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* fhandler.cc (fhandler_base::open): When creating a file on a

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filesystem supporting ACLs, create the file with WRITE_DAC access.
	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.
	* security.cc (get_file_sd): Always call GetSecurityInfo for directories
	on XP and Server 2003.  Improve comment to explain why.
	(set_file_attribute): Explicitely cast mode_t value to bool in call to
	get_file_sd.
	* wincap.h (wincaps::use_get_sec_info_on_dirs): New element.
	* wincap.cc: Implement above element throughout.
This commit is contained in:
Corinna Vinschen
2011-03-08 14:26:15 +00:00
parent 6777e53972
commit 69d7815eae
8 changed files with 85 additions and 21 deletions
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13
winsup/cygwin/fhandler_socket.cc
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@@ -996,10 +996,17 @@ fhandler_socket::bind (const struct sockaddr *name, int namelen)
HANDLE fh;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
ULONG access = DELETE | FILE_GENERIC_WRITE;
status = NtCreateFile (&fh, DELETE | FILE_GENERIC_WRITE,
pc.get_object_attr (attr, sa), &io, NULL, fattr,
0, FILE_CREATE,
/* 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 ())
access |= READ_CONTROL | WRITE_DAC;
status = NtCreateFile (&fh, access, pc.get_object_attr (attr, sa), &io,
NULL, fattr, 0, FILE_CREATE,
FILE_NON_DIRECTORY_FILE
| FILE_SYNCHRONOUS_IO_NONALERT
| FILE_OPEN_FOR_BACKUP_INTENT,