[PATCH 3/7] server: Fail to set delete disposition on a non-empty directory.

[Dmitry Timoshkov]

Signed-off-by: Dmitry Timoshkov 
---
 dlls/ntdll/tests/file.c |  3 ---
 server/fd.c             | 26 ++++++++++++++++++++++++++
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c
index 56a438b973..67a211c803 100644
--- a/dlls/ntdll/tests/file.c
+++ b/dlls/ntdll/tests/file.c
@@ -3038,17 +3038,14 @@ todo_wine
     CloseHandle( handle2 );
     fdi.DoDeleteFile = TRUE;
     res = pNtSetInformationFile( handle, &io, &fdi, sizeof fdi, FileDispositionInformation );
-    todo_wine
     ok( res == STATUS_DIRECTORY_NOT_EMPTY, "unexpected FileDispositionInformation result (expected STATUS_DIRECTORY_NOT_EMPTY, got %x)\n", res );
     fileDeleted = DeleteFileA( buffer );
     ok( fileDeleted, "File should have been deleted\n" );
     buffer[dirpos] = '\0';
     CloseHandle( handle );
     fileDeleted = GetFileAttributesA( buffer ) == INVALID_FILE_ATTRIBUTES && GetLastError() == ERROR_FILE_NOT_FOUND;
-    todo_wine
     ok( !fileDeleted, "Directory shouldn't have been deleted\n" );
     fileDeleted = RemoveDirectoryA( buffer );
-todo_wine
     ok( fileDeleted, "Directory should have been deleted\n" );
 }

diff --git a/server/fd.c b/server/fd.c
index fa174f597e..3184926d18 100644
--- a/server/fd.c
+++ b/server/fd.c
@@ -31,6 +31,9 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#endif
 #ifdef HAVE_POLL_H
 #include <poll.h>
 #endif
@@ -2277,6 +2280,22 @@ static struct fd *get_handle_fd_obj( struct process *process, obj_handle_t handl
     return fd;
 }

+static int is_directory_empty( struct fd *fd )
+{
+    DIR *dir;
+    int count = 0;
+
+    if ((dir = fdopendir( fd->unix_fd )))
+    {
+        while (readdir( dir ) != NULL && count <= 2)
+            count++;
+
+        closedir( dir );
+    }
+
+    return count <= 2;
+}
+
 /* set disposition for the fd */
 static void set_fd_disposition( struct fd *fd, int unlink )
 {
@@ -2314,6 +2333,13 @@ static void set_fd_disposition( struct fd *fd, int unlink )
         return;
     }

+    /* can't unlink a non-empty directory */
+    if (unlink && S_ISDIR( st.st_mode ) && !is_directory_empty( fd ))
+    {
+        set_error( STATUS_DIRECTORY_NOT_EMPTY );
+        return;
+    }
+
     fd->closed->unlink = unlink || (fd->options & FILE_DELETE_ON_CLOSE);
 }