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* fhandler_disk_file.cc (fhandler_base::fstat_by_name): Use

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NtQueryFullAttributesFile instead of FindFirstFile.
	(fhandler_base::fstat_fs): Drop check for exec_state.  Drop check for
	invalid characters.
	* ntdll.h (struct _FILE_NETWORK_OPEN_INFORMATION): Define.
	(NtQueryFullAttributesFile): Declare.
This commit is contained in:
Corinna Vinschen
2007-07-19 17:22:34 +00:00
parent 91d2f6eebf
commit e25b3402ac
3 changed files with 43 additions and 29 deletions
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51
winsup/cygwin/fhandler_disk_file.cc
View File

@ -272,34 +272,35 @@ fhandler_base::fstat_by_handle (struct __stat64 *buf)
int __stdcall
fhandler_base::fstat_by_name (struct __stat64 *buf)
{
int res;
HANDLE handle;
WIN32_FIND_DATA local;
int res = -1;
NTSTATUS status;
OBJECT_ATTRIBUTES attr;
FILE_NETWORK_OPEN_INFORMATION fnoi;
if (!pc.exists ())
{
debug_printf ("already determined that pc does not exist");
set_errno (ENOENT);
res = -1;
}
else if ((handle = FindFirstFile (pc, &local)) != INVALID_HANDLE_VALUE)
else if (NT_SUCCESS (status = NtQueryFullAttributesFile (
pc.get_object_attr (attr, sec_none_nih), &fnoi)))
{
FindClose (handle);
if (pc.is_rep_symlink ())
local.dwFileAttributes &= ~FILE_ATTRIBUTE_DIRECTORY;
pc.file_attributes (local.dwFileAttributes);
fnoi.FileAttributes &= ~FILE_ATTRIBUTE_DIRECTORY;
pc.file_attributes (fnoi.FileAttributes);
res = fstat_helper (buf,
local.ftLastWriteTime, /* see fstat_helper comment */
local.ftLastAccessTime,
local.ftLastWriteTime,
local.ftCreationTime,
pc.volser (),
(ULONGLONG) local.nFileSizeHigh << 32
| local.nFileSizeLow,
-1LL,
0ULL,
1,
local.dwFileAttributes);
*(FILETIME *) (fnoi.ChangeTime.QuadPart
? &fnoi.ChangeTime
: &fnoi.LastWriteTime),
*(FILETIME *) &fnoi.LastAccessTime,
*(FILETIME *) &fnoi.LastWriteTime,
*(FILETIME *) &fnoi.CreationTime,
pc.volser (),
fnoi.EndOfFile.QuadPart,
fnoi.AllocationSize.QuadPart,
0ULL,
1,
fnoi.FileAttributes);
}
else if (pc.isdir ())
{
@ -309,8 +310,7 @@ fhandler_base::fstat_by_name (struct __stat64 *buf)
}
else
{
debug_printf ("FindFirstFile failed for '%s', %E", (char *) pc);
__seterrno ();
__seterrno_from_nt_status (status);
res = -1;
}
return res;
@ -330,14 +330,7 @@ fhandler_base::fstat_fs (struct __stat64 *buf)
else
return fstat_by_handle (buf);
}
/* If we don't care if the file is executable or we already know if it is,
then just do a "query open" as it is apparently much faster. */
if (pc.exec_state () != dont_know_if_executable)
{
if (pc.fs_is_fat () && !strpbrk (get_win32_name (), "?*|<>"))
return fstat_by_name (buf);
query_open (query_stat_control);
}
query_open (query_stat_control);
if (!(oret = open_fs (open_flags, 0)) && get_errno () == EACCES)
{
/* If we couldn't open the file, try a query open with no permissions.