u-boot/cmd/hash.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

55 lines
1.2 KiB
C

// 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]\n"
" - compute message digest [save to env var / *address]"
#ifdef CONFIG_HASH_VERIFY
"\nhash -v algorithm address count [*]hash\n"
" - verify message digest of memory area to immediate value, \n"
" env var or *address"
#endif
);