1 files changed, 139 insertions, 0 deletions
diff --git a/grub-core/osdep/unix/config.c b/grub-core/osdep/unix/config.c
new file mode 100644
index 0000000..7d63251
--- /dev/null
+++ b/grub-core/osdep/unix/config.c
@@ -0,0 +1,139 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <config-util.h>
+
+#include <grub/emu/hostdisk.h>
+#include <grub/emu/exec.h>
+#include <grub/emu/config.h>
+#include <grub/util/install.h>
+#include <grub/util/misc.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <stdlib.h>
+
+const char *
+grub_util_get_config_filename (void)
+{
+  static char *value = NULL;
+  if (!value)
+    value = grub_util_path_concat (3, GRUB_SYSCONFDIR,
+				   "default", "grub");
+  return value;
+}
+
+const char *
+grub_util_get_pkgdatadir (void)
+{
+  const char *ret = getenv ("pkgdatadir");
+  if (ret)
+    return ret;
+  return GRUB_DATADIR "/" PACKAGE;
+}
+
+const char *
+grub_util_get_pkglibdir (void)
+{
+  return GRUB_LIBDIR "/" PACKAGE;
+}
+
+const char *
+grub_util_get_localedir (void)
+{
+  return LOCALEDIR;
+}
+
+void
+grub_util_load_config (struct grub_util_config *cfg)
+{
+  pid_t pid;
+  const char *argv[4];
+  char *script, *ptr;
+  const char *cfgfile, *iptr;
+  FILE *f = NULL;
+  int fd;
+  const char *v;
+
+  memset (cfg, 0, sizeof (*cfg));
+
+  v = getenv ("GRUB_ENABLE_CRYPTODISK");
+  if (v && v[0] == 'y' && v[1] == '\0')
+    cfg->is_cryptodisk_enabled = 1;
+
+  v = getenv ("GRUB_DISTRIBUTOR");
+  if (v)
+    cfg->grub_distributor = xstrdup (v);
+
+  cfgfile = grub_util_get_config_filename ();
+  if (!grub_util_is_regular (cfgfile))
+    return;
+
+  argv[0] = "sh";
+  argv[1] = "-c";
+
+  script = xcalloc (4, strlen (cfgfile) + 300);
+
+  ptr = script;
+  memcpy (ptr, ". '", 3);
+  ptr += 3;
+  for (iptr = cfgfile; *iptr; iptr++)
+    {
+      if (*iptr == '\\')
+	{
+	  memcpy (ptr, "'\\''", 4);
+	  ptr += 4;
+	  continue;
+	}
+      *ptr++ = *iptr;
+    }
+
+  strcpy (ptr, "'; printf \"GRUB_ENABLE_CRYPTODISK=%s\\nGRUB_DISTRIBUTOR=%s\\n\" "
+	  "\"$GRUB_ENABLE_CRYPTODISK\" \"$GRUB_DISTRIBUTOR\"");
+
+  argv[2] = script;
+  argv[3] = '\0';
+
+  pid = grub_util_exec_pipe (argv, &fd);
+  if (pid)
+    f = fdopen (fd, "r");
+  if (f)
+    {
+      grub_util_parse_config (f, cfg, 1);
+      fclose (f);
+    }
+  if (pid)
+    {
+      close (fd);
+      waitpid (pid, NULL, 0);
+    }
+  if (f)
+    return;
+
+  f = grub_util_fopen (cfgfile, "r");
+  if (f)
+    {
+      grub_util_parse_config (f, cfg, 0);
+      fclose (f);
+    }
+  else
+    grub_util_warn (_("cannot open configuration file `%s': %s"),
+		    cfgfile, strerror (errno));
+}