SystemConfiguration.fproj/SCPApply.c

   1 /*
   2  * Copyright(c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1(the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24  * Modification History
  25  *
  26  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  27  * - public API conversion
  28  *
  29  * November 9, 2000             Allan Nathanson <ajn@apple.com>
  30  * - initial revision
  31  */
  32
  33 #include <SystemConfiguration/SystemConfiguration.h>
  34 #include <SystemConfiguration/SCPrivate.h>
  35 #include "SCPreferencesInternal.h"
  36
  37 Boolean
  38 SCPreferencesApplyChanges(SCPreferencesRef session)
  39 {
  40         SCPreferencesPrivateRef sessionPrivate  = (SCPreferencesPrivateRef)session;
  41         Boolean                 wasLocked;
  42
  43         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("SCPreferencesApplyChanges:"));
  44
  45         /*
  46          * Determine if the we have exclusive access to the preferences
  47          * and acquire the lock if necessary.
  48          */
  49         wasLocked = sessionPrivate->locked;
  50         if (!wasLocked) {
  51                 if (!SCPreferencesLock(session, TRUE)) {
  52                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  SCPreferencesLock() failed"));
  53                         return FALSE;
  54                 }
  55         }
  56
  57         if (!sessionPrivate->isRoot) {
  58                 /* CONFIGD REALLY NEEDS NON-ROOT WRITE ACCESS */
  59                 goto perUser;
  60         }
  61
  62         /* if necessary, create the session "apply" key */
  63         if (sessionPrivate->sessionKeyApply == NULL) {
  64                 sessionPrivate->sessionKeyApply = _SCPNotificationKey(NULL,
  65                                                                       sessionPrivate->prefsID,
  66                                                                       sessionPrivate->perUser,
  67                                                                       sessionPrivate->user,
  68                                                                       kSCPreferencesKeyApply);
  69         }
  70
  71         /* post notification */
  72         if (!SCDynamicStoreNotifyValue(sessionPrivate->session,
  73                                        sessionPrivate->sessionKeyApply)) {
  74                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  SCDynamicStoreNotifyValue() failed"));
  75                 _SCErrorSet(kSCStatusFailed);
  76                 goto error;
  77         }
  78
  79     perUser :
  80
  81         if (!wasLocked) (void) SCPreferencesUnlock(session);
  82         return TRUE;
  83
  84     error :
  85
  86         if (!wasLocked) (void) SCPreferencesUnlock(session);
  87         return FALSE;
  88 }