C++ CFDictionaryGetCount函數代碼示例

//_____________________________________________________________________________
//
bool	AUScope::RestoreElementNames (CFDictionaryRef& inNameDict)
{
	static char string[32];

	//first we have to see if we have enough elements and if not create them
	bool didAddElements = false;
	unsigned int maxElNum = 0;
	
	int dictSize = CFDictionaryGetCount(inNameDict);
	CFStringRef * keys = (CFStringRef*)CA_malloc (dictSize * sizeof (CFStringRef));
	CFDictionaryGetKeysAndValues (inNameDict, reinterpret_cast<const void**>(keys), NULL);
	for (int i = 0; i < dictSize; i++)
	{
		unsigned int intKey;
		CFStringGetCString (keys[i], string, 32, kCFStringEncodingASCII);
		sscanf (string, "%u", &intKey);
		if (UInt32(intKey) > maxElNum)
			maxElNum = intKey;
	}
	
	if (maxElNum >= GetNumberOfElements()) {
		SetNumberOfElements (maxElNum+1);
		didAddElements = true;
	}
		
		// OK, now we have the number of elements that we need - lets restate their names
	for (int i = 0; i < dictSize; i++)
	{
		CFStringRef elName = reinterpret_cast<CFStringRef>(CFDictionaryGetValue (inNameDict,  keys[i]));
		int intKey;
		CFStringGetCString (keys[i], string, 32, kCFStringEncodingASCII);
		sscanf (string, "%d", &intKey);
		GetElement (intKey)->SetName (elName);
	}
	free (keys);
	
	return didAddElements;
}

/**
 * checkForActivity checks to see if any items have completed since the last invokation.
 * If not, a message is displayed showing what item(s) are being waited on.
 **/
static void checkForActivity(CFRunLoopTimerRef aTimer, void* anInfo)
{
    static CFIndex aLastStatusDictionaryCount = -1;
    static CFStringRef aWaitingForString = NULL;
    
    StartupContext aStartupContext = (StartupContext)anInfo;

    if (aStartupContext && aStartupContext->aStatusDict)
      {
        CFIndex aCount = CFDictionaryGetCount(aStartupContext->aStatusDict);

        if (!aWaitingForString)
          {
            aWaitingForString = LocalizedString(aStartupContext->aResourcesBundlePath, kWaitingForKey);
          }
      
        if (aLastStatusDictionaryCount == aCount)
          {
            CFArrayRef aRunningList = StartupItemListGetRunning(aStartupContext->aWaitingList);
            if (aRunningList && CFArrayGetCount(aRunningList) > 0)
              {
                CFMutableDictionaryRef anItem = (CFMutableDictionaryRef)CFArrayGetValueAtIndex(aRunningList, 0);
                CFStringRef anItemDescription = StartupItemGetDescription(anItem);
                CFStringRef aString = aWaitingForString && anItemDescription ? 
                                        CFStringCreateWithFormat(NULL, NULL, aWaitingForString, anItemDescription) : NULL;
                
                if (aString)
                  {
                    displayStatus(aStartupContext->aDisplayContext, aString);
                    CFRelease(aString);
                  }
                if (anItemDescription) CFRelease(anItemDescription);
              }
            if (aRunningList) CFRelease(aRunningList);
          }
        aLastStatusDictionaryCount = aCount;
      }
}

//---------------------------------------------------------------------------
// ProcessUPSEvent
//
//---------------------------------------------------------------------------
void ProcessUPSEvent(UPSDataRef upsDataRef, CFDictionaryRef event)
{
    UInt32		count, index;
    
    if ( !upsDataRef || !event)
        return;
      
    if ( (count = CFDictionaryGetCount(event)) )
    {	
        CFTypeRef * keys	= (CFTypeRef *) malloc(sizeof(CFTypeRef) * count);
        CFTypeRef * values	= (CFTypeRef *) malloc(sizeof(CFTypeRef) * count);

