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 "edm_utils.h"
17
18#include <codecvt>
19#include "edm_constants.h"
20#include "edm_log.h"
21#include "securec.h"
22
23namespace OHOS {
24namespace EDM {
25const std::string ERROR_STRING = "error";
26const std::u16string ERROR_USTRING = u"error";
27
28ErrCode EdmUtils::ParseStringToInt(const std::string &str, int32_t &result)
29{
30    int64_t tmp;
31    int32_t ret = EdmUtils::ParseStringToLong(str, tmp);
32    result = tmp;
33    return ret;
34}
35
36ErrCode EdmUtils::ParseStringToLong(const std::string &str, int64_t &result)
37{
38    char* end = nullptr;
39    const char* p = str.c_str();
40    errno = 0;
41    result = strtol(p, &end, EdmConstants::DECIMAL);
42    if (errno == ERANGE || end ==p || *end != '\0') {
43        EDMLOGE("EdmUtils ParseStringToLong: parse str failed: %{public}s", p);
44        return EdmReturnErrCode::PARAM_ERROR;
45    }
46    return ERR_OK;
47}
48
49std::string EdmUtils::Utf16ToUtf8(const std::u16string &str16)
50{
51    if (str16 == ERROR_USTRING) {
52        return ERROR_STRING;
53    }
54    std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> convert(ERROR_STRING);
55    std::string result = convert.to_bytes(str16);
56    return result == ERROR_STRING ? "" : result;
57}
58
59void EdmUtils::ClearString(std::string &str)
60{
61    std::fill(str.begin(), str.end(), '\0');
62    str.clear();
63}
64
65void EdmUtils::ClearCharArray(char* &str, size_t size)
66{
67    if (str != nullptr) {
68        memset_s(str, size, '\0', size);
69        free(str);
70        str = nullptr;
71    }
72}
73} // namespace EDM
74} // namespace OHOS