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

src/platform/vboot_reference/tests/verify_firmware_fuzz_driver.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 for aiding fuzz testing of firmware image verification code.
  */
 
 #include <stdio.h>
 
 #include "file_keys.h"
 #include "firmware_image.h"
 #include "utility.h"
 
-int VerifySignedFirmware(const char* image_file,
-                         const char* root_key_file) {
+int VerifySignedFirmware(const char* root_key_file,
+                         const char* verification_file,
+                         const char* firmware_file) {
   int error, error_code = 0;
   uint64_t len;
-  uint8_t* firmware_blob = BufferFromFile(image_file, &len);
+  uint8_t* verification_blob = BufferFromFile(verification_file, &len);
+  uint8_t* firmware_blob = BufferFromFile(firmware_file, &len);
   uint8_t* root_key_blob = BufferFromFile(root_key_file, &len);
 
   if (!root_key_blob) {
     fprintf(stderr, "Couldn't read pre-processed public root key.\n");
     error_code = 1;
   }
 
   if (!error_code && !firmware_blob) {
-    fprintf(stderr, "Couldn't read firmware image or malformed image.\n");
+    fprintf(stderr, "Couldn't read firmware image.\n");
     error_code = 1;
   }
 
-  if (!error_code && (error = VerifyFirmware(root_key_blob, firmware_blob))) {
+  if (!error_code && !verification_blob) {
+    fprintf(stderr, "Couldn't read verification data image.\n");
+    error_code = 1;
+  }
+
+  if (!error_code && (error = VerifyFirmware(root_key_blob,
+                                             verification_blob,
+                                             firmware_blob))) {
     fprintf(stderr, "%s\n", VerifyFirmwareErrorString(error));
     error_code = 1;
   }
   Free(root_key_blob);
   Free(firmware_blob);
   if (error_code)
     return 0;
   else
     return 1;
 }
 
 int main(int argc, char* argv[]) {
-  if (argc != 3) {
-    fprintf(stderr, "Usage: %s <image_to_verify> <root_keyb>\n", argv[0]);
+  if (argc != 4) {
+    fprintf(stderr, "Usage: %s <verification blob> <image_to_verify> <root_keyb>"
+            "\n", argv[0]);
     return -1;
   }
-  if (VerifySignedFirmware(argv[1], argv[2])) {
+  if (VerifySignedFirmware(argv[3], argv[1], argv[2])) {
     fprintf(stderr, "Verification SUCCESS!\n");
     return 0;
-  }
-  else {
+  } else {
     fprintf(stderr, "Verification FAILURE!\n");
     return -1;
   }
 }