grub-core/font/font_cmd.c

   1 /* font_cmd.c - Font command definition. */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2003,2005,2006,2007,2008,2009  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/font.h>
  21 #include <grub/dl.h>
  22 #include <grub/misc.h>
  23 #include <grub/command.h>
  24 #include <grub/i18n.h>
  25
  26 static grub_err_t
  27 loadfont_command (grub_command_t cmd __attribute__ ((unused)),
  28                   int argc,
  29                   char **args)
  30 {
  31   if (argc == 0)
  32     return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
  33
  34   while (argc--)
  35     if (grub_font_load (*args++) == 0)
  36       {
  37         if (!grub_errno)
  38           return grub_error (GRUB_ERR_BAD_FONT, "invalid font");
  39         return grub_errno;
  40       }
  41
  42   return GRUB_ERR_NONE;
  43 }
  44
  45 static grub_err_t
  46 lsfonts_command (grub_command_t cmd __attribute__ ((unused)),
  47                  int argc __attribute__ ((unused)),
  48                  char **args __attribute__ ((unused)))
  49 {
  50   struct grub_font_node *node;
  51
  52   grub_puts_ (N_("Loaded fonts:"));
  53   for (node = grub_font_list; node; node = node->next)
  54     {
  55       grub_font_t font = node->value;
  56       grub_printf ("%s\n", grub_font_get_name (font));
  57     }
  58
  59   return GRUB_ERR_NONE;
  60 }
  61
  62 static grub_command_t cmd_loadfont, cmd_lsfonts;
  63
  64 #if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_COREBOOT)
  65 void grub_font_init (void)
  66 #else
  67 GRUB_MOD_INIT(font)
  68 #endif
  69 {
  70   grub_font_loader_init ();
  71
  72   cmd_loadfont =
  73     grub_register_command ("loadfont", loadfont_command,
  74                            N_("FILE..."),
  75                            N_("Specify one or more font files to load."));
  76   cmd_lsfonts =
  77     grub_register_command ("lsfonts", lsfonts_command,
  78                            0, N_("List the loaded fonts."));
  79 }
  80
  81 #if defined (GRUB_MACHINE_MIPS_LOONGSON) || defined (GRUB_MACHINE_COREBOOT)
  82 void grub_font_fini (void)
  83 #else
  84 GRUB_MOD_FINI(font)
  85 #endif
  86 {
  87   /* TODO: Determine way to free allocated resources.
  88      Warning: possible pointer references could be in use.  */
  89
  90   grub_unregister_command (cmd_loadfont);
  91   grub_unregister_command (cmd_lsfonts);
  92 }