Vboot Reference: Make length types explicitly sized.

src/platform/vboot_reference/include/sha_utility.h

 /* 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 message digests.
 */
 
 #ifndef VBOOT_REFERENCE_SHA_UTILITY_H_
 #define VBOOT_REFERENCE_SHA_UTILITY_H_
 
@@ skipping 15 matching lines @@
   int algorithm;  /* Hashing algorithm to use. */
 } DigestContext;
 
 /* Wrappers for message digest algorithms. These are useful when the hashing
  * operation is being done in parallel with something else. DigestContext tracks
  * and stores the state of any digest algorithm (one at any given time).
  */
 
 /* Initialize a digest context for use with signature algorithm [algorithm]. */
 void DigestInit(DigestContext* ctx, int sig_algorithm);
-void DigestUpdate(DigestContext* ctx, const uint8_t* data, int len);
+void DigestUpdate(DigestContext* ctx, const uint8_t* data, uint64_t len);
 
 /* Caller owns the returned digest and must free it. */
 uint8_t* DigestFinal(DigestContext* ctx);
 
 /* Returns the appropriate digest for the data in [input_file]
  * based on the signature [algorithm].
  * Caller owns the returned digest and must free it.
  */
 uint8_t* DigestFile(char* input_file, int sig_algorithm);
 
 /* Returns the appropriate digest of [buf] of length
  * [len] based on the signature [algorithm].
  * Caller owns the returned digest and must free it.
  */
-uint8_t* DigestBuf(const uint8_t* buf, int len, int sig_algorithm);
+uint8_t* DigestBuf(const uint8_t* buf, uint64_t len, int sig_algorithm);
 
 #endif  /* VBOOT_REFERENCE_SHA_UTILITY_H_ */