
   
   =cut
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  Added in v.1.31
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