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Diff for /trango/Net-Telnet-Trango/lib/Net/Telnet/Trango.pm between version 1.2 and 1.60

version 1.2, 2005/12/30 01:02:41 version 1.60, 2009/07/31 22:46:07
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 package Net::Telnet::Trango;  package Net::Telnet::Trango;
 # $RedRiver$  
 use strict;  # $RedRiver: Trango.pm,v 1.59 2009/07/31 21:44:33 andrew Exp $
 use warnings;  use strict;
 use base 'Net::Telnet';  use warnings;
   use base 'Net::Telnet';
 =pod  
   =pod
 =head1 NAME  
   =head1 NAME
 Net::Telnet::Trango - Perl extension for accessing the Trango telnet interface  
   Net::Telnet::Trango
 =head1 SYNOPSIS  - Perl extension for accessing the Trango telnet interface
   
   use Net::Telnet::Trango;  =head1 SYNOPSIS
   my $t = new Net::Telnet::Trango ({  
     Host    => $fox,    use Net::Telnet::Trango;
     Timeout => 5,    my $t = new Net::Telnet::Trango ( Timeout => 5 );
   });  
       $t->open( Host => $ap ) or die "Error connecting: $!";
   my ($type, $version) = $t->open;  
       $t->login('password') or die "Couldn't log in: $!";
   unless (defined $type && defined $version) {  
     die "Error connecting: $!";    # Do whatever
   }  
     $t->exit;
   $t->login('password') or die "Couldn't log in: $!";    $t->close;
     
   # Do whatever  =head1 DESCRIPTION
     
   $t->exit;  Perl access to the telnet interface on Trango APs and SUs.
   $t->close;  
   A handy feature is that it will parse the output from certain commands that is
 =head1 DESCRIPTION  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
 Perl access to the telnet interface on Trango Foxes, SUs and APs.  do.
   
 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.  =head2 EXPORT
   
 =head2 EXPORT  None
   
 None  =head1 METHODS
   
 =cut  =cut
   
 our $VERSION = '0.01';  our $VERSION = '0.05';
   
 my %PRIVATE = (  my $EMPTY = q{};
   is_connected => 0,  my $SPACE = q{ };
   logged_in => 0,  
 );  =pod
   
 =pod  =head2 B<new> - Creates a new Net::Telnet::Trango object.
   
 =head1 METHODS      new([Options from Net::Telnet,]
           [Decode => 0,]);
 =head2 ACCESSORS  
   Same as new from L<Net::Telnet> but sets the default Trango Prompt:
 =over  '/[\$#]>\s*\Z/'
   
 =item Host  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
 returns the name of the host that you are accessing  instead return a reference to an array of the lines that were returned
   from the command.
 =item firmware_version  
   =cut
 returns the firmware version on the trango if available otherwise undef.    
 Available after a successful open()  sub new {
 This is usually only set internally      my $class = shift;
   
 =item host_type      my %args = ();
       if ( @_ == 1 ) {
 returns the type of host from the login banner for example M5830S or M5300S.            $args{'Host'} = shift;
 Available after a successful open()      }
 This is usually only set internally      else {
           %args = @_;
 =item is_connected      }
   
 returns 1 after a successful open() otherwise undef      $args{'Prompt'} ||= '/[\$#]>\s*\r?\n?$/';
 This is usually only set internally  
       my $decode = $args{'Decode'};
 =item logged_in      delete $args{'Decode'};
   
 returns 1 after a successful login() 0 if it failed and undef if      my $self = $class->SUPER::new(%args);
 login() was never called      bless $self if ref $self;
 This is usually only set internally  
       $args{Decode}       = defined $decode ? $decode : 1;
 =item login_banner      $args{is_connected} = 0;
       $args{logged_in}    = 0;
 returns the banner that is displayed when first connected at login.  Only set after a successful open()  
       *$self->{net_telnet_trango} = \%args;
 This is usually only set internally  
       return $self;
 =item last_lines  }
   
