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* fhandler.cc (fhandler_base::open): Don't open file with WRITE_DAC

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access on remote filesystem.  Explain why.
	* fhandler_disk_file.cc (fhandler_disk_file::mkdir): Ditto for
	directories.
	* fhandler_socket.cc (fhandler_socket::bind): Ditto for sockets.
	* path.cc (symlink_worker): Ditto for symlinks.
This commit is contained in:
Corinna Vinschen
2011-07-05 09:59:34 +00:00
parent 3dce4ce653
commit fcacca02dd
5 changed files with 34 additions and 8 deletions
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8
winsup/cygwin/fhandler_socket.cc
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@ -970,8 +970,12 @@ fhandler_socket::bind (const struct sockaddr *name, int namelen)
/* If the filesystem supports ACLs, we will overwrite the DACL after the
call to NtCreateFile. This requires a handle with READ_CONTROL and
WRITE_DAC access, otherwise get_file_sd and set_file_sd both have to
open the file again. */
if (pc.has_acls ())
open the file again.
FIXME: On remote NTFS shares open sometimes fails because even the
creator of the file doesn't have the right to change the DACL.
I don't know what setting that is or howq to recognize such a share,
so for now we don't request WRITE_DAC on remote drives. */
if (pc.has_acls () && !pc.isremote ())
access |= READ_CONTROL | WRITE_DAC;
status = NtCreateFile (&fh, access, pc.get_object_attr (attr, sa), &io,