config.c 2.2 KB

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  1. /*
  2. * GRUB -- GRand Unified Bootloader
  3. * Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013 Free Software Foundation, Inc.
  4. *
  5. * GRUB is free software: you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation, either version 3 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * GRUB is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
  17. */
  18. #include <config.h>
  19. #include <config-util.h>
  20. #include <grub/emu/hostdisk.h>
  21. #include <grub/emu/exec.h>
  22. #include <grub/emu/config.h>
  23. #include <grub/util/install.h>
  24. #include <grub/util/misc.h>
  25. #include <string.h>
  26. #include <sys/types.h>
  27. #include <sys/wait.h>
  28. #include <errno.h>
  29. #include <stdlib.h>
  30. const char *
  31. grub_util_get_config_filename (void)
  32. {
  33. static char *value = NULL;
  34. if (!value)
  35. value = grub_util_path_concat (3, GRUB_SYSCONFDIR,
  36. "default", "grub");
  37. return value;
  38. }
  39. const char *
  40. grub_util_get_pkgdatadir (void)
  41. {
  42. const char *ret = getenv ("pkgdatadir");
  43. if (ret)
  44. return ret;
  45. return GRUB_DATADIR "/" PACKAGE;
  46. }
  47. const char *
  48. grub_util_get_pkglibdir (void)
  49. {
  50. return GRUB_LIBDIR "/" PACKAGE;
  51. }
  52. const char *
  53. grub_util_get_localedir (void)
  54. {
  55. return LOCALEDIR;
  56. }
  57. void
  58. grub_util_load_config (struct grub_util_config *cfg)
  59. {
  60. const char *cfgfile;
  61. FILE *f = NULL;
  62. const char *v;
  63. memset (cfg, 0, sizeof (*cfg));
  64. v = getenv ("GRUB_ENABLE_CRYPTODISK");
  65. if (v && v[0] == 'y' && v[1] == '\0')
  66. cfg->is_cryptodisk_enabled = 1;
  67. v = getenv ("GRUB_DISTRIBUTOR");
  68. if (v)
  69. cfg->grub_distributor = xstrdup (v);
  70. cfgfile = grub_util_get_config_filename ();
  71. if (!grub_util_is_regular (cfgfile))
  72. return;
  73. f = grub_util_fopen (cfgfile, "r");
  74. if (f)
  75. {
  76. grub_util_parse_config (f, cfg, 0);
  77. fclose (f);
  78. }
  79. else
  80. grub_util_warn (_("cannot open configuration file `%s': %s"),
  81. cfgfile, strerror (errno));
  82. }