win32: stat(2) succeeds if fetching extra metadata fails

Some files can't be opened to fetch additional metadata.  When
that happens allow stat(2) to successfully return what data it
has.

In a few cases where the inode number is used to determine if
files are identical ignore invalid inode numbers.

1 files changed, 3 insertions, 11 deletions

diff --git a/win32/mingw.c b/win32/mingw.c
index 3713fea95..84522d3ea 100644
--- a/win32/mingw.c
+++ b/win32/mingw.c
@@ -441,22 +441,14 @@ static int do_lstat(int follow, const char *file_name, struct mingw_stat *buf)
 #if ENABLE_FEATURE_EXTRA_FILE_DATA
                 fh = CreateFile(file_name, 0, 0, NULL, OPEN_EXISTING,
                                                         FILE_FLAG_BACKUP_SEMANTICS, NULL);
-                if (fh == INVALID_HANDLE_VALUE)
-                        goto error;
-
-                if (GetFileInformationByHandle(fh, &hdata)) {
+                if (fh != INVALID_HANDLE_VALUE &&
+                                GetFileInformationByHandle(fh, &hdata)) {
                         buf->st_dev = hdata.dwVolumeSerialNumber;
                         buf->st_ino = hdata.nFileIndexLow |
                                                         (((ino_t)hdata.nFileIndexHigh)<<32);
                         buf->st_nlink = S_ISDIR(buf->st_mode) ? 2 : hdata.nNumberOfLinks;
-                        CloseHandle(fh);
-                }
-                else {
- error:
-                        errno = err_win_to_posix(GetLastError());
-                        CloseHandle(fh);
-                        return -1;
                 }
+                CloseHandle(fh);
 #endif
 
                 /*