 returns the output from the last cmd() that was run as an array ref  #  _password <new password> <new password>
 This is usually only set internally  #  ? [command]
   #  apsearch <secs> <ch#> <h|v> [<ch#> <h|v>]...
 =back  #  arp -bcast <on|off>
   #  bcastscant <all|suid> <ch#> <h|v> [<ch#> <h|v> ...
 =head2 ALIASES  #  bye
   #  cf2cf ap [default|<size>]
 =over  #  date
   #  date <month> <day> <year>
 =item bye  #  freq scantable
   #  freq channeltable
 alias of exit()  #  freq writescan [<ch#> <h|v>]
   #  freq writechannel [<ch#> <freq>] ...
 =item reboot  #  freq <ch #> <h|v>
   #  help [command]
 alias of restart()  #  heater [<on temp> <off temp>]
   #  ipconfig [<new ip> <new subnet mask> <new gateway>]
 =back  #  linktest <suid> [<pkt len, bytes> [<# of pkts> [<# of cycle>]]]
   #  log [<# of entries, 1..179>]
 =head2 COMMANDS  #  log <sum> <# of entries, 1..179>
   #  logout
 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:  #  opmode [ap [y]]
 C<tftpd(args =E<gt> 'on')> would enable tftpd  #  password
   #  ping <ip addr>
 =over  #  polar <h|v>
   #  power <setism|setunii> <max|min|<dBm>>
 =item tftpd  #  reboot
   #  restart
 Returns a hash ref of the decoded output from the command.  #  remarks [<str>]
   #  rfrxthreshold [<ism|unii> <-90|-85|-80|-75|-70|-65>]
 Also see enable_tftpd() and disable_tftpd() as those check for correct output  #  rfrxth [<ism|unii> <-90|-85|-80|-75|-70|-65>]
   #  sysinfo
 =item ver  #  set suid <id>
   #  set apid <id>
 Returns a hash ref of the decoded output from the command.  #  set baseid <id>
   #  set defaultopmode [<ap|su> <min,0..10>]
 =item sysinfo  #  set defaultopmode off
   #  set snmpcomm [<read | write | trap (id or setall)> <str>]
 Returns a hash ref of the decoded output from the command.  #  set mir [on|off]
   #  set mir threshold <kbps>
 =item exit  #  set rssitarget [<ism|unii> <dBm>]
   #  set serviceradius [<ism | unii> <miles>]
 exits the command session with the trango and closes the connection  #  ssrssi <ch #> <h|v>
   #  su [<suid>|all]
 =item reboot  #  su changechannel <all|suid> <ch#> <h|v>
   #  su ipconfig <suid> <new ip> <new subnet> <new gateway>
 reboots the trango and closes the connection  #  su [live|poweroff|priority]
   #  su <ping|info|status> <suid>
 =cut  #  su powerleveling <all|suid>
   #  su reboot <all|suid>
 #  _password <new password> <new password>  #  su restart <all|suid>
 #  ? [command]  #  su testrflink <all|suid> [r]
 #  apsearch <secs> <ch#> <h|v> [<ch#> <h|v>]...  #  su testrflink <setlen> [64..1600]
 #  arp -bcast <on|off>  #  su testrflink <aptx> [20..100]
 #  bcastscant <all|suid> <ch#> <h|v> [<ch#> <h|v> ...  #  su sw <suid|all> <sw #> <on|off>
 #  bye  #  sudb [dload | view]
 #  cf2cf ap [default|<size>]  #  sudb add <suid> pr <cir,kbps> <mir,kbps> <device id,hex>
 #  date  #  sudb add <suid> reg <cir,kbps> <mir,kbps> <device id,hex>
 #  date <month> <day> <year>  #  sudb delete <all|<suid>>
 #  freq scantable  #  sudb modify <suid> <cir|mir> <kbps>
 #  freq channeltable  #  sudb modify <suid> <su2su> <group id,hex>
 #  freq writescan [<ch#> <h|v>]  #  sudb view
 #  freq writechannel [<ch#> <freq>] ...  #  sulog [lastmins | sampleperiod <1..60>]
 #  freq <ch #> <h|v>  #  sulog [<# of entry,1..18>]
 #  help [command]  #  survey <ism|unii> <time, sec> <h|v>
 #  heater [<on temp> <off temp>]  #  sw [<sw #> <on|off>]
 #  ipconfig [<new ip> <new subnet mask> <new gateway>]  #  temp
 #  log [<# of entries, 1..179>]  #  tftpd [on|off]
 #  log <sum> <# of entries, 1..179>  #  time
 #  logout  #  time <hour> <min> <sec>
 #  opmode [ap [y]]  #  save <mainimage|fpgaimage> <current chksum> <new chksum>
 #  password  #  save <systemsetting|sudb>
 #  ping <ip addr>  #  updateflash <mainimage|fpgaimage> <current chksum> <new chksum>
 #  polar <h|v>  #  updateflash <systemsetting|sudb>
 #  power <setism|setunii> <max|min|<dBm>>  
 #  reboot  =pod
 #  restart  
 #  remarks [<str>]  =head1 ACCESSORS
 #  rfrxthreshold [<ism|unii> <-90|-85|-80|-75|-70|-65>]  
 #  rfrxth [<ism|unii> <-90|-85|-80|-75|-70|-65>]  These are usually only set internally.
 #  sysinfo  
 #  set suid <id>  =head2 B<firmware_version> - returns the firmware version
 #  set apid <id>  
 #  set baseid <id>  Returns the firmware version if available, otherwise undef.
 #  set defaultopmode [<ap|su> <min,0..10>]  
 #  set defaultopmode off  It should be available after a successful open().
 #  set snmpcomm [<read | write | trap (id or setall)> <str>]  
 #  set mir [on|off]  =head2 B<host_type> - return the type of host you are connected to.
 #  set mir threshold <kbps>  
 #  set rssitarget [<ism|unii> <dBm>]  returns the type of host from the login banner for example M5830S or M5300S.
 #  set serviceradius [<ism | unii> <miles>]  
 #  ssrssi <ch #> <h|v>  Should be available after a successful open().
 #  su [<suid>|all]  
 #  su changechannel <all|suid> <ch#> <h|v>  =head2 B<is_connected> - Status of the connection to host.
 #  su ipconfig <suid> <new ip> <new subnet> <new gateway>  
 #  su [live|poweroff|priority]  returns 1 when connected, undef otherwise.
 #  su <ping|info|status> <suid>  
 #  su powerleveling <all|suid>  =head2 B<logged_in> - Status of being logged in to the host.
 #  su reboot <all|suid>  
 #  su restart <all|suid>  returns 1 after a successful login(), 0 if it failed and undef if
 #  su testrflink <all|suid> [r]  login() was never called.
 #  su testrflink <setlen> [64..1600]  
 #  su testrflink <aptx> [20..100]  =head2 B<login_banner> - The banner when first connecting to the host.
 #  su sw <suid|all> <sw #> <on|off>  
 #  sudb [dload | view]  returns the banner that is displayed when first connected at login.
 #  sudb add <suid> pr <cir,kbps> <mir,kbps> <device id,hex>  Only set after a successful open().
 #  sudb add <suid> reg <cir,kbps> <mir,kbps> <device id,hex>  
 #  sudb delete <all|<suid>>  =head2 B<last_lines> - The last lines of output from the last cmd().
 #  sudb modify <suid> <cir|mir> <kbps>  
 #  sudb modify <suid> <su2su> <group id,hex>  returns, as an array ref, the output from the last cmd() that was run.
 #  sudb view  
 #  sulog [lastmins | sampleperiod <1..60>]  =head2 B<last_error> - A text output of the last error that was encountered.
 #  sulog [<# of entry,1..18>]  
 #  survey <ism|unii> <time, sec> <h|v>  returns the last error reported.  Probably contains the last entry in
 #  sw [<sw #> <on|off>]  last_lines.
 #  temp  
 #  tftpd [on|off]  =head1 ALIASES
 #  time  
 #  time <hour> <min> <sec>  =head2 B<bye> - alias of exit()
 #  save <mainimage|fpgaimage> <current chksum> <new chksum>  
 #  save <systemsetting|sudb>  Does the same as exit()
 #  updateflash <mainimage|fpgaimage> <current chksum> <new chksum>  
 #  updateflash <systemsetting|sudb>  =head2 B<restart> - alias of reboot()
   
