SystemConfiguration.fproj/SCDNotifierAdd.c

   1 /*
   2  * Copyright (c) 2000-2005, 2009-2011, 2013, 2016, 2017 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 "SCDynamicStoreInternal.h"
  35 #include "config.h"             /* MiG generated file */
  36
  37
  38 static void
  39 addKey(CFMutableArrayRef *keysP, CFStringRef key)
  40 {
  41         if (*keysP == NULL) {
  42                 *keysP = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);
  43         }
  44
  45         CFArrayAppendValue(*keysP, key);
  46         return;
  47 }
  48
  49
  50 Boolean
  51 SCDynamicStoreAddWatchedKey(SCDynamicStoreRef store, CFStringRef key, Boolean isRegex)
  52 {
  53         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  54         kern_return_t                   status;
  55         CFDataRef                       utfKey;         /* serialized key */
  56         xmlData_t                       myKeyRef;
  57         CFIndex                         myKeyLen;
  58         int                             sc_status;
  59
  60         if (store == NULL) {
  61                 /* sorry, you must provide a session */
  62                 _SCErrorSet(kSCStatusNoStoreSession);
  63                 return FALSE;
  64         }
  65
  66         if (storePrivate->server == MACH_PORT_NULL) {
  67                 /* sorry, you must have an open session to play */
  68                 _SCErrorSet(kSCStatusNoStoreServer);
  69                 return FALSE;
  70         }
  71
  72         /* serialize the key */
  73         if (!_SCSerializeString(key, &utfKey, (void **)&myKeyRef, &myKeyLen)) {
  74                 _SCErrorSet(kSCStatusFailed);
  75                 return FALSE;
  76         }
  77
  78 #ifdef  VERBOSE_ACTIVITY_LOGGING
  79         os_activity_scope(storePrivate->activity);
  80 #endif  // VERBOSE_ACTIVITY_LOGGING
  81
  82     retry :
  83
  84         /* send the key to the server */
  85         status = notifyadd(storePrivate->server,
  86                            myKeyRef,
  87                            (mach_msg_type_number_t)myKeyLen,
  88                            isRegex,
  89                            (int *)&sc_status);
  90
  91         if (__SCDynamicStoreCheckRetryAndHandleError(store,
  92                                                      status,
  93                                                      &sc_status,
  94                                                      "SCDynamicStoreAddWatchedKey notifyadd()")) {
  95                 goto retry;
  96         }
  97
  98         /* clean up */
  99         CFRelease(utfKey);
 100
 101         if (sc_status != kSCStatusOK) {
 102                 _SCErrorSet(sc_status);
 103                 return FALSE;
 104         }
 105
 106         if (isRegex) {
 107                 addKey(&storePrivate->patterns, key);
 108         } else {
 109                 addKey(&storePrivate->keys, key);
 110         }
 111         return TRUE;
 112 }