        CFDictionaryGetKeysAndValues(event, (const void **)keys, (const void **)values);
        
        for (index = 0; index < count; index++)
            CFDictionarySetValue(upsDataRef->upsStoreDict, keys[index], values[index]);
            
        free (keys);
        free (values);
            
        SCDynamicStoreSetValue(upsDataRef->upsStore, upsDataRef->upsStoreKey, upsDataRef->upsStoreDict);
    }
}

// quick message to indicate that the given domain has changed, and we should go through and invalidate any dictReps that involve this domain.
void _CFApplicationPreferencesDomainHasChanged(CFPreferencesDomainRef changedDomain) {
    CFAllocatorRef alloc = __CFPreferencesAllocator();
    __CFSpinLock(&__CFApplicationPreferencesLock);
    if(__CFStandardUserPreferences) {  // only grovel over the prefs if there's something there to grovel
        _CFApplicationPreferences **prefsArray, *prefsBuf[32];
        CFIndex idx, count = CFDictionaryGetCount(__CFStandardUserPreferences);
        if(count < 32) {
            prefsArray = prefsBuf;
        } else {
            prefsArray = (_CFApplicationPreferences **)CFAllocatorAllocate(alloc, count * sizeof(_CFApplicationPreferences *), 0);
        }
        CFDictionaryGetKeysAndValues(__CFStandardUserPreferences, NULL, (const void **)prefsArray);
        // For this operation, giving up the lock is the last thing we want to do, so use the modified flavor of _CFApplicationPreferencesContainsDomain
        for(idx = 0; idx < count; idx++) {
            _CFApplicationPreferences *appPrefs = prefsArray[idx];
            if(_CFApplicationPreferencesContainsDomainNoLock(appPrefs, changedDomain)) {
                updateDictRep(appPrefs);
            }
        }
        if(prefsArray != prefsBuf) _CFAllocatorDeallocateGC(alloc, prefsArray);
    }
    __CFSpinUnlock(&__CFApplicationPreferencesLock);
}

void encode(ArgumentEncoder* encoder, CFDictionaryRef dictionary)
{
    CFIndex size = CFDictionaryGetCount(dictionary);
    Vector<CFTypeRef, 32> keys(size);
    Vector<CFTypeRef, 32> values(size);
    
    CFDictionaryGetKeysAndValues(dictionary, keys.data(), values.data());

    encoder->encodeUInt64(size);

    for (CFIndex i = 0; i < size; ++i) {
        ASSERT(keys[i]);
        ASSERT(CFGetTypeID(keys[i]) == CFStringGetTypeID());
        ASSERT(values[i]);

        // Ignore values we don't recognize.
        if (typeFromCFTypeRef(values[i]) == Unknown)
            continue;

        encode(encoder, static_cast<CFStringRef>(keys[i]));
        encode(encoder, values[i]);
    }
}

CFDictionaryRef SFB::Audio::AttachedPicture::CreateDictionaryRepresentation() const
{
	CFMutableDictionaryRef dictionaryRepresentation = CFDictionaryCreateMutableCopy(kCFAllocatorDefault, 0, mMetadata);

	CFIndex count = CFDictionaryGetCount(mChangedMetadata);

	CFTypeRef *keys = (CFTypeRef *)malloc(sizeof(CFTypeRef) * (size_t)count);
	CFTypeRef *values = (CFTypeRef *)malloc(sizeof(CFTypeRef) * (size_t)count);