   Does the same as reboot()
 my $success = 'Success.';  
 my %COMMANDS = (  =head2 B<save_systemsetting> - alias of save_ss()
   tftpd       => { decode => 1, expect => $success },  
   ver         => { decode => 1 },  Does the same as save_ss()
   sysinfo     => { decode => 1, expect => $success },  
   updateflash => { decode => 1, expect => $success },  =head1 COMMANDS
   'exit'      => { Prompt => '//', cmd_disconnects => 1 },  
   reboot      => { Prompt => '//', cmd_disconnects => 1 },  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:
 my %ALIASES = (  C<tftpd(args =E<gt> 'on')> would enable tftpd
   bye     => 'exit',  
   restart => 'reboot',  =head2 B<tftpd> - The output from the tftpd command
 );  
   Returns a hash ref of the decoded output from the
 my %ACCESS = map { $_ => 1 } qw(  command.
   firmware_version  
   host_type  Also see enable_tftpd() and disable_tftpd() as those check that it was
   Host  successfully changed.
   is_connected  
   logged_in  =head2 B<ver> - The output from the ver command
   login_banner  
   Timeout  Returns a hash ref of the decoded output from the
   last_lines  command.
 );  
   =head2 B<sysinfo> - The output from the sysinfo command
 sub AUTOLOAD  
 {  Returns a hash ref of the decoded output from the
   my $self = shift;  command.
   
   my ($method) = (our $AUTOLOAD) =~ /^.*::(\w+)$/  =head2 B<exit> - Exits the connection
     or die "Weird: $AUTOLOAD";  
   exits the command session with the Trango and closes
   if (exists $ALIASES{$method}) {  the connection
     $method = $ALIASES{$method};  
     return $self->$method(@_);  =head2 B<reboot> - Sends a reboot command
   }  
   reboots the Trango and closes the connection
   if (exists $COMMANDS{$method}) {  
     $COMMANDS{$method}{'String'} ||= $method;  =head2 B<reset> <all|0..2> - Sends a reset command
     return $self->cmd(%{ $COMMANDS{$method} }, @_);  
   }  resets settings to default
   
   if (exists $ACCESS{$method}) {  =head2 B<remarks> - Set or retrieve the remarks.
     my $prev = $PRIVATE{$method};  
     ($PRIVATE{$method}) = @_ if @_;  Takes an optional argument, which sets the remarks.
     return $prev;  If there is no argument, returns the current remarks.
   }  
     my $old_remarks = $t->remarks();
   $method = "SUPER::$method";    $t->remarks($new_remarks);
   return $self->$method(@_);  
 }  =head2 B<sulog> - The output from the sulog command
   
 =pod  Returns an array ref of hashes containing each log
   line.
 =item new  
   =head2 B<save_sudb> - saves the sudb
 =cut  
   Returns true on success, undef on failure
 sub new  
 {  =head2 B<syslog> - The output from the sulog command
   my $class = shift;  
   my $args = shift || {};  Returns a hashref of the output from the syslog command
   
   $args->{'Timeout'} ||= 5;  =head2 B<pipe> - the pipe command
   $args->{'Prompt'}  ||= '/#> *$/';  
   Returns the output from the pipe command
   foreach my $key (keys %{ $args }) {  
     $PRIVATE{$key} = $args->{$key};  =head2 B<maclist> - retrieves the maclist
   }  
   Returns the output from the maclist command
   my $self = $class->SUPER::new(%{ $args });  
   bless $self if ref $self;  =head2 B<maclist_reset> - resets the maclist.
   
   return $self;  No useful output.
 }  
   =head2 B<eth_link> - eth link command
 =pod  
   Returns the output from the eth link command
 =item open  
   This command seems to cause some weird issues.  It often will cause the
 =cut  command after it to appear to fail.  I am not sure why.
   
 sub open  =head2 B<su_info> - gets the su info
 {  
   my $self = shift;  Returns information about the SU.
   
   unless ( $self->SUPER::open(  You need to pass in the $suid and it will return the info for that suid.
       #Host => $self->Host,  
       #Errmode => 'return',    $t->su_info($suid);
   ) ) {  
     #$! = "Couldn't connect to " . $self->Host . ":  $!";  =head2 B<su_testrflink> - tests the RF Link to an su
     return undef;  
   }    $t->su_testrflink($suid|'all');
   #$self->dump_log('dump.log');  
   =head2 B<save_ss> - saves the config.
   ## Login to remote host.  
   unless ($self->waitfor(  Returns 1 on success, undef on failure.
     -match => '/password: ?$/i',  
     -errmode => "return",  =head2 B<set_baseid> - sets baseid
   ) ) {  
   #$! = "problem connecting to host (" . $self->Host . "): " .      $t->set_baseid($baseid);
   #    $self->lastline;  
     return undef;  =head2 B<set_suid> - sets baseid
   }  
       $t->set_suid($baseid);
   $self->parse_login_banner($self->lastline);  
   =head2 B<set_defaultopmode> - sets default opmode
   $self->is_connected(1);  
       $t->set_defaultopmode(ap|su);
   return $self->is_connected;  
 }  =head2 B<opmode> - sets or returns the opmode
   
 =pod      $t->opmode([ap y|su y]);
   
