SystemConfiguration.fproj/SCPList.c

   1 /*
   2  * Copyright (c) 2000-2005, 2016 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * Modification History
  26  *
  27  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  28  * - public API conversion
  29  *
  30  * November 9, 2000             Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include "SCPreferencesInternal.h"
  35
  36 CFArrayRef
  37 SCPreferencesCopyKeyList(SCPreferencesRef prefs)
  38 {
  39         CFAllocatorRef          allocator;
  40         CFArrayRef              keys;
  41         SCPreferencesPrivateRef prefsPrivate    = (SCPreferencesPrivateRef)prefs;
  42         CFIndex                 prefsCnt;
  43         const void **           prefsKeys;
  44
  45         if (prefs == NULL) {
  46                 /* sorry, you must provide a session */
  47                 _SCErrorSet(kSCStatusNoPrefsSession);
  48                 return NULL;
  49         }
  50
  51         __SCPreferencesAccess(prefs);
  52
  53         allocator = CFGetAllocator(prefs);
  54         prefsCnt  = CFDictionaryGetCount(prefsPrivate->prefs);
  55         if (prefsCnt > 0) {
  56                 prefsKeys = CFAllocatorAllocate(allocator, prefsCnt * sizeof(CFStringRef), 0);
  57                 CFDictionaryGetKeysAndValues(prefsPrivate->prefs, prefsKeys, NULL);
  58                 keys = CFArrayCreate(allocator, prefsKeys, prefsCnt, &kCFTypeArrayCallBacks);
  59                 CFAllocatorDeallocate(allocator, prefsKeys);
  60         } else {
  61                 keys = CFArrayCreate(allocator, NULL, 0, &kCFTypeArrayCallBacks);
  62         }
  63
  64         return keys;
  65 }