1 files changed, 30 insertions, 0 deletions
diff --git a/host/lib/fmap.c b/host/lib/fmap.c
new file mode 100644
index 00000000..3c3f340b
--- /dev/null
+++ b/host/lib/fmap.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "fmap.h"
+
+const char* FmapFind(const char* ptr, size_t size)
+{
+  size_t i;
+  for (i=0; i<size; i += FMAP_SEARCH_STRIDE) {
+    if (0 == strncmp(ptr, FMAP_SIGNATURE, FMAP_SIGNATURE_SIZE))
+      return ptr;
+    ptr += FMAP_SEARCH_STRIDE;
+  }
+  return NULL;
+}
+
+int FmapAreaIndex(const FmapHeader* fh, const FmapAreaHeader* ah,
+		const char* name) {
+  int i;
+  for (i = 0; i < fh->fmap_nareas; i++)
+    if (!strcmp((const char*) ah[i].area_name, name))
+      return i;
+  return -1;
+}