Use uint16_max.

src/platform/vboot_reference/utils/firmware_utility.cc

 // 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 manipulating verified boot firmware images.
 //
 
 #include "firmware_utility.h"
 
 #include <errno.h>
 #include <getopt.h>
+#include <stdint.h>  // Needed for UINT16_MAX.
+#include <stdlib.h>
 #include <unistd.h>
-#include <stdlib.h>
 
 #include <iostream>
 
 extern "C" {
 #include "file_keys.h"
 #include "firmware_image.h"
 #include "padding.h"
 #include "rsa_utility.h"
 #include "sha_utility.h"
 #include "utility.h"
@@ skipping 221 matching lines @@
   if (is_verify_ && root_key_pub_file_.empty()) {
     cerr << "No pre-processed public root key file specified." << "\n";
     return false;
   }
   // Required options for --generate.
   if (is_generate_) {
     if (root_key_file_.empty()) {
       cerr << "No root key file specified." << "\n";
       return false;
     }
-    if (firmware_version_ <= 0 || firmware_version_ > 0xFFFF) {
+    if (firmware_version_ <= 0 || firmware_version_ > UINT16_MAX) {
       cerr << "Invalid or no firmware version specified." << "\n";
       return false;
     }
     if (sign_key_file_.empty()) {
       cerr << "No signing key file specified." << "\n";
       return false;
     }
     if (sign_key_pub_file_.empty()) {
       cerr << "No pre-processed public signing key file specified." << "\n";
       return false;
     }
-    if (key_version_ <= 0 || key_version_ > 0xFFFF) {
+    if (key_version_ <= 0 || key_version_ > UINT16_MAX) {
       cerr << "Invalid or no key version specified." << "\n";
       return false;
     }
     if (sign_algorithm_ < 0 || sign_algorithm_ >= kNumAlgorithms) {
       cerr << "Invalid or no signing key algorithm specified." << "\n";
       return false;
     }
     if (out_file_.empty()) {
       cerr <<"No output file specified." << "\n";
       return false;
@@ skipping 18 matching lines @@
   }
   if (fu.is_verify()) {
     cerr << "Verification ";
     if(fu.VerifySignedImage())
       cerr << "SUCCESS.\n";
     else
       cerr << "FAILURE.\n";
   }
   return 0;
 }