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
21 namespace OHOS {
22 namespace 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
ContainerSecurityVerify(Parcel & parcel,int readContainerSize,size_t val_size)39 inline 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