SystemConfiguration.fproj/SCPApply.c

   1 /*
   2  * Copyright(c) 2000 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 <SystemConfiguration/SystemConfiguration.h>
  35 #include <SystemConfiguration/SCPrivate.h>
  36 #include "SCPreferencesInternal.h"
  37
  38 Boolean
  39 SCPreferencesApplyChanges(SCPreferencesRef prefs)
  40 {
  41         SCPreferencesPrivateRef prefsPrivate    = (SCPreferencesPrivateRef)prefs;
  42         Boolean                 wasLocked;
  43
  44         if (prefs == NULL) {
  45                 /* sorry, you must provide a session */
  46                 _SCErrorSet(kSCStatusNoPrefsSession);
  47                 return FALSE;
  48         }
  49
  50         /*
  51          * Determine if the we have exclusive access to the preferences
  52          * and acquire the lock if necessary.
  53          */
  54         wasLocked = prefsPrivate->locked;
  55         if (!wasLocked) {
  56                 if (!SCPreferencesLock(prefs, TRUE)) {
  57                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCPreferencesLock() failed"));
  58                         return FALSE;
  59                 }
  60         }
  61
  62         if (!prefsPrivate->isRoot) {
  63                 /* CONFIGD REALLY NEEDS NON-ROOT WRITE ACCESS */
  64                 goto perUser;
  65         }
  66
  67         /* post notification */
  68         if (!SCDynamicStoreNotifyValue(prefsPrivate->session,
  69                                        prefsPrivate->sessionKeyApply)) {
  70                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges SCDynamicStoreNotifyValue() failed"));
  71                 _SCErrorSet(kSCStatusFailed);
  72                 goto error;
  73         }
  74
  75     perUser :
  76
  77         if (!wasLocked) (void) SCPreferencesUnlock(prefs);
  78         return TRUE;
  79
  80     error :
  81
  82         if (!wasLocked) (void) SCPreferencesUnlock(prefs);
  83         return FALSE;
  84 }