Sync/Port: Metafile code from wine.
Patches by Jacek Caban, Daniel Lehman, Zhiyi Zhang. Gabriel Ivancescu, Michael Stefaniuc, Francois Gouget, Nikolay Sivov Dmitry Timoshkov, Andrew EiKum, Piotr Caban and Alexandre Julliard.
This commit is dedicated to George Bisoc!
In SeCaptureLuidAndAttributesArray we must ensure that we don't go onto a potential integer overflow scenario by checking against the maximum limit threshold the kernel states. In addition, write an explicit name macro for the value.
Certainly due to copy-pasta error from the original code.
A consequence of this oversight, was that the IoGetDeviceObjectPointer()
calls on these device names, in fltmgr!DriverEntry() couldn't work.
(See drivers/filters/fltmgr/Interface.c, line 1880 and below.)
- Moving the IDB_* with their corresponding TBICON_* defines.
- Reordering the BITMAP resources in the same order the defines are defined.
- Fixing values for IDS_READY and IDS_TOOLBAR_TEXT.
Indeed the count was based on the number of elements in TBBUTTON arrays;
however for some of the toolbars, extra entries corresponding to
separators are present, and thus the resulting number of elements is
always larger than the number of actual buttons for which an image is
associated. Passing this (larger) count to the InitImageList() function
therefore made image insertion fail after a certain point.
Now we pass an exact number of *images* instead.
- NtQuerySymbolicLinkObject(): Use an intermediate variable for the object header.
- Simplify code in ObpLookupEntryDirectory() by calling ObpReleaseLookupContextObject() instead.
- Use TAG_OBJECT_TYPE instead of hardcoded tag values.
- Disentangle the usage of ObpAcquireDirectoryLockExclusive() when it's
used only for accessing a directory structure, or as part of a lookup
operation.
The Obp*DirectoryLock*() -- both shared and exclusive -- functions
are only for locking an OB directory, for reading or writing its
structure members.
When performing lookup operations (insertions/deletions of entries
within a directory), use a ObpAcquireLookupContextLock() function that
exclusively locks the directory and saves extra lock state, that can
be used by ObpReleaseLookupContextObject() for cleanup.
- Add documentation for these functions.
The function might assign the flag yet it could possibly fail on creating a DACL and insert an "access allowed" right to the access entry within the DACL. In this case, make sure we actually succeeded on all the tasks and THEN assign the flag that the DACL is truly present.
Also, make sure that the Current buffer size variable gets its new size so that we avoid overidding the memory of the DACL if the security descriptor wants both a DACL and SACL and so that happens that the DACL memory gets overwritten by the SACL.
Implement the portion chunk of code that is responsible for setting the system access control list (SACL) to the World security descriptor, based from SeWorldSid (World security identifier).
This is an addendum to
0.4.15-dev-3174-g dda9c3979e CORE-17769 and
0.4.15-dev-3147-g 3bf7e3ac13 CORE-17754 CORE-17755
We have not seen this happening in real-life yet, but some code-fragments within co_IntSetScrollInfo()
e.g. line 628 if (nBar == SB_CTL) do clearly indicate that nBar can be 2 (SB_CTL).
Some lines below we definitely must not access those 4 static arrays out of bounds then via nBar as access index!
Ftr with a bit of grepping I also found some calls like NtUserSetScrollInfo(Wnd, SB_CTL, &Info, FALSE);
e.g: in win32ss/user/user32/controls/scrollbar.c so I am pretty sure nBar == 2 can happen in practice within co_IntSetScrollInfo().
I question whether any of those reads/writes to those static arrays (or the comparisons) would make any sense on index 2,
so we should aim to eliminate them altogether in the future.
Fixes CORE-17769 'Rapps Listview manual resize may erroneously not draw the triangles sometimes'
This could happen for both: themed and unthemed.
CORE-17769 was a regression introduced by 0.4.14-dev-1134-g 00adb1a3f9
We don't really like the added state in form of the static variables,
but the patch works good from a pure testing-perspective.
Many Thanks to the patches author: Doug Lyons
Avoids spamming
(ntoskrnl\ob\obwait.c:441) Failed to reference the handle with status 0xc0000008
CAutoComplete::FinishCompletion(): Remove two useless 'if (m_pThread || !m_hThread)'
tests: No need to check these after each code instruction...
