Re: play.c

[Marco Gerards <metgerards@student.han.nl>]

Vincent Pelletier <subdino2004@yahoo.fr> writes:

Hi Vincent,

> Here is the play command, along with some songs.

Cool, thanks for this neat patch. :-)

> Vincent Pelletier
> Index: commands/i386/pc/play.c
> ===================================================================
> RCS file: commands/i386/pc/play.c
> diff -N commands/i386/pc/play.c
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ commands/i386/pc/play.c	5 Nov 2005 14:06:00 -0000
> @@ -0,0 +1,248 @@
> +/* play.c - command to play a tune  */
> +/*
> + *  GRUB  --  GRand Unified Bootloader
> + *  Copyright (C) 2003  Free Software Foundation, Inc.

Shouldn't it be (C) 2003, 2005 or so?

> +static grub_err_t
> +grub_cmd_play (struct grub_arg_list *state __attribute__ ((unused)),
> +	      int argc, char **args)
> +{
> +  grub_file_t file;
> +  struct note buf;
> +  int tempo;
> +  unsigned int to;
> +
> +  if (argc != 1)
> +    return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");
> +
> +  file = grub_file_open (args[0]);
> +  if (! file)
> +    return 0;
> +
> +  if (grub_file_read (file, (void *) &tempo, sizeof(tempo)) != sizeof(tempo))
> +    return 0;

You have to close the file here.


> +#ifdef GRUB_UTIL
> +void
> +grub_play_init (void)
> +{
> +  grub_register_command ("play", grub_cmd_play, GRUB_COMMAND_FLAG_BOTH,
> +			 "play FILE", "Play a tune", 0);
> +}
> +
> +void
> +grub_play_fini (void)
> +{
> +  grub_unregister_command ("play");
> +}
> +#else /* ! GRUB_UTIL */

This code is quite low level and not needed in GRUB_UTIL.  So you can
just leave this away.  Perhaps the same needs to be done for some
commands that are already in CVS, I'll look at that.

Thanks,
Marco