[PATCH 1/2] kernelbase: Query FileStandardInformation instead of FileEndOfFileInformation in SetFilePointerEx().

[Paul Gofman]

Signed-off-by: Paul Gofman 
---
     These patches fix Fall in Labirinth game which is using VX Ace RPG Maker and Enigma2 (not sure if and
     how those two are related). The engine introduces a virtual file system by hotpatching a number of functions.
     The issues preventing game start are which these patches are fixing:
     - Hooked NtQueryInformationFile doesn't understand FileEndOfFileInformation and returns success while leaving
       the output data unitialized;
     - Hooked NtQueryDirectoryFile gets confused by the access mask given to NtOpenFile for directory file (patch 2).

dlls/kernelbase/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/kernelbase/file.c b/dlls/kernelbase/file.c
index 15bfe89df7a..cd6b62409ff 100644
--- a/dlls/kernelbase/file.c
+++ b/dlls/kernelbase/file.c
@@ -3629,7 +3629,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH SetFilePointerEx( HANDLE file, LARGE_INTEGER dista
     LONGLONG pos;
     IO_STATUS_BLOCK io;
     FILE_POSITION_INFORMATION info;
-    FILE_END_OF_FILE_INFORMATION eof;
+    FILE_STANDARD_INFORMATION eof;

switch(method)
     {
@@ -3642,7 +3642,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH SetFilePointerEx( HANDLE file, LARGE_INTEGER dista
         pos = info.CurrentByteOffset.QuadPart + distance.QuadPart;
         break;
     case FILE_END:
-        if (NtQueryInformationFile( file, &io, &eof, sizeof(eof), FileEndOfFileInformation ))
+        if (NtQueryInformationFile( file, &io, &eof, sizeof(eof), FileStandardInformation ))
             goto error;
         pos = eof.EndOfFile.QuadPart + distance.QuadPart;
         break;

[PATCH 2/2] kernelbase: Use FILE_LIST_DIRECTORY instead of GENERIC_READ in FindFirstFileExW().

[Paul Gofman]

Signed-off-by: Paul Gofman 
---
 dlls/kernelbase/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/kernelbase/file.c b/dlls/kernelbase/file.c
index cd6b62409ff..9f530455967 100644
--- a/dlls/kernelbase/file.c
+++ b/dlls/kernelbase/file.c
@@ -1205,7 +1205,7 @@ HANDLE WINAPI DECLSPEC_HOTPATCH FindFirstFileExW( LPCWSTR filename, FINDEX_INFO_
     attr.SecurityDescriptor = NULL;
     attr.SecurityQualityOfService = NULL;

-    status = NtOpenFile( &info->handle, GENERIC_READ | SYNCHRONIZE, &attr, &io,
+    status = NtOpenFile( &info->handle, FILE_LIST_DIRECTORY | SYNCHRONIZE, &attr, &io,
                          FILE_SHARE_READ | FILE_SHARE_WRITE,
                          FILE_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT | FILE_OPEN_FOR_BACKUP_INTENT );
     if (status != STATUS_SUCCESS)