1/*
2 * Copyright (C) 2022 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#ifndef PARCEL_UTIL_H
17#define PARCEL_UTIL_H
18
19#include "parcel.h"
20
21namespace OHOS {
22namespace Accessibility {
23#define READ_PARCEL_AND_RETURN_FALSE_IF_FAIL(type, parcel, data)            \
24    do {                                                                    \
25        if (!(parcel).Read##type(data)) {                                   \
26            HILOG_ERROR("Fail to read %{public}s type from parcel", #type); \
27            return false;                                                   \
28        }                                                                   \
29    } while (0)
30
31#define WRITE_PARCEL_AND_RETURN_FALSE_IF_FAIL(type, parcel, data)               \
32    do {                                                                        \
33        if (!(parcel).Write##type(data)) {                                      \
34            HILOG_ERROR("Fail to write %{public}s type from parcel", #type);    \
35            return false;                                                       \
36        }                                                                       \
37    } while (0)
38
39inline bool ContainerSecurityVerify(Parcel &parcel, int readContainerSize, size_t val_size)
40{
41    size_t readAbleDataSize = (parcel).GetReadableBytes();
42    size_t readSize = static_cast<size_t>(readContainerSize);
43    if ((readSize > readAbleDataSize) || (val_size < readSize)) {
44        HILOG_ERROR("Failed to read container, readSize = %{public}zu, readAbleDataSize = %{public}zu",
45            readSize, readAbleDataSize);
46        return false;
47    }
48    return true;
49}
50} // namespace Accessibility
51} // namespace OHOS
52#endif // PARCEL_UTIL_H