[PATCH v11 0/1] MR5020: kernelbase/file: implement CopyFile2

[Kartavya Vashishtha (＠kvashis)]

copy implementation of CopyFileExW into CopyFile2,
then implement CopyFileExW in terms of CopyFile2

should fix https://bugs.winehq.org/show_bug.cgi?id=55897, as Python does not use any new functionality nor the callback parameter from CopyFile2.

I have not written extensive documentation since the original function didn't seem to have any; I can do that if recommended.

I originally intended to implement the callback functionality in this MR as well, but realized that would be better as a follow-up.

--
  v11: kernelbase: Implement CopyFile2()
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/5020

[PATCH v11 1/1] kernelbase: Implement CopyFile2()

[Kartavya Vashishtha]

From: Kartavya Vashishtha <sendtokartavya(a)gmail.com>

---
 dlls/kernel32/kernel32.spec     |  1 +
 dlls/kernelbase/file.c          | 50 +++++++++++++++++++++++++++++----
 dlls/kernelbase/kernelbase.spec |  2 +-
 3 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/dlls/kernel32/kernel32.spec b/dlls/kernel32/kernel32.spec
index 9d5dc076acb..28a3f554374 100644
--- a/dlls/kernel32/kernel32.spec
+++ b/dlls/kernel32/kernel32.spec
@@ -257,6 +257,7 @@
 @ stdcall -import ConvertThreadToFiberEx(ptr long)
 @ stdcall ConvertToGlobalHandle(long)
 @ stdcall -import CopyContext(ptr long ptr)
+@ stdcall -import CopyFile2(wstr wstr ptr)
 @ stdcall CopyFileA(str str long)
 @ stdcall CopyFileExA (str str ptr ptr ptr long)
 @ stdcall -import CopyFileExW(wstr wstr ptr ptr ptr long)
diff --git a/dlls/kernelbase/file.c b/dlls/kernelbase/file.c
index 67a7a34249a..0df1de8f8e2 100644
--- a/dlls/kernelbase/file.c
+++ b/dlls/kernelbase/file.c
@@ -487,13 +487,15 @@ BOOL WINAPI DECLSPEC_HOTPATCH AreFileApisANSI(void)
     return !oem_file_apis;
 }
 
-
-/***********************************************************************
- *	CopyFileExW   (kernelbase.@)
+/******************************************************************************
+ *  copy_file
  */
-BOOL WINAPI CopyFileExW( const WCHAR *source, const WCHAR *dest, LPPROGRESS_ROUTINE progress,
-                         void *param, BOOL *cancel_ptr, DWORD flags )
+static BOOL copy_file( const WCHAR *source, const WCHAR *dest, COPYFILE2_EXTENDED_PARAMETERS *params )
 {
+    DWORD flags = params ? params->dwCopyFlags : 0;
+    BOOL *cancel_ptr = params ? params->pfCancel : NULL;
+    PCOPYFILE2_PROGRESS_ROUTINE progress = params ? params->pProgressRoutine : NULL;
+
     static const int buffer_size = 65536;
     HANDLE h1, h2;
     FILE_BASIC_INFORMATION info;
@@ -502,6 +504,11 @@ BOOL WINAPI CopyFileExW( const WCHAR *source, const WCHAR *dest, LPPROGRESS_ROUT
     BOOL ret = FALSE;
     char *buffer;
 
+    if (cancel_ptr)
+        FIXME("pfCancel is not supported\n");
+    if (progress)
+        FIXME("PCOPYFILE2_PROGRESS_ROUTINE is not supported\n");
+
     if (!source || !dest)
     {
         SetLastError( ERROR_INVALID_PARAMETER );
@@ -577,7 +584,7 @@ BOOL WINAPI CopyFileExW( const WCHAR *source, const WCHAR *dest, LPPROGRESS_ROUT
             count -= res;
         }
     }
-    ret =  TRUE;
+    ret = TRUE;
 done:
     /* Maintain the timestamp of source file to destination file and read-only attribute */
     info.FileAttributes &= FILE_ATTRIBUTE_READONLY;
@@ -589,6 +596,37 @@ done:
     return ret;
 }
 
+/***********************************************************************
+ *	CopyFile2   (kernelbase.@)
+ */
+HRESULT WINAPI CopyFile2( const WCHAR *source, const WCHAR *dest, COPYFILE2_EXTENDED_PARAMETERS *params )
+{
+    return copy_file(source, dest, params) ? S_OK : HRESULT_FROM_WIN32(GetLastError());
+}
+
+
+/***********************************************************************
+ *	CopyFileExW   (kernelbase.@)
+ */
+BOOL WINAPI CopyFileExW( const WCHAR *source, const WCHAR *dest, LPPROGRESS_ROUTINE progress,
+                         void *param, BOOL *cancel_ptr, DWORD flags )
+{
+    COPYFILE2_EXTENDED_PARAMETERS params;
+
+    if (progress)
+        FIXME("LPPROGRESS_ROUTINE is not supported\n");
+    if (cancel_ptr)
+        FIXME("cancel_ptr is not supported\n");
+
+    params.dwSize = sizeof(params);
+    params.dwCopyFlags = flags;
+    params.pProgressRoutine = NULL;
+    params.pvCallbackContext = NULL;
+    params.pfCancel = NULL;
+
+    return copy_file( source, dest, ¶ms );
+}
+
 
 /**************************************************************************
  *	CopyFileW   (kernelbase.@)
diff --git a/dlls/kernelbase/kernelbase.spec b/dlls/kernelbase/kernelbase.spec
index d3bd59a78e3..a133380a27a 100644
--- a/dlls/kernelbase/kernelbase.spec
+++ b/dlls/kernelbase/kernelbase.spec
@@ -168,7 +168,7 @@
 @ stdcall ConvertThreadToFiberEx(ptr long)
 @ stdcall ConvertToAutoInheritPrivateObjectSecurity(ptr ptr ptr ptr long ptr)
 @ stdcall CopyContext(ptr long ptr)
-# @ stub CopyFile2
+@ stdcall CopyFile2(wstr wstr ptr)
 @ stdcall CopyFileExW(wstr wstr ptr ptr ptr long)
 @ stdcall CopyFileW(wstr wstr long)
 @ stdcall -arch=x86_64 CopyMemoryNonTemporal(ptr ptr long) ntdll.RtlCopyMemoryNonTemporal
-- 
GitLab

https://gitlab.winehq.org/wine/wine/-/merge_requests/5020