From: =?UTF-8?q?Matthias=20A=C3=9Fhauer?= <mha1993@xxxxxxx> CreateFileW() requires FILE_FLAG_BACKUP_SEMANTICS to create a directory handle [1] and errors out with ERROR_ACCESS_DENIED without this flag. Fall back to accessing Directory handles this way. [1] https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew#directories This fixes https://github.com/git-for-windows/git/issues/5068 Signed-off-by: Matthias Aßhauer <mha1993@xxxxxxx> --- compat/mingw.c | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/compat/mingw.c b/compat/mingw.c index 5d69ae32f4b9..2dd5cbcaee0d 100644 --- a/compat/mingw.c +++ b/compat/mingw.c @@ -588,13 +588,24 @@ static int mingw_open_existing(const wchar_t *filename, int oflags, ...) &security_attributes, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if (handle == INVALID_HANDLE_VALUE) { DWORD err = GetLastError(); + if (err == ERROR_ACCESS_DENIED) { + DWORD attrs = GetFileAttributesW(filename); + if (attrs != INVALID_FILE_ATTRIBUTES && (attrs & FILE_ATTRIBUTE_DIRECTORY)) + handle = CreateFileW(filename, access, + FILE_SHARE_WRITE | FILE_SHARE_READ | FILE_SHARE_DELETE, + &security_attributes, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL| FILE_FLAG_BACKUP_SEMANTICS, NULL); + } - /* See `mingw_open_append()` for why we have this conversion. */ - if (err == ERROR_INVALID_PARAMETER) - err = ERROR_PATH_NOT_FOUND; + if (handle == INVALID_HANDLE_VALUE) { + err = GetLastError(); - errno = err_win_to_posix(err); - return -1; + /* See `mingw_open_append()` for why we have this conversion. */ + if (err == ERROR_INVALID_PARAMETER) + err = ERROR_PATH_NOT_FOUND; + + errno = err_win_to_posix(err); + return -1; + } } fd = _open_osfhandle((intptr_t)handle, oflags | O_BINARY); -- gitgitgadget
