apio/Luna
1
1
Fork 0
Code Issues Pull Requests Actions Projects Releases 8 Wiki Activity

libos: Support not following symlinks

Browse Source
This commit is contained in:
apio 2023-05-20 21:48:18 +02:00
parent cb205c851c
commit 7a8ef52408
Signed by: apio
GPG Key ID: B8A7D06E42258954
2 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
libos/include/os/FileSystem.h
View File

@ -9,11 +9,11 @@ namespace os
{
namespace FileSystem
{
bool exists(const Path& path);
bool exists(const Path& path, bool follow_symlinks = true);
bool is_directory(const Path& path);
bool is_directory(const Path& path, bool follow_symlinks = false);
Result<void> stat(const Path& path, struct stat& st);
Result<void> stat(const Path& path, struct stat& st, bool follow_symlinks = true);
Result<void> create_directory(StringView path, mode_t mode);

13
libos/src/FileSystem.cpp
View File

@ -12,28 +12,29 @@
namespace os::FileSystem
{
bool exists(const Path& path)
bool exists(const Path& path, bool follow_symlinks)
{
struct stat st;
if (stat(path, st).has_error()) return false;
if (stat(path, st, follow_symlinks).has_error()) return false;
return true;
}
bool is_directory(const Path& path)
bool is_directory(const Path& path, bool follow_symlinks)
{
struct stat st;
if (stat(path, st).has_error()) return false;
if (stat(path, st, follow_symlinks).has_error()) return false;
return S_ISDIR(st.st_mode);
}
Result<void> stat(const Path& path, struct stat& st)
Result<void> stat(const Path& path, struct stat& st, bool follow_symlinks)
{
long rc =
syscall(SYS_fstatat, path.dirfd(), path.name().chars(), &st, path.is_empty_path() ? AT_EMPTY_PATH : 0);
syscall(SYS_fstatat, path.dirfd(), path.name().chars(), &st,
(int)((path.is_empty_path() ? AT_EMPTY_PATH : 0) | (follow_symlinks ? 0 : AT_SYMLINK_NOFOLLOW)));
return Result<void>::from_syscall(rc);
}