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Net::SNPP::Server(3pm)User Contributed Perl DocumentatioNet::SNPP::Server(3pm)

       Net::SNPP::Server - SNPP server library

       An object interface for creating SNPP servers.  Almost everything you
       need to create your very own SNPP server is here in this module.  There
       is a callback() method that can replace default function with your own.
       them.  Any SNPP command can be overridden or new/custom ones can be
       created using custom_command().  To disable commands you just don't
       want to deal with, use disable_command().

       There may be a synopsis here someday ...

           Create a Net::SNPP::Server object listening on a port.  By default,
           it only listens on the localhost ( - specify MultiHomed
           to listen on all addresses or LocalAddr to listen on only one.

            my $svr = Net::SNPP::Server->new(
               Port       => port to listen on
               BindTo     => interface address to bind to
               MultiHomed => listen on all interfaces if true (and BindTo is unset)
               Listen     => how many simultaneous connections to handle (SOMAXCONN)
               # the following two options are only used by handle_client()
               MaxErrors  => maximum number of errors before disconnecting client
               Timeout    => timeout while waiting for data (uses SIGARLM)

           Calls accept() for you and returns a client handle.  This method
           will block if there is no waiting client.  The handle returned is a
           subclass of IO::Handle, so all IO::Handle methods should work.
            my $client = $server->client();

           Return the IP address associated with a client handle.
            printf "connection from %s", $client->ip();

           Returns the raw socket handle.  This mainly exists for use with
           select() or IO::Select.
            my $select = IO::Select->new();
            $select->add( $server->socket() );

           For use with a client handle.  True if server socket is still

           Shuts down the server socket.

           Insert a callback into
            $server->callback( 'process_page', \&my_function );
            $server->callback( 'validate_pager_id', \&my_function );
            $server->callback( 'validate_pager_pin', \&my_function );
            $server->callback( 'write_log',    \&my_function );
            $server->callback( 'create_id_and_pin', \&my_function );

           process_page( $PAGER_ID, \%PAGE, \@RESULTS )
             $PAGER_ID = [
                0 => retval of validate_pager_id
                1 => retval of validate_pager_pin ] $PAGE = {
                mess => $,
                responses => [], }

           validate_pager_id( PAGER_ID )
             The return value of this callback will be saved as the pager id
             that is passed to the process_page callback as the first list
             element of the first argument.

           validate_pager_pin( VALIDATED_PAGER_ID, PIN )
             The value returned by this callback will be saved as the second
             list element in the first argument to process_page.  The PAGER_ID
             input to this callback is the output from the validate_pager_id

             NOTE: If you really care about the PIN, you must use this call-
             back.  The default callback will return 1 if the pin is not set.

             First argument is a Unix syslog level, such as "warning" or
             "info."  The rest of the arguments are the message.  Return value
             is ignored.

             Create an ID and PIN for a 2way message.

           Create a custom command or override a default command in han-
           dle_client().  The command name must be 4 letters or numbers.  The
           second argument is a coderef that should return a text command,
           i.e. "250 OK" and some "defined" value to continue the client loop.
           +++If no value is set, the client will be disconnected after exe-
           cuting your command.+++ If you need MSTA or KTAG, this is the hook
           you need to implement them.

           The subroutine will be passed the command arguments, split on

            sub my_MSTA_sub {
               my( $id, $password ) = @_;
               # ...
               return "250 OK", 1;
            $server->custom_command( "MSTA", \&my_MSTA_sub );

           Specify a command to disable in the server.  This is useful, for
           instance, if you don't want to support level 3 commands.
            $server->disable_command( "2WAY", "550 2WAY not supported here" );

           The second argument is an optional custom error message.  The
           default is:
            "500 Command Not Implemented, Try Again"

           Takes the result of $server->client() and takes care of parsing the
           user input.   This should be quite close to being rfc1861 compli-
           ant.  If you specified Timeout to be something other than 0 in
           new(), SIGARLM will be used to set a timeout.  If you use this,
           make sure to take signals into account when writing your code.
           fork()'ing before calling handle_client is a good way to avoid
           interrupting code that shouldn't be interrupted.

           Creates a server in a forked process.  The return value is an array
           (or arrayref depending on context) containing a read-only pipe and
           the pid of the new process.  Pages completed will be written to the
           pipe as a semicolon delimited array.
            my($pipe,$pid) = $server->forked_server();
            my $line = $pipe->getline();
            chomp( $line );
            my( $pgr, $pgr, %pagedata ) = split( /;/, $line );

       Al Tobey <>

       Some ideas from Sendpage::SNPPServer
        Kees Cook <>

       Add more hooks for callbacks

       Implement the following level 2 and level 3 commands

        4.5.1 LOGIn <loginid> [password]
        4.5.3 LEVEl <ServiceLevel>
        4.5.5 COVErage <AlternateArea>
        4.5.7 CALLerid <CallerID>
        4.6.3 EXPTag <hours>
        4.6.5 ACKRead <0|1>
        4.6.6 RTYPe <Reply_Type_Code>

       Net::Cmd Socket

perl v5.8.8                       2008-02-04            Net::SNPP::Server(3pm)

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