SystemConfiguration.fproj/SCDGet.c

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 /*
  27  * Modification History
  28  *
  29  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  30  * - public API conversion
  31  *
  32  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  33  * - initial revision
  34  */
  35
  36 #include <mach/mach.h>
  37 #include <mach/mach_error.h>
  38
  39 #include <SystemConfiguration/SystemConfiguration.h>
  40 #include <SystemConfiguration/SCPrivate.h>
  41 #include "SCDynamicStoreInternal.h"
  42 #include "config.h"             /* MiG generated file */
  43
  44
  45 CFDictionaryRef
  46 SCDynamicStoreCopyMultiple(SCDynamicStoreRef    store,
  47                            CFArrayRef           keys,
  48                            CFArrayRef           patterns)
  49 {
  50         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  51         kern_return_t                   status;
  52         CFDataRef                       xmlKeys         = NULL; /* keys (XML serialized) */
  53         xmlData_t                       myKeysRef       = NULL; /* keys (serialized) */
  54         CFIndex                         myKeysLen       = 0;
  55         CFDataRef                       xmlPatterns     = NULL; /* patterns (XML serialized) */
  56         xmlData_t                       myPatternsRef   = NULL; /* patterns (serialized) */
  57         CFIndex                         myPatternsLen   = 0;
  58         xmlDataOut_t                    xmlDictRef;             /* dict (serialized) */
  59         CFIndex                         xmlDictLen;
  60         CFDictionaryRef                 dict            = NULL; /* dict (un-serialized) */
  61         CFDictionaryRef                 expDict         = NULL; /* dict (un-serialized / expanded) */
  62         int                             sc_status;
  63
  64         if (_sc_verbose) {
  65                 SCLog(TRUE, LOG_DEBUG, CFSTR("SCDynamicStoreCopyMultiple:"));
  66                 SCLog(TRUE, LOG_DEBUG, CFSTR("  keys     = %@"), keys);
  67                 SCLog(TRUE, LOG_DEBUG, CFSTR("  patterns = %@"), patterns);
  68         }
  69
  70         if (!store) {
  71                 /* sorry, you must provide a session */
  72                 _SCErrorSet(kSCStatusNoStoreSession);
  73                 return NULL;
  74         }
  75
  76         if (storePrivate->server == MACH_PORT_NULL) {
  77                 _SCErrorSet(kSCStatusNoStoreServer);
  78                 return NULL;    /* you must have an open session to play */
  79         }
  80
  81         /* serialize the keys */
  82         if (keys) {
  83                 if (!_SCSerialize(keys, &xmlKeys, (void **)&myKeysRef, &myKeysLen)) {
  84                         _SCErrorSet(kSCStatusFailed);
  85                         return NULL;
  86                 }
  87         }
  88
  89         /* serialize the patterns */
  90         if (patterns) {
  91                 if (!_SCSerialize(patterns, &xmlPatterns, (void **)&myPatternsRef, &myPatternsLen)) {
  92                         CFRelease(xmlKeys);
  93                         _SCErrorSet(kSCStatusFailed);
  94                         return NULL;
  95                 }
  96         }
  97
  98         /* send the keys and patterns, fetch the associated result from the server */
  99         status = configget_m(storePrivate->server,
 100                              myKeysRef,
 101                              myKeysLen,
 102                              myPatternsRef,
 103                              myPatternsLen,
 104                              &xmlDictRef,
 105                              (int *)&xmlDictLen,
 106                              (int *)&sc_status);
 107
 108         /* clean up */
 109         if (xmlKeys)            CFRelease(xmlKeys);
 110         if (xmlPatterns)        CFRelease(xmlPatterns);
 111
 112         if (status != KERN_SUCCESS) {
 113                 if (status != MACH_SEND_INVALID_DEST)
 114                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("configget_m(): %s"), mach_error_string(status));
 115                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 116                 storePrivate->server = MACH_PORT_NULL;
 117                 _SCErrorSet(status);
 118                 return NULL;
 119         }
 120
 121         if (sc_status != kSCStatusOK) {
 122                 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDictRef, xmlDictLen);
 123                 if (status != KERN_SUCCESS) {
 124                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
 125                         /* non-fatal???, proceed */
 126                 }
 127                 _SCErrorSet(sc_status);
 128                 return NULL;
 129         }
 130
 131         /* un-serialize the dictionary */
 132         if (!_SCUnserialize((CFPropertyListRef *)&dict, NULL, xmlDictRef, xmlDictLen)) {
 133                 _SCErrorSet(kSCStatusFailed);
 134                 return NULL;
 135         }
 136
 137         expDict = _SCUnserializeMultiple(dict);
 138         CFRelease(dict);
 139
 140         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  value    = %@"), expDict);
 141
 142         return expDict;
 143 }
 144
 145
 146 CFPropertyListRef
 147 SCDynamicStoreCopyValue(SCDynamicStoreRef store, CFStringRef key)
 148 {
 149         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
 150         kern_return_t                   status;
 151         CFDataRef                       utfKey;         /* key (XML serialized) */
 152         xmlData_t                       myKeyRef;       /* key (serialized) */
 153         CFIndex                         myKeyLen;
 154         xmlDataOut_t                    xmlDataRef;     /* data (serialized) */
 155         CFIndex                         xmlDataLen;
 156         CFPropertyListRef               data;           /* data (un-serialized) */
 157         int                             newInstance;
 158         int                             sc_status;
 159
 160         if (_sc_verbose) {
 161                 SCLog(TRUE, LOG_DEBUG, CFSTR("SCDynamicStoreCopyValue:"));
 162                 SCLog(TRUE, LOG_DEBUG, CFSTR("  key      = %@"), key);
 163         }
 164
 165         if (!store) {
 166                 /* sorry, you must provide a session */
 167                 _SCErrorSet(kSCStatusNoStoreSession);
 168                 return NULL;
 169         }
 170
 171         if (storePrivate->server == MACH_PORT_NULL) {
 172                 _SCErrorSet(kSCStatusNoStoreServer);
 173                 return NULL;    /* you must have an open session to play */
 174         }
 175
 176         /* serialize the key */
 177         if (!_SCSerializeString(key, &utfKey, (void **)&myKeyRef, &myKeyLen)) {
 178                 _SCErrorSet(kSCStatusFailed);
 179                 return NULL;
 180         }
 181
 182         /* send the key & fetch the associated data from the server */
 183         status = configget(storePrivate->server,
 184                            myKeyRef,
 185                            myKeyLen,
 186                            &xmlDataRef,
 187                            (int *)&xmlDataLen,
 188                            &newInstance,
 189                            (int *)&sc_status);
 190
 191         /* clean up */
 192         CFRelease(utfKey);
 193
 194         if (status != KERN_SUCCESS) {
 195                 if (status != MACH_SEND_INVALID_DEST)
 196                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("configget(): %s"), mach_error_string(status));
 197                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 198                 storePrivate->server = MACH_PORT_NULL;
 199                 _SCErrorSet(status);
 200                 return NULL;
 201         }
 202
 203         if (sc_status != kSCStatusOK) {
 204                 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
 205                 if (status != KERN_SUCCESS) {
 206                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
 207                         /* non-fatal???, proceed */
 208                 }
 209                 _SCErrorSet(sc_status);
 210                 return NULL;
 211         }
 212
 213         /* un-serialize the data */
 214         if (!_SCUnserialize(&data, NULL, xmlDataRef, xmlDataLen)) {
 215                 _SCErrorSet(kSCStatusFailed);
 216                 return NULL;
 217         }
 218
 219         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  value    = %@"), data);
 220
 221         return data;
 222 }