/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT drive_process_irp_write(DRIVE_DEVICE* drive, IRP* irp)
{
DRIVE_FILE* file;
UINT32 Length;
UINT64 Offset;
Stream_Read_UINT32(irp->input, Length);
Stream_Read_UINT64(irp->input, Offset);
Stream_Seek(irp->input, 20); /* Padding */
file = drive_get_file_by_id(drive, irp->FileId);
if (!file)
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
}
else if (!drive_file_seek(file, Offset))
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
}
else if (!drive_file_write(file, Stream_Pointer(irp->input), Length))
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
}
Stream_Write_UINT32(irp->output, Length);
Stream_Write_UINT8(irp->output, 0); /* Padding */
return irp->Complete(irp);
}
static void drive_process_irp_write(DRIVE_DEVICE* disk, IRP* irp)
{
DRIVE_FILE* file;
UINT32 Length;
UINT64 Offset;
stream_read_UINT32(irp->input, Length);
stream_read_UINT64(irp->input, Offset);
stream_seek(irp->input, 20); /* Padding */
file = drive_get_file_by_id(disk, irp->FileId);
if (file == NULL)
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
DEBUG_WARN("FileId %d not valid.", irp->FileId);
}
else if (!drive_file_seek(file, Offset))
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
DEBUG_WARN("seek %s(%d) failed.", file->fullpath, file->id);
}
else if (!drive_file_write(file, stream_get_tail(irp->input), Length))
{
irp->IoStatus = STATUS_UNSUCCESSFUL;
Length = 0;
DEBUG_WARN("write %s(%d) failed.", file->fullpath, file->id);
}
else
{
DEBUG_SVC("write %llu-%llu to %s(%d).", Offset, Offset + Length, file->fullpath, file->id);
}
stream_write_UINT32(irp->output, Length);
stream_write_BYTE(irp->output, 0); /* Padding */
irp->Complete(irp);
}