/*

   * (C) Copyright 2011
   * Joe Hershberger, National Instruments, joe.hershberger@ni.com
   *

   * (C) Copyright 2000
   * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   *
   * See file CREDITS for list of people who contributed to this
   * project.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation; either version 2 of
   * the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
   * MA 02111-1307 USA
   */
  
  #include <common.h>
  #include <command.h>

  #include <hash.h>

  #include <sha1.h>

  int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  {

  	int flags = HASH_FLAG_ENV;

  	int ac;
  	char * const *av;
  
  	if (argc < 3)
  		return CMD_RET_USAGE;
  
  	av = argv + 1;
  	ac = argc - 1;

  #ifdef CONFIG_SHA1SUM_VERIFY

  	if (strcmp(*av, "-v") == 0) {

  		flags |= HASH_FLAG_VERIFY;

  		av++;
  		ac--;

  	}

  #endif

  	return hash_command("sha1", flags, cmdtp, flag, ac, av);

  }

  #ifdef CONFIG_SHA1SUM_VERIFY
  U_BOOT_CMD(
  	sha1sum,	5,	1,	do_sha1sum,
  	"compute SHA1 message digest",

  	"address count [[*]sum]
  "
  		"    - compute SHA1 message digest [save to sum]
  "

  	"sha1sum -v address count [*]sum
  "
  		"    - verify sha1sum of memory area"
  );
  #else

  U_BOOT_CMD(

  	sha1sum,	4,	1,	do_sha1sum,

  	"compute SHA1 message digest",

  	"address count [[*]sum]
  "
  		"    - compute SHA1 message digest [save to sum]"

  );

  #endif