1/*
2 * Copyright (c) 2023 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "secure_char.h"
17
18#include "securec.h"
19#include "netstack_log.h"
20
21namespace OHOS::NetStack::Secure {
22SecureChar::SecureChar() : data_(std::make_unique<char[]>(0)) {}
23
24SecureChar::~SecureChar()
25{
26    (void)memset_s(data_.get(), length_, 0, length_);
27}
28
29SecureChar::SecureChar(const std::string &SecureChar)
30    : length_(SecureChar.length()), data_(std::make_unique<char[]>(length_ + 1))
31{
32    if (length_ == 0) {
33        return;
34    }
35    data_.get()[length_] = 0;
36    if (memcpy_s(data_.get(), length_, SecureChar.c_str(), length_) != EOK) {
37        NETSTACK_LOGE("memcpy_s failed!");
38        return;
39    }
40}
41
42SecureChar::SecureChar(const uint8_t *SecureChar, size_t length)
43{
44    data_ = std::make_unique<char[]>(length + 1);
45    length_ = length;
46    data_.get()[length_] = 0;
47    if (memcpy_s(data_.get(), length_, SecureChar, length_) != EOK) {
48        NETSTACK_LOGE("memcpy_s failed!");
49    }
50}
51
52SecureChar::SecureChar(const SecureChar &SecureChar)
53{
54    *this = SecureChar;
55}
56
57SecureChar &SecureChar::operator=(const SecureChar &SecureChar)
58{
59    if (this != &SecureChar) {
60        if (SecureChar.Length() == 0) {
61            return *this;
62        }
63        length_ = SecureChar.Length();
64        data_ = std::make_unique<char[]>(length_ + 1);
65        data_.get()[length_] = 0;
66        if (memcpy_s(data_.get(), length_, SecureChar.Data(), length_) != EOK) {
67            NETSTACK_LOGE("memcpy_s failed!");
68        }
69    }
70    return *this;
71}
72
73const char *SecureChar::Data() const
74{
75    return data_.get();
76}
77
78size_t SecureChar::Length() const
79{
80    return length_;
81}
82} // namespace OHOS::NetStack::Secure