[ros-diffs] [cgutman] 46458: [NTOSKRNL] - Construct a valid device path for ZwOpenFile - Button events are now recognized by the power manager (tested on VirtualBox)

Author: cgutman
Date: Fri Mar 26 03:41:08 2010
New Revision: 46458
URL: http://svn.reactos.org/svn/reactos?rev=46458&view=rev
Log:
[NTOSKRNL]
- Construct a valid device path for ZwOpenFile
- Button events are now recognized by the power manager (tested on VirtualBox)
Modified:
    trunk/reactos/ntoskrnl/po/events.c
Modified: trunk/reactos/ntoskrnl/po/events.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/po/events.c?rev=4…
==============================================================================
--- trunk/reactos/ntoskrnl/po/events.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/po/events.c [iso-8859-1] Fri Mar 26 03:41:08 2010
@@ -157,6 +157,8 @@
        BOOLEAN Arrival;
        ULONG Caps;
        NTSTATUS Status;
+       UNICODE_STRING DeviceName;
+       UNICODE_STRING DeviceNamePrefix = RTL_CONSTANT_STRING(L"\\??\\");
        DPRINT("PopAddRemoveSysCapsCallback(%p %p)\n",
                NotificationStructure, Context);
@@ -177,10 +179,20 @@
        {
                DPRINT("Arrival of %wZ\n", Notification->SymbolicLinkName);
+               DeviceName.Length = 0;
+               DeviceName.MaximumLength =
Notification->SymbolicLinkName->MaximumLength + DeviceNamePrefix.MaximumLength;
+               DeviceName.Buffer = ExAllocatePool(PagedPool, DeviceName.MaximumLength);
+               if (!DeviceName.Buffer) return STATUS_INSUFFICIENT_RESOURCES;
+
+               RtlCopyUnicodeString(&DeviceName, &DeviceNamePrefix);
+               RtlAppendUnicodeStringToString(&DeviceName,
Notification->SymbolicLinkName);
+
+               DPRINT("Opening handle to %wZ\n", &DeviceName);
+
                /* Open the device */
                InitializeObjectAttributes(
                        &ObjectAttributes,
-                       Notification->SymbolicLinkName,
+                       &DeviceName,
                        OBJ_KERNEL_HANDLE,
                        NULL,
                        NULL);