1 /*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "Utils.h"
18
19 namespace android {
20
operator <(const Vector<uint8_t> & lhs,const Vector<uint8_t> & rhs)21 bool operator<(const Vector<uint8_t> &lhs, const Vector<uint8_t> &rhs) {
22 if (lhs.size() < rhs.size()) {
23 return true;
24 } else if (lhs.size() > rhs.size()) {
25 return false;
26 }
27 return memcmp((void *)lhs.array(), (void *)rhs.array(), rhs.size()) < 0;
28 }
29
ByteArrayToHexString(const uint8_t * in_buffer,size_t length)30 std::string ByteArrayToHexString(const uint8_t* in_buffer, size_t length) {
31 static const char kHexChars[] = "0123456789ABCDEF";
32
33 // Each input byte creates two output hex characters.
34 std::string out_buffer(length * 2, '\0');
35
36 for (size_t i = 0; i < length; ++i) {
37 char byte = in_buffer[i];
38 out_buffer[(i * 2)] = kHexChars[(byte >> 4) & 0xf];
39 out_buffer[(i * 2) + 1] = kHexChars[byte & 0xf];
40 }
41 return out_buffer;
42 }
43
44 } // namespace android
45