C++ (Cpp) der_decode_data_or_null Exemples

Exemple #1

Fichier : SOSAccountCloudParameters.c Projet : unofficial-opensource-apple/Security

static const uint8_t* der_decode_cloud_parameters(CFAllocatorRef allocator,
                                                  CFIndex algorithmID, SecKeyRef* publicKey,
                                                  CFDataRef *parameters,
                                                  CFErrorRef* error,
                                                  const uint8_t* der, const uint8_t* der_end)
{
    const uint8_t *sequence_end;
    der = ccder_decode_sequence_tl(&sequence_end, der, der_end);
    der = der_decode_public_bytes(allocator, algorithmID, publicKey, error, der, sequence_end);
    der = der_decode_data_or_null(allocator, parameters, error, der, sequence_end);
    
    return der;
}

Exemple #2

SOSAccountRef SOSAccountCreateFromDER_V1(CFAllocatorRef allocator,
                                         SOSDataSourceFactoryRef factory,
                                         CFErrorRef* error,
                                         const uint8_t** der_p, const uint8_t *der_end)
{
    SOSAccountRef account = NULL;
    
    const uint8_t *sequence_end;
    *der_p = ccder_decode_constructed_tl(CCDER_CONSTRUCTED_SEQUENCE, &sequence_end, *der_p, der_end);
    
    {
        CFDictionaryRef decoded_gestalt = NULL;
        *der_p = der_decode_dictionary(kCFAllocatorDefault, kCFPropertyListImmutable, &decoded_gestalt, error,
                                       *der_p, der_end);
        
        if (*der_p == 0)
            return NULL;
        
        account = SOSAccountCreateBasic(allocator, decoded_gestalt, factory);
        CFReleaseNull(decoded_gestalt);
    }
    
    CFArrayRef array = NULL;
    *der_p = der_decode_array(kCFAllocatorDefault, 0, &array, error, *der_p, sequence_end);
    
    *der_p = ccder_decode_bool(&account->user_public_trusted, *der_p, sequence_end);
    *der_p = der_decode_public_bytes(kCFAllocatorDefault, kSecECDSAAlgorithmID, &account->user_public, error, *der_p, sequence_end);
    *der_p = der_decode_data_or_null(kCFAllocatorDefault, &account->user_key_parameters, error, *der_p, sequence_end);
    *der_p = der_decode_dictionary(kCFAllocatorDefault, kCFPropertyListMutableContainers, (CFDictionaryRef *) &account->retired_peers, error, *der_p, sequence_end);
    if (*der_p != sequence_end)
        *der_p = NULL;
    
    __block bool success = true;
    
    require_quiet(array && *der_p, fail);
    
    CFArrayForEach(array, ^(const void *value) {
        if (success) {
            if (isString(value)) {
                CFDictionaryAddValue(account->circles, value, kCFNull);
            } else {
                CFDataRef circleData = NULL;
                CFDataRef fullPeerInfoData = NULL;
                
                if (isData(value)) {
                    circleData = (CFDataRef) value;
                } else if (isArray(value)) {
                    CFArrayRef pair = (CFArrayRef) value;
                    
                    CFTypeRef circleObject = CFArrayGetValueAtIndex(pair, 0);
                    CFTypeRef fullPeerInfoObject = CFArrayGetValueAtIndex(pair, 1);
                    
                    if (CFArrayGetCount(pair) == 2 && isData(circleObject) && isData(fullPeerInfoObject)) {
                        circleData = (CFDataRef) circleObject;
                        fullPeerInfoData = (CFDataRef) fullPeerInfoObject;
                    }
                }
                
                if (circleData) {
                    SOSCircleRef circle = SOSCircleCreateFromData(kCFAllocatorDefault, circleData, error);
                    require_action_quiet(circle, fail, success = false);
                    
                    CFStringRef circleName = SOSCircleGetName(circle);
                    CFDictionaryAddValue(account->circles, circleName, circle);
                    
                    if (fullPeerInfoData) {
                        SOSFullPeerInfoRef full_peer = SOSFullPeerInfoCreateFromData(kCFAllocatorDefault, fullPeerInfoData, error);
                        require_action_quiet(full_peer, fail, success = false);
                        
                        CFDictionaryAddValue(account->circle_identities, circleName, full_peer);
                        CFReleaseNull(full_peer);
                    }
                fail:
                    CFReleaseNull(circle);
                }
            }
        }
    });