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barebox/scripts/bareboxcrc32.c

61 lines
1.3 KiB
C

/*
* bareboxcrc32.c - generate crc32 checksum in little endian
*
* Copyright (c) 2013 Michael Grzeschik <mgr@pengutronix.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 version 2
* as published by the Free Software Foundation.
*
* 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.
*
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdint.h>
#include <limits.h>
#include <errno.h>
#include <dirent.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <libgen.h>
#include "compiler.h"
#define debug(...)
#include "../crypto/crc32.c"
int main(int argc, char *argv[])
{
loff_t start = 0, size = ~0;
ulong crc = 0, total = 0;
char *filename = NULL;
int i;
if (!filename && argc < 2) {
printf("usage: %s filename\n", argv[0]);
exit(1);
}
for (i = 1; i < argc; i++) {
filename = argv[i];
if (file_crc(filename, start, size, &crc, &total) < 0)
exit(1);
printf("%08lx\t%s\n", crc, filename);
}
exit(0);
}