[PATCH v9 1/2] Added support for class FILE_INFORMATION_ALLOCATION in setFileInformationByHandle

[Stéphane Bacri]

From: Stéphane Bacri

---
 dlls/kernelbase/file.c |  5 ++++-
 dlls/ntdll/unix/file.c | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/dlls/kernelbase/file.c b/dlls/kernelbase/file.c
index f0dedfe3b14..416892ef14c 100644
--- a/dlls/kernelbase/file.c
+++ b/dlls/kernelbase/file.c
@@ -3678,7 +3678,6 @@ BOOL WINAPI DECLSPEC_HOTPATCH SetFileInformationByHandle( HANDLE file, FILE_INFO
     switch (class)
     {
     case FileNameInfo:
-    case FileAllocationInfo:
     case FileStreamInfo:
     case FileIdBothDirectoryInfo:
     case FileIdBothDirectoryRestartInfo:
@@ -3693,6 +3692,10 @@ BOOL WINAPI DECLSPEC_HOTPATCH SetFileInformationByHandle( HANDLE file, FILE_INFO
         SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
         return FALSE;

+    case FileAllocationInfo:
+        status = NtSetInformationFile( file, &io, info, size, FileAllocationInformation );
+        break;
+
     case FileEndOfFileInfo:
         status = NtSetInformationFile( file, &io, info, size, FileEndOfFileInformation );
         break;
diff --git a/dlls/ntdll/unix/file.c b/dlls/ntdll/unix/file.c
index faef06ae084..98ff4cffe61 100644
--- a/dlls/ntdll/unix/file.c
+++ b/dlls/ntdll/unix/file.c
@@ -4693,6 +4693,24 @@ NTSTATUS WINAPI NtSetInformationFile( HANDLE handle, IO_STATUS_BLOCK *io,
         else status = STATUS_INVALID_PARAMETER_3;
         break;

+    case FileAllocationInformation:
+#ifdef __APPLE__
+            WARN( "setting file allocation information not supported on this platform\n" );
+#else  
+        if (len >= sizeof(FILE_ALLOCATION_INFORMATION))
+        {
+            const FILE_ALLOCATION_INFORMATION *info = ptr;
+            if ((status = server_get_unix_fd( handle, 0, &fd, &needs_close, NULL, NULL )))
+                return io->Status = status;
+
+            	if (fallocate( fd, FALLOC_FL_KEEP_SIZE, 0, (off_t)info->AllocationSize.QuadPart ) == -1)
+                    status = errno_to_status( errno );
+            if (needs_close) close( fd );
+        }
+        else status = STATUS_INVALID_PARAMETER_3;
+#endif
+        break;
+
     case FilePositionInformation:
         if (len >= sizeof(FILE_POSITION_INFORMATION))
         {