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* path.cc (symlink_info::check): In case of ERROR_SHARING_VIOLATION and

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ERROR_ACCESS_DENIED, try to get file attributes by using directory
	functions.
This commit is contained in:
Corinna Vinschen
2007-08-14 16:19:13 +00:00
parent cb8e4b58f5
commit 3b98bacfd6
2 changed files with 22 additions and 3 deletions
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6
winsup/cygwin/ChangeLog
View File

@@ -1,3 +1,9 @@
2007-08-14 Corinna Vinschen <corinna@vinschen.de>
* path.cc (symlink_info::check): In case of ERROR_SHARING_VIOLATION and
ERROR_ACCESS_DENIED, try to get file attributes by using directory
functions.
2007-08-14 Corinna Vinschen <corinna@vinschen.de>
* path.cc (fs_info::update): Correctly handle the volume root directory.

19
winsup/cygwin/path.cc
View File

@@ -3518,16 +3518,29 @@ symlink_info::check (char *path, const suffix_info *suffixes, unsigned opt)
GetFileAttributes for a non-existant file an a Win9x share,
GetLastError returns ERROR_INVALID_FUNCTION. Go figure!
Also, GetFileAttributes fails with ERROR_SHARING_VIOLATION
if the file is locked exclusively by another process.
if the file is locked exclusively by another process, or with
ERROR_ACCESS_DENIED if the file exists but the user has no right
to open the file with FILE_READ_ATTRIBUTES.
If we don't special handle this here, the file is accidentally
treated as non-existant. */
DWORD win_error = GetLastError ();
if (win_error == ERROR_INVALID_FUNCTION)
win_error = ERROR_FILE_NOT_FOUND;
else if (win_error == ERROR_SHARING_VIOLATION)
else if (win_error == ERROR_SHARING_VIOLATION
|| win_error == ERROR_ACCESS_DENIED)
{
/* This is easily converted to NT functions at one point,
see fhandler_base::fstat_by_name. */
WIN32_FIND_DATA data;
HANDLE f = FindFirstFile (suffix.path, &data);
if (f != INVALID_HANDLE_VALUE)
{
FindClose (f);
fileattr = data.dwFileAttributes;
}
else
fileattr = 0;
ext_tacked_on = !!*ext_here;
fileattr = 0;
goto file_not_symlink;
}
if (set_error (geterrno_from_win_error (win_error, EACCES)))