Security-57031.1.35.tar.gz

[apple/security.git] / utilities / src / der_number.c

diff --git a/utilities/src/der_number.c b/utilities/src/der_number.c
deleted file mode 100644 (file)
index 979b97b..0000000
--- a/utilities/src/der_number.c
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-//  der_number.c
-//  utilities
-//
-//  Created by Mitch Adler on 6/19/12.
-//  Copyright (c) 2012 Apple Inc. All rights reserved.
-//
-
-
-#include <stdio.h>
-
-#include "utilities/SecCFRelease.h"
-#include "utilities/der_plist.h"
-#include "utilities/der_plist_internal.h"
-
-#include <corecrypto/ccder.h>
-#include <CoreFoundation/CoreFoundation.h>
-
-
-const uint8_t* der_decode_number(CFAllocatorRef allocator, CFOptionFlags mutability,
-                                 CFNumberRef* number, CFErrorRef *error,
-                                 const uint8_t* der, const uint8_t *der_end)
-{
-    if (NULL == der)
-        return NULL;
-
-    size_t payload_size = 0;
-    const uint8_t *payload = ccder_decode_tl(CCDER_INTEGER, &payload_size, der, der_end);
-
-    if (NULL == payload || (der_end - payload) < payload_size) {
-        SecCFDERCreateError(kSecDERErrorUnknownEncoding, CFSTR("Unknown number encoding"), NULL, error);
-        return NULL;
-    }
-    if (payload_size > sizeof(long long)) {
-        SecCFDERCreateError(kSecDERErrorUnsupportedNumberType, CFSTR("Number too large"), NULL, error);
-        return NULL;
-
-    }
-
-    long long value = 0;
-    
-    if (payload_size > 0) {
-        if ((*payload & 0x80) == 0x80)
-            value = -1; // Negative integers fill with 1s so we end up negative.
-        
-        const uint8_t* const payload_end = payload + payload_size;
-        
-        for (const uint8_t *payload_byte = payload;
-             payload_byte < payload_end;
-             ++payload_byte) {
-            value <<= 8;
-            value |= *payload_byte;
-        }
-    }
-
-    *number = CFNumberCreate(allocator, kCFNumberLongLongType, &value);
-    
-    if (*number == NULL) {
-        SecCFDERCreateError(kSecDERErrorAllocationFailure, CFSTR("Number allocation failed"), NULL, error);
-        return NULL;
-    }
-    
-    return payload + payload_size;
-}
-
-
-static inline uint8_t byte_of(size_t byteNumber, long long value)
-{
-    return value >> (8 * (byteNumber - 1));
-}
-
-static inline size_t bytes_when_encoded(long long value)
-{
-    size_t bytes_encoded = sizeof(long long);
-    
-    uint8_t first_byte = byte_of(bytes_encoded, value);
-    
-    // Skip initial 0xFFs or 0x00
-    if (first_byte == 0xFF || first_byte == 0x00) {
-        do {
-            --bytes_encoded;
-        } while (bytes_encoded > 1 && (byte_of(bytes_encoded, value) == first_byte));
-        
-        if ((first_byte & 0x80) != (byte_of(bytes_encoded, value) & 0x80))
-            bytes_encoded += 1;
-    }
-    
-    return bytes_encoded;
-}
-
-size_t der_sizeof_number(CFNumberRef data, CFErrorRef *error)
-{
-    long long value;
-    if (!CFNumberGetValue(data, kCFNumberLongLongType, &value))
-        return 0;
-    
-    return ccder_sizeof(CCDER_INTEGER, bytes_when_encoded(value));
-}
-
-uint8_t* der_encode_number(CFNumberRef number, CFErrorRef *error,
-                           const uint8_t *der, uint8_t *der_end)
-{
-    long long value;
-    if (!CFNumberGetValue(number, kCFNumberLongLongType, &value))
-        return NULL;
-    
-    size_t first_byte_to_include = bytes_when_encoded(value);
-    
-    if (!der_end || der_end - der < first_byte_to_include)
-        return NULL;
-
-    // Put the bytes we should include on the end.
-    for(int bytes_included = 0; bytes_included < first_byte_to_include; ++bytes_included)
-    {
-        --der_end;
-        *der_end = value & 0xFF;
-        value >>= 8;
-    }
-
-    return ccder_encode_tl(CCDER_INTEGER, first_byte_to_include, der, der_end);
-
-}