text: /*
   * Copyright (c) 2020-2021 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1.  Redistributions of source code must retain the above copyright notice,
   *     this list of conditions and the following disclaimer.
   * 2.  Redistributions in binary form must reproduce the above copyright notice,
   *     this list of conditions and the following disclaimer in the documentation
   *     and/or other materials provided with the distribution.
   * 3.  Neither the name of Apple Inc. ("Apple") nor the names of its
   *     contributors may be used to endorse or promote products derived from this
   *     software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include "dns_sd_private.h"
  #include "dnssd_ipc.h"
  
  #include <xpc/xpc.h>
  
  xpc_object_t
  DNSServiceGetRetainedResolverDefaults(void);
  
  size_t
  get_required_tlv_length_for_defaults(xpc_object_t defaults);
  
  size_t
  get_required_tlv_length_for_query_attr(const DNSServiceQueryAttr *attr);
  
  void
  put_tlvs_for_defaults(xpc_object_t defaults, ipc_msg_hdr *hdr, uint8_t **ptr, const uint8_t *limit);
  
  void
  put_tlvs_for_query_attr(const DNSServiceQueryAttr *attr, ipc_msg_hdr *hdr, uint8_t **ptr, const uint8_t *limit);
  