configd.tproj/_notifyremove.c

   1 /*
   2  * Copyright (c) 2000-2004, 2006 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  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34
  35 #include "configd.h"
  36 #include "session.h"
  37 #include "pattern.h"
  38
  39
  40 __private_extern__
  41 int
  42 __SCDynamicStoreRemoveWatchedKey(SCDynamicStoreRef store, CFStringRef key, Boolean isRegex, Boolean internal)
  43 {
  44         CFNumberRef                     sessionNum;
  45         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  46
  47         if ((store == NULL) || (storePrivate->server == MACH_PORT_NULL)) {
  48                 return kSCStatusNoStoreSession; /* you must have an open session to play */
  49         }
  50
  51         if (_configd_trace) {
  52                 SCTrace(TRUE, _configd_trace,
  53                         CFSTR("%s : %5d : %s : %@\n"),
  54                         internal ? "*watch-" : "watch- ",
  55                         storePrivate->server,
  56                         isRegex  ? "pattern" : "key",
  57                         key);
  58         }
  59
  60         /*
  61          * remove key from this sessions notifier list after checking that
  62          * it was previously defined.
  63          */
  64         if (isRegex) {
  65                 if (!CFSetContainsValue(storePrivate->patterns, key))
  66                         return kSCStatusNoKey;          /* sorry, key does not exist in notifier list */
  67
  68                 /* remove key from this sessions notifier list */
  69                 CFSetRemoveValue(storePrivate->patterns, key);
  70
  71                 /* remove this session as a pattern watcher */
  72                 sessionNum = CFNumberCreate(NULL, kCFNumberIntType, &storePrivate->server);
  73                 patternRemoveSession(key, sessionNum);
  74                 CFRelease(sessionNum);
  75         } else {
  76                 if (!CFSetContainsValue(storePrivate->keys, key))
  77                         return kSCStatusNoKey;          /* sorry, key does not exist in notifier list */
  78
  79                 /* remove key from this sessions notifier list */
  80                 CFSetRemoveValue(storePrivate->keys, key);
  81
  82                 /*
  83                  * We are watching a specific key. As such, update the
  84                  * store to mark our interest in any changes.
  85                  */
  86                 sessionNum = CFNumberCreate(NULL, kCFNumberIntType, &storePrivate->server);
  87                 _removeWatcher(sessionNum, key);
  88                 CFRelease(sessionNum);
  89         }
  90
  91         return kSCStatusOK;
  92 }
  93
  94
  95 __private_extern__
  96 kern_return_t
  97 _notifyremove(mach_port_t               server,
  98               xmlData_t                 keyRef,         /* raw XML bytes */
  99               mach_msg_type_number_t    keyLen,
 100               int                       isRegex,
 101               int                       *sc_status
 102 )
 103 {
 104         CFStringRef             key             = NULL;         /* key  (un-serialized) */
 105         serverSessionRef        mySession       = getSession(server);
 106
 107         /* un-serialize the key */
 108         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 109                 *sc_status = kSCStatusFailed;
 110                 goto done;
 111         }
 112
 113         if (!isA_CFString(key)) {
 114                 *sc_status = kSCStatusInvalidArgument;
 115                 goto done;
 116         }
 117
 118         if (mySession == NULL) {
 119                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
 120                 goto done;
 121         }
 122
 123         *sc_status = __SCDynamicStoreRemoveWatchedKey(mySession->store,
 124                                                       key,
 125                                                       isRegex != 0,
 126                                                       FALSE);
 127
 128     done :
 129
 130         if (key)        CFRelease(key);
 131         return KERN_SUCCESS;
 132 }
 133