 =item login  =head2 B<freq> - sets or returns the freq
   
 =cut      $channel = '11 v';
       $t->freq([$channel]);
 sub login  
 {  =head2 B<freq_writescan> - sets the freq writescan
   my $self = shift;  
       $channels = '11 v 11 h 12 v 12 h';
   unless ($self->is_connected) {      $t->freq_writescan($channels);
     $self->open or return undef;  
   }  =head2 B<freq_scantable> - returns the freq scantable
   
   my $password = shift;      $channels = $t->freq_scantable();
       # now $channels eq '11 v 11 h 12 v 12 h';
   $self->print($password);  
   unless ($self->waitfor(  
     -match => $self->prompt,  =cut
     -errmode => "return",  
   ) ) {  my $success  = 'Success\\.';
     #$! = "login ($self->Host) failed: " . $self->lastline;  my %COMMANDS = (
     return undef;      _clear      => { String    => "\n" },
   }      tftpd       => { decode    => 'all', expect => $success },
       ver         => { decode    => 'all' },
   $self->logged_in(1);      sysinfo     => { decode    => 'all', expect => $success },
       updateflash => { decode    => 'all', expect => $success },
   return $self->logged_in;      sulog       => { decode    => 'sulog', expect => $success },
 }      'exit'      => { no_prompt => 1, cmd_disconnects => 1 },
       reboot      => { no_prompt => 1, cmd_disconnects => 1 },
 =pod      'reset'   => {},
       remarks   => { decode => 'all', expect => $success },
 =item parse_login_banner      save_sudb => { String => 'save sudb', expect => $success },
       syslog  => { expect => $success },
 =cut      'pipe'  => {},      # XXX needs a special decode
       maclist => { decode => 'maclist' },
 sub parse_login_banner      maclist_reset => { String => 'maclist reset', expect => 'done' },
 {      eth_link      => { String => 'eth link',      expect => $success },
   my $self = shift;      su_info => { String => 'su info', decode => 'all', expect => $success },
       su_testrflink =>
   if (@_) {          { String => 'su testrflink', decode => 'each', expect => $success },
     $self->login_banner(@_);      save_ss    => { String => 'save ss', expect => $success },
   }      set_baseid => {
           String => 'set baseid',
   my $banner = $self->login_banner;          decode => 'all',
           expect => $success
   my ($type, $ver) = $banner =~      },
     /Welcome to Trango Broadband Wireless (\S+)[\s-]+(.+)$/i;      set_suid => {
           String => 'set suid',
   $self->login_banner($banner);          decode => 'all',
   $self->host_type($type);          expect => $success
   $self->firmware_version($ver);      },
       set_defaultopmode => {
   return 1;          String => 'set defaultopmode',
 }          decode => 'all',
           expect => $success
 =pod      },
       opmode => { decode => 'all',  expect => $success },
 =item enable_tftpd      freq   => { decode => 'freq', expect => $success },
       freq_writescan =>
 =cut          { String => 'freq writescan', decode => 'all', expect => $success },
       freq_scantable =>
 sub enable_tftpd          { String => 'freq scantable', decode => 'all', expect => $success },
 {      arq => { decode => 'all' },
   my $self = shift;  );
   
   my $vals = $self->tftpd( args => 'on' );  my %ALIASES = (
       bye               => 'exit',
   if ($vals->{'Tftpd'} eq 'listen') {      restart           => 'reboot',
     return $vals;      Host              => 'host',
   } else {      save_systemseting => 'save_ss',
     return undef;  );
   }  
 }  my %ACCESS = map { $_ => 1 } qw(
       firmware_version
 =pod      host_type
       is_connected
 =item disable_tftpd      logged_in
       login_banner
 =cut      Timeout
       last_lines
 sub disable_tftpd      last_vals
 {      last_error
   my $self = shift;      Decode
   );
   my $vals = $self->tftpd( args => 'off' );  
   sub AUTOLOAD {
   if (ref $vals eq 'HASH' && $vals->{'Tftpd'} eq 'disabled') {      my $self = shift;
     return $vals;  
   } else {      my ($method) = ( our $AUTOLOAD ) =~ /^.*::(\w+)$/
     return undef;          or die "Weird: $AUTOLOAD";
   }  
 }      if ( exists $ALIASES{$method} ) {
           $method = $ALIASES{$method};
 =pod          return $self->$method(@_);
       }
 =item cmd  
       if ( exists $COMMANDS{$method} ) {
 =cut          my %cmd;
           foreach my $k ( keys %{ $COMMANDS{$method} } ) {
 sub cmd              $cmd{$k} = $COMMANDS{$method}{$k};
 {          }
   my $self = shift;          $cmd{'String'} ||= $method;
           $cmd{'args'} .= $SPACE . shift if ( @_ == 1 );
   my @valid_net_telnet_opts = qw(          return $self->cmd( %cmd, @_ );
     String      }
     Output  
     Cmd_remove_mode      if ( exists $ACCESS{$method} ) {
     Errmode          my $s    = *$self->{net_telnet_trango};
     Input_record_separator          my $prev = $s->{$method};
     Ors          ( $s->{$method} ) = @_ if @_;
     Output_record_separator          return $prev;
     Prompt      }
     Rs  
     Timeout      $method = "SUPER::$method";
   );      return $self->$method(@_);
   }
   my %cfg;  
   if (@_ == 2) {  =pod
     $cfg{'String'} = shift;  
   } elsif (@_ > 2) {  =head2 B<open> - Open a connection to a Trango AP.
     %cfg = @_;  
   }  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
   $cfg{'Timeout'} ||= $self->Timeout;  host_type() and firmware_version()
   