	CFDictionaryGetKeysAndValues(mChangedMetadata, keys, values);

	for(CFIndex i = 0; i < count; ++i) {
		if(kCFNull == values[i])
			CFDictionaryRemoveValue(dictionaryRepresentation, keys[i]);
		else
			CFDictionarySetValue(dictionaryRepresentation, keys[i], values[i]);
	}

	free(keys), keys = nullptr;
	free(values), values = nullptr;

	return dictionaryRepresentation;
}

static void getVolatileKeysAndValues(CFAllocatorRef alloc, CFTypeRef context, void *domain, void **buf[], CFIndex *numKeyValuePairs) {
    CFMutableDictionaryRef dict = (CFMutableDictionaryRef)domain;
    CFIndex count = CFDictionaryGetCount(dict);

    if (buf) {
        void **values;
        if ( count < *numKeyValuePairs ) {
            values = *buf + count;
            CFDictionaryGetKeysAndValues(dict, (const void **)*buf, (const void **)values);
        } else if (alloc != kCFAllocatorNull) {
            if (*buf) {
                *buf = (void **)CFAllocatorReallocate(alloc, *buf, count * 2 * sizeof(void *), 0);
            } else {
                *buf = (void **)CFAllocatorAllocate(alloc, count*2*sizeof(void *), 0);
            }
            if (*buf) {
                values = *buf + count;
                CFDictionaryGetKeysAndValues(dict, (const void **)*buf, (const void **)values);
            }
        }
    }
    *numKeyValuePairs = count;
}

void ResourceRequest::doUpdateResourceRequest()
{
    m_url = CFURLRequestGetURL(m_cfRequest.get());

    m_cachePolicy = (ResourceRequestCachePolicy)CFURLRequestGetCachePolicy(m_cfRequest.get());
    m_timeoutInterval = CFURLRequestGetTimeoutInterval(m_cfRequest.get());
    m_firstPartyForCookies = CFURLRequestGetMainDocumentURL(m_cfRequest.get());
    if (CFStringRef method = CFURLRequestCopyHTTPRequestMethod(m_cfRequest.get())) {
        m_httpMethod = method;
        CFRelease(method);
    }
    m_allowHTTPCookies = CFURLRequestShouldHandleHTTPCookies(m_cfRequest.get());

    if (CFDictionaryRef headers = CFURLRequestCopyAllHTTPHeaderFields(m_cfRequest.get())) {
        CFIndex headerCount = CFDictionaryGetCount(headers);
        Vector<const void*, 128> keys(headerCount);
        Vector<const void*, 128> values(headerCount);
        CFDictionaryGetKeysAndValues(headers, keys.data(), values.data());
        for (int i = 0; i < headerCount; ++i)
            m_httpHeaderFields.set((CFStringRef)keys[i], (CFStringRef)values[i]);
        CFRelease(headers);
    }

    m_responseContentDispositionEncodingFallbackArray.clear();
    RetainPtr<CFArrayRef> encodingFallbacks(AdoptCF, copyContentDispositionEncodingFallbackArray(m_cfRequest.get()));
    if (encodingFallbacks) {
        CFIndex count = CFArrayGetCount(encodingFallbacks.get());
        for (CFIndex i = 0; i < count; ++i) {
            CFStringEncoding encoding = reinterpret_cast<CFIndex>(CFArrayGetValueAtIndex(encodingFallbacks.get(), i));
            if (encoding != kCFStringEncodingInvalidId)
                m_responseContentDispositionEncodingFallbackArray.append(CFStringConvertEncodingToIANACharSetName(encoding));
        }
    }

    m_httpBody = httpBodyFromRequest(m_cfRequest.get());
}

/*! Creates a CFArray object containing CFString objects with portal group
 *  tags for a particular target.
 *  @param discoveryRec the discovery record.
 *  @param targetIQN the name of the target.
 *  @return an array of strings with portal group tags for the specified target. */
CFArrayRef iSCSIDiscoveryRecCreateArrayOfPortalGroupTags(iSCSIDiscoveryRecRef discoveryRec,
                                                         CFStringRef targetIQN)
{
    // Validate inputs
    if(!discoveryRec || !targetIQN)
        return NULL;
    
    // If target doesn't exist return NULL
    CFMutableDictionaryRef targetDict;
    if(!CFDictionaryGetValueIfPresent(discoveryRec,targetIQN,(void *)&targetDict))
        return NULL;
    
