1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef BERBERIS_KERNEL_API_UNISTD_EMULATION_H_
18 #define BERBERIS_KERNEL_API_UNISTD_EMULATION_H_
19 
20 #include <unistd.h>
21 
22 namespace berberis {
23 
24 // Fake /proc/self/exe link for programs which use it to get files by path relative to their main
25 // executable.  Everything else is handled as in regular readlink(2)/readlinkat(2). See: b/34729927
26 ssize_t ReadLinkForGuest(const char* path, char* buf, size_t buf_size);
27 ssize_t ReadLinkAtForGuest(int dirfd, const char* path, char* buf, size_t buf_size);
28 
29 }  // namespace berberis
30 
31 #endif  // BERBERIS_KERNEL_API_UNISTD_EMULATION_H_
32