   unless ($cfg{'String'}) {  =cut
     #$! = "No command passed";  
     warn "No command passed\n";  sub open {
     return undef;      my $self = shift;
   }  
       unless ( $self->SUPER::open(@_) ) {
   unless ($self->is_connected) {          $self->last_error( "Couldn't connect to " . $self->host . ":  $!" );
     #$! = "Not connected";          return;
     warn "Not connected\n";      }
     return undef;  
   }      ## Get to login prompt
       unless (
   unless ($self->logged_in) {          $self->waitfor(
     #$! = "Not logged in";              -match   => '/password: ?$/i',
     warn "Not logged in\n";              -errmode => "return",
     return undef;          )
   }          )
       {
           $self->last_error( "problem connecting to host ("
   my %cmd;                  . $self->host . "): "
   foreach (@valid_net_telnet_opts) {                  . $self->lastline );
     if (exists $cfg{$_}) {          return;
       $cmd{$_} = $cfg{$_};      }
     }  
   }      $self->parse_login_banner( $self->lastline );
   if ($cfg{'args'}) {  
     $cmd{'String'} .= ' ' . $cfg{'args'};      $self->is_connected(1);
   }  
   my @lines = $self->SUPER::cmd(%cmd);      return $self->is_connected;
   }
   $self->last_lines(\@lines);  
   =pod
   my $vals = 1;  
   if ($cfg{'decode'}) {  =head2 B<login> - Login to the AP.
     $vals = _decode_lines(@lines);  
   }  Calls open() if not already connected, then sends the password and sets
   logged_in() if successful
   
   my $last = $self->lastline;  =cut
   
   if ((not $cfg{'expect'}) || $last =~ /$cfg{'expect'}$/) {  sub login {
     if ($cfg{'cmd_disconnects'}) {      my $self = shift;
       $self->logged_in(0);  
       $self->close;      unless ( $self->is_connected ) {
       $self->is_connected(0);          $self->open or return;
     }      }
   
     if ($cfg{'decode'}) {      my $password = shift;
       return $vals;  
     } else {      $self->print($password);
       return @lines;      unless (
     }          $self->waitfor(
   } else {              -match   => $self->prompt,
     #$! = "Error with command ($cfg{'string'}): $last";              -errmode => "return",
     return undef;          )
   }          )
 }      {
           $self->last_error( "login ($self->host) failed: " . $self->lastline );
 #=item _decode_lines          return;
       }
 sub _decode_lines  
 {      $self->logged_in(1);
   my @lines = @_;  
       return $self->logged_in;
   my %conf;  }
   
   my $key = '';  =pod
   my $val = '';  
   my $in_key = 0;  =head2 B<parse_login_banner> - Converts the login_banner to something useful.
   my $in_val = 0;  
   Takes a login banner (what you get when you first connect to the Trango)
   foreach my $line (@lines) {  or reads what is already in login_banner() then parses it and sets
     my @chars = split //, $line;  host_type() and firmware_version() as well as login_banner()
   
     my $last_key = '';  =cut
     foreach my $c (@chars) {  
   sub parse_login_banner {
       if ($c eq '[' || $c eq "\r" || $c eq "\n") {      my $self = shift;
         if ($c eq '[') {  
           $in_key = 1;      if (@_) {
           $in_val = 0;          $self->login_banner(@_);
         } else {      }
           $in_key = 0;  
           $in_val = 0;      my $banner = $self->login_banner;
         }  
       my ( $type, $sep1, $subtype, $sep2, $ver )
         if ($key) {          = $banner
           $key =~ s/^\s+//;          =~ /Welcome to Trango Broadband Wireless,? (\S+)([\s-]+)(\S+)([\s-]+)(.+)$/i;
           $key =~ s/\s+$//;  
       $type .= $sep1 . $subtype;
           $val =~ s/^\s+//;      $ver = $subtype . $sep2 . $ver;
           $val =~ s/\s+$//;  
       $self->login_banner($banner);
           if ($key eq 'Checksum' && $last_key) {      $self->host_type($type);
             # Special case for these bastids.      $self->firmware_version($ver);
             my $new = $last_key;  
             $new =~ s/\s+\S+$//;      return 1;
             $key = $new . " " . $key;  }
           }  
   =pod
           $last_key = $key;  
           $conf{$key} = $val;  =head2 B<linktest> - Link test to SU
           $key = '';  
           $val = '';  linktest('suid'[, 'pkt len, bytes'[, '# of pkts'[, '# of cycles']]]);
         }  
   Returns a hash reference to the results of the test
       } elsif ($c eq ']') {  
         $in_val = 1;  =cut
         $in_key = 0;  
         $c = shift @chars;  sub linktest {
       my $self = shift;
       } elsif ($in_key) {      my $suid = shift;
         $key .= $c;  
       # These numbers are what I found as defaults when running the command
       } elsif ($in_val) {      my $pkt_len = shift || 1600;
         $val .= $c;      my $pkt_cnt = shift || 500;
       }      my $cycles  = shift || 10;
     }  
   }      my %config = @_;
   
   if (%conf) {      # * 2, one for the FromAP, one FromSU.  Then / 1000 to get to ms.
     return \%conf;      # XXX This might need to be changed, this makes the default timeout the
   } else {      # same as $pkt_len, and that might not be enough at slower speeds.
     return \@lines;      $config{Timeout} ||= int( ( $pkt_len * $pkt_cnt * $cycles * 2 ) / 1000 );
   }  
 }      my $string = join $SPACE, 'linktest', $suid, $pkt_len, $pkt_cnt, $cycles;
       return $self->cmd(
 1;          %config,
 __END__          String => $string,
           decode => 'linktest',
 =back      );
   
 =head1 SEE ALSO  }
   
 If you have a web site set up for your module, mention it here.  =pod
   
 Trango Documentation - http://www.trangobroadband.com/support/product_docs.htm  =head2 B<su_password> - Set the password on SUs connected to the AP.
   