    // Otherwise get all keys, which correspond to the portal group tags
    const CFIndex count = CFDictionaryGetCount(targetDict);
    
    const void * keys[count];
    CFDictionaryGetKeysAndValues(targetDict,keys,NULL);
    
    CFArrayRef portalGroups = CFArrayCreate(kCFAllocatorDefault,
                                            keys,
                                            count,
                                            &kCFTypeArrayCallBacks);
    return portalGroups;
}

static void getXMLKeysAndValues(CFAllocatorRef alloc, CFTypeRef context, void *xmlDomain, void **buf[], CFIndex *numKeyValuePairs) {
    _CFXMLPreferencesDomain *domain = (_CFXMLPreferencesDomain *)xmlDomain;
    CFIndex count;
    __CFLock(&domain->_lock);
    if (!domain->_domainDict) {
        _loadXMLDomainIfStale((CFURLRef )context, domain);
    }
    count = CFDictionaryGetCount(domain->_domainDict);
    if (buf) {
        void **values;
        if (count <= *numKeyValuePairs) {
            values = *buf + count;
            CFDictionaryGetKeysAndValues(domain->_domainDict, (const void **)*buf, (const void **)values);
        } else if (alloc != kCFAllocatorNull) {
	    *buf = (void**) CFAllocatorReallocate(alloc, (*buf ? *buf : NULL), count * 2 * sizeof(void *), 0);
            if (*buf) {
                values = *buf + count;
                CFDictionaryGetKeysAndValues(domain->_domainDict, (const void **)*buf, (const void **)values);
            }
        }
    }
    *numKeyValuePairs = count;
    __CFUnlock(&domain->_lock);
}

/**
 * Loads the SystemStarter display bundle at the specified path.
 * A no-op if SystemStarter is not starting in graphical mode.
 **/
static void loadDisplayBundle (StartupContext aStartupContext, CFDictionaryRef anIPCMessage)
{
    if (!gVerboseFlag && anIPCMessage && aStartupContext)
      {
        CFStringRef aBundlePath = CFDictionaryGetValue(anIPCMessage, kIPCDisplayBundlePathKey);        
        if (aBundlePath && CFGetTypeID(aBundlePath) == CFStringGetTypeID())
          {
            extern void LoadDisplayPlugIn(CFStringRef);

            if (aStartupContext->aDisplayContext)
                freeDisplayContext(aStartupContext->aDisplayContext);
            LoadDisplayPlugIn(aBundlePath);
            aStartupContext->aDisplayContext = initDisplayContext();
            
              {
                CFStringRef aLocalizedString = LocalizedString(aStartupContext->aResourcesBundlePath, kWelcomeToMacintoshKey);
                if (aLocalizedString)
                  {
                    displayStatus(aStartupContext->aDisplayContext, aLocalizedString);
                    displayProgress(aStartupContext->aDisplayContext, ((float)CFDictionaryGetCount(aStartupContext->aStatusDict)/((float)aStartupContext->aServicesCount + 1.0)));
                    CFRelease(aLocalizedString);
                  }
              }
            
            if (gSafeBootFlag)
              {
                CFStringRef aLocalizedString = LocalizedString(aStartupContext->aResourcesBundlePath, kSafeBootKey);
                if (aLocalizedString)
                  {
                    (void) displaySafeBootMsg(aStartupContext->aDisplayContext, aLocalizedString);
                    CFRelease(aLocalizedString);
                  }
              }
          }
      }
}

void
debugCallback(
	CFNotificationCenterRef center,
	void *observer,
	CFStringRef name,
	const void *object,
	CFDictionaryRef userInfo)
{
	int i = 0;
	
	printf("Debug callback: %s\n", CFStringToCString(name));
	if (!userInfo)
		return;
	
