mDNSMacOSX/mdns_objects/mdns_xpc.c

   1
   2 /*
   3  * Copyright (c) 2020 Apple Inc. All rights reserved.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     https://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include "mdns_xpc.h"
  19
  20 #include <CoreFoundation/CFXPCBridge.h>
  21 #include <CoreUtils/CoreUtils.h>
  22
  23 //======================================================================================================================
  24 // MARK: - Public Functions
  25
  26 xpc_object_t
  27 mdns_xpc_create_dictionary_from_plist_data(const uint8_t * const bytes, const size_t length, OSStatus * const out_error)
  28 {
  29         xpc_object_t dictionary = NULL;
  30         CFPropertyListRef plist = NULL;
  31         OSStatus err;
  32         CFDataRef data = CFDataCreate(NULL, bytes, (CFIndex)length);
  33         require_action_quiet(data, exit, err = kNoMemoryErr);
  34
  35         plist = CFPropertyListCreateWithData(NULL, data, kCFPropertyListImmutable, NULL, NULL);
  36         ForgetCF(&data);
  37         require_action_quiet(plist, exit, err = kFormatErr);
  38         require_action_quiet(CFGetTypeID(plist) == CFDictionaryGetTypeID(), exit, err = kTypeErr);
  39
  40         dictionary = _CFXPCCreateXPCObjectFromCFObject(plist);
  41         require_action_quiet(dictionary, exit, err = kUnknownErr);
  42
  43         err = kNoErr;
  44
  45 exit:
  46         if (out_error) {
  47                 *out_error = err;
  48         }
  49         ForgetCF(&plist);
  50         return dictionary;
  51 }