// SPDX-License-Identifier: GPL-2.0+

  /*
   * 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.

   */
  
  #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;

  	int flags = HASH_FLAG_ENV;

  #ifdef CONFIG_HASH_VERIFY

  	if (argc < 4)
  		return CMD_RET_USAGE;

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

  		flags |= HASH_FLAG_VERIFY;

  		argc--;
  		argv++;
  	}
  #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

  #define HARGS 6

  #else

  #define HARGS 5
  #endif

  U_BOOT_CMD(

  	hash,	HARGS,	1,	do_hash,
  	"compute hash message digest",
  	"algorithm address count [[*]hash_dest]
  "

  		"    - compute message digest [save to env var / *address]"

  #ifdef CONFIG_HASH_VERIFY
  	"
  hash -v algorithm address count [*]hash
  "
  		"    - verify message digest of memory area to immediate value, 
  "
  		"      env var or *address"

  #endif

  );