	CFIndex count = CFDictionaryGetCount(userInfo);
	const void *keys[count];
	const void *values[count];
	CFDictionaryGetKeysAndValues(userInfo, keys, values);
	for(i = 0; i < count; i++)
	{
		printf("For i=%d, key: %s\n", i,
					CFStringToCString((CFStringRef)keys[i]));
	}
}

static void
ivar_dict_foreach(CFDictionaryRef dict, int (*func)(ANYARGS), VALUE farg)
{
    const long count = CFDictionaryGetCount(dict);
    if (count == 0) {
	return;
    }

    const void **keys = (const void **)malloc(sizeof(void *) * count);
    assert(keys != NULL);
    const void **values = (const void **)malloc(sizeof(void *) * count);
    assert(values != NULL);

    CFDictionaryGetKeysAndValues(dict, keys, values);

    for (long i = 0; i < count; i++) {
	if ((*func)(keys[i], values[i], farg) != ST_CONTINUE) {
	    break;
	}
    }

    free(keys);
    free(values);
}

static bool isSoftwareUpdateDevelopment(SecTrustRef trust) {
    bool isPolicy = false, isEKU = false;
    CFArrayRef policies = NULL;

    /* Policy used to evaluate was SWUpdateSigning */
    SecTrustCopyPolicies(trust, &policies);
    if (policies) {
        SecPolicyRef swUpdatePolicy = SecPolicyCreateAppleSWUpdateSigning();
        if (swUpdatePolicy && CFArrayContainsValue(policies, CFRangeMake(0, CFArrayGetCount(policies)),
                                                   swUpdatePolicy)) {
            isPolicy = true;
        }
        if (swUpdatePolicy) { CFRelease(swUpdatePolicy); }
        CFRelease(policies);
    }
    if (!isPolicy) {
        return false;
    }

    /* Only error was EKU on the leaf */
    CFArrayRef details = SecTrustCopyFilteredDetails(trust);
    CFIndex ix, count = CFArrayGetCount(details);
    bool hasDisqualifyingError = false;
    for (ix = 0; ix < count; ix++) {
        CFDictionaryRef detail = (CFDictionaryRef)CFArrayGetValueAtIndex(details, ix);
        if (ix == 0) { // Leaf
            if (CFDictionaryGetCount(detail) != 1 || // One error
                CFDictionaryGetValue(detail, CFSTR("ExtendedKeyUsage")) != kCFBooleanFalse) { // kSecPolicyCheckExtendedKeyUsage
                hasDisqualifyingError = true;
                break;
            }
        } else {
            if (CFDictionaryGetCount(detail) > 0) { // No errors on other certs
                hasDisqualifyingError = true;
                break;
            }
        }
    }
    CFReleaseSafe(details);
    if (hasDisqualifyingError) {
        return false;
    }

    /* EKU on the leaf is the Apple Development Code Signing OID */
    SecCertificateRef leaf = SecTrustGetCertificateAtIndex(trust, 0);
    CSSM_DATA *fieldValue = NULL;
    if (errSecSuccess != SecCertificateCopyFirstFieldValue(leaf, &CSSMOID_ExtendedKeyUsage, &fieldValue)) {
        return false;
    }
    if (fieldValue && fieldValue->Data && fieldValue->Length == sizeof(CSSM_X509_EXTENSION)) {
        const CSSM_X509_EXTENSION *ext = (const CSSM_X509_EXTENSION *)fieldValue->Data;
        if (ext->format == CSSM_X509_DATAFORMAT_PARSED) {
            const CE_ExtendedKeyUsage *ekus = (const CE_ExtendedKeyUsage *)ext->value.parsedValue;
            if (ekus && (ekus->numPurposes == 1) && ekus->purposes[0].Data &&
                (ekus->purposes[0].Length == CSSMOID_APPLE_EKU_CODE_SIGNING_DEV.Length) &&
                (memcmp(ekus->purposes[0].Data, CSSMOID_APPLE_EKU_CODE_SIGNING_DEV.Data,
                        ekus->purposes[0].Length) == 0)) {
                isEKU = true;
            }
        }
    }
    SecCertificateReleaseFirstFieldValue(leaf, &CSSMOID_ExtendedKeyUsage, fieldValue);
    return isEKU;
}

