configd.tproj/_configlist.c

   1 /*
   2  * Copyright (c) 2000-2004, 2006-2008 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 #include "pattern.h"
  37
  38 #define N_QUICK 64
  39
  40 __private_extern__
  41 int
  42 __SCDynamicStoreCopyKeyList(SCDynamicStoreRef store, CFStringRef key, Boolean isRegex, CFArrayRef *subKeys)
  43 {
  44         SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
  45         CFMutableArrayRef               keyArray;
  46         CFIndex                         storeCnt;
  47         CFStringRef                     storeStr;
  48         CFDictionaryRef                 storeValue;
  49
  50         if ((store == NULL) || (storePrivate->server == MACH_PORT_NULL)) {
  51                 return kSCStatusNoStoreSession; /* you must have an open session to play */
  52         }
  53
  54         if (isRegex) {
  55                 *subKeys = patternCopyMatches(key);
  56                 return (*subKeys != NULL) ? kSCStatusOK : kSCStatusFailed;
  57         }
  58
  59         storeCnt = CFDictionaryGetCount(storeData);
  60         keyArray = CFArrayCreateMutable(NULL, storeCnt, &kCFTypeArrayCallBacks);
  61         if (storeCnt > 0) {
  62                 int             i;
  63                 const void *    storeKeys_q[N_QUICK];
  64                 const void **   storeKeys       = storeKeys_q;
  65                 const void *    storeValues_q[N_QUICK];
  66                 const void **   storeValues     = storeValues_q;
  67
  68                 if (storeCnt > (CFIndex)(sizeof(storeKeys_q) / sizeof(CFStringRef))) {
  69                         storeKeys   = CFAllocatorAllocate(NULL, storeCnt * sizeof(CFStringRef), 0);
  70                         storeValues = CFAllocatorAllocate(NULL, storeCnt * sizeof(CFStringRef), 0);
  71                 }
  72
  73                 CFDictionaryGetKeysAndValues(storeData, storeKeys, storeValues);
  74                 for (i = 0; i < storeCnt; i++) {
  75                         storeStr   = (CFStringRef)storeKeys[i];
  76                         storeValue = (CFDictionaryRef)storeValues[i];
  77                         /*
  78                          * only return those keys which are prefixed by the
  79                          * provided key string and have data.
  80                          */
  81                         if (((CFStringGetLength(key) == 0) || CFStringHasPrefix(storeStr, key)) &&
  82                             CFDictionaryContainsKey(storeValue, kSCDData)) {
  83                                 CFArrayAppendValue(keyArray, storeStr);
  84                         }
  85                 }
  86
  87                 if (storeKeys != storeKeys_q) {
  88                         CFAllocatorDeallocate(NULL, storeKeys);
  89                         CFAllocatorDeallocate(NULL, storeValues);
  90                 }
  91         }
  92
  93         *subKeys = CFArrayCreateCopy(NULL, keyArray);
  94         CFRelease(keyArray);
  95         return kSCStatusOK;
  96 }
  97
  98
  99 __private_extern__
 100 kern_return_t
 101 _configlist(mach_port_t                 server,
 102             xmlData_t                   keyRef,         /* raw XML bytes */
 103             mach_msg_type_number_t      keyLen,
 104             int                         isRegex,
 105             xmlDataOut_t                *listRef,       /* raw XML bytes */
 106             mach_msg_type_number_t      *listLen,
 107             int                         *sc_status
 108 )
 109 {
 110         CFStringRef             key             = NULL;         /* key  (un-serialized) */
 111         serverSessionRef        mySession;
 112         Boolean                 ok;
 113         CFArrayRef              subKeys;                        /* array of CFStringRef's */
 114
 115         *listRef = NULL;
 116         *listLen = 0;
 117
 118         /* un-serialize the key */
 119         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 120                 *sc_status = kSCStatusFailed;
 121                 goto done;
 122         }
 123
 124         if (!isA_CFString(key)) {
 125                 *sc_status = kSCStatusInvalidArgument;
 126                 goto done;
 127         }
 128
 129         mySession = getSession(server);
 130         if (mySession == NULL) {
 131                 *sc_status = kSCStatusNoStoreSession;   /* you must have an open session to play */
 132                 goto done;
 133         }
 134
 135         *sc_status = __SCDynamicStoreCopyKeyList(mySession->store, key, isRegex != 0, &subKeys);
 136         if (*sc_status != kSCStatusOK) {
 137                 goto done;
 138         }
 139
 140         /* serialize the list of keys */
 141         ok = _SCSerialize(subKeys, NULL, (void **)listRef, (CFIndex *)listLen);
 142         CFRelease(subKeys);
 143         if (!ok) {
 144                 *sc_status = kSCStatusFailed;
 145                 goto done;
 146         }
 147
 148     done :
 149
 150         if (key)        CFRelease(key);
 151         return KERN_SUCCESS;
 152 }