Change VerifyFirmware() to take separate pointers to firmware verification header and firmware data.

src/platform/vboot_reference/misclibs/file_keys.c

 /* Copyright (c) 2010 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.
  *
  * Utility functions for file and key handling.
  */
 
 #include "file_keys.h"
 
 #include <fcntl.h>
@@ skipping 12 matching lines @@
   int fd;
   struct stat stat_fd;
   uint8_t* buf = NULL;
 
   if ((fd = open(input_file, O_RDONLY)) == -1) {
     debug("Couldn't open file.\n");
     return NULL;
   }
 
   if (-1 == fstat(fd, &stat_fd)) {
-    debug("Couldn't stat key file\n");
+    debug("Couldn't stat file\n");
     return NULL;
   }
   *len = stat_fd.st_size;
 
-  /* Read entire key binary blob into a buffer. */
   buf = (uint8_t*) Malloc(*len);
   if (!buf)
     return NULL;
 
   if (*len != read(fd, buf, *len)) {
-    debug("Couldn't read key into a buffer.\n");
+    debug("Couldn't read file into a buffer.\n");
     return NULL;
   }
 
   close(fd);
   return buf;
 }
 
 RSAPublicKey* RSAPublicKeyFromFile(const char* input_file) {
   uint64_t len;
   RSAPublicKey* key = NULL;
@@ skipping 56 matching lines @@
   if (fread(signature, signature_size, 1, cmd_out) != 1) {
     debug("Couldn't read signature.\n");
     pclose(cmd_out);
     Free(signature);
     return NULL;
   }
 
   pclose(cmd_out);
   return signature;
 }