[PATCH v4 0/1] MR6347: advpack: DelNode support the ADN_DEL_IF_EMPTY flag

[Anders Kjersem (＠anders)]

Fixes a bug where `rundll32.exe advpack.dll,DelNodeRunDLL32 "c:\test",1` is only supposed to delete "test" if the directory is empty.

Also causes the [DelDirs Inf section](https://www.mdgx.com/INF_web/deldirs.htm) to work correctly.

Notes:
- I changed the code so it ignores the result of `SetFileAttributesW` because the user might not have FILE_WRITE_ATTRIBUTES even if they have DELETE rights. This seems to match Windows (XP NTFS).

--
  v4: advpack: DelNode support ADN_DEL_IF_EMPTY flag

https://gitlab.winehq.org/wine/wine/-/merge_requests/6347

[PATCH v4 1/1] advpack: DelNode support ADN_DEL_IF_EMPTY flag

[anders]

From: anders

---
 dlls/advpack/files.c         | 10 ++++++++--
 dlls/advpack/tests/advpack.c |  9 ++++++++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/dlls/advpack/files.c b/dlls/advpack/files.c
index 2bf2481cca4..fa247cb3f07 100644
--- a/dlls/advpack/files.c
+++ b/dlls/advpack/files.c
@@ -320,6 +320,9 @@ static HRESULT DELNODE_recurse_dirtree(LPWSTR fname, DWORD flags)
         BOOL done = TRUE;
         int fname_len = lstrlenW(fname);

+        if (flags & ADN_DEL_IF_EMPTY)
+            goto onlyemptydir;
+
         /* Generate a path with wildcard suitable for iterating */
         if (fname_len && fname[fname_len-1] != '\') fname[fname_len++] = '\';
         lstrcpyW(fname + fname_len, L"*");
@@ -347,8 +350,10 @@ static HRESULT DELNODE_recurse_dirtree(LPWSTR fname, DWORD flags)

if (done)
         {
+onlyemptydir:
             TRACE("%s: directory\n", debugstr_w(fname));
-            if (SetFileAttributesW(fname, FILE_ATTRIBUTE_NORMAL) && RemoveDirectoryW(fname))
+            SetFileAttributesW(fname, FILE_ATTRIBUTE_NORMAL);
+            if (RemoveDirectoryW(fname))
             {
                 ret = S_OK;
             }
@@ -357,7 +362,8 @@ static HRESULT DELNODE_recurse_dirtree(LPWSTR fname, DWORD flags)
     else
     {
         TRACE("%s: file\n", debugstr_w(fname));
-        if (SetFileAttributesW(fname, FILE_ATTRIBUTE_NORMAL) && DeleteFileW(fname))
+        SetFileAttributesW(fname, FILE_ATTRIBUTE_NORMAL);
+        if (DeleteFileW(fname))
         {
             ret = S_OK;
         }
diff --git a/dlls/advpack/tests/advpack.c b/dlls/advpack/tests/advpack.c
index 33d5f4bc52b..b41e6558ed5 100644
--- a/dlls/advpack/tests/advpack.c
+++ b/dlls/advpack/tests/advpack.c
@@ -160,6 +160,10 @@ static void delnode_test(void)
     hr = pDelNode(lstrcatA(currDir, "\DelNodeTestDir"), 0);
     ok (hr == S_OK, "DelNode failed deleting an empty directory\n");
     currDir[currDirLen] = '\0';
+    CreateDirectoryA("DelNodeTestDir", NULL);
+    hr = pDelNode(lstrcatA(currDir, "\DelNodeTestDir"), ADN_DEL_IF_EMPTY);
+    ok (hr == S_OK, "DelNode ADN_DEL_IF_EMPTY failed deleting an empty directory\n");
+    currDir[currDirLen] = '\0';

/* Test deletion of a directory containing one file. */
     CreateDirectoryA("DelNodeTestDir", NULL);
@@ -167,7 +171,10 @@ static void delnode_test(void)
         CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
     assert(hn != INVALID_HANDLE_VALUE);
     CloseHandle(hn);
-    hr = pDelNode(lstrcatA(currDir, "\DelNodeTestDir"), 0);
+    lstrcatA(currDir, "\DelNodeTestDir");
+    hr = pDelNode(currDir, ADN_DEL_IF_EMPTY);
+    ok (hr == E_FAIL, "DelNode ADN_DEL_IF_EMPTY should not delete non-empty\n");
+    hr = pDelNode(currDir, 0);
     ok (hr == S_OK, "DelNode failed deleting a directory containing one file\n");
     currDir[currDirLen] = '\0';

[PATCH v4 1/1] advpack: DelNode support ADN_DEL_IF_EMPTY flag

[Marvin]

Hi,

It looks like your patch introduced the new failures shown below.
Please investigate and fix them before resubmitting your patch.
If they are not new, fixing them anyway would help a lot. Otherwise
please ask for the known failures list to be updated.

The tests also ran into some preexisting test failures. If you know how
to fix them that would be helpful. See the TestBot job for the details:

The full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=147982

Your paranoid android.

=== debian11b (64 bit WoW report) ===

dinput:
joystick8.c:5762: Test failed: input 1: WaitForSingleObject returned 0x102
joystick8.c:5763: Test failed: input 1: got 0 WM_INPUT messages
joystick8.c:5766: Test failed: input 1: got dwType 0
joystick8.c:5767: Test failed: input 1: got header.dwSize 0
joystick8.c:5769: Test failed: input 1: got hDevice 0000000000000000
joystick8.c:5771: Test failed: input 1: got dwSizeHid 0
joystick8.c:5772: Test failed: input 1: got dwCount 0