configd.tproj/_notifychanges.c

   1 /*
   2  * Copyright (c) 2000-2004, 2006, 2011, 2013, 2015, 2019 Apple 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  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include "configd.h"
  35 #include "session.h"
  36
  37 __private_extern__
  38 int
  39 __SCDynamicStoreCopyNotifiedKeys(SCDynamicStoreRef store, CFArrayRef *notifierKeys)
  40 {
  41         serverSessionRef                mySession;
  42         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  43
  44         mySession = getSession(storePrivate->server);
  45         if (mySession->changedKeys != NULL) {
  46                 *notifierKeys = mySession->changedKeys;
  47                 mySession->changedKeys = NULL;
  48         } else {
  49                 *notifierKeys = CFArrayCreate(NULL, NULL, 0, &kCFTypeArrayCallBacks);
  50         }
  51
  52         return kSCStatusOK;
  53 }
  54
  55
  56 __private_extern__
  57 kern_return_t
  58 _notifychanges(mach_port_t                      server,
  59                xmlDataOut_t                     *listRef,       /* raw XML bytes */
  60                mach_msg_type_number_t           *listLen,
  61                int                              *sc_status
  62 )
  63 {
  64         CFIndex                 len;
  65         serverSessionRef        mySession = getSession(server);
  66         CFArrayRef              notifierKeys;   /* array of CFStringRef's */
  67         Boolean                 ok;
  68
  69         *listRef = NULL;
  70         *listLen = 0;
  71
  72         if (mySession == NULL) {
  73                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
  74                 return KERN_SUCCESS;
  75         }
  76
  77         *sc_status = __SCDynamicStoreCopyNotifiedKeys(mySession->store, &notifierKeys);
  78         if (*sc_status != kSCStatusOK) {
  79                 return KERN_SUCCESS;
  80         }
  81
  82         /* serialize the array of keys */
  83         ok = _SCSerialize(notifierKeys, NULL, (void **)listRef, &len);
  84         *listLen = (mach_msg_type_number_t)len;
  85         CFRelease(notifierKeys);
  86         if (!ok) {
  87                 *sc_status = kSCStatusFailed;
  88                 return KERN_SUCCESS;
  89         }
  90
  91         return KERN_SUCCESS;
  92 }