1 /*
2 * Copyright (c) 2025 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 "lstat_core.h"
17
18 #include <memory>
19 #include <tuple>
20
21 #include <securec.h>
22
23 #include "file_utils.h"
24 #include "filemgmt_libhilog.h"
25 #include "stat_instantiator.h"
26
27 namespace OHOS::FileManagement::ModuleFileIO {
28 using namespace std;
29
DoLstat(const string & path)30 FsResult<FsStat *> LstatCore::DoLstat(const string &path)
31 {
32 std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup) *> lstat_req = { new (std::nothrow) uv_fs_t,
33 FsUtils::FsReqCleanup };
34 if (!lstat_req) {
35 HILOGE("Failed to request heap memory.");
36 return FsResult<FsStat *>::Error(ENOMEM);
37 }
38 int ret = uv_fs_lstat(nullptr, lstat_req.get(), path.c_str(), nullptr);
39 if (ret < 0) {
40 HILOGE("Failed to get stat of file, ret: %{public}d", ret);
41 return FsResult<FsStat *>::Error(ret);
42 }
43
44 #if !defined(WIN_PLATFORM) && !defined(IOS_PLATFORM)
45 size_t length = path.length() + 1;
46 auto chars = std::make_unique<char[]>(length);
47 ret = strncpy_s(chars.get(), length, path.c_str(), length - 1);
48 if (ret != EOK) {
49 HILOGE("Copy file path failed!");
50 return FsResult<FsStat *>::Error(ret);
51 }
52 struct FileInfo info = { true, move(chars), {} };
53 auto arg = CreateSharedPtr<FileInfo>(move(info));
54 if (arg == nullptr) {
55 HILOGE("Failed to request heap memory.");
56 return FsResult<FsStat *>::Error(ENOMEM);
57 }
58 auto stat = StatInstantiator::InstantiateStat(lstat_req->statbuf, arg);
59 #else
60 auto stat = StatInstantiator::InstantiateStat(lstat_req->statbuf);
61 #endif
62 if (stat == nullptr) {
63 HILOGE("Failed to InstantiateStat.");
64 return FsResult<FsStat *>::Error(ENOMEM);
65 }
66 return FsResult<FsStat *>::Success(stat);
67 }
68
69 } // namespace OHOS::FileManagement::ModuleFileIO