Exemple #1
0
static grub_err_t
grub_cmd_cat (grub_extcmd_context_t ctxt, int argc, char **args)
{
  struct grub_arg_list *state = ctxt->state;
  int dos = 0;
  grub_file_t file;
  char buf[GRUB_DISK_SECTOR_SIZE];
  grub_ssize_t size;
  int key = 0;

  if (state[0].set)
    dos = 1;

  if (argc != 1)
    return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");

  file = grub_file_open (args[0]);
  if (! file)
    return grub_errno;

  while ((size = grub_file_read (file, buf, sizeof (buf))) > 0
	 && key != GRUB_TERM_ESC)
    {
      int i;

      for (i = 0; i < size; i++)
	{
	  unsigned char c = buf[i];

	  if ((grub_isprint (c) || grub_isspace (c)) && c != '\r')
	    grub_printf ("%c", c);
	  else if (dos && c == '\r' && i + 1 < size && buf[i + 1] == '\n')
	    {
	      grub_printf ("\n");
	      i++;
	    }
	  else
	    {
	      grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
	      grub_printf ("<%x>", (int) c);
	      grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
	    }
	}

      while (grub_checkkey () >= 0 &&
	     (key = grub_getkey ()) != GRUB_TERM_ESC)
	;
    }

  grub_xputs ("\n");
  grub_refresh ();
  grub_file_close (file);

  return 0;
}
Exemple #2
0
/* Based on grub_millisleep() from kern/generic/millisleep.c.  */
static int
grub_interruptible_millisleep (grub_uint32_t ms)
{
  grub_uint64_t start;

  start = grub_get_time_ms ();

  while (grub_get_time_ms () - start < ms)
    if (grub_checkkey () >= 0 && grub_getkey () == GRUB_TERM_ESC)
      return 1;

  return 0;
}
Exemple #3
0
static int
grub_check_keyboard (void)
{
  int mods = grub_getkeystatus ();
  if (mods >= 0 && (mods & GRUB_TERM_STATUS_SHIFT) != 0)
    return 1;

  if (grub_checkkey () >= 0 &&
      GRUB_TERM_ASCII_CHAR (grub_getkey ()) == GRUB_TERM_ESC)
    return 1;

  return 0;
}
Exemple #4
0
/* Wait until the user pushes any key so that the user
   can see what happened.  */
void
grub_wait_after_message (void)
{
  grub_uint64_t endtime;
  grub_xputs ("\n");
  grub_printf_ (N_("Press any key to continue..."));
  grub_refresh ();

  endtime = grub_get_time_ms () + 10000;

  while (grub_get_time_ms () < endtime)
    if (grub_checkkey () >= 0)
      {
	grub_getkey ();
	break;
      }

  grub_xputs ("\n");
}
Exemple #5
0
/* Show the menu and handle menu entry selection.  Returns the menu entry
   index that should be executed or -1 if no entry should be executed (e.g.,
   Esc pressed to exit a sub-menu or switching menu viewers).
   If the return value is not -1, then *AUTO_BOOT is nonzero iff the menu
   entry to be executed is a result of an automatic default selection because
   of the timeout.  */
static int
run_menu (grub_menu_t menu, int nested, int *auto_boot)
{
  grub_uint64_t saved_time;
  int default_entry, current_entry;
  int timeout;

  default_entry = get_entry_number (menu, "default");

  /* If DEFAULT_ENTRY is not within the menu entries, fall back to
     the first entry.  */
  if (default_entry < 0 || default_entry >= menu->size)
    default_entry = 0;

  /* If timeout is 0, drawing is pointless (and ugly).  */
  if (grub_menu_get_timeout () == 0)
    {
      *auto_boot = 1;
      return default_entry;
    }

  current_entry = default_entry;

  /* Initialize the time.  */
  saved_time = grub_get_time_ms ();

 refresh:
  menu_init (current_entry, menu, nested);

  timeout = grub_menu_get_timeout ();

  if (timeout > 0)
    menu_print_timeout (timeout);
  else
    clear_timeout ();

  while (1)
    {
      int c;
      timeout = grub_menu_get_timeout ();

      if (grub_normal_exit_level)
	return -1;

      if (timeout > 0)
	{
	  grub_uint64_t current_time;

	  current_time = grub_get_time_ms ();
	  if (current_time - saved_time >= 1000)
	    {
	      timeout--;
	      grub_menu_set_timeout (timeout);
	      saved_time = current_time;
	      menu_print_timeout (timeout);
	    }
	}

      if (timeout == 0)
	{
	  grub_env_unset ("timeout");
          *auto_boot = 1;
	  menu_fini ();
	  return default_entry;
	}

      if (grub_checkkey () >= 0 || timeout < 0)
	{
	  c = grub_getkey ();

	  if (timeout >= 0)
	    {
	      grub_env_unset ("timeout");
	      grub_env_unset ("fallback");
	      clear_timeout ();
	    }

	  switch (c)
	    {
	    case GRUB_TERM_KEY_HOME:
	    case GRUB_TERM_CTRL | 'a':
	      current_entry = 0;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case GRUB_TERM_KEY_END:
	    case GRUB_TERM_CTRL | 'e':
	      current_entry = menu->size - 1;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case GRUB_TERM_KEY_UP:
	    case GRUB_TERM_CTRL | 'p':
	    case '^':
	      if (current_entry > 0)
		current_entry--;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case GRUB_TERM_CTRL | 'n':
	    case GRUB_TERM_KEY_DOWN:
	    case 'v':
	      if (current_entry < menu->size - 1)
		current_entry++;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case GRUB_TERM_CTRL | 'g':
	    case GRUB_TERM_KEY_PPAGE:
	      if (current_entry < GRUB_MENU_PAGE_SIZE)
		current_entry = 0;
	      else
		current_entry -= GRUB_MENU_PAGE_SIZE;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case GRUB_TERM_CTRL | 'c':
	    case GRUB_TERM_KEY_NPAGE:
	      if (current_entry + GRUB_MENU_PAGE_SIZE < menu->size)
		current_entry += GRUB_MENU_PAGE_SIZE;
	      else
		current_entry = menu->size - 1;
	      menu_set_chosen_entry (current_entry);
	      break;

	    case '\n':
	    case '\r':
	    case GRUB_TERM_KEY_RIGHT:
	    case GRUB_TERM_CTRL | 'f':
	      menu_fini ();
              *auto_boot = 0;
	      return current_entry;

	    case '\e':
	      if (nested)
		{
		  menu_fini ();
		  return -1;
		}
	      break;

	    case 'c':
	      menu_fini ();
	      grub_cmdline_run (1);
	      goto refresh;

	    case 'e':
	      menu_fini ();
		{
		  grub_menu_entry_t e = grub_menu_get_entry (menu, current_entry);
		  if (e)
		    grub_menu_entry_run (e);
		}
	      goto refresh;

	    default:
	      {
		grub_menu_entry_t entry;
		int i;
		for (i = 0, entry = menu->entry_list; i < menu->size;
		     i++, entry = entry->next)
		  if (entry->hotkey == c)
		    {
		      menu_fini ();
		      *auto_boot = 0;
		      return i;
		    }
	      }
	      break;
	    }
	}
    }