ntoskrnl.exe: Implement NtBuildNumber.

dlls/ntoskrnl.exe/ntoskrnl.c

@@ -60,6 +60,7 @@ WINE_DECLARE_DEBUG_CHANNEL(plugplay);
 
 BOOLEAN KdDebuggerEnabled = FALSE;
 ULONG InitSafeBootMode = 0;
+USHORT NtBuildNumber = 0;
 
 extern LONG CALLBACK vectored_handler( EXCEPTION_POINTERS *ptrs );
 
@@ -2952,6 +2953,7 @@ BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
         handler = RtlAddVectoredExceptionHandler( TRUE, vectored_handler );
 #endif
         KeQueryTickCount( &count );  /* initialize the global KeTickCount */
+        NtBuildNumber = NtCurrentTeb()->Peb->OSBuildNumber;
         break;
     case DLL_PROCESS_DETACH:
         if (reserved) break;

dlls/ntoskrnl.exe/ntoskrnl.exe.spec

@@ -751,7 +751,7 @@
 @ stdcall NtAllocateLocallyUniqueId(ptr)
 @ stdcall NtAllocateUuids(ptr ptr ptr ptr)
 @ stdcall NtAllocateVirtualMemory(long ptr long ptr long long)
-@ stub NtBuildNumber
+@ extern NtBuildNumber
 @ stdcall NtClose(long)
 @ stdcall NtConnectPort(ptr ptr ptr ptr ptr ptr ptr ptr)
 @ stdcall NtCreateEvent(ptr long ptr long long)

dlls/ntoskrnl.exe/tests/driver.c

@@ -624,6 +624,18 @@ static void test_lookaside_list(void)
     ExDeleteNPagedLookasideList(&list);
 }
 
+static void test_version(void)
+{
+    USHORT *pNtBuildNumber;
+    ULONG build;
+
+    pNtBuildNumber = get_proc_address("NtBuildNumber");
+    ok(!!pNtBuildNumber, "Could not get pointer to NtBuildNumber\n");
+
+    PsGetVersion(NULL, NULL, &build, NULL);
+    ok(*pNtBuildNumber == build, "Expected build number %u, got %u\n", build, *pNtBuildNumber);
+}
+
 static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *stack, ULONG_PTR *info)
 {
     ULONG length = stack->Parameters.DeviceIoControl.OutputBufferLength;
@@ -654,6 +666,7 @@ static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *st
     test_init_funcs();
     test_load_driver();
     test_sync();
+    test_version();
     test_stack_callout();
     test_lookaside_list();