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newlib-cygwin
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* fhandler.cc (fhandler_base::open): Work around windows bug when 

CreateFile() with dwDesiredAccess == 0 called on remote share returns
valid handle even if file doesn't exist.
This commit is contained in:
Egor Duda 2001-06-20 07:44:33 +00:00
parent ae036f47c5
commit 9cc97acbd0
2 changed files with 17 additions and 0 deletions
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6
winsup/cygwin/ChangeLog
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@ -1,3 +1,9 @@
2001-06-30 Egor Duda <deo@logos-m.ru>
* fhandler.cc (fhandler_base::open): Work around windows bug when
CreateFile() with dwDesiredAccess == 0 called on remote share returns
valid handle even if file doesn't exist.
2001-06-20 Egor Duda <deo@logos-m.ru> 2001-06-20 Egor Duda <deo@logos-m.ru>
* fhandler_socket.cc (fhandler_socket::signal_secret_event): New * fhandler_socket.cc (fhandler_socket::signal_secret_event): New

11
winsup/cygwin/fhandler.cc
View File

@ -370,6 +370,17 @@ fhandler_base::open (int flags, mode_t mode)
if (get_device () == FH_SERIAL) if (get_device () == FH_SERIAL)
file_attributes |= FILE_FLAG_OVERLAPPED; file_attributes |= FILE_FLAG_OVERLAPPED;
/* CreateFile() with dwDesiredAccess == 0 when called on remote
share returns some handle, even if file doesn't exist. This code
works around this bug. */
if (get_query_open () &&
isremote () &&
creation_distribution == OPEN_EXISTING &&
GetFileAttributes (get_win32_name ()) == (DWORD) -1)
{
set_errno (ENOENT);
goto done;
}
x = CreateFileA (get_win32_name (), access, shared, x = CreateFileA (get_win32_name (), access, shared,
&sec_none, creation_distribution, &sec_none, creation_distribution,
file_attributes, file_attributes,