SystemConfiguration.fproj/SCDGet.c

   1 /*
   2  * Copyright (c) 2000-2003 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 #include <mach/mach.h>
  35 #include <mach/mach_error.h>
  36
  37 #include <SystemConfiguration/SystemConfiguration.h>
  38 #include <SystemConfiguration/SCPrivate.h>
  39 #include "SCDynamicStoreInternal.h"
  40 #include "config.h"             /* MiG generated file */
  41
  42
  43 CFDictionaryRef
  44 SCDynamicStoreCopyMultiple(SCDynamicStoreRef    store,
  45                            CFArrayRef           keys,
  46                            CFArrayRef           patterns)
  47 {
  48         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
  49         kern_return_t                   status;
  50         CFDataRef                       xmlKeys         = NULL; /* keys (XML serialized) */
  51         xmlData_t                       myKeysRef       = NULL; /* keys (serialized) */
  52         CFIndex                         myKeysLen       = 0;
  53         CFDataRef                       xmlPatterns     = NULL; /* patterns (XML serialized) */
  54         xmlData_t                       myPatternsRef   = NULL; /* patterns (serialized) */
  55         CFIndex                         myPatternsLen   = 0;
  56         xmlDataOut_t                    xmlDictRef;             /* dict (serialized) */
  57         CFIndex                         xmlDictLen;
  58         CFDictionaryRef                 dict            = NULL; /* dict (un-serialized) */
  59         CFDictionaryRef                 expDict         = NULL; /* dict (un-serialized / expanded) */
  60         int                             sc_status;
  61
  62         if (_sc_verbose) {
  63                 SCLog(TRUE, LOG_DEBUG, CFSTR("SCDynamicStoreCopyMultiple:"));
  64                 SCLog(TRUE, LOG_DEBUG, CFSTR("  keys     = %@"), keys);
  65                 SCLog(TRUE, LOG_DEBUG, CFSTR("  patterns = %@"), patterns);
  66         }
  67
  68         if (!store) {
  69                 /* sorry, you must provide a session */
  70                 _SCErrorSet(kSCStatusNoStoreSession);
  71                 return NULL;
  72         }
  73
  74         if (storePrivate->server == MACH_PORT_NULL) {
  75                 _SCErrorSet(kSCStatusNoStoreServer);
  76                 return NULL;    /* you must have an open session to play */
  77         }
  78
  79         /* serialize the keys */
  80         if (keys) {
  81                 if (!_SCSerialize(keys, &xmlKeys, (void **)&myKeysRef, &myKeysLen)) {
  82                         _SCErrorSet(kSCStatusFailed);
  83                         return NULL;
  84                 }
  85         }
  86
  87         /* serialize the patterns */
  88         if (patterns) {
  89                 if (!_SCSerialize(patterns, &xmlPatterns, (void **)&myPatternsRef, &myPatternsLen)) {
  90                         CFRelease(xmlKeys);
  91                         _SCErrorSet(kSCStatusFailed);
  92                         return NULL;
  93                 }
  94         }
  95
  96         /* send the keys and patterns, fetch the associated result from the server */
  97         status = configget_m(storePrivate->server,
  98                              myKeysRef,
  99                              myKeysLen,
 100                              myPatternsRef,
 101                              myPatternsLen,
 102                              &xmlDictRef,
 103                              (int *)&xmlDictLen,
 104                              (int *)&sc_status);
 105
 106         /* clean up */
 107         if (xmlKeys)            CFRelease(xmlKeys);
 108         if (xmlPatterns)        CFRelease(xmlPatterns);
 109
 110         if (status != KERN_SUCCESS) {
 111                 if (status != MACH_SEND_INVALID_DEST)
 112                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("configget_m(): %s"), mach_error_string(status));
 113                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 114                 storePrivate->server = MACH_PORT_NULL;
 115                 _SCErrorSet(status);
 116                 return NULL;
 117         }
 118
 119         if (sc_status != kSCStatusOK) {
