1 /*
2 * Copyright (c) 2024 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 <securec.h>
17
18 #include "utils/file.h"
19 #include "utils/log.h"
20
RealPath(const char * path,char * resolvedPath,size_t bufferSize)21 bool RealPath(const char *path, char *resolvedPath, size_t bufferSize)
22 {
23 if (path == nullptr || resolvedPath == nullptr) {
24 return false;
25 }
26 size_t pathLen = strlen(path);
27 if (pathLen == 0 || pathLen > PATH_MAX) {
28 HILOG_WARN("File path is illeage");
29 return false;
30 }
31 char buffer[PATH_MAX + 1] = { 0 };
32 if (realpath(path, buffer) == NULL) {
33 // Maybe file does not exist.
34 HILOG_WARN("File path: %{public}s full path failure", path);
35 return false;
36 }
37 if (strcpy_s(resolvedPath, bufferSize - 1, buffer) != 0) {
38 return false;
39 }
40 return true;
41 }