[3/4] ntdll: Implement FileIdInformation class in NtQueryInformationFile.

[Sebastian Lackner]

Based on a patch by Jonathan Doron.

Signed-off-by: Sebastian Lackner <sebastian at fds-team.de>
---

Changes:
* Use fd_get_file_info instead of calling fstat directly.
* Remove code for VolumeSerialNumber - we can add this back, but we also
  have to update kernel32 code then, and other places where the serial
  number is returned.
* Initialize all bytes of FileId.

 dlls/ntdll/file.c       |   12 +++++++++++-
 dlls/ntdll/tests/file.c |    2 +-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/file.c b/dlls/ntdll/file.c
index f3ff163861d..fd7f3dd955a 100644
--- a/dlls/ntdll/file.c
+++ b/dlls/ntdll/file.c
@@ -2375,7 +2375,7 @@ NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
         0,                                             /* FileRenameInformationBypassAccessCheck */
         0,                                             /* FileLinkInformationBypassAccessCheck */
         0,                                             /* FileVolumeNameInformation */
-        0,                                             /* FileIdInformation */
+        sizeof(FILE_ID_INFORMATION),                   /* FileIdInformation */
         0,                                             /* FileIdExtdDirectoryInformation */
         0,                                             /* FileReplaceCompletionInformation */
         0,                                             /* FileHardLinkFullIdInformation */
@@ -2617,6 +2617,16 @@ NTSTATUS WINAPI NtQueryInformationFile( HANDLE hFile, PIO_STATUS_BLOCK io,
             }
         }
         break;
+    case FileIdInformation:
+        if (fd_get_file_info( fd, &st, &attr ) == -1) io->u.Status = FILE_GetNtStatus();
+        else
+        {
+            FILE_ID_INFORMATION *info = ptr;
+            info->VolumeSerialNumber = 0;  /* FIXME */
+            memset( &info->FileId, 0, sizeof(info->FileId) );
+            *(ULONGLONG *)&info->FileId = st.st_ino;
+        }
+        break;
     default:
         FIXME("Unsupported class (%d)\n", class);
         io->u.Status = STATUS_NOT_IMPLEMENTED;
diff --git a/dlls/ntdll/tests/file.c b/dlls/ntdll/tests/file.c
index e95815c0ac4..1a02ce5eaa5 100644
--- a/dlls/ntdll/tests/file.c
+++ b/dlls/ntdll/tests/file.c
@@ -3277,7 +3277,7 @@ static void test_file_id_information(void)
     status = pNtQueryInformationFile( h, &io, &fid, sizeof(fid), FileIdInformation );
     if (status == STATUS_NOT_IMPLEMENTED || status == STATUS_INVALID_INFO_CLASS)
     {
-        skip( "FileIdInformation not supported\n" );
+        win_skip( "FileIdInformation not supported\n" );
         CloseHandle( h );
         return;
     }
-- 
2.11.0