SystemConfiguration.fproj/SCDList.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <sys/types.h>
  24 #include <regex.h>
  25
  26 #include <mach/mach.h>
  27 #include <mach/mach_error.h>
  28
  29 #include <SystemConfiguration/SCD.h>
  30 #include "config.h"             /* MiG generated file */
  31 #include "SCDPrivate.h"
  32
  33
  34 static CFComparisonResult
  35 sort_keys(const void *p1, const void *p2, void *context) {
  36         CFStringRef key1 = (CFStringRef)p1;
  37         CFStringRef key2 = (CFStringRef)p2;
  38         return CFStringCompare(key1, key2, 0);
  39 }
  40
  41
  42 SCDStatus
  43 SCDList(SCDSessionRef session, CFStringRef key, int regexOptions, CFArrayRef *subKeys)
  44 {
  45         SCDSessionPrivateRef    sessionPrivate = (SCDSessionPrivateRef)session;
  46         kern_return_t           status;
  47         CFDataRef               xmlKey;         /* serialized key */
  48         xmlData_t               myKeyRef;
  49         CFIndex                 myKeyLen;
  50         CFDataRef               xmlData;        /* data (XML serialized) */
  51         xmlDataOut_t            xmlDataRef;     /* serialized data */
  52         int                     xmlDataLen;
  53         SCDStatus               scd_status;
  54         CFArrayRef              allKeys;
  55         CFMutableArrayRef       sortedKeys;
  56         CFStringRef             xmlError;
  57
  58         SCDLog(LOG_DEBUG, CFSTR("SCDList:"));
  59         SCDLog(LOG_DEBUG, CFSTR("  key          = %@"), key);
  60         SCDLog(LOG_DEBUG, CFSTR("  regexOptions = %0o"), regexOptions);
  61
  62         if (key == NULL) {
  63                 return SCD_INVALIDARGUMENT;     /* no key specified */
  64         }
  65
  66         if ((session == NULL) || (sessionPrivate->server == MACH_PORT_NULL)) {
  67                 return SCD_NOSESSION;
  68         }
  69
  70         /* serialize the key */
  71         xmlKey = CFPropertyListCreateXMLData(NULL, key);
  72         myKeyRef = (xmlData_t)CFDataGetBytePtr(xmlKey);
  73         myKeyLen = CFDataGetLength(xmlKey);
  74
  75         /* send the key & fetch the associated data from the server */
  76         status = configlist(sessionPrivate->server,
  77                             myKeyRef,
  78                             myKeyLen,
  79                             regexOptions,
  80                             &xmlDataRef,
  81                             &xmlDataLen,
  82                             (int *)&scd_status);
  83
  84         /* clean up */
  85         CFRelease(xmlKey);
  86
  87         if (status != KERN_SUCCESS) {
  88                 if (status != MACH_SEND_INVALID_DEST)
  89                         SCDLog(LOG_DEBUG, CFSTR("configlist(): %s"), mach_error_string(status));
  90                 (void) mach_port_destroy(mach_task_self(), sessionPrivate->server);
  91                 sessionPrivate->server = MACH_PORT_NULL;
  92                 return SCD_NOSERVER;
  93         }
  94
  95         if (scd_status != SCD_OK) {
  96                 status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
  97                 if (status != KERN_SUCCESS) {
  98                         SCDLog(LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
  99                         /* non-fatal???, proceed */
 100                 }
 101                 *subKeys = NULL;
 102                 return scd_status;
 103         }
 104
 105         /* un-serialize the list of keys */
 106         xmlData = CFDataCreate(NULL, xmlDataRef, xmlDataLen);
 107         status = vm_deallocate(mach_task_self(), (vm_address_t)xmlDataRef, xmlDataLen);
 108         if (status != KERN_SUCCESS) {
 109                 SCDLog(LOG_DEBUG, CFSTR("vm_deallocate(): %s"), mach_error_string(status));
 110                 /* non-fatal???, proceed */
 111         }
 112         allKeys = CFPropertyListCreateFromXMLData(NULL,
 113                                                   xmlData,
 114                                                   kCFPropertyListImmutable,
 115                                                   &xmlError);
 116         CFRelease(xmlData);
 117         if (xmlError) {
 118                 SCDLog(LOG_DEBUG, CFSTR("CFPropertyListCreateFromXMLData() list: %s"), xmlError);
 119                 return SCD_FAILED;
 120         }
 121
 122         myKeyLen = CFArrayGetCount(allKeys);
 123         sortedKeys = CFArrayCreateMutableCopy(NULL, myKeyLen, allKeys);
 124         CFRelease(allKeys);
 125         CFArraySortValues(sortedKeys,
 126                           CFRangeMake(0, myKeyLen),
 127                           sort_keys,
 128                           NULL);
 129
 130         *subKeys = sortedKeys;
 131         return scd_status;
 132 }