NAME

       Net::DNS::RR::SVCB - DNS SVCB resource record

SYNOPSIS

           use Net::DNS;
           $rr = Net::DNS::RR->new('name HTTPS SvcPriority TargetName SvcParams');

DESCRIPTION

       DNS Service Binding (SVCB) resource record

       Service binding and parameter specification via the DNS (SVCB and HTTPS RRs)

METHODS

       The available methods are those inherited from the base class augmented by the type-
       specific methods defined in this package.

       Use of undocumented package features or direct access to internal data structures is
       discouraged and could result in program termination or other unpredictable behaviour.

   SvcPriority
           $svcpriority = $rr->svcpriority;
           $rr->svcpriority( $svcpriority );

       The priority of this record (relative to others, with lower values preferred).  A value of
       0 indicates AliasMode.

   TargetName
           $rr->targetname( $targetname );
           $effecivetarget = $rr->targetname;

       The domain name of either the alias target (for AliasMode) or the alternative endpoint
       (for ServiceMode).

       For AliasMode SVCB RRs, a TargetName of "." indicates that the service is not available or
       does not exist.

       For ServiceMode SVCB RRs, a TargetName of "." indicates that the owner name of this record
       must be used as the effective TargetName.

   mandatory, alpn, no-default-alpn, port, ipv4hint, ech, ipv6hint
           $rr = Net::DNS::RR->new( 'svcb.example. SVCB 1 svcb.example. port=1234' );

           $rr->port(1234);
           $string = $rr->port();      # \004\210
           $rr->key3($string);

       Constructor methods for mnemonic SvcParams defined in draft-ietf-dnsop-svcb-https.  When
       invoked without arguments, the methods return the presentation format value for the
       underlying key.  The behaviour with undefined arguments is not specified.

   keyNN
           $keynn = $rr->keyNN;
           $rr->keyNN( $keynn );
           $rr->keyNN( undef );

       Generic constructor and accessor methods for SvcParams.  The key index NN is a decimal
       integer in the range 0 .. 65535.  The method argument and returned value are both
       presentation format strings.  The method returns the undefined value if the key is not
       present.  The specified key will be deleted if the value is undefined.

COPYRIGHT

       Copyright (c)2020-2021 Dick Franks.

       All rights reserved.

       Package template (c)2009,2012 O.M.Kolkman and R.W.Franks.

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 original copyright
       notices appear in all copies and that both 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

       perl, Net::DNS, Net::DNS::RR, draft-ietf-dnsop-svcb-https