1 files changed, 121 insertions, 0 deletions
diff --git a/util/config.c b/util/config.c
new file mode 100644
index 0000000..ebcdd8f
--- /dev/null
+++ b/util/config.c
@@ -0,0 +1,121 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 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 <string.h>
+
+#include <grub/emu/config.h>
+#include <grub/util/misc.h>
+
+void
+grub_util_parse_config (FILE *f, struct grub_util_config *cfg, int simple)
+{
+  char *buffer = NULL;
+  size_t sz = 0;
+  while (getline (&buffer, &sz, f) >= 0)
+    {
+      const char *ptr;
+      for (ptr = buffer; *ptr && grub_isspace (*ptr); ptr++);
+      if (grub_strncmp (ptr, "GRUB_ENABLE_CRYPTODISK=",
+			sizeof ("GRUB_ENABLE_CRYPTODISK=") - 1) == 0)
+	{
+	  ptr += sizeof ("GRUB_ENABLE_CRYPTODISK=") - 1;
+	  if (*ptr == '"' || *ptr == '\'')
+	    ptr++;
+	  if (*ptr == 'y')
+	    cfg->is_cryptodisk_enabled = 1;
+	  continue;
+	}
+      if (grub_strncmp (ptr, "GRUB_DISTRIBUTOR=",
+			sizeof ("GRUB_DISTRIBUTOR=") - 1) == 0)
+	{
+	  char *optr;
+	  enum { NONE, SNGLQUOT, DBLQUOT } state;
+
+	  ptr += sizeof ("GRUB_DISTRIBUTOR=") - 1;
+
+	  if (simple)
+	    {
+	      char *ptr2;
+	      free (cfg->grub_distributor);
+	      cfg->grub_distributor = xstrdup (ptr);
+	      for (ptr2 = cfg->grub_distributor
+		     + grub_strlen (cfg->grub_distributor) - 1;
+		   ptr2 >= cfg->grub_distributor
+		     && (*ptr2 == '\r' || *ptr2 == '\n'); ptr2--);
+	      ptr2[1] = '\0';
+	      continue;
+	    }
+	  free (cfg->grub_distributor);
+	  cfg->grub_distributor = xmalloc (strlen (ptr) + 1);
+	  optr = cfg->grub_distributor;
+	  state = NONE;
+
+	  for (; *ptr; ptr++)
+	    switch (*ptr)
+	      {
+	      case '\\':
+		if (state == SNGLQUOT)
+		  {
+		    *optr++ = *ptr;
+		    continue;
+		  }
+		if (ptr[1])
+		  {
+		    *optr++ = ptr[1];
+		    ptr++;
+		    continue;
+		  }
+		ptr++;
+		break;
+	      case '"':
+		if (state == NONE)
+		  {
+		    state = DBLQUOT;
+		    continue;
+		  }
+		if (state == DBLQUOT)
+		  {
+		    state = NONE;
+		    continue;
+		  }
+		*optr++ = *ptr;
+		continue;
+	      case '\'':
+		if (state == SNGLQUOT)
+		  {
+		    state = NONE;
+		    continue;
+		  }
+		if (state == NONE)
+		  {
+		    state = SNGLQUOT;
+		    continue;
+		  }
+		*optr++ = *ptr;
+		continue;
+	      default:
+		*optr++ = *ptr;
+		continue;
+	      }
+	  *optr = '\0';
+	}
+    }
+}
+