C++ (Cpp) grub_command_execute Examples

Example #1

File: menu.c Project: Firef0x/burg-new

/* Run a menu entry.  */
void
grub_menu_execute_entry(grub_menu_entry_t entry)
{
  grub_err_t err = GRUB_ERR_NONE;

  if (entry->restricted)
    err = grub_normal_check_authentication (entry->users);

  if (err)
    {
      grub_print_error ();
      grub_errno = GRUB_ERR_NONE;
      return;
    }

  grub_env_set ("chosen", entry->title);

  grub_parser_execute ((char *) entry->sourcecode);

  if (grub_errno == GRUB_ERR_NONE && grub_loader_is_loaded ())
    /* Implicit execution of boot, only if something is loaded.  */
    grub_command_execute ("boot", 0, 0);
}

Example #2

File: menu.c Project: kphillisjr/burg

/* Run a menu entry.  */
static void
grub_menu_execute_entry(grub_menu_entry_t entry, int auto_boot)
{
  grub_err_t err = GRUB_ERR_NONE;
  int errs_before;
  grub_menu_t menu = NULL;
  char *optr, *buf, *oldchosen = NULL, *olddefault = NULL;
  const char *ptr, *chosen, *def;
  grub_size_t sz = 0;

  if (entry->restricted)
    err = grub_auth_check_authentication (entry->users);

  if (err)
    {
      grub_print_error ();
      grub_errno = GRUB_ERR_NONE;
      return;
    }

  errs_before = grub_err_printed_errors;

  chosen = grub_env_get ("chosen");
  def = grub_env_get ("default");

  if (entry->submenu)
    {
      grub_env_context_open ();
      menu = grub_zalloc (sizeof (*menu));
      if (! menu)
	return;
      grub_env_set_menu (menu);
      if (auto_boot)
	grub_env_set ("timeout", "0");
    }

  for (ptr = entry->id; *ptr; ptr++)
    sz += (*ptr == '>') ? 2 : 1;
  if (chosen)
    {
      oldchosen = grub_strdup (chosen);
      if (!oldchosen)
	grub_print_error ();
    }
  if (def)
    {
      olddefault = grub_strdup (def);
      if (!olddefault)
	grub_print_error ();
    }
  sz++;
  if (chosen)
    sz += grub_strlen (chosen);
  sz++;
  buf = grub_malloc (sz);
  if (!buf)
    grub_print_error ();
  else
    {
      optr = buf;
      if (chosen)
	{
	  optr = grub_stpcpy (optr, chosen);
	  *optr++ = '>';
	}
      for (ptr = entry->id; *ptr; ptr++)
	{
	  if (*ptr == '>')
	    *optr++ = '>';
	  *optr++ = *ptr;
	}
      *optr = 0;
      grub_env_set ("chosen", buf);
      grub_env_export ("chosen");
      grub_free (buf);
    }

  for (ptr = def; ptr && *ptr; ptr++)
    {
      if (ptr[0] == '>' && ptr[1] == '>')
	{
	  ptr++;
	  continue;
	}
      if (ptr[0] == '>')
	break;
    }

  if (ptr && ptr[0] && ptr[1])
    grub_env_set ("default", ptr + 1);
  else
    grub_env_unset ("default");

  grub_script_execute_sourcecode (entry->sourcecode, entry->argc, entry->args);

  if (errs_before != grub_err_printed_errors)
    grub_wait_after_message ();

  if (grub_errno == GRUB_ERR_NONE && grub_loader_is_loaded ())
    /* Implicit execution of boot, only if something is loaded.  */
    grub_command_execute ("boot", 0, 0);

  if (entry->submenu)
    {
      if (menu && menu->size)
	{
	  grub_show_menu (menu, 1, auto_boot);
	  grub_normal_free_menu (menu);
	}
      grub_env_context_close ();
    }
  if (oldchosen)
    grub_env_set ("chosen", oldchosen);
  else
    grub_env_unset ("chosen");
  if (olddefault)
    grub_env_set ("default", olddefault);
  else
    grub_env_unset ("default");
  grub_env_unset ("timeout");
}