1 files changed, 74 insertions, 0 deletions
diff --git a/grub-core/commands/fileXX.c b/grub-core/commands/fileXX.c
new file mode 100644
index 0000000..c17d26c
--- /dev/null
+++ b/grub-core/commands/fileXX.c
@@ -0,0 +1,74 @@
+/*
+ *  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 <grub/fileid.h>
+#include <grub/elfload.h>
+#include <grub/misc.h>
+
+#pragma GCC diagnostic ignored "-Wcast-align"
+
+int
+grub_file_check_netbsdXX (grub_elf_t elf)
+{
+  Elf_Shdr *s, *s0;
+
+  grub_size_t shnum = elf->ehdr.ehdrXX.e_shnum;
+  grub_size_t shentsize = elf->ehdr.ehdrXX.e_shentsize;
+  grub_size_t shsize = shnum * shentsize;
+  grub_off_t stroff;
+
+  if (!shnum || !shentsize)
+    return 0;
+
+  s0 = grub_malloc (shsize);
+  if (!s0)
+    return 0;
+
+  if (grub_file_seek (elf->file, elf->ehdr.ehdrXX.e_shoff) == (grub_off_t) -1)
+    goto fail;
+
+  if (grub_file_read (elf->file, s0, shsize) != (grub_ssize_t) shsize)
+    goto fail;
+
+  s = (Elf_Shdr *) ((char *) s0 + elf->ehdr.ehdrXX.e_shstrndx * shentsize);
+  stroff = s->sh_offset;
+
+  for (s = s0; s < (Elf_Shdr *) ((char *) s0 + shnum * shentsize);
+       s = (Elf_Shdr *) ((char *) s + shentsize))
+    {
+      char name[sizeof(".note.netbsd.ident")];
+      grub_memset (name, 0, sizeof (name));
+      if (grub_file_seek (elf->file, stroff + s->sh_name) == (grub_off_t) -1)
+	goto fail;
+
+      if (grub_file_read (elf->file, name, sizeof (name)) != (grub_ssize_t) sizeof (name))
+	{
+	  if (grub_errno)
+	    goto fail;
+	  continue;
+	}
+      if (grub_memcmp (name, ".note.netbsd.ident",
+		       sizeof(".note.netbsd.ident")) != 0)
+	continue;
+      grub_free (s0);
+      return 1;
+    }
+ fail:
+  grub_free (s0);
+  return 0;
+}