Vboot Reference: Make length types explicitly sized.

src/platform/vboot_reference/include/firmware_image.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.
  *
  * Data structure and API definitions for a verified boot firmware image.
  */
 
 #ifndef VBOOT_REFERENCE_FIRMWARE_IMAGE_H_
 #define VBOOT_REFERENCE_FIRMWARE_IMAGE_H_
 
@@ skipping 18 matching lines @@
                                       * key. */
   uint8_t* firmware_sign_key;  /* Pre-processed public half of signing key. */
   uint16_t firmware_key_version;  /* Key Version# for preventing rollbacks. */
   uint8_t header_checksum[SHA512_DIGEST_SIZE];  /* SHA-512 hash of the header.*/
 
   uint8_t firmware_key_signature[RSA8192NUMBYTES];  /* Signature of the header
                                                      * above. */
 
   /* Firmware Preamble. */
   uint16_t firmware_version;  /* Firmware Version# for preventing rollbacks.*/
-  uint32_t firmware_len;  /* Length of the rest of the R/W firmware data. */
+  uint64_t firmware_len;  /* Length of the rest of the R/W firmware data. */
   uint8_t preamble[FIRMWARE_PREAMBLE_SIZE];  /* Remaining preamble data.*/
 
   uint8_t* preamble_signature;  /* Signature over the preamble. */
 
   /* The firmware signature comes first as it may allow us to parallelize
    * the firmware data fetch and RSA public operation.
    */
   uint8_t* firmware_signature;  /* Signature on [firmware_data]. */
   uint8_t* firmware_data;  /* Rest of firmware data */
 
@@ skipping 24 matching lines @@
  *
  * Caller owns the returned pointer and must Free() it.
  */
 uint8_t* GetFirmwarePreambleBlob(const FirmwareImage* image);
 
 /* Get a verified firmware binary blob from an [image] and fill its
  * length into blob_len.
  *
  * Caller owns the returned pointer and must Free() it.
  */
-uint8_t* GetFirmwareBlob(const FirmwareImage* image, int* blob_len);
+uint8_t* GetFirmwareBlob(const FirmwareImage* image, uint64_t* blob_len);
 
 /* Write firmware data from [image] into a file named [input_file].
  *
  * Return 1 on success, 0 on failure.
  */
 int WriteFirmwareImage(const char* input_file,
                        const FirmwareImage* image);
 
 
 /* Pretty print the contents of [image]. Only headers and metadata information
@@ skipping 88 matching lines @@
 int AddFirmwareKeySignature(FirmwareImage* image, const char* root_key_file);
 
 /* Add firmware and preamble signature to a firmware image [image]
  * using the private signing key in file [signing_key_file].
  *
  * Return 1 on success, 0 on failure.
  */
 int AddFirmwareSignature(FirmwareImage* image, const char* signing_key_file);
 
 #endif  /* VBOOT_REFERENCE_FIRMWARE_IMAGE_H_ */