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d5b76673a5
Some hashing commands permit saving the hash in an environment variable, and verifying a hash from there. But the crc32 command does not support this. In order to permit crc32 to use the generic hashing infrastructure, add a flag to select which behaviour to use. Signed-off-by: Simon Glass <sjg@chromium.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/*
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* (C) Copyright 2011
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* Joe Hershberger, National Instruments, joe.hershberger@ni.com
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*
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* (C) Copyright 2000
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <hash.h>
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#include <sha1.h>
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int do_sha1sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int flags = HASH_FLAG_ENV;
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int ac;
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char * const *av;
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if (argc < 3)
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return CMD_RET_USAGE;
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av = argv + 1;
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ac = argc - 1;
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#ifdef CONFIG_SHA1SUM_VERIFY
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if (strcmp(*av, "-v") == 0) {
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flags |= HASH_FLAG_VERIFY;
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av++;
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ac--;
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}
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#endif
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return hash_command("sha1", flags, cmdtp, flag, ac, av);
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}
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#ifdef CONFIG_SHA1SUM_VERIFY
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U_BOOT_CMD(
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sha1sum, 5, 1, do_sha1sum,
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"compute SHA1 message digest",
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"address count [[*]sum]\n"
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" - compute SHA1 message digest [save to sum]\n"
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"sha1sum -v address count [*]sum\n"
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" - verify sha1sum of memory area"
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);
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#else
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U_BOOT_CMD(
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sha1sum, 4, 1, do_sha1sum,
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"compute SHA1 message digest",
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"address count [[*]sum]\n"
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" - compute SHA1 message digest [save to sum]"
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);
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#endif
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