 L<Net::Telnet>  su_password('new_password'[, 'suid']) If no suid is specified,
   the default is "all".
 =head1 TODO  
     $t->su_password('good_pass', 5);
 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.  
   =cut
 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.  
   sub su_password {
 =head1 AUTHOR      my $self     = shift;
       my $new_pass = shift || $EMPTY;
 Andrew Fresh E<lt>andrew@rraz.netE<gt>      my $su       = shift || 'all';
   
 =head1 COPYRIGHT AND LICENSE      unless ( defined $new_pass ) {
           $self->last_error("No new password");
 Copyright (C) 2005 by Andrew Fresh  
           #return;
 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.      return $self->cmd(
           String => 'su password '
               . $su
 =cut              . $SPACE
               . $new_pass
               . $SPACE
               . $new_pass,
           expect => $success,
       );
   }
   
   =pod
   
   =head2 B<ipconfig> - Change IP configuration
   
   ipconfig( 'new_ip', 'new_subnet', 'new_gateway' )
   
     $t->ipconfig( '10.0.1.5', '255.255.255.0', '10.0.1.1' );
   
   =cut
   
   sub ipconfig {
       my $self = shift;
   
       my $string = join $SPACE, 'ipconfig', @_;
   
       if ( @_ == 3 ) {
           $self->print($string);
           my @lines = $self->waitfor( Match => '/save\s+and\s+activate/', );
           $self->print('y');
   
           $self->logged_in(0);
           $self->is_connected(0);
   
           foreach my $line (@lines) {
               if ( $line =~ s/New \s configuration:\s+//xms ) {
                   return _decode_lines($line);
               }
           }
   
           return {};
       }
   
       # ipconfig [ <new ip> <new subnet> <new gateway> ]
       return $self->cmd( String => $string, expect => $success );
   }
   
   =pod
   
   =head2 B<su_ipconfig> - Change IP configuration on SUs connected to the AP.
   
   su_ipconfig( 'suid', 'new_ip', 'new_subnet', 'new_gateway' )
   
     $t->su_ipconfig( 5, '10.0.1.5', '255.255.255.0', '10.0.1.1' );
   
   =cut
   
   sub su_ipconfig {
       my $self = shift;
   
       my $suid        = shift;
       my $new_ip      = shift;
       my $new_subnet  = shift;
       my $new_gateway = shift;
   
       if ( $suid =~ /\D/ ) {
           $self->last_error("Invalid suid '$suid'");
           return;
       }
       unless ($new_ip) {
           $self->last_error("no new_ip passed");
           return;
       }
       unless ($new_subnet) {
           $self->last_error("no new_subnet passed");
           return;
       }
       unless ($new_gateway) {
           $self->last_error("no new_gateway passed");
           return;
       }
   
       # su ipconfig <suid> <new ip> <new subnet> <new gateway>
       return $self->cmd(
           String => 'su ipconfig '
               . $suid
               . $SPACE
               . $new_ip
               . $SPACE
               . $new_subnet
               . $SPACE
               . $new_gateway,
           expect => $success,
       );
   }
   
   =pod
   
   =head2 B<sudb_view> - Returns the output from the sudb view command
   
   returns a reference to an array of hashes each containing these keys
   'suid', 'su2su', 'type', 'cir', 'mir' and 'mac'
   
   =cut
   
   sub sudb_view {
       my $self = shift;
   
       my $lines = $self->cmd( String => 'sudb view', expect => $success ) || [];
   
       return unless @{$lines};
   
       my $s = *$self->{net_telnet_trango};
       return $lines if !$s->{'Decode'};
   
       my @sus;
       foreach ( @{$lines} ) {
           next unless $_;
           if (/^
               \[(\d+)\]
               \s+
               [[:xdigit:]]{2}
               ([[:xdigit:]])
               ([[:xdigit:]])
               \s+
               (\d+)
               \s+
               (\d+)
               \s+
               ([[:xdigit:]\s]+)
           $/ixms
               )
           {
               my %s = (
                   suid  => $1,
                   su2su => $2 ? $2 : undef,
                   type  => $3 == 1 ? 'reg' : $3 == 5 ? 'pri' : $3,
                   cir   => $4,
                   mir   => $5,
                   mac   => $6,
               );
   
               $s{'mac'} =~ s/\s//gxms;
               $s{'mac'} = uc( $s{'mac'} );
   
               push @sus, \%s;
           }
       }
   
       return \@sus;
   }
   
   =pod
   
   =head2 B<sudb_add> - Adds an su to the sudb
   
   Takes the following paramaters
   
       suid : numeric,
       type : (reg|pr)
       cir  : numeric,
       mir  : numeric,
       mac  : Almost any format, it will be reformatted,
   
   and returns true on success or undef otherwise.
   
     $t->sudb_add($suid, 'reg', $cir, $mir, $mac);
   
   You should save_sudb() after calling this, or your changes  will be lost
   when the AP is rebooted.
   
   =cut
   
   sub sudb_add {
       my $self = shift;
       my $suid = shift;
       my $type = shift;
       my $cir  = shift;
       my $mir  = shift;
       my $mac  = shift;
   
       if ( $suid =~ /\D/ ) {
           $self->last_error("Invalid suid '$suid'");
           return;
       }
   
       unless ( lc($type) eq 'reg' || lc($type) eq 'pr' ) {
           $self->last_error("Invalid type '$type'");
           return;
       }
   
       if ( $cir =~ /\D/ ) {
           $self->last_error("Invalid CIR '$cir'");
           return;
       }
   
       if ( $mir =~ /\D/ ) {
           $self->last_error("Invalid MIR '$mir'");
           return;
       }
   
       my $new_mac = $mac;
       $new_mac =~ s/[^0-9A-Fa-f]//g;
       unless ( length $new_mac == 12 ) {
           $self->last_error("Invalid MAC '$mac'");
           return;
       }
       $new_mac = join $SPACE, $new_mac =~ /../g;
   
       my $string
           = 'sudb add '
           . $suid
           . $SPACE
           . $type
           . $SPACE
           . $cir
           . $SPACE
           . $mir
           . $SPACE
           . $new_mac;
   
       return $self->cmd( String => $string, expect => $success );
   }
   
   =pod
   
   =head2 B<sudb_delete> - removes an su from the sudb
   
   Takes either 'all' or the  suid of the su to delete
   and returns true on success or undef otherwise.
   
     $t->sudb_delete($suid);
   
   You should save_sudb() after calling this, or your changes  will be lost
   when the AP is rebooted.
   
