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| author | Karsten Blees <karsten.blees@gmail.com> | 2026-01-09 20:04:59 +0000 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2026-01-09 18:32:54 -0800 |
| commit | 48bc5094de4d2c549efd82780d4488071955d4ff (patch) | |
| tree | 88375c0d7e186c025b29d490e47657dc738af2e9 | |
| parent | mingw: don't call `GetFileAttributes()` twice in `mingw_lstat()` (diff) | |
| download | git-48bc5094de4d2c549efd82780d4488071955d4ff.tar.gz git-48bc5094de4d2c549efd82780d4488071955d4ff.zip | |
mingw: implement `stat()` with symlink support
With respect to symlinks, the current `mingw_stat()` implementation is
almost identical to `mingw_lstat()`: except for the file type (`st_mode
& S_IFMT`), it returns information about the link rather than the target.
Implement `mingw_stat()` by opening the file handle requesting minimal
permissions, and then calling `GetFileInformationByHandle()` on it. This
way, all links are resolved by the Windows file system layer.
Signed-off-by: Karsten Blees <karsten.blees@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | compat/mingw.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/compat/mingw.c b/compat/mingw.c index ae6826948e..13970ae729 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -1027,9 +1027,26 @@ int mingw_lstat(const char *file_name, struct stat *buf) { return do_lstat(0, file_name, buf); } + int mingw_stat(const char *file_name, struct stat *buf) { - return do_lstat(1, file_name, buf); + wchar_t wfile_name[MAX_PATH]; + HANDLE hnd; + int result; + + /* open the file and let Windows resolve the links */ + if (xutftowcs_path(wfile_name, file_name) < 0) + return -1; + hnd = CreateFileW(wfile_name, 0, + FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, NULL, + OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); + if (hnd == INVALID_HANDLE_VALUE) { + errno = err_win_to_posix(GetLastError()); + return -1; + } + result = get_file_info_by_handle(hnd, buf); + CloseHandle(hnd); + return result; } int mingw_fstat(int fd, struct stat *buf) |