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* fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Call

Browse Source 
file_get_fnoi instead of NtQueryInformationFile.
	* path.cc (file_get_fnoi): New helper function to collect a
	FILE_NETWORK_OPEN_INFORMATION block.
	(symlink_info::check): Call file_get_fnoi rather than
	NtQueryInformationFile to collect a FILE_NETWORK_OPEN_INFORMATION block.
	* path.h (file_get_fnoi): Declare.
This commit is contained in:
Corinna Vinschen
2011-12-13 11:54:28 +00:00
parent 74365d9715
commit 3780d205cd
4 changed files with 56 additions and 40 deletions
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81
winsup/cygwin/path.cc
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@@ -1180,6 +1180,48 @@ path_conv::is_binary ()
&& (bin == SCS_32BIT_BINARY || bin == SCS_64BIT_BINARY);
}
/* Helper function to fill the fnoi datastructure for a file. */
NTSTATUS
file_get_fnoi (HANDLE h, bool skip_network_open_inf,
PFILE_NETWORK_OPEN_INFORMATION pfnoi)
{
NTSTATUS status;
IO_STATUS_BLOCK io;
/* Some FSes (Netapps) don't implement FileNetworkOpenInformation. */
status = skip_network_open_inf ? STATUS_INVALID_PARAMETER
: NtQueryInformationFile (h, &io, pfnoi, sizeof *pfnoi,
FileNetworkOpenInformation);
if (status == STATUS_INVALID_PARAMETER || status == STATUS_NOT_IMPLEMENTED)
{
/* Apart from accessing Netapps, this also occurs when accessing SMB
share root dirs hosted on NT4 (STATUS_INVALID_PARAMETER), or when
accessing SMB share root dirs from NT4 (STATUS_NOT_IMPLEMENTED). */
FILE_BASIC_INFORMATION fbi;
FILE_STANDARD_INFORMATION fsi;
status = NtQueryInformationFile (h, &io, &fbi, sizeof fbi,
FileBasicInformation);
if (NT_SUCCESS (status))
{
memcpy (pfnoi, &fbi, 4 * sizeof (LARGE_INTEGER));
if (NT_SUCCESS (NtQueryInformationFile (h, &io, &fsi,
sizeof fsi,
FileStandardInformation)))
{
pfnoi->EndOfFile.QuadPart = fsi.EndOfFile.QuadPart;
pfnoi->AllocationSize.QuadPart
= fsi.AllocationSize.QuadPart;
}
else
pfnoi->EndOfFile.QuadPart
= pfnoi->AllocationSize.QuadPart = 0;
pfnoi->FileAttributes = fbi.FileAttributes;
}
}
return status;
}
/* Normalize a Win32 path.
/'s are converted to \'s in the process.
All duplicate \'s, except for 2 leading \'s, are deleted.
@@ -2422,44 +2464,9 @@ restart:
}
else
{
PFILE_NETWORK_OPEN_INFORMATION pfnoi = conv_hdl.fnoi ();
/* Netapps don't implement FileNetworkOpenInformation. */
status = fs.is_netapp ()
? STATUS_INVALID_PARAMETER
: NtQueryInformationFile (h, &io, pfnoi, sizeof *pfnoi,
FileNetworkOpenInformation);
if (status == STATUS_INVALID_PARAMETER
|| status == STATUS_NOT_IMPLEMENTED)
{
/* Apart from accessing Netapps, this also occurs when
accessing SMB share root dirs hosted on NT4
(STATUS_INVALID_PARAMETER), or when trying to access
SMB share root dirs from NT4 (STATUS_NOT_IMPLEMENTED). */
FILE_BASIC_INFORMATION fbi;
FILE_STANDARD_INFORMATION fsi;
status = NtQueryInformationFile (h, &io, &fbi, sizeof fbi,
FileBasicInformation);
if (NT_SUCCESS (status))
{
memcpy (pfnoi, &fbi, 4 * sizeof (LARGE_INTEGER));
if (NT_SUCCESS (NtQueryInformationFile (h, &io, &fsi,
sizeof fsi,
FileStandardInformation)))
{
pfnoi->EndOfFile.QuadPart = fsi.EndOfFile.QuadPart;
pfnoi->AllocationSize.QuadPart
= fsi.AllocationSize.QuadPart;
}
else
pfnoi->EndOfFile.QuadPart
= pfnoi->AllocationSize.QuadPart = 0;
pfnoi->FileAttributes = fbi.FileAttributes;
}
}
status = file_get_fnoi (h, fs.is_netapp (), conv_hdl.fnoi ());
if (NT_SUCCESS (status))
fileattr = pfnoi->FileAttributes;
fileattr = conv_hdl.fnoi ()->FileAttributes;
}
}
if (!NT_SUCCESS (status))