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* globals.cc (ro_u_nwfs): New R/O unicode string.

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* mount.cc (fs_info::update): Check for NWFS filesystem.  Set
	has_buggy_basic_info, if so.  Add comment to explain why.
	(fillout_mntent): Add "nwfs" string to fs_names array.
	* mount.h (enum fs_info_type): Add nwfs.
	(class fs_info): Add has_buggy_basic_info status flag.  Add accessors
	for has_buggy_basic_info and is_nwfs.
	* fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Accommodate
	filesystems with broken FileBasicInformation handling.
	* path.cc (symlink_info::check): Ditto.
	* path.h (path_conv::has_buggy_basic_info): Add method.
This commit is contained in:
Corinna Vinschen
2010-01-12 14:47:46 +00:00
parent 4ee93264fd
commit c04ed45d82
7 changed files with 71 additions and 28 deletions
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45
winsup/cygwin/fhandler_disk_file.cc
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@ -337,12 +337,25 @@ fhandler_base::fstat_by_handle (struct __stat64 *buf)
than a filename, so it needs a really big buffer for no good reason
since we don't need the name anyway. So we just call the three info
classes necessary to get all information required by stat(2). */
FILE_BASIC_INFORMATION fbi;
union {
FILE_BASIC_INFORMATION fbi;
FILE_NETWORK_OPEN_INFORMATION fnoi;
} fi;
FILE_STANDARD_INFORMATION fsi;
FILE_INTERNAL_INFORMATION fii;
status = NtQueryInformationFile (get_handle (), &io, &fbi, sizeof fbi,
FileBasicInformation);
if (pc.has_buggy_basic_info ())
{
status = NtQueryInformationFile (get_handle (), &io, &fi, sizeof fi,
FileNetworkOpenInformation);
/* The timestamps are in the same relative memory location, only
the DOS attributes have to be moved. */
fi.fbi.FileAttributes = fi.fnoi.FileAttributes;
}
else
status = NtQueryInformationFile (get_handle (), &io, &fi.fbi, sizeof fi.fbi,
FileBasicInformation);
if (!NT_SUCCESS (status))
{
debug_printf ("%p = NtQueryInformationFile(%S, FileBasicInformation)",
@ -369,20 +382,20 @@ fhandler_base::fstat_by_handle (struct __stat64 *buf)
support a change timestamp. In that case use the LastWriteTime
entry, as in other calls to fstat_helper. */
if (pc.is_rep_symlink ())
fbi.FileAttributes &= ~FILE_ATTRIBUTE_DIRECTORY;
pc.file_attributes (fbi.FileAttributes);
fi.fbi.FileAttributes &= ~FILE_ATTRIBUTE_DIRECTORY;
pc.file_attributes (fi.fbi.FileAttributes);
return fstat_helper (buf,
fbi.ChangeTime.QuadPart ? &fbi.ChangeTime
: &fbi.LastWriteTime,
&fbi.LastAccessTime,
&fbi.LastWriteTime,
&fbi.CreationTime,
get_dev (),
fsi.EndOfFile.QuadPart,
fsi.AllocationSize.QuadPart,
fii.FileId.QuadPart,
fsi.NumberOfLinks,
fbi.FileAttributes);
fi.fbi.ChangeTime.QuadPart ? &fi.fbi.ChangeTime
: &fi.fbi.LastWriteTime,
&fi.fbi.LastAccessTime,
&fi.fbi.LastWriteTime,
&fi.fbi.CreationTime,
get_dev (),
fsi.EndOfFile.QuadPart,
fsi.AllocationSize.QuadPart,
fii.FileId.QuadPart,
fsi.NumberOfLinks,
fi.fbi.FileAttributes);
}
int __stdcall