//.........這裏部分代碼省略.........
    }

   /*
    * Get the local hostname from the dynamic store...
    */

    cupsdClearString(&DNSSDHostName);

    if ((nameRef = SCDynamicStoreCopyLocalHostName(sc)) != NULL)
    {
      if (CFStringGetCString(nameRef, nameBuffer, sizeof(nameBuffer),
			     kCFStringEncodingUTF8))
      {
        cupsdLogMessage(CUPSD_LOG_DEBUG,
	                "Dynamic store host name is \"%s\".", nameBuffer);
	cupsdSetString(&DNSSDHostName, nameBuffer);
      }

      CFRelease(nameRef);
    }

    if (!DNSSDHostName)
    {
     /*
      * Use the ServerName instead...
      */

      cupsdLogMessage(CUPSD_LOG_DEBUG,
                      "Using ServerName \"%s\" as host name.", ServerName);
      cupsdSetString(&DNSSDHostName, ServerName);
    }

   /*
    * Get any Back-to-My-Mac domains and add them as aliases...
    */

    cupsdFreeAliases(DNSSDAlias);
    DNSSDAlias = NULL;

    btmm = SCDynamicStoreCopyValue(sc, CFSTR("Setup:/Network/BackToMyMac"));
    if (btmm && CFGetTypeID(btmm) == CFDictionaryGetTypeID())
    {
      cupsdLogMessage(CUPSD_LOG_DEBUG, "%d Back to My Mac aliases to add.",
		      (int)CFDictionaryGetCount(btmm));
      CFDictionaryApplyFunction(btmm, dnssdAddAlias, NULL);
    }
    else if (btmm)
      cupsdLogMessage(CUPSD_LOG_ERROR,
		      "Bad Back to My Mac data in dynamic store!");
    else
      cupsdLogMessage(CUPSD_LOG_DEBUG, "No Back to My Mac aliases to add.");

    if (btmm)
      CFRelease(btmm);

    CFRelease(sc);
  }
  else
#  endif /* __APPLE__ */
#  ifdef HAVE_AVAHI
  if (DNSSDClient)
  {
    const char	*host_name = avahi_client_get_host_name(DNSSDClient);
    const char	*host_fqdn = avahi_client_get_host_name_fqdn(DNSSDClient);

    cupsdSetString(&DNSSDComputerName, host_name ? host_name : ServerName);

    if (host_fqdn)
      cupsdSetString(&DNSSDHostName, host_fqdn);
    else if (strchr(ServerName, '.'))
      cupsdSetString(&DNSSDHostName, ServerName);
    else
      cupsdSetStringf(&DNSSDHostName, "%s.local", ServerName);
  }
  else
#  endif /* HAVE_AVAHI */
  {
    cupsdSetString(&DNSSDComputerName, ServerName);

    if (strchr(ServerName, '.'))
      cupsdSetString(&DNSSDHostName, ServerName);
    else
      cupsdSetStringf(&DNSSDHostName, "%s.local", ServerName);
  }

 /*
  * Then (re)register the web interface if enabled...
  */

  if (BrowseWebIF)
  {
    if (DNSSDComputerName)
      snprintf(webif, sizeof(webif), "CUPS @ %s", DNSSDComputerName);
    else
      strlcpy(webif, "CUPS", sizeof(webif));

    dnssdDeregisterInstance(&WebIFSrv, from_callback);
    dnssdRegisterInstance(&WebIFSrv, NULL, webif, "_http._tcp", "_printer", DNSSDPort, NULL, 1, from_callback);
  }
}