David Freedman > Net-ASN > Net::ASN

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NAME ^

Net::ASN - Perl extension for manipulating autonomous system numbers

SYNOPSIS ^

        ##OO implementation (methods)

        use Net::ASN;

        my $asn = Net::ASN->new($ARGV[0]);

        print "type     : " . $asn->gettype     . "\n";
        print "asplain16: " . $asn->toasplain16 . "\n";
        print "asplain32: " . $asn->toasplain   . "\n";
        print "asdot    : " . $asn->toasdot     . "\n";
        print "asdotplus: " . $asn->toasdotplus . "\n";
        print "\n";

        ##Non OO implementation (functions)
        
        use Net::ASN qw(:all);
        
        my $asplain = 12345;

        print "ASN in asdotplus format is " . plaintodotplus($asplain) . "\n";

        my $asdotplus = '1.1';

        print "ASN in asplain format is "   . dotplustoplain($asdotplus) . "\n";

DESCRIPTION ^

Net::ASN provides functions for parsing autonomous system numbers (ASNs) as defined in RFC 1771 and extended by RFC4893, also converting between formats discussed in RFC5396.

Both an OO implementation (method based) and non-OO (function based) are provided for convenience.

METHODS ^

new
        my $asn = Net::ASN->new(1234);          #Automatic parsing
        or
        my $asn = Net::ASN->new(1234,1);        #Parse as ASDOT

Creates a new Net::ASN object, prompting parsing of the supplied parameter, an ASN. Currently, only ASPLAIN and ASDOT+ are automatically recognised as input formats. If you wish to force input as ASDOT you must provide a second argument to the constructor.

gettype
        my $type = $asn->gettype;

Returns the type of ASN the parser assumes it is dealing with.

toasplain
        my $asplain = $asn->toasplain;

Returns the ASPLAIN representation of the parsed ASN

toasplain16
        my $asplain = $asn->toasplain16;

Returns the ASPLAIN representation of the parsed ASN if the ASPLAIN representation is is less than or equal to 65535, else returns AS_TRANS

Use for compabability with 16 bit ASN systems.

toasdot
        my $asdot = $asn->toasdot;

Returns the ASDOT representation of the parsed ASN. If the parsed ASN is ASPLAIN and less than or equal to 65535 then returns the ASPLAIN

toasdotplus
        my $asdotplus = $asn->toasdotplus;

Returns the ASDOT+ representation of the parsed ASN.

FUNCTIONS ^

plaintodot
        my $asdot = plaintodot($asn);

Returns the ASDOT representation of the ASN ($asn) If $asn is ASPLAIN and less than or equal to 65535 then returns the ASPLAIN (Assumes your ASN is in ASPLAIN format)

plaintodotplus
        my $asdotplus = plaintodotplus($asn);

Returns the ASDOT+ representation of the ASN ($asn) (Assumes your ASN is in ASPLAIN format)

dottodotplus
        my $asplain = dottodotplus($asn);

Returns the ASDOT+ representation of the ASN ($asn) (Assumes your ASN is in ASDOT format)

dottoplain
        my $asplain = dottoplain($asn);

Returns the ASPLAIN representation of the ASN ($asn) (Assumes your ASN is in ASDOT format)

dottoplain16
        my $asplain = dottoplain16($asn);

Returns the ASPLAIN representation of the ASN ($asn) if the ASPLAIN representation is is less than or equal to 65535, else returns AS_TRANS (Assumes your ASN is in ASDOT format)

dotplustodot
        my $asdot = dotplustodot($asn);

Returns the ASDOT representation of the ASN ($asn) (Assumes your ASN is in ASDOT+ format)

dotplustoplain
        my $asplain = dotplustoplain($asn);

Returns the ASPLAIN representation of the ASN ($asn) (Assumes your ASN is in ASDOT+ format)

dotplustoplain16
        my $asplain = dotplustoplain16($asn);

Returns the ASPLAIN representation of the ASN ($asn) if the ASPLAIN representation is is less than or equal to 65535, else returns AS_TRANS (Assumes your ASN is in ASDOT+ format)

AUTHOR ^

David J. Freedman <lochii AT convergence DOT cx>

COPYRIGHT ^

Copyright (c) 2008 Convergence Inc. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the terms as perl itself.

SEE ALSO ^

perl(1)

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