Net::DNS::Question - DNS question class

use Net::DNS::Question

A Net::DNS::Question object represents a record in the question section of a DNS packet.

    $question = Net::DNS::Question->new("example.com", "MX", "IN");

Creates a question object from the domain, type, and class passed as arguments.

RFC4291 and RFC4632 IP address/prefix notation is supported for queries in in-addr.arpa and ip6.arpa subdomains.

    ($question, $offset) = Net::DNS::Question->parse(\$data, $offset);

Parses a question section record at the specified location within a DNS packet. The first argument is a reference to the packet data. The second argument is the offset within the packet where the question record begins.

Returns a Net::DNS::Question object and the offset of the next location in the packet.

Parsing is aborted if the question object cannot be created (e.g., corrupt or insufficient data).

    print "qname = ", $question->qname, "\n";
    print "zname = ", $question->zname, "\n";

Returns the domain name. In dynamic update packets, this field is known as zname and refers to the zone name.

    print "qtype = ", $question->qtype, "\n";
    print "ztype = ", $question->ztype, "\n";

Returns the record type. In dymamic update packets, this field is known as ztype and refers to the zone type (must be SOA).

    print "qclass = ", $question->qclass, "\n";
    print "zclass = ", $question->zclass, "\n";

Returns the record class. In dynamic update packets, this field is known as zclass and refers to the zone's class.

    $question->print;

Prints the question record on the standard output.

    print $qr->string, "\n";

Returns a string representation of the question record.

    $qdata = $question->data($packet, $offset);

Returns the question record in binary format suitable for inclusion in a DNS packet.

Arguments are a Net::DNS::Packet object and the offset within that packet's data where the Net::DNS::Question record is to be stored. This information is necessary for using compressed domain names.

Copyright (c) 1997-2002 Michael Fuhr.

Portions Copyright (c) 2002-2004 Chris Reinhardt.

Portions Copyright (c) 2003,2006-2009 Dick Franks.

All rights reserved.

This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

perl(1), Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Update, Net::DNS::Header, Net::DNS::RR, RFC 1035 Section 4.1.2