[people/ms/u-boot.git] / tools / ubsha1.c

/*
 * (C) Copyright 2007
 * Heiko Schocher, DENX Software Engineering, <hs@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 "os_support.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include "sha1.h"

#ifndef __ASSEMBLY__
#define	__ASSEMBLY__		/* Dirty trick to get only #defines	*/
#endif
#include <config.h>
#undef	__ASSEMBLY__

extern void sha1_csum (unsigned char *input, int ilen, unsigned char output[20]);

int main (int argc, char **argv)
{
	unsigned char output[20];
	int i, len;

	char	*imagefile;
	char	*cmdname = *argv;
	unsigned char	*ptr;
	unsigned char	*data;
	struct stat sbuf;
	unsigned char	*ptroff;
	int	ifd;
	int	off;

	if (argc > 1) {
		imagefile = argv[1];
		ifd = open (imagefile, O_RDWR|O_BINARY);
		if (ifd < 0) {
			fprintf (stderr, "%s: Can't open %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}
		if (fstat (ifd, &sbuf) < 0) {
			fprintf (stderr, "%s: Can't stat %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}
		len = sbuf.st_size;
		ptr = (unsigned char *)mmap(0, len,
				    PROT_READ, MAP_SHARED, ifd, 0);
		if (ptr == (unsigned char *)MAP_FAILED) {
			fprintf (stderr, "%s: Can't read %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}

		/* create a copy, so we can blank out the sha1 sum */
		data = malloc (len);
		memcpy (data, ptr, len);
		off = SHA1_SUM_POS;
		ptroff = &data[len +  off];
		for (i = 0; i < SHA1_SUM_LEN; i++) {
			ptroff[i] = 0;
		}

		sha1_csum ((unsigned char *) data, len, (unsigned char *)output);

		printf ("U-Boot sum:\n");
	        for (i = 0; i < 20 ; i++) {
	            printf ("%02X ", output[i]);
	        }
	        printf ("\n");
		/* overwrite the sum in the bin file, with the actual */
		lseek (ifd, SHA1_SUM_POS, SEEK_END);
		if (write (ifd, output, SHA1_SUM_LEN) != SHA1_SUM_LEN) {
			fprintf (stderr, "%s: Can't write %s: %s\n",
				cmdname, imagefile, strerror(errno));
			exit (EXIT_FAILURE);
		}

		free (data);
		(void) munmap((void *)ptr, len);
		(void) close (ifd);
	}

	return EXIT_SUCCESS;
}
Commit	Line	Data
566a494f HS	1	/*
	2	* (C) Copyright 2007
	3	* Heiko Schocher, DENX Software Engineering, <hs@denx.de>
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
2f8d396b	24	#include "os_support.h"
566a494f HS	25	#include <stdio.h>
	26	#include <stdlib.h>
	27	#include <unistd.h>
	28	#include <fcntl.h>
	29	#include <errno.h>
	30	#include <string.h>
566a494f HS	31	#include <sys/stat.h>
	32	#include "sha1.h"
	33
	34	#ifndef __ASSEMBLY__
	35	#define __ASSEMBLY__ /* Dirty trick to get only #defines */
	36	#endif
	37	#include <config.h>
	38	#undef __ASSEMBLY__
	39
566a494f HS	40	extern void sha1_csum (unsigned char *input, int ilen, unsigned char output[20]);
	41
	42	int main (int argc, char **argv)
	43	{
	44	unsigned char output[20];
	45	int i, len;
	46
	47	char *imagefile;
	48	char cmdname = argv;
	49	unsigned char *ptr;
	50	unsigned char *data;
	51	struct stat sbuf;
	52	unsigned char *ptroff;
	53	int ifd;
	54	int off;
	55
	56	if (argc > 1) {
	57	imagefile = argv[1];
	58	ifd = open (imagefile, O_RDWR\|O_BINARY);
	59	if (ifd < 0) {
	60	fprintf (stderr, "%s: Can't open %s: %s\n",
	61	cmdname, imagefile, strerror(errno));
	62	exit (EXIT_FAILURE);
	63	}
	64	if (fstat (ifd, &sbuf) < 0) {
	65	fprintf (stderr, "%s: Can't stat %s: %s\n",
	66	cmdname, imagefile, strerror(errno));
	67	exit (EXIT_FAILURE);
	68	}
	69	len = sbuf.st_size;
	70	ptr = (unsigned char *)mmap(0, len,
	71	PROT_READ, MAP_SHARED, ifd, 0);
	72	if (ptr == (unsigned char *)MAP_FAILED) {
	73	fprintf (stderr, "%s: Can't read %s: %s\n",
	74	cmdname, imagefile, strerror(errno));
	75	exit (EXIT_FAILURE);
	76	}
4ef218f6	77
566a494f HS	78	/* create a copy, so we can blank out the sha1 sum */
	79	data = malloc (len);
	80	memcpy (data, ptr, len);
	81	off = SHA1_SUM_POS;
	82	ptroff = &data[len + off];
	83	for (i = 0; i < SHA1_SUM_LEN; i++) {
	84	ptroff[i] = 0;
	85	}
4ef218f6	86
566a494f HS	87	sha1_csum ((unsigned char ) data, len, (unsigned char )output);
	88
	89	printf ("U-Boot sum:\n");
4ef218f6	90	for (i = 0; i < 20 ; i++) {
566a494f HS	91	printf ("%02X ", output[i]);
	92	}
	93	printf ("\n");
	94	/* overwrite the sum in the bin file, with the actual */
	95	lseek (ifd, SHA1_SUM_POS, SEEK_END);
	96	if (write (ifd, output, SHA1_SUM_LEN) != SHA1_SUM_LEN) {
	97	fprintf (stderr, "%s: Can't write %s: %s\n",
	98	cmdname, imagefile, strerror(errno));
	99	exit (EXIT_FAILURE);
	100	}
4ef218f6	101
566a494f HS	102	free (data);
	103	(void) munmap((void *)ptr, len);
	104	(void) close (ifd);
	105	}
	106
	107	return EXIT_SUCCESS;
	108	}