1/* 2 * Copyright (c) 2012,2014 Apple 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#include <stdio.h> 26 27#include "utilities/SecCFRelease.h" 28#include "utilities/der_plist.h" 29#include "utilities/der_plist_internal.h" 30 31#include <corecrypto/ccder.h> 32#include <CoreFoundation/CoreFoundation.h> 33 34 35const uint8_t* der_decode_array(CFAllocatorRef allocator, CFOptionFlags mutability, 36 CFArrayRef* array, CFErrorRef *error, 37 const uint8_t* der, const uint8_t *der_end) 38{ 39 if (NULL == der) 40 return NULL; 41 42 CFMutableArrayRef result = CFArrayCreateMutable(allocator, 0, &kCFTypeArrayCallBacks); 43 44 const uint8_t *elements_end; 45 const uint8_t *current_element = ccder_decode_sequence_tl(&elements_end, der, der_end); 46 47 while (current_element != NULL && current_element < elements_end) { 48 CFPropertyListRef element = NULL; 49 current_element = der_decode_plist(allocator, mutability, &element, error, current_element, elements_end); 50 if (current_element) { 51 CFArrayAppendValue(result, element); 52 CFReleaseNull(element); 53 } 54 } 55 56 if (current_element) { 57 *array = result; 58 result = NULL; 59 } 60 61 CFReleaseNull(result); 62 return current_element; 63} 64 65 66size_t der_sizeof_array(CFArrayRef data, CFErrorRef *error) 67{ 68 size_t body_size = 0; 69 for(CFIndex position = CFArrayGetCount(data) - 1; 70 position >= 0; 71 --position) 72 { 73 body_size += der_sizeof_plist(CFArrayGetValueAtIndex(data, position), error); 74 } 75 return ccder_sizeof(CCDER_CONSTRUCTED_SEQUENCE, body_size); 76} 77 78 79uint8_t* der_encode_array(CFArrayRef array, CFErrorRef *error, 80 const uint8_t *der, uint8_t *der_end) 81{ 82 uint8_t* original_der_end = der_end; 83 for(CFIndex position = CFArrayGetCount(array) - 1; 84 position >= 0; 85 --position) 86 { 87 der_end = der_encode_plist(CFArrayGetValueAtIndex(array, position), error, der, der_end); 88 } 89 90 return ccder_encode_constructed_tl(CCDER_CONSTRUCTED_SEQUENCE, original_der_end, der, der_end); 91} 92