configd.tproj/_configlist.c

   1 /*
   2  * Copyright (c) 2000-2004, 2006-2008, 2011 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         CFMutableArrayRef               keyArray;
  45         CFIndex                         storeCnt;
  46         CFStringRef                     storeStr;
  47         CFDictionaryRef                 storeValue;
  48
  49         if (isRegex) {
  50                 *subKeys = patternCopyMatches(key);
  51                 return (*subKeys != NULL) ? kSCStatusOK : kSCStatusFailed;
  52         }
  53
  54         storeCnt = CFDictionaryGetCount(storeData);
  55         keyArray = CFArrayCreateMutable(NULL, storeCnt, &kCFTypeArrayCallBacks);
  56         if (storeCnt > 0) {
  57                 int             i;
  58                 const void *    storeKeys_q[N_QUICK];
  59                 const void **   storeKeys       = storeKeys_q;
  60                 const void *    storeValues_q[N_QUICK];
  61                 const void **   storeValues     = storeValues_q;
  62
  63                 if (storeCnt > (CFIndex)(sizeof(storeKeys_q) / sizeof(CFStringRef))) {
  64                         storeKeys   = CFAllocatorAllocate(NULL, storeCnt * sizeof(CFStringRef), 0);
  65                         storeValues = CFAllocatorAllocate(NULL, storeCnt * sizeof(CFStringRef), 0);
  66                 }
  67
  68                 CFDictionaryGetKeysAndValues(storeData, storeKeys, storeValues);
  69                 for (i = 0; i < storeCnt; i++) {
  70                         storeStr   = (CFStringRef)storeKeys[i];
  71                         storeValue = (CFDictionaryRef)storeValues[i];
  72                         /*
  73                          * only return those keys which are prefixed by the
  74                          * provided key string and have data.
  75                          */
  76                         if (((CFStringGetLength(key) == 0) || CFStringHasPrefix(storeStr, key)) &&
  77                             CFDictionaryContainsKey(storeValue, kSCDData)) {
  78                                 CFArrayAppendValue(keyArray, storeStr);
  79                         }
  80                 }
  81
  82                 if (storeKeys != storeKeys_q) {
  83                         CFAllocatorDeallocate(NULL, storeKeys);
  84                         CFAllocatorDeallocate(NULL, storeValues);
  85                 }
  86         }
  87
  88         *subKeys = CFArrayCreateCopy(NULL, keyArray);
  89         CFRelease(keyArray);
  90         return kSCStatusOK;
  91 }
  92
  93
  94 __private_extern__
  95 kern_return_t
  96 _configlist(mach_port_t                 server,
  97             xmlData_t                   keyRef,         /* raw XML bytes */
  98             mach_msg_type_number_t      keyLen,
  99             int                         isRegex,
 100             xmlDataOut_t                *listRef,       /* raw XML bytes */
 101             mach_msg_type_number_t      *listLen,
 102             int                         *sc_status,
 103             audit_token_t               audit_token)
 104 {
 105         CFStringRef             key             = NULL;         /* key  (un-serialized) */
 106         CFIndex                 len;
 107         serverSessionRef        mySession;
 108         Boolean                 ok;
 109         CFArrayRef              subKeys;                        /* array of CFStringRef's */
 110
 111         *listRef = NULL;
 112         *listLen = 0;
 113
 114         /* un-serialize the key */
 115         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 116                 *sc_status = kSCStatusFailed;
 117                 goto done;
 118         }
 119
 120         if (!isA_CFString(key)) {
 121                 *sc_status = kSCStatusInvalidArgument;
 122                 goto done;
 123         }
 124
 125         mySession = getSession(server);
 126         if (mySession == NULL) {
 127                 mySession = tempSession(server, CFSTR("SCDynamicStoreCopyKeyList"), audit_token);
 128                 if (mySession == NULL) {
 129                         /* you must have an open session to play */
 130                         *sc_status = kSCStatusNoStoreSession;
 131                         goto done;
 132                 }
 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, &len);
 142         *listLen = len;
 143         CFRelease(subKeys);
 144         if (!ok) {
 145                 *sc_status = kSCStatusFailed;
 146                 goto done;
 147         }
 148
 149     done :
 150
 151         if (key)        CFRelease(key);
 152         return KERN_SUCCESS;
 153 }