NAME

       Net::DNS::Resolver::Recurse - DNS recursive resolver

SYNOPSIS

           use Net::DNS::Resolver::Recurse;

           $resolver = new Net::DNS::Resolver::Recurse();

           $packet = $resolver->query ( 'www.example.com', 'A' );
           $packet = $resolver->search( 'www.example.com', 'A' );
           $packet = $resolver->send  ( 'www.example.com', 'A' );

DESCRIPTION

       This module is a subclass of Net::DNS::Resolver.

METHODS

       This module inherits almost all the methods from Net::DNS::Resolver.  Additional module-specific methods
       are described below.

   hints
       This method specifies a list of the IP addresses of nameservers to be used to discover the addresses of
       the root nameservers.

           $resolver->hints(@ip);

       If no hints are passed, the priming query is directed to nameservers drawn from a built-in list of IP
       addresses.

   query, search, send
       The query(), search() and send() methods produce the same result as their counterparts in
       Net::DNS::Resolver.

           $packet = $resolver->send( 'www.example.com.', 'A' );

       Server-side recursion is suppressed by clearing the recurse flag in query packets and recursive name
       resolution is performed explicitly.

       The query() and search() methods are inherited from Net::DNS::Resolver and invoke send() indirectly.

   callback
       This method specifies a code reference to a subroutine, which is then invoked at each stage of the
       recursive lookup.

       For example to emulate dig's "+trace" function:

           my $coderef = sub {
               my $packet = shift;

               printf ";; Received %d bytes from %s\n\n",
                       $packet->answersize, $packet->answerfrom;
           };

           $resolver->callback($coderef);

       The callback subroutine is not called for queries for missing glue records.

ACKNOWLEDGEMENT

       This package is an improved and compatible reimplementation of the Net::DNS::Resolver::Recurse.pm created
       by Rob Brown in 2002, whose contribution is gratefully acknowledged.

COPYRIGHT

       Copyright (c)2014 Dick Franks.

       Portions Copyright (c)2002 Rob Brown.

       All rights reserved.

LICENSE

       Permission to use, copy, modify, and distribute this software and its documentation for any purpose and
       without fee is hereby granted, provided that the above copyright notice appear in all copies and that
       both that copyright notice and this permission notice appear in supporting documentation, and that the
       name of the author not be used in advertising or publicity pertaining to distribution of the software
       without specific prior written permission.

       THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
       LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO
       EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
       IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
       THE USE OR OTHER DEALINGS IN THE SOFTWARE.

SEE ALSO

       Net::DNS::Resolver