   =cut
   
   sub sudb_delete {
       my $self = shift;
       my $suid = shift;
   
       #if (lc($suid) ne 'all' || $suid =~ /\D/) {
       if ( $suid =~ /\D/ ) {
           $self->last_error("Invalid suid '$suid'");
           return;
       }
   
       return $self->cmd( String => 'sudb delete ' . $suid, expect => $success );
   }
   
   =pod
   
   =head2 B<sudb_modify> - changes the su information in the sudb
   
   Takes either the  suid of the su to change
   as well as what you are changing, either "cir, mir or su2su"
   and returns true on success or undef otherwise.
   
   cir and mir also take a value to set the cir/mir to.
   
   su2su takes a group id parameter that is in hex.
   
     $t->sudb_modify($suid, 'cir', 512);
   
   You should save_sudb() after calling this, or your changes  will be lost
   when the AP is rebooted.
   
   =cut
   
   sub sudb_modify {
       my $self  = shift;
       my $suid  = shift;
       my $opt   = shift;
       my $value = shift;
   
       if ( $suid =~ /\D/ ) {
           $self->last_error("Invalid suid '$suid'");
           return;
       }
   
       if ( lc($opt) eq 'cir' or lc($opt) eq 'mir' ) {
           if ( $value =~ /\D/ ) {
               $self->last_error("Invalid $opt '$value'");
               return;
           }
       }
       elsif ( lc($opt) eq 'su2su' ) {
           if ( $value =~ /[^0-9A-Za-f]/ ) {
               $self->last_error("Invalid MAC '$value'");
               return;
           }
       }
       else {
           $self->last_error("Invalid option '$opt'");
           return;
       }
   
       my $string = 'sudb modify ' . $suid . $SPACE . $opt . $SPACE . $value;
   
       return $self->cmd( String => $string, expect => $success );
   }
   
   =pod
   
   =head2 B<enable_tftpd> - enable the TFTP server
   
   runs C<tftpd(args =E<gt> 'on')> and makes sure that Tftpd is now 'listen'ing
   
   =cut
   
   sub enable_tftpd {
       my $self = shift;
   
       my $vals = $self->tftpd( args => 'on' );
   
       if ( ref $vals eq 'HASH' && $vals->{'Tftpd'} eq 'listen' ) {
           return $vals;
       }
       else {
           return;
       }
   }
   
   =pod
   
   =head2 B<disable_tftpd> - disable the TFTP server
   
   runs C<tftpd(args =E<gt> 'off')> and makes sure that Tftpd is now 'disabled'
   
   =cut
   
   sub disable_tftpd {
       my $self = shift;
   
       my $vals = $self->tftpd( args => 'off' );
   
       if ( ref $vals eq 'HASH' && $vals->{'Tftpd'} eq 'disabled' ) {
           return $vals;
       }
       else {
           return;
       }
   }
   
   =pod
   
   =head2 B<cmd> - runs a command on the AP.
   
   This does most of the work.  At the heart, it calls Net::Telnet::cmd()
   but it also does some special stuff for Trango.
   
   Normally returns the last lines from from the command
   
   If you are using this, rather than one of the "easy" methods above,
   you probably want to read through the source of this module to see how
   some of the other commands are called.
   
   In addition to the Net::Telnet::cmd() options, it also accepts these:
   
   I<decode>
   - if this is true, then it will send the output lines to _decode_lines()
   and then returns the decoded output
   
   I<no_prompt>
   - if this is true, it does not wait for a prompt, so you are not stuck
   waiting for something that will never happen.
   
   I<cmd_disconnects>
   - if this is true, it then sets logged_in() to false, then it will
   close() the connection and set is_connected() to false
   
   I<expect>
   - 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
   
   I<args>
   - a string containing the command line options that are passed to the
   command
   
       $t->cmd( String => 'exit', no_prompt => 1, cmd_disconnects => 1 );
   
   =cut
   
   sub cmd {
       my $self = shift;
       my $s    = *$self->{net_telnet_trango};
   
       my @valid_net_telnet_opts = qw(
           String
           Output
           Cmd_remove_mode
           Errmode
           Input_record_separator
           Ors
           Output_record_separator
           Prompt
           Rs
           Timeout
       );
   
       my %cfg;
       if ( @_ == 1 ) {
           $cfg{'String'} = shift;
       }
       elsif ( @_ > 1 ) {
           %cfg = @_;
       }
   
       $cfg{'Timeout'} ||= $self->Timeout;
   
       unless ( $cfg{'String'} ) {
           $self->last_error("No command passed");
           return;
       }
   
       unless ( $self->is_connected ) {
           $self->last_error("Not connected");
           return;
       }
   
       unless ( $self->logged_in ) {
           $self->last_error("Not logged in");
           return;
       }
   
       my %cmd;
       foreach (@valid_net_telnet_opts) {
           if ( exists $cfg{$_} ) {
               $cmd{$_} = $cfg{$_};
           }
       }
       if ( $cfg{'args'} ) {
           $cmd{'String'} .= $SPACE . $cfg{'args'};
       }
   
       #print "Running cmd $cmd{String}\n";
       my @lines;
       if ( $cfg{'no_prompt'} ) {
           $self->print( $cmd{'String'} );
           @lines = $self->lastline;
       }
       else {
           @lines = $self->SUPER::cmd(%cmd);
       }
   
       $self->last_lines( \@lines );
   
       my $last   = $self->lastline;
       my $prompt = $self->prompt;
       $prompt =~ s{^/}{}xms;
       $prompt =~ s{/[gixms]*$}{}xms;
       while ( @lines && $last =~ qr($prompt) ) {
           pop @lines;
           $last = $lines[-1];
       }
       $self->last_error($EMPTY);
   
       my $vals = 1;
       if ( $s->{'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' ) {
               $vals = _decode_maclist(@lines);
               if ( !$vals ) {
                   $self->last_error("Error decoding maclist");
               }
           }
           elsif ( $cfg{'decode'} eq 'linktest' ) {
               $vals = _decode_linktest(@lines);
               if ( !$vals ) {
                   $self->last_error("Error decoding linktest");
               }
           }
           elsif ( $cfg{'decode'} eq 'freq' ) {
               $vals = _decode_freq(@lines);
           }
           else {
               $vals = _decode_lines(@lines);
           }
       }
       if ( ref $vals eq 'HASH' ) {
           $vals->{_raw} = join q{}, @lines;
       }
       $self->last_vals($vals);
   