 120                 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDictRef, xmlDictLen);
 121                 if (status != KERN_SUCCESS) {
 122                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
 123                         /* non-fatal???, proceed */
 124                 }
 125                 _SCErrorSet(sc_status);
 126                 return NULL;
 127         }
 128
 129         /* un-serialize the dictionary */
 130         if (!_SCUnserialize((CFPropertyListRef *)&dict, NULL, xmlDictRef, xmlDictLen)) {
 131                 _SCErrorSet(kSCStatusFailed);
 132                 return NULL;
 133         }
 134
 135         expDict = _SCUnserializeMultiple(dict);
 136         CFRelease(dict);
 137
 138         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  value    = %@"), expDict);
 139
 140         return expDict;
 141 }
 142
 143
 144 CFPropertyListRef
 145 SCDynamicStoreCopyValue(SCDynamicStoreRef store, CFStringRef key)
 146 {
 147         SCDynamicStorePrivateRef        storePrivate = (SCDynamicStorePrivateRef)store;
 148         kern_return_t                   status;
 149         CFDataRef                       utfKey;         /* key (XML serialized) */
 150         xmlData_t                       myKeyRef;       /* key (serialized) */
 151         CFIndex                         myKeyLen;
 152         xmlDataOut_t                    xmlDataRef;     /* data (serialized) */
 153         CFIndex                         xmlDataLen;
 154         CFPropertyListRef               data;           /* data (un-serialized) */
 155         int                             newInstance;
 156         int                             sc_status;
 157
 158         if (_sc_verbose) {
 159                 SCLog(TRUE, LOG_DEBUG, CFSTR("SCDynamicStoreCopyValue:"));
 160                 SCLog(TRUE, LOG_DEBUG, CFSTR("  key      = %@"), key);
 161         }
 162
 163         if (!store) {
 164                 /* sorry, you must provide a session */
 165                 _SCErrorSet(kSCStatusNoStoreSession);
 166                 return NULL;
 167         }
 168
 169         if (storePrivate->server == MACH_PORT_NULL) {
 170                 _SCErrorSet(kSCStatusNoStoreServer);
 171                 return NULL;    /* you must have an open session to play */
 172         }
 173
 174         /* serialize the key */
 175         if (!_SCSerializeString(key, &utfKey, (void **)&myKeyRef, &myKeyLen)) {
 176                 _SCErrorSet(kSCStatusFailed);
 177                 return NULL;
 178         }
 179
 180         /* send the key & fetch the associated data from the server */
 181         status = configget(storePrivate->server,
 182                            myKeyRef,
 183                            myKeyLen,
 184                            &xmlDataRef,
 185                            (int *)&xmlDataLen,
 186                            &newInstance,
 187                            (int *)&sc_status);
 188
 189         /* clean up */
 190         CFRelease(utfKey);
 191
 192         if (status != KERN_SUCCESS) {
 193                 if (status != MACH_SEND_INVALID_DEST)
 194                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("configget(): %s"), mach_error_string(status));
 195                 (void) mach_port_destroy(mach_task_self(), storePrivate->server);
 196                 storePrivate->server = MACH_PORT_NULL;
 197                 _SCErrorSet(status);
 198                 return NULL;
 199         }
 200
 201         if (sc_status != kSCStatusOK) {
 202                 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
 203                 if (status != KERN_SUCCESS) {
 204                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
 205                         /* non-fatal???, proceed */
 206                 }
 207                 _SCErrorSet(sc_status);
 208                 return NULL;
 209         }
 210
 211         /* un-serialize the data */
 212         if (!_SCUnserialize(&data, NULL, xmlDataRef, xmlDataLen)) {
 213                 _SCErrorSet(kSCStatusFailed);
 214                 return NULL;
 215         }
 216
 217         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  value    = %@"), data);
 218
 219         return data;
 220 }