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* ntdll.h (NtSetAttributesFile): New inline function.

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* fhandler_disk_file.cc (fhandler_disk_file::fchmod): Use
	NtSetAttributesFile.
	* path.cc (symlink_worker): Ditto.
	* syscalls.cc (unlink_nt): Ditto.
	(rename): Omit FILE_SHARE_DELETE when opening files on Samba.  Add
	comment to explain why.
This commit is contained in:
Corinna Vinschen
2008-10-20 19:30:06 +00:00
parent 87ab6bfb62
commit 669bdeb822
5 changed files with 38 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
winsup/cygwin/syscalls.cc
View File

@@ -399,7 +399,6 @@ unlink_nt (path_conv &pc)
HANDLE fh;
OBJECT_ATTRIBUTES attr;
IO_STATUS_BLOCK io;
FILE_BASIC_INFORMATION fbi;
ACCESS_MASK access = DELETE;
/* If the R/O attribute is set, we have to open the file with
@@ -473,13 +472,7 @@ unlink_nt (path_conv &pc)
/* Get rid of read-only attribute. */
if (access & FILE_WRITE_ATTRIBUTES)
{
fbi.CreationTime.QuadPart = fbi.LastAccessTime.QuadPart =
fbi.LastWriteTime.QuadPart = fbi.ChangeTime.QuadPart = 0LL;
fbi.FileAttributes = (pc.file_attributes () & ~FILE_ATTRIBUTE_READONLY)
?: FILE_ATTRIBUTE_NORMAL;
NtSetInformationFile (fh, &io, &fbi, sizeof fbi, FileBasicInformation);
}
NtSetAttributesFile (fh, pc.file_attributes () & ~FILE_ATTRIBUTE_READONLY);
FILE_DISPOSITION_INFORMATION disp = { TRUE };
status = NtSetInformationFile (fh, &io, &disp, sizeof disp,
@@ -487,22 +480,16 @@ unlink_nt (path_conv &pc)
if (!NT_SUCCESS (status))
{
syscall_printf ("Setting delete disposition failed, status = %p", status);
/* Restore R/O attributes. */
if (access & FILE_WRITE_ATTRIBUTES)
{
/* Restore R/O attributes. */
fbi.FileAttributes = pc.file_attributes ();
NtSetInformationFile (fh, &io, &fbi, sizeof fbi,
FileBasicInformation);
}
NtSetAttributesFile (fh, pc.file_attributes ());
}
else if ((access & FILE_WRITE_ATTRIBUTES) && !pc.isdir ())
{
/* Restore R/O attribute to accommodate hardlinks. Don't try this
with directories! For some reason the below NtSetInformationFile
changes the disposition for delete back to FALSE, at least on XP. */
fbi.FileAttributes = pc.file_attributes ();
NtSetInformationFile (fh, &io, &fbi, sizeof fbi,
FileBasicInformation);
NtSetAttributesFile (fh, pc.file_attributes ());
}
NtClose (fh);
@@ -1727,9 +1714,13 @@ rename (const char *oldpath, const char *newpath)
|| (!removepc && dstpc->has_attribute (FILE_ATTRIBUTE_READONLY))))
start_transaction (old_trans, trans);
/* DELETE is required to rename a file. */
/* DELETE is required to rename a file. Samba (only some versions?) doesn't
like the FILE_SHARE_DELETE mode if the file has the R/O attribute set
and returns STATUS_ACCESS_DENIED in that case. */
status = NtOpenFile (&fh, DELETE, oldpc.get_object_attr (attr, sec_none_nih),
&io, FILE_SHARE_VALID_FLAGS,
&io,
oldpc.fs_is_samba () ? FILE_SHARE_READ | FILE_SHARE_WRITE
: FILE_SHARE_VALID_FLAGS,
FILE_OPEN_FOR_BACKUP_INTENT
| (oldpc.is_rep_symlink () ? FILE_OPEN_REPARSE_POINT : 0));
if (!NT_SUCCESS (status))
@@ -1769,14 +1760,8 @@ rename (const char *oldpath, const char *newpath)
__seterrno_from_nt_status (status);
goto out;
}
FILE_BASIC_INFORMATION fbi;
fbi.CreationTime.QuadPart = fbi.LastAccessTime.QuadPart =
fbi.LastWriteTime.QuadPart = fbi.ChangeTime.QuadPart = 0LL;
fbi.FileAttributes = (dstpc->file_attributes ()
& ~FILE_ATTRIBUTE_READONLY)
?: FILE_ATTRIBUTE_NORMAL;
status = NtSetInformationFile (nfh, &io, &fbi, sizeof fbi,
FileBasicInformation);
status = NtSetAttributesFile (nfh, dstpc->file_attributes ()
& ~FILE_ATTRIBUTE_READONLY);
NtClose (nfh);
if (!NT_SUCCESS (status))
{