       if ( ( not $cfg{'expect'} ) || $last =~ /$cfg{'expect'}$/ ) {
           if ( $cfg{'cmd_disconnects'} ) {
               $self->logged_in(0);
               $self->close;
               $self->is_connected(0);
           }
   
           if ( $s->{'Decode'} && $cfg{'decode'} ) {
               return $vals;
           }
           else {
               return \@lines;
           }
       }
       else {
           my $err;
           if ( grep {/\[ERR\]/} @lines ) {
               $err = _decode_lines(@lines);
           }
   
           if ( ref $err eq 'HASH' && $err->{ERR} ) {
               $self->last_error( $err->{ERR} );
           }
           else {
               $self->last_error("Error with command ($cmd{'String'}): $last");
           }
           return;
       }
   }
   
   #=item _decode_lines
   
   sub _decode_lines {
       my @lines = @_;
   
       my %conf;
   
       my $key = $EMPTY;
       my $val = undef;
       my @vals;
       my $in_key = 0;
       my $in_val = 1;
   
   LINE: while ( my $line = shift @lines ) {
           next LINE if $line =~ /$success\Z/;
           next LINE if $line =~ /^ \*+ \s+ \d+ \s+ \*+ \Z/xms;
   
           # Special decode for sysinfo on a TrangoLink 45
           if ( $line =~ /^(.* Channel \s+ Table):\s*(.*)\Z/xms ) {
               my $key  = $1;
               my $note = $2;
   
               my %vals;
               while ( $line = shift @lines ) {
                   if ( $line =~ /^\Z/ ) {
                       $conf{$key} = \%vals;
                       $conf{$key}{note} = $note;
                       next LINE;
                   }
   
                   my $decoded = _decode_lines($line);
                   if ($decoded) {
                       %vals = ( %vals, %{$decoded} );
                   }
               }
           }
   
           # Another special decode for the TrangoLink
           elsif (
               $line =~ /^
               RF \s Band \s \#
               (\d+) \s+
               \( ([^\)]+) \) \s*
               (.*)$
           /xms
               )
           {
               my $num   = $1;
               my $band  = $2;
               my $extra = $3;
   
               if ( $extra =~ /\[/ ) {
                   my $decoded = _decode_lines($extra);
                   $conf{'RF Band'}{$num} = $decoded;
               }
               else {
                   $conf{'RF Band'}{$num}{$extra} = 1;
               }
               next LINE;
           }
   
           my @chars = split //, $line;
   
           my $last_key = $EMPTY;
           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 . $SPACE . $key;
                       }
   
                       $conf{$key} = $val;
                       $last_key   = $key;
                       $key        = $EMPTY;
                   }
                   elsif ($val) {
                       push @vals, $val;
                   }
                   $val = $EMPTY;
   
               }
               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;
       }
   
       foreach my $val (@vals) {
           if ( defined $val && length $val ) {
               $val =~ s/^\s+//;
               $val =~ s/\s+\.*$//;
           }
       }
   
       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 && length $decoded;
       }
       return \@decoded;
   }
   
   #=item _decode_linktest
   
   sub _decode_linktest {
       my @lines = @_;
       my %decoded;
       foreach my $line (@lines) {
   
           if ( $line =~ s/^(\d+) \s+ //xms ) {
               my $line_id = $1;
               my ( $tm, $rt );
               if ( $line =~ s/\s+ (\d+ \s+ \w+) \s* $//xms ) {
                   $rt = $1;
               }
               if ( $line =~ s/\s+ (\d+ \s+ \w+) \s* $//xms ) {
                   $tm = $1;
               }
   
               my $d = _decode_lines( $line . "\n" );
               $decoded{tests}[$line_id]         = $d;
               $decoded{tests}[$line_id]{'time'} = $tm;
               $decoded{tests}[$line_id]{rate}   = $rt;
           }
   
           else {
               my $d = _decode_lines( $line . "\n" );
               if ($d) {
                   while ( my ( $k, $v ) = each %{$d} ) {
                       $decoded{$k} = $v;
                   }
               }
           }
   
       }
       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 {
           return;
       }
   }
   
   #=item _decode_freq
   
   sub _decode_freq {
       my @lines   = @_;
       my $decoded = _decode_lines(@lines);
   
       if ( $decoded && $decoded->{ERR} ) {
           return $decoded;
       }
   
   LINE: foreach my $line (@lines) {
           if (my ( $channel, $polarity, $freq )
               = $line =~ /
               Ch \s+ \#(\d+)
               \s+
               (\w+)
               \s+
               \[ (\d+) \s+ MHz\]
           /ixms
               )
           {
               $decoded = {
                   channel   => $channel,
                   polarity  => $polarity,
                   frequency => $freq,
               };
               last LINE;
           }
       }
       return $decoded;
   }
   
   1;    # End of Net::Telnet::Trango
   __END__
   
   =head1 SEE ALSO
   
   Trango Documentation -
   L<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 SUPPORT
   
   You can find documentation for this module with the perldoc command.
   
       perldoc Net::Telnet::Trango
   
   You can also look for information at:
   
   =over 4
   
   =item * AnnoCPAN: Annotated CPAN documentation
   
   L<http://annocpan.org/dist/Net-Telnet-Trango>
   
   =item * CPAN Ratings
   
   L<http://cpanratings.perl.org/d/Net-Telnet-Trango>
   
   =item * RT: CPAN's request tracker
   
   L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Net-Telnet-Trango>
   
   =item * Search CPAN
   
   L<http://search.cpan.org/dist/Net-Telnet-Trango>
   
   =back
   
   =head1 COPYRIGHT AND LICENSE
   
   Copyright (C) 2005,2006,2007 by Andrew Fresh
   
   This program is free software; you can redistribute it and/or modify it
   under the same terms as Perl itself.
   
   =cut
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