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 "rmdir_core.h"
17
18 #include <cstring>
19 #include <dirent.h>
20 #include <filesystem>
21 #include <tuple>
22 #include <unistd.h>
23
24 #include <sys/stat.h>
25 #include <sys/types.h>
26
27 #include "filemgmt_libhilog.h"
28
29 namespace OHOS {
30 namespace FileManagement {
31 namespace ModuleFileIO {
32 using namespace std;
33
34 #ifdef __MUSL__
RmDirent(const string & fpath)35 static int32_t RmDirent(const string &fpath)
36 {
37 std::filesystem::path strToPath(fpath);
38 std::error_code errCode;
39 std::uintmax_t num = std::filesystem::remove_all(strToPath, errCode);
40 if (errCode.value() != ERRNO_NOERR) {
41 HILOGD("Failed to remove directory, error code: %{public}d", errCode.value());
42 return errCode.value();
43 }
44 if (!num || std::filesystem::exists(strToPath, errCode)) {
45 HILOGE("Failed to remove directory, dirPath does not exist");
46 return ENOENT;
47 }
48 if (errCode.value() != ERRNO_NOERR) {
49 HILOGE("fs exists fail, error code: %{public}d", errCode.value());
50 return errCode.value();
51 }
52 return ERRNO_NOERR;
53 }
54
55 #else
RmDirent(const string & fpath)56 static int32_t RmDirent(const string &fpath)
57 {
58 std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup)*> scandirReq = {
59 new (std::nothrow) uv_fs_t, FsUtils::FsReqCleanup };
60 if (!scandirReq) {
61 HILOGE("Failed to request heap memory.");
62 return ENOMEM;
63 }
64 int ret = 0;
65 ret = uv_fs_scandir(nullptr, scandirReq.get(), fpath.c_str(), 0, nullptr);
66 if (ret < 0) {
67 HILOGE("Failed to scandir, ret: %{public}d", ret);
68 return ret;
69 }
70 uv_dirent_t dent;
71 while (uv_fs_scandir_next(scandirReq.get(), &dent) != UV_EOF) {
72 string filePath = fpath + "/" + string(dent.name);
73 if (dent.type == UV_DIRENT_FILE) {
74 std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup)*> unlinkReq = {
75 new (std::nothrow) uv_fs_t, FsUtils::FsReqCleanup };
76 if (!unlinkReq) {
77 HILOGE("Failed to request heap memory.");
78 return ENOMEM;
79 }
80 ret = uv_fs_unlink(nullptr, unlinkReq.get(), filePath.c_str(), nullptr);
81 if (ret < 0) {
82 HILOGE("Failed to unlink file, ret: %{public}d", ret);
83 return ret;
84 }
85 } else if (dent.type == UV_DIRENT_DIR) {
86 auto rmDirentRes = RmDirent(filePath);
87 if (rmDirentRes) {
88 return rmDirentRes;
89 }
90 }
91 }
92 std::unique_ptr<uv_fs_t, decltype(FsUtils::FsReqCleanup)*> rmdirReq = {
93 new (std::nothrow) uv_fs_t, FsUtils::FsReqCleanup};
94 if (!rmdirReq) {
95 HILOGE("Failed to request heap memory.");
96 return ENOMEM;
97 }
98 ret = uv_fs_rmdir(nullptr, rmdirReq.get(), fpath.c_str(), nullptr);
99 if (ret < 0) {
100 HILOGE("Failed to rmdir empty dir, ret: %{public}d", ret);
101 return ret;
102 }
103 return ERRNO_NOERR;
104 }
105 #endif
106
DoRmdirent(const string & fpath)107 FsResult<void> RmdirentCore::DoRmdirent(const string &fpath)
108 {
109 if (fpath.empty()) {
110 HILOGE("Invalid path");
111 return FsResult<void>::Error(EINVAL);
112 }
113
114 auto err = RmDirent(fpath);
115 if (err) {
116 return FsResult<void>::Error(err);
117 }
118 return FsResult<void>::Success();
119 }
120 } // namespace ModuleFileIO
121 } // namespace FileManagement
122 } // namespace OHOS