common/cmd_sha1sum.c

   1 /*
   2  * (C) Copyright 2011
   3  * Joe Hershberger, National Instruments, joe.hershberger@ni.com
   4  *
   5  * (C) Copyright 2000
   6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 #include <common.h>
  28 #include <command.h>
  29 #include <hash.h>
  30 #include <sha1.h>
  31
  32 int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  33 {
  34         int flags = HASH_FLAG_ENV;
  35         int ac;
  36         char * const *av;
  37
  38         if (argc < 3)
  39                 return CMD_RET_USAGE;
  40
  41         av = argv + 1;
  42         ac = argc - 1;
  43 #ifdef CONFIG_SHA1SUM_VERIFY
  44         if (strcmp(*av, "-v") == 0) {
  45                 flags |= HASH_FLAG_VERIFY;
  46                 av++;
  47                 ac--;
  48         }
  49 #endif
  50
  51         return hash_command("sha1", flags, cmdtp, flag, ac, av);
  52 }
  53
  54 #ifdef CONFIG_SHA1SUM_VERIFY
  55 U_BOOT_CMD(
  56         sha1sum,        5,      1,      do_sha1sum,
  57         "compute SHA1 message digest",
  58         "address count [[*]sum]\n"
  59                 "    - compute SHA1 message digest [save to sum]\n"
  60         "sha1sum -v address count [*]sum\n"
  61                 "    - verify sha1sum of memory area"
  62 );
  63 #else
  64 U_BOOT_CMD(
  65         sha1sum,        4,      1,      do_sha1sum,
  66         "compute SHA1 message digest",
  67         "address count [[*]sum]\n"
  68                 "    - compute SHA1 message digest [save to sum]"
  69 );
  70 #endif