/*
   * Copyright (c) 2012 The Chromium OS Authors.
   *
   * (C) Copyright 2011
   * Joe Hershberger, National Instruments, joe.hershberger@ni.com
   *
   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *

   * SPDX-License-Identifier:	GPL-2.0+

   */
  
  #include <common.h>
  #include <command.h>
  #include <hash.h>

  #include <linux/ctype.h>

  
  static int do_hash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  {

  	char *s;

  #ifdef CONFIG_HASH_VERIFY

  	int flags = HASH_FLAG_ENV;

  	if (argc < 4)
  		return CMD_RET_USAGE;

  	if (!strcmp(argv[1], "-v")) {

  		flags |= HASH_FLAG_VERIFY;

  		argc--;
  		argv++;
  	}

  #else

  	const int flags = HASH_FLAG_ENV;

  #endif
  	/* Move forward to 'algorithm' parameter */
  	argc--;
  	argv++;

  	for (s = *argv; *s; s++)
  		*s = tolower(*s);

  	return hash_command(*argv, flags, cmdtp, flag, argc - 1, argv + 1);

  }
  
  #ifdef CONFIG_HASH_VERIFY
  U_BOOT_CMD(
  	hash,	6,	1,	do_hash,
  	"compute hash message digest",
  	"algorithm address count [[*]sum_dest]
  "
  		"    - compute message digest [save to env var / *address]
  "
  	"hash -v algorithm address count [*]sum
  "
  		"    - verify hash of memory area with env var / *address"
  );
  #else
  U_BOOT_CMD(
  	hash,	5,	1,	do_hash,
  	"compute message digest",
  	"algorithm address count [[*]sum_dest]
  "
  		"    - compute message digest [save to env var / *address]